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Document:	DECserver 90L+ Owner's Manual
Order Number:	EK-DSRVG-OM
Revision:	001
Pages:	112
Original Filename:

OCR Text

DECserver 90L+
Owner’s Manual
Order Number: EK-DSRVG-OM.001

January 1992
The information in this document is subject to change without notice and should not be construed
as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no
responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not supplied
by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to restrictions
as set forth in subparagraph (c) (1) (ii) of the Rights in Technical data and Computer Software
clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1992.
All Rights Reserved.
Printed in U.S.A.
FCC NOTICE: The equipment described in this manual generates, uses and may emit radio
frequency energy. The equipment has been type tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable protection against such radio frequency interference when operated in a
commercial environment. Operation of this equipment in a residential area may cause interference,
in which case the user at his own expense may be required to take measures to correct the
interference.
The following are trademarks of Digital Equipment Corporation: DEC, DECbridge, DECconnect,
DECnet, DECserver, Digital, VMS, LAT, VAX, and the DIGITAL logo.

This document was prepared using VAX DOCUMENT, Version 2.0.

Contents
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vii

1 Overview
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2

2 Installing the DECserver 90L+
Standalone Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mount DECserver 90L+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove Cover (if necessary). . . . . . . . . . . . . . . . . . . . . . . . . . .
Make Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start Terminal Session. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backplane Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove Cover (if necessary). . . . . . . . . . . . . . . . . . . . . . . . . . .
Mount DECserver 90L+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start Terminal Session. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–1
2–3
2–4
2–4
2–4
2–5
2–5
2–5
2–6
2–8
2–8
2–9

3 Operating the DECserver 90L+
Using a Terminal or Personal Computer . . . . . . . . . . . . . . . . . . . .
Establishing a Terminal Session . . . . . . . . . . . . . . . . . . . . . . .
Ending a Terminal Session . . . . . . . . . . . . . . . . . . . . . . . . . . .
Last Number Redial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupting a Terminal Session . . . . . . . . . . . . . . . . . . . . . . .
Resuming an Interrupted Terminal Session . . . . . . . . . . . . . . .
Cycle Forward from an Interrupted Terminal Session . . . . . . .
Cycle Backward from an Interrupted Terminal Session . . . . . .

3–1
3–1
3–2
3–3
3–3
3–5
3–5
3–5

iii

Disconnecting an Interrupted Terminal Session . . . . . . . . . . . .
Using MOP Console Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating as a Console Requester . . . . . . . . . . . . . . . . . . . . . .
Operating as a Console Server . . . . . . . . . . . . . . . . . . . . . . . . .
Using a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECserver 90L+ Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECserver 90L+ Information and Error Codes . . . . . . . . . . . . . . .

3–6
3–6
3–7
3–7
3–7
3–8
3–10

4 Managing the DECserver 90L+
Local Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing MOP from VMS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing MOP from ULTRIX . . . . . . . . . . . . . . . . . . . . . . . . .
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SET Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Port Parameters . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting and Clearing Authorized Operation . . . . . . . . . . . .
Enabling and Disabling AutoConfigure . . . . . . . . . . . . . . .
Enabling and Disabling Dedicated Service . . . . . . . . . . . . .
Enabling and Disabling Manager Mode . . . . . . . . . . . . . . .
Enabling and Disabling On-Demand Loading . . . . . . . . . .
Changing Password by Menu . . . . . . . . . . . . . . . . . . . . . . .
Enabling and Disabling Ports . . . . . . . . . . . . . . . . . . . . . .
Enabling and Disabling Preferred Service . . . . . . . . . . . . .
Setting Server Parameters . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW PORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW SERVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW DEDICATED/PREFERRED SERVICE . . . . . . . . . .
RESET Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Troubleshooting the DECserver 90L+

4–2
4–2
4–2
4–4
4–5
4–6
4–6
4–6
4–10
4–14
4–18
4–22
4–26
4–30
4–32
4–36
4–40
4–43
4–43
4–47
4–49
4–50
4–51
4–54

A Specifications and Parts List
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECserver 90L+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–2
A–2
A–2
A–3
A–3
A–3
A–3
A–5
A–6

B Related Documentation
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B–1

Index
Figures
1–1
1–2
2–1
2–2
2–3
A–1

Sample DECserver 90L+ Connection . . . . . . . . . . . . . .
DECserver 90L+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECserver 90L+ Standalone Installation . . . . . . . . . . .
Removing the Back Cover of the DECserver 90L+ . . . .
DECserver 90L+ Backplane Installation . . . . . . . . . . .
Port Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2
1–4
2–2
2–3
2–7
A–4

Supported Terminal Characteristics . . . . . . . . . . . . . . .
DECserver 90L+ User Commands . . . . . . . . . . . . . . . .
DECserver 90L+ Information and Error Codes . . . . . .
Ethernet Circuit Names for VMS-Based Systems . . . .
Ethernet Circuit Names for ULTRIX-Based
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Port Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Server Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Port Status Description . . . . . . . . . . . . . . . . . . . . . . . .
Command Line recall and editing . . . . . . . . . . . . . . . .

1–3
3–8
3–10
4–3

Tables
1–1
3–1
3–2
4–1
4–2
4–3
4–4
4–5
4–6

4–4
4–7
4–40
4–43
4–53
v

5–1
A–1
A–2
A–3
A–4
A–5
A–6

DECserver 90L+ Troubleshooting . . . . . . . . . . . . . . . .
MMJ Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LAT Server Characteristics . . . . . . . . . . . . . . . . . . . . .
LAT Port Characteristics . . . . . . . . . . . . . . . . . . . . . . .
Standalone Installation Kit Contents . . . . . . . . . . . . . .
DEChub 90 Ethernet Backplane Installation Kit
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–1
A–4
A–5
A–6
A–6
A–7
A–7

About This Manual
This guide gives an overview of the DECserver 90L+ and describes how to install,
operate, manage, and troubleshoot the DECserver 90L+. This guide also gives
the specifications and related documentation for the DECserver 90L+.

Organization
This guide has five chapters and two appendices.
Chapter

Meaning

Provides an overview of the DECserver 90L+ including its
features and a quick start procedure.

Describes how to install the DECserver 90L+.

Describes how to operate the DECserver 90L+.

Describes how to manage the DECserver 90L+ locally or from
a remote device on the network.

Describes how to troubleshoot the DECserver 90L+.

Appendix A

Describes the physical dimensions; environmental, electrical,
and LAT specifications.

Appendix B

Provides a list of related documentation and how to order
information.

vii

Conventions
Convention

Meaning

italic

Indicates a new term or, in command syntax examples, italic words
represent elements of a command for which you supply a value. For
example:
-> service

Return

Key names appear in a box.

NOTE

Provides general information.

bold text

Bold text represents user input. For example:
-> SET Return

In a command line, characters in angle brackets <> represent elements
of a command for which you supply a value. For example:
-> <old_password>, <new_password>

[]

The characters in brackets [ ] are optional. For example:
D[ISCONNECT]

viii

1
Overview
This chapter describes the features of the DECserver 90L+ and provides a
summary of the installation procedure.

Features
The DECserver 90L+ contains the following features:
•

Easy user interface

•

Plug-and-go installation

•

Small in size

•

Rack mountable in DEChub 90
Ethernet backplane

•

Network management through
MOP and TSM (future release of
TSM)

•

Eight ports
– 1.2 K bits to 38.4 K bits per second
– 8-bit characters
– One stop bit
– No parity

•

Four LAT sessions per port

•

One outbound maintenance operations
protocol (MOP) session per port

•

Command line recall and editing

Dedicated service

•

On-Demand Loading Font Protocol

•

Preferred service

•

Enable/disable ports

•

Programmable prompt

•

Printer support, including queuing

•

LAT compatible, V5.0 or higher

•

"Send Break" out port

The DECserver 90L+ terminal server is an eight line terminal server that
supports terminals and printers. Each line or port can establish up to a
maximum of four LAT sessions and one MOP session at a time. DECserver 90L+
supports Digital’s Local Area Transport (LAT) protocol and is designed to work in
a ThinWire Ethernet Local Area Network (LAN), as shown in Figure 1–1.

Overview 1–1

Overview

Figure 1–1 Sample DECserver 90L+ Connection
Terminal

Terminal

Personal Computer

Terminal

Printer

Terminal

DECserver 90L+
Terminal Server

Computer 1

ThinWire

Ethernet

Computer 2

Computer 3

Computer N

LJ-01099-TI0

Quick Start
To install and begin using your DECserver 90L+ is simple. It does not require
any programming or other assistance from system management. After unpacking
the unit:
1. Plug the power supply in a working AC outlet and plug the power connector
from the power supply into your DECserver 90L+.
The green power LED turns on to indicate DC power is getting to the unit.
The green self-test LED turns on to indicate that the unit successfully
completed its internal self-test. The self-test takes approximately five seconds
to complete.
2. Connect the unit to a properly terminated ThinWire Ethernet.
The green network LED turns on to indicate a good connection.

1–2 Overview

Overview

3. Connect a working terminal to one of the terminal ports. Refer to Table 1–1
for supported terminal characteristics.
4. Turn the power on to the terminal and press Return twice to get the
DECserver 90L+ prompt (->).
Pressing Return twice causes the green activity LED to blink and
automatically sets the port’s baud rate.
5. Enter the name of the network node you want to connect to and press Return .
The DECserver 90L+ will display a string of dots ‘‘.....’’, one per second, until
the connection is made.
For more detailed information on installing and using the DECserver 90L+ refer
to Chapter 2, Installing the DECserver 90L+ and Chapter 3, Operating the
DECserver 90L+ of this manual.
Table 1–1 Supported Terminal Characteristics
Characteristic

Setting

Transmit speed

1.2K to 38.4K BPS

Receive speed

Receive = Transmit

Flow control

XON/XOFF or None

Data and parity

8 Bits, No Parity

Stop bits

Overview 1–3

Overview

Figure 1–2 shows the DECserver 90L+ and calls out its features.
Figure 1–2 DECserver 90L+
6

1
2
3

5
4
7
8

LJ-00072-TI0

1–4 Overview

Overview

Power Indicator - Turns on when +5 volts is supplied to the unit.

Self-Test OK Indicator - Turns on when the unit has successfully completed its
diagnostics.

Network OK Indicator - Turns on when the unit is connected to a properly
terminated network.

Activity Indicator - Turns on when data is being transmitted or received by any
of the ports.
Ethernet Address - Unique physical address of the unit.

Network Connector (BNC) - Connects unit to the network. Not used when the
unit is installed in the DEChub 90 Ethernet backplane.

Port Connector (MMJ) - Connect terminals and printers to the DECserver
90L+.
Power Connector - Provides +5 volts from the DECserver 90L+ power supply.
Not used when the unit is installed in the DEChub 90 Ethernet backplane.
Backplane Connector - Provides network and power connections to the
DECserver 90L+ when it is installed in the DEChub 90 Ethernet backplane.
Cover - Present on standalone units only. Covers the backplane connector and
mounting assembly.

Overview 1–5

2
Installing the DECserver 90L+
The DECserver 90L+ can be placed on a table, mounted to a wall, or installed in
the DEChub 90 Ethernet backplane. Refer to the section Standalone Installation
when installing the unit on a table or mounting it to a wall. Refer to the section
Backplane Installation when installing the unit in the DEChub 90 Ethernet
backplane.

Standalone Installation
To install the DECserver 90L+ as a standalone unit, perform the following
procedures and refer to Figure 2–1.

Mount DECserver 90L+.
Locate and mount the DECserver 90L+. For wall mounting, remove the back
cover on the unit and use the mounting holes on the cover as a template to locate
the mounting screws.

Installing the DECserver 90L+ 2–1

Installing the DECserver 90L+

Figure 2–1 DECserver 90L+ Standalone Installation
50 O hm
T er m i nat or
T -C onnec t or

International
Power Supply

North American
Power Supply

T er m i nal

LJ-00073-TI0A.DG

2–2 Installing the DECserver 90L+

Installing the DECserver 90L+

Remove Cover (if necessary).
To remove the back cover of the DECserver 90L+ unit (Figure 2–2):
1. Insert a small screwdriver into the top mounting hole in the cover.
2. Lift up on the latch.
3. While lifting up on the latch, pull the top of the cover away and down from
the unit.
Figure 2–2 Removing the Back Cover of the DECserver 90L+

LJ-00320-TI0

Installing the DECserver 90L+ 2–3

Installing the DECserver 90L+

Make Connections.
1. Plug the power supply into the DECserver 90L+.
2. Attach the Ethernet T-connector to the BNC connector on the DECserver
90L+. Make sure the Ethernet segment is properly terminated at each end.
3. Attach the power cord to the power supply, if needed.
4. Plug the power supply into a working AC outlet.
5. The following indicators should be lit: power, self-test ok, and network.
Within five seconds, the self-test ok indicator should be lit, followed by the
network indicator.

Verify Ports.
Verify the operation of each port by connecting a terminal to the port. Refer to
Table 1–1 for supported terminal characteristics. Press Return twice (autobaud)
to set the operating speed of the port. While watching the Activity LED, type a
character on the terminal. The LED should turn on and off, indicating activity on
the port. Perform this procedure for each port.

Verify Network.
Verify the operation of the network. Enter SHOW S at the prompt (->) and press
Return . The server characteristics screen will verify if the network is "OK" or
"Failed". If "Failed", make sure the server is on a properly configured network.
For more information on the SHOW S command, refer to Chapter 4.

2–4 Installing the DECserver 90L+

Installing the DECserver 90L+

Start Terminal Session.
1. Connect terminals to ports as needed.
2. To start a terminal session using a terminal connected to one of the ports:
a. With the terminal turned on, press Return twice. This sets the baud rate
of the port to that of the terminal.
b. At the prompt (->), enter a service name and press Return .
The DECserver 90L+ responds by displaying a string of dots "......" while
connecting to the selected service. Once the connection is established,
your terminal will display the system-dependent login message or prompt.
Note
The DECserver 90L+ can take up to one minute when connecting to a
node for the first time.

For more information on using the DECserver 90L+, refer to Chapter 3 in this
manual.

Backplane Installation
To install the DECserver 90L+ in the DEChub 90 Ethernet backplane, perform
the following procedures and refer to Figure 2–3.

Remove Cover (if necessary).
If the unit to be installed in the backplane has a cover on the back of the unit,
remove the cover (Figure 2–2).
To remove the back cover on the DECserver 90L+ unit:
1. Insert a small screwdriver into the top mounting hole in the cover.
2. Lift up on the latch.
3. While lifting up on the latch, pull the top of the cover away and down from
the unit.

Installing the DECserver 90L+ 2–5

Installing the DECserver 90L+

Mount DECserver 90L+.
1. Place the lower mounting tab, located on the back of the DECserver 90L+, in
the appropriate mounting slot on the backplane.
Note
The DECserver 90L+ can be installed in an operating DEChub 90
Ethernet backplane (hot-swap).

2. Rock the unit into place. An audible click is heard when the unit is securely
latched in place.
3. With the power applied to the backplane, the following indicators on the
DECserver 90L+ should be lit: power, self-test ok, and network. Within
five seconds, the self-test ok indicator should be lit, followed by the network
indicator.

2–6 Installing the DECserver 90L+

Installing the DECserver 90L+

Figure 2–3 DECserver 90L+ Backplane Installation

LJ-00074-TI0

Installing the DECserver 90L+ 2–7

Installing the DECserver 90L+

2–8 Installing the DECserver 90L+

Installing the DECserver 90L+

Start Terminal Session.
1. Connect terminals to ports as needed.
2. To start a terminal session using a terminal connected to one of the ports:
a. With the terminal turned on, press Return twice. This sets the baud rate
of the port to that of the terminal.
b. At the prompt (->), enter a service name and press Return .
The DECserver 90L+ responds by displaying a string of dots "......" while
connecting to the selected service. Once the connection is established, the
system-dependent login message or prompt will appear.
Note
The DECserver 90L+ can take up to one minute when connecting to a
node for the first time.

For more information on using the DECserver 90L+, refer to Chapter 3 in this
manual.

Installing the DECserver 90L+ 2–9

3
Operating the DECserver 90L+
Using the DECserver 90L+ terminal server is as easy as turning on your
terminal, pressing Return twice, and entering the name of the service (nodename)
you want to connect to at the -> prompt. You can also set a port for use by a
printer.
This chapter describes how to operate the DECserver 90L+. This chapter
describes how to start, interrupt, resume, cycle forward or backward, and end
a terminal session. It also describes how to operate the DECserver 90L+ as a
console requester and as a console server using Maintenance Operations Protocol
(MOP).
Note
LAT Version 5.0 or higher must be installed and running on a host
system before you can use the DECserver 90L+. If you cannot connect
to a selected system and you are not sure if LAT Version 5.0 or higher is
installed and running, see your system manager for help.

Using a Terminal or Personal Computer
This section explains how to use the DECserver 90L+ with a terminal or personal
computer (PC) running terminal emulation software.

Establishing a Terminal Session
To establish a terminal session:
1. Turn your terminal on or start the terminal emulation software on your PC.
2. Press the Return key twice, you will see the DECserver 90L+ prompt:
->

Operating the DECserver 90L+ 3–1

Operating the DECserver 90L+

3. At the prompt (->), type your service name and press Return . The
DECserver 90L+ indicates that it is attempting to connect by displaying
a string of dots "...." on the screen.
The following example shows the connection to a service named RED.
-> RED

Return

................
%DS90L-108, RED session 1 established
Welcome to MYNODE running VMS 5.4
Username:
Note
The DECserver 90L+ does not require the configuration of group codes.
The first time it connects to a service, it learns the service name. This
can take up to 60 seconds.

The terminal session is established and control is passed to the specified host. If
you do not know the services offered by your host(s), ask your system manager.
When a terminal session is established, most systems start some type of log
in sequence, such as prompting you for username and password. Refer to the
documentation for your specific system for information about starting a session.

Ending a Terminal Session
A terminal session is ended by logging off or disconnecting from the system
on which your terminal session was running. Logging off a system ends your
terminal session and returns you to the DECserver 90L+ prompt. The following
example shows what happens when a user logs off the service RED.
$ LO

Return

USER logged out at 01-JAN-1992 16:55:00.00
-> %DS90L-107, RED session 1 disconnected
->

3–2 Operating the DECserver 90L+

Operating the DECserver 90L+

Last Number Redial
Last number redial allows a port to connect to the last service accessed without
entering the service or node name. This is done by entering the CONNECT
command C[ONNECT] at the DECserver 90L+ prompt and pressing Return . The
following example shows how to use the last number redial feature to reconnect
to service RED.
$ LO

Return

USER logged out at 01-JAN-1992 16:55:00.00
-> C

Return

%DS90L-108, RED session 1 established
Welcome to MYNODE running VMS 5.4
Username:
Note
The use of a preferred service overrides the last number redial feature.

Interrupting a Terminal Session
You can interrupt a terminal session and return to the DECserver 90L+ prompt
by pressing the Break key on the terminal. When you press the Break key, the
session is interrupted, not ended, and the DECserver 90L+ prompt appears as
follows:
->

Operating the DECserver 90L+ 3–3

Operating the DECserver 90L+

At this point you can issue a SHOW or SET command, resume the interrupted
session, cycle forward or backward to other sessions, or end the session. The
following is an example of displaying the sessions active for port 1. The asterisk
next to the service name of session 1 shows it as the default session to which you
are returned.
-> SHOW

Return

3–4 Operating the DECserver 90L+

GREEN
YOURNODE
LTA789

BLUE
YOURNODE
LTA790

Operating the DECserver 90L+

Resuming an Interrupted Terminal Session
To resume the current interrupted terminal session, type the connect command
> or RESU[ME] at the DECserver 90L+ prompt. To resume a specific session,
type the command and specify the session number. In the case of a MOP session,
type M in place of the session number. The following is an example of resuming
terminal session 2 for a port.
-> > 2

Return

-> %DS90L-112, YELLOW session 2 resumed
When you resume an interrupted session, control is returned to the point at
which the session was interrupted.

Cycle Forward from an Interrupted Terminal Session
After you interrupt a terminal session, you can cycle forward to the next session.
This is done by entering the FORWARD command F[ORWARD] at the DECserver
90L+ prompt and pressing Return . The following is an example of having
interrupted session 2 and forwarding to session 3.
-> F

Return

-> %DS90L-112, GREEN session 3 resumed

Cycle Backward from an Interrupted Terminal Session
After you interrupt a terminal session, you can cycle backward to the session
previous to the session that was interrupted. This is done by entering the
BACKWARD command B[ACKWARD] at the DECserver 90L+ prompt and
pressing Return . The following is an example of having interrupted session 2 and
cycling backward to session 1.
-> B

Return

-> %DS90L-112, RED session 1 resumed
Note
There are no definable switch characters to immediately go forward and
backward between sessions as in other Digital terminal servers.
The FORWARD and BACKWARD commands are circular, that is they
"loop" or "cycle" through the number of sessions established.

Operating the DECserver 90L+ 3–5

Operating the DECserver 90L+

Disconnecting an Interrupted Terminal Session
After you interrupt a terminal session, you might change your mind and decide
not to resume the session. In this case, you can disconnect the session by typing
the disconnect symbol < or D[ISCONNECT] at the DECserver 90L+ prompt. To
disconnect a specific session, type the command and specify the session number.
In the case of a MOP session, type M in place of the session number. The
following is an example of disconnecting terminal session 4 for a port.
-> < 4

Return

-> %DS90L-112, BLUE session 4 disconnected
When you disconnect an interrupted session, your session is stopped and the
DECserver 90L+ prompt appears on your terminal.
Note
Entering the DISCONNECT command when there is no interrupted
session to resume causes the port to enter its power-up state
(non-autobaud state).

Using MOP Console Carrier
Maintenance Operations Protocol (MOP) is a maintenance protocol specified in
the Digital Network Architecture (DNA) that is used to implement the remote
console facility and to perform remote management and loopback tests.
The DECserver 90L+ supports the remote console facility also known as console
carrier. Within console carrier there are two components: console requester, and
console server.

3–6 Operating the DECserver 90L+

Operating the DECserver 90L+

Operating as a Console Requester
The DECserver 90L+ can operate as a console requester. As a console requester,
the DECserver 90L+ establishes a MOP console carrier session with another
console server on the same network. This is done by using the M[OP] command
and the network device’s Ethernet address. The DECserver 90L+ also supports
a verification code if required by the console server. The following is an example
of establishing a connection from a DECserver 90L+ to another DECserver 90L+.
The Ethernet address of the device is 08-00-2B-19-8B-AF.
MYSERVER> MOP 08-00-2B-19-8B-AF

Return

-> %DS90L-113, Console connected (press Ctrl/D when finished)
-> (prompt from connected device)
Note
The RESUME and DISCONNECT commands can be used for a MOP
session by typing RESU[ME] M or D[ISCONNECT] M.
If a MOP session is active, use of the F[ORWARD] and B[ACKWARD]
commands will cycle through the MOP session.

Operating as a Console Server
The DECserver 90L+ can also operate as a console server. A console server allows
another requester to connect to its console port. This function is used for remote
management of the DECserver 90L+. The following shows how a VMS system
can establish a console carrier session with a DECserver 90L+. The Ethernet
address of the DECserver 90L+ in this example is 08-00-2B-08-32-2B and SVA-0
identifies the VMS system’s Ethernet circuit name.
$ MCR NCP
$ NCP> CONNECT VIA SVA-0 PHY ADDR 08-00-2B-08-32-2B
Console connected (press CTRL/D when finished)
-> (DECserver 90L+ PROMPT)

Using a Printer
Any of the ports on your DECserver 90L+ can be set for use with a printer. This
is usually done by the person responsible for managing the DECserver 90L+.
Chapter 4 contains information on how to set a port for use with a printer.

Operating the DECserver 90L+ 3–7

Operating the DECserver 90L+

DECserver 90L+ Commands
The commands used to establish and control a terminal session and to manage
the DECserver 90L+ are described in Table 3–1. Chapter 4 provides a detailed
description of the SET and SHOW commands and how they are used to manage
the DECserver 90L+.
Table 3–1 DECserver 90L+ User Commands
Symbol/Command

Function

service

At the prompt (->), enter the name of the service
(maximum of 16 characters) with which you want
to establish a terminal session.

service [node [port]]

Establishes a terminal session with the service,
node (maximum of 16 characters), and port
(maximum of 8 characters) specified. The node
and port are optional.

C[ONNECT] 1 service [node [port]]

Establishes a terminal session with the service,
node, and port specified. The node and port are
optional. This command should be used to establish
a terminal session when a service name conflicts
with one of the DECserver 90L+ commands.

M[OP]1 Ethernet address [verification code]

Establishes a MOP session with the device owning
the specified Ethernet address. The Ethernet
address must be entered as 6 hex bytes, separated
by hyphens. The verification code is an optional
field. It may be used as a password by the device
you are trying to establish a MOP session with. If
used, the verification code must be entered as 8 hex
bytes, separated by hyphens.

Break

Interrupts a terminal session.

Resumes last interrupted session.

> n

Resumes session specified by n.
n={1,2,3,4,M2 }.

RESU[ME]1
1

Resumes last interrupted session.

RESU[ME] n

Resumes session specified by n. n={1,2,3,4,M2 }.

F[ORWARD]1

Cycles forward to the next session.

The characters in brackets [ ] are optional and do not need to be entered for the DECserver 90L+ to
recognize the command.
2

M represents a MOP session.

(continued on next page)

3–8 Operating the DECserver 90L+

Operating the DECserver 90L+

Table 3–1 (Cont.) DECserver 90L+ User Commands
Symbol/Command
1

Function

B[ACKWARD]

Cycles backward to the last session.

Disconnects an interrupted terminal session or
disconnects the port, if no sessions are active.
Disconnecting the port returns the port to the
power-up state (non-autobaud).

< n

Disconnects an interrupted terminal session
specified by n. n={1,2,3,4,M2 }.

D[ISCONNECT]1

Disconnects an interrupted terminal session or
disconnect the port. Disconnecting the port returns
the port to the power-up state (non-autobaud).

D[ISCONNECT]1 n

Disconnects an interrupted terminal session
specified by n. n={1,2,3,4,M2 }.

SE[T]1

Sets port or server parameters.

SH[OW]

Shows port or server parameters.

RESE[T]1

Resets port or server parameters to power-up state.

? or H[ELP]

Lists DECserver 90L+ commands.

The characters in brackets [ ] are optional and do not need to be entered for the DECserver 90L+ to
recognize the command.
2

M represents a MOP session.

Operating the DECserver 90L+ 3–9

Operating the DECserver 90L+

DECserver 90L+ Information and Error Codes
The DECserver 90L+ interface provides you with an informational message or an
error message about any commands issued to the unit. Each message is made up
of a message number and the message. Table 3–2 lists each message number and
its message.
Table 3–2 DECserver 90L+ Information and Error Codes
Message
Number

Message

%DS90L–100

Parameters Have Been Changed

%DS90L–101

Parameters Have Not Been Changed

%DS90L–102

Authorized Mode Cleared

%DS90L–103

Power Down DS90L within 1 minute to Enable Authorized Mode

%DS90L–104

Power Down DS90L within 1 minute to Clear Authorized Mode

%DS90L–105

Manager Mode Enabled

%DS90L–106

Manager Mode Disabled

%DS90L–107

MOP session disconnected

%DS90L–107

<Service Name> session <session number> disconnected

%DS90L–108

<Service Name> session <session number> established

%DS90L–109

Password Changed

%DS90L–110

Port Has Been Reset

%DS90L–111

Server Has Been Reset

%DS90L–112

MOP session resumed

%DS90L–112

<Service Name> session <session number> resumed

%DS90L–113

Console connected (press Ctrl/D when finished)

%DS90L–114

Port Enabled

%DS90L–115

Port Disabled

%DS90L–116

Autobaud/Default Characteristics Enabled

%DS90L–117

Autobaud/Default Characteristics Disabled

%DS90L–118

Dedicated/Preferred Service Set

%DS90L–119

Dedicated/Preferred Service Cleared

%DS90L–120

On-Demand Loading Enabled
(continued on next page)

3–10 Operating the DECserver 90L+

Operating the DECserver 90L+

Table 3–2 (Cont.) DECserver 90L+ Information and Error Codes
Message
Number

Message

%DS90L–121

On-Demand Loading Disabled

%DS90L–200

User requested halt

%DS90L–204

This Port is not in Manager Mode

%DS90L–205

Authorized Mode not Enabled

%DS90L–206

Authorized Mode is Already Enabled

%DS90L–207

Another Port is in Manager Mode

%DS90L–208

System Shutdown in Progress

%DS90L–209

Service In Use

%DS90L–210

Service Unavailable

%DS90L–211

Service Disabled

%DS90L–212

Entry is Not in the Queue

%DS90L–213

Immediate Access Rejected

%DS90L–214

Access Denied

%DS90L–215

No Session Active

%DS90L–216

No Default Session Active

%DS90L–217

Console response size too large, data loss may occur

%DS90L–300

Host Stopped Responding

%DS90L–302

Insufficient Information

%DS90L–303

Insufficient Host Resources to Satisfy Request

%DS90L–304

Reason Unknown

%DS90L–305

Maximum Session Limit Exists

%DS90L–306

Invalid Syntax

%DS90L–307

Invalid LAT Name

%DS90L–308

Invalid Ethernet Address

%DS90L–309

Invalid Password

%DS90L–310

Data Overflow
(continued on next page)

Operating the DECserver 90L+ 3–11

Operating the DECserver 90L+

Table 3–2 (Cont.) DECserver 90L+ Information and Error Codes
Message
Number

Message

%DS90L–311

Illegal message

%DS90L–312

Protocol Error—Server Circuit Timer is Out of Range

%DS90L–313

Protocol Error—Number of Virtual Circuits Exceeded

%DS90L–314

Illegal Port Name

%DS90L–315

Port Name is Used by Another Port

%DS90L–316

Port In Use

%DS90L–317

Cannot Change Device Type While Printer is Busy

%DS90L–318

Invalid Character in Password

%DS90L–319

Password Not Verified

%DS90L–320

Cannot Perform Operation While Changing Authorized Mode

%DS90L–321

Connection Not Established—Network Not Connected

%DS90L–322

Disconnected—Network Not Connected

%DS90L–323

Protocol Error—Invalid Slot Received

%DS90L–324

Protocol Error—Invalid Service Class

%DS90L–326

No Such Service

%DS90L–327

Service is Not Offered by Requested Port

%DS90L–328

Port Name is Unknown

%DS90L–330

Password Length Exceeds 8 Characters

%DS90L–331

Invalid Port Speed

%DS90L–332

Illegal Server Name

%DS90L–333

Password Required

%DS90L–334

Cannot Use Default Port for Console

%DS90L–335

Cannot Put Subject Port into Test Mode

%DS90L–336

Maximum Circuits per Box Reached

%DS90L–337

Illegal Prompt

%DS90L–338

Console carrier protocol not available

%DS90L–339

Console carrier protocol already in use

%DS90L–340

Cannot Set Dedicated Service on Subject Port
(continued on next page)

3–12 Operating the DECserver 90L+

Operating the DECserver 90L+

Table 3–2 (Cont.) DECserver 90L+ Information and Error Codes
Message
Number

Message

%DS90L–341

Cannot Perform on Subject Port

%DS90L–342

Target does not respond

%DS90L–343

Cannot Set Dedicated/Preferred Service for Printer

Operating the DECserver 90L+ 3–13

4
Managing the DECserver 90L+
The DECserver 90L+ requires very little in the way of management. It does
not use or require the configuration of group codes. It requires that service
ad timers be set to 60 seconds (the default) or less. Reducing the interval for
service ad time improves the response of the DECserver 90L+ when making new
connections. The DECserver 90L+ can work with systems whose service ad timer
interval is greater than 60 seconds if:
•

A response is received from a node’s LAT software. (LAT Protocol Version 5.2
or later supports the service responder feature. This is a standard with VMS
Version 5.5 or later and optional with VMS Version 5.4-2 or 5.4-3.)

•

The system’s service ad happens to be received within 60 seconds.

The time required for the DECserver 90L+ to establish a connection can be
reduced to a minimum of two seconds for any ‘‘service’’ when any node in your
network has enabled the service responder feature of its LAT software (LAT
Protocol Version 5.2 or later). See your system manager for more information.
The DECserver 90L+ can be managed locally or from a remote device on the
network. Local management is done using a terminal connected to one of the
ports on the DECserver 90L+. Remote management is done using maintenance
operations protocol (MOP) console carrier. This can be done from another
DECserver 90L+ or another remote device. In addition, the DECserver 90L+ can
be used to manage other members of the DEChub 90 family.

Managing the DECserver 90L+ 4–1

Managing the DECserver 90L+

Managing the DECserver 90L+ includes:
•

Examining port and server parameters and network counters

•

Setting port parameters

•

Setting server name, prompt, and zeroing counters

•

Security
–

Setting and clearing authorized mode

–

Enabling and disabling manager mode

–

Changing the password

Local Management
Local management of the DECserver 90L+ is performed with a terminal
connected to one of its eight ports and using the SET, SHOW, and RESET
commands of the DECserver 90L+.

Remote Management
The DECserver 90L+ can be managed from a remote node on the network using
MOP console carrier. Once the MOP console carrier session is established, the
SET and SHOW commands are used to examine and set the various port and
server parameters. The RESET command is used to reset ports and the server to
the power-up state.

Accessing MOP from VMS
On a VMS operating system, the MOP console carrier is included as part of the
network control program (NCP) facility, which requires a DECnet license.
You do not need increased user privileges to use NCP to establish a console
carrier session. To establish a console carrier session, you must know the:
•

Ethernet address of the DECserver 90L+ to be managed

•

Ethernet name of the circuit that contains the DECserver 90L+

The Ethernet address should be on the label on the DECserver 90L+ front panel.
The circuit name is needed because a VMS operating system may have more
than one Ethernet interface. Table 4–1 is a partial list of Ethernet circuit names,
based on system type.

4–2 Managing the DECserver 90L+

Managing the DECserver 90L+

Table 4–1 Ethernet Circuit Names for VMS-Based Systems
System

Ethernet Circuit Name

VAX 6000 and VAX 9000 XMI computers

MNA-0

BI-based systems (VAX 6300 and VAX 6400 computers)

BNA-0

VAX 4000 computers

ISA-0

MicroVAX/3600/3900 computers

QNA-0

VAXstation 2000 and 3000 computers

SVA-0

VAX–11/780 and VAX–11/785 computers (UNIBUS)

UNA-0

The following VMS command is used to establish a console carrier session from
a VAXstation 3100 system to a DECserver 90L+. The Ethernet address of the
DECserver 90L+ in this example is 08-00-2B-08-32-2B, and SVA-0 identifies the
system’s Ethernet circuit name.
$ MCR NCP
$ NCP> CONNECT VIA SVA-0 PHY ADDR 08-00-2B-08-32-2B
Console connected (press CTRL/D when finished)
-> (DECserver 90L+ PROMPT)
Accessing a DECserver 90L+ Repeatedly
If you need to access a specific DECserver 90L+ repeatedly, you can enter the
Ethernet address for it in the NCP database. This is usually done by choosing an
arbitrary address in area 13. DECserver names in the NCP database can have
a maximum of six characters. The user must have privileges to modify the NCP
database.
For example, if you define your DECserver 90L+ as DS90L on address 13.87 and
then access it from a VAX 6400 (Ethernet circuit name BNA-0), you would use
the following commands:
$
NCP> DEFINE NODE DS90L ADDRESS 13.87 HARDWARE 08-00-2B-08-32-2B SERVICE CIR BNA-0
NCP> SET NODE DS90L ALL
To access the DECserver 90L+, type the following:
$ NCP CONNECT NODE DS90L

Managing the DECserver 90L+ 4–3

Managing the DECserver 90L+

Accessing MOP from ULTRIX
On ULTRIX operating systems, the console carrier is a separate utility included
as part of the MOP option. The option is part of the regular distribution but
is not selected by default and is not included in the basic installation. You can
install MOP from the original distribution media by using the setld utility. You
must have superuser privileges to invoke console carrier.
After the MOP option is installed, each DECserver 90L+ to be managed must be
given a name and a dummy node number, using the addnode utility. For example:
# addnode 13.1 DS90L
After the name and node number is assigned, you can establish the link at any
time by using the ccr command:
# ccr -n DS90L -h 08-00-2B-08-32-2B -c sva-0
In this example, the -h qualifier is followed by the station address of the
DECserver 90L+ unit to be attached. The -c qualifier is followed by the name
of the Ethernet circuit to use for the connection. Table 4–2 is a partial list of
Ethernet circuit names, based on system type.
Table 4–2 Ethernet Circuit Names for ULTRIX-Based Systems
System

Ethernet Circuit Name

VAX 6000 and VAX 9000 XMI computers

mna-0

BI-based systems (VAX 6300 and VAX 6400 computers)

bna-0

VAX 4000 computers

isa-0

MicroVAX/3600/3900 computers

qna-0

VAXstation 2000 and 3000 computers

sva-0

DECstation 3000 and 5000 computers

sva-0

VAX–11/780 and VAX–11/785 computers (UNIBUS)

una-0

4–4 Managing the DECserver 90L+

Managing the DECserver 90L+

Security
Security for the DECserver 90L+ is provided by a password protected
management mode. This mode of operation is called authorized mode and
can be set and cleared as required. When authorized mode is set, the following
conditions exist:
•

Users can set the parameters of only their own port and show the server’s
parameters.

•

Manager mode must be enabled (password required) to set server parameters
or port parameters on a port other than the one you are connected to.

•

Manager mode must be enabled to change the password.

When the DECserver 90L+ is first installed, authorized mode is not set and any
port can be used to set any other port’s parameters and the server’s parameters.
To set authorized mode requires physical access to the unit and entering and
verifying a password. The unit’s power must be cycled (turned off and then on)
within one minute of entering the password for authorized mode to be set. The
cycling of the power verifies that you have access to the unit and causes the
password to be saved in the unit’s non-volatile RAM (NVRAM).
Note
The self-test LED will flash during the minute that the user has to power
cycle the DECserver 90L+ in order for the change to authorized mode to
take effect. This helps identify the unit when it is installed in a DEChub
backplane.

Managing the DECserver 90L+ 4–5

Managing the DECserver 90L+

Management Commands
The commands used to manage the DECserver 90L+ are the SET, SHOW, and
RESET commands. The SET and SHOW commands can be used from the menu
to show or set parameters. A command line mode is available for use by network
management software or by users that want to bypass the menu interface.
Refer to the Command Line section at the end of this chapter, for more detailed
information on command line mode.
The following sections show how to enter the SET, SHOW, and RESET commands
using the menu and the command line.

SET Command
The SET command allows you to set port or server parameters, zero network
counters, and enable and use the DECserver 90L+ security features.
Setting Port Parameters
The following port parameters can be set for each port:
•

Port name

•

Port speed (baud rate)

•

Input flow control

•

Output flow control

•

Device type (terminal or printer)

•

Local or remote break

•

Remote modify

•

Test (loopback) operation

Table 4–3 describes each of the port parameters that can be set.
Port parameters can be set from the menu or by a command line entered at the
prompt. If authorized mode is set and the port parameters to be set are for a
port other than the one you are connected to, then you must first enable manager
mode.

4–6 Managing the DECserver 90L+

Managing the DECserver 90L+

Table 4–3 Port Parameters
Field

Description

Port Name

Maximum of six characters. You can use the hyphen (-), underscore (_),
dollar sign ($), or alpha-numeric characters.

Speed

Sets the receive/transmit speed of the port. When a terminal is
connected to a port, the DECserver 90L+ automatically sets the speed
through autobaud. For use with printers or other such devices the
speed can be set to one of six values.
1 = 38400 baud
2 = 19200 baud
3 = 9600 baud
4 = 4800 baud
5 = 2400 baud
6 = 1200 baud

Input Control

Enables and disables input flow control (XON/XOFF).
E = Enable
D = Disable
C = Clear (send XON)

Output Control

Enables and disables output flow control (XON/XOFF).
E = Enable
D = Disable
C = Clear (send XON)

Terminal
/Printer

Selects the type of device connected to the port. The port that issues
the SET command cannot set its device type to printer.
T = Terminal
P = Printer

Break

Determines whether a break is acknowledged locally or remotely.
L = Local
R = Remote

Remote Modify

Enables and disables modification of the port’s characteristics by the
host system.
E = Enable
D = Disable

Test

Places the selected port into loopback mode. Loopback mode can be
used to verify that a port is receiving and sending characters. A port
cannot put itself in loopback mode.
Y = Yes (loopback mode)
N = No

Managing the DECserver 90L+ 4–7

Managing the DECserver 90L+

Setting Port Parameters from the Menu
To set port parameters from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
in the menu indicates the port to which you are connected.
The following example shows how to set port 8 for use with a printer (user
entries are bolded). The following port parameters are set in this example.
Port name: PRINT
Speed: 9600
Input control: Remains unchanged
Output control: Remains unchanged
Terminal/Printer: Printer
Break: Remote
Remote modify: Remains unchanged
Test: Remains unchanged
2. Select the port by entering a number (1 through 8) and press Return .
3. Set the parameters in response to the prompts. The asterisk (*) indicates the
current setting of the parameter for the selected port. The setting of each
parameter is terminated with a Return . Entering a Return with no input for
a parameter leaves the field unchanged. If an incorrect entry is made, the
DECserver 90L+ signals the error and waits for a correct entry.
Setting Port Parameters By Command Line
Command line mode allows a port’s parameters to be set with a single entry. If
you do not want to change a parameter, an entry in that field is not required.
The format for the command line is as follows:
-> SET <port>,<name>,<speed>,<IFC>,<OFC>,<device>,<break>,<rem_mod>,<test>

4–8 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to set port parameters from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–9

Managing the DECserver 90L+

The following example shows how to set port 8 for use with a printer (user entries
are bolded). The following port parameters are set in this example.
Port name: PRINT
Speed: 9600
Input flow: Remains unchanged
Output flow: Remains unchanged
Device type: Printer
Break: Remote
Remote modify: Remains unchanged
Test: Remains unchanged
-> SET 8,PRINT,9600,,,P,R,,

Return

-> %DS90L-100, Parameters Have Been Changed
->
Setting and Clearing Authorized Operation
The SET command is used to set and clear authorized operation. To set
authorized operation, you must have physical access to the unit because the
unit’s power must be cycled.
Setting the Authorized Operation by Menu
To set the authorized operation from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Authorized by entering AUTH and press Return .
3. Select Set by entering S and press Return .
4. Enter the new password. The password is not echoed.
5. Enter the password again to verify. The verify password is not echoed.
Setting the Authorized Operation by Command Line
The command line for setting authorized mode operation is:
-> SET AUTH,S,<password>

Return

4–10 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to set the authorized operation from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–11

Managing the DECserver 90L+

Clear Authorized Mode by Menu
Clearing authorized mode disables the security on the DECserver 90L+. To
clear authorized mode, your port must be in manager mode or you must have
physical access to the unit. Physical access to the unit is required when the unit’s
password is not known.
To clear authorized mode from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Authorized by entering AUTH and press Return .
3. Select Clear by entering C and press Return .
4. If the port you are connected to is not in manager mode, the unit’s power will
have to be cycled off and then on, within a one minute timeframe.
Clear Authorized Mode by Command Line
The command line for clearing authorized mode is:
-> SET AUTH,C

Return

4–12 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to clear the authorized mode from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–13

Managing the DECserver 90L+

Enabling and Disabling AutoConfigure
Terminal ports on the DECserver 90L+ are set from the factory to support
autobaud and AutoConfigure for flow control, break mode, and remote
modification. While these parameters can be changed, only the port name for
a terminal is saved in NVRAM. The break mode and remote modification values
are port login volatile. Flow control checking is automatically enabled on session
logout. The AutoConfigure feature can be disabled so that all values for these
parameters will be stored in NVRAM. Personal computer users would want to
disable the AutoConfigure and flow control checking to transfer binary files.
The port AutoConfigure state is shown in a show port screen.
Note
All port parameters for printers are always saved in NVRAM.

Enable AutoConfigure by Menu
To enable AutoConfigure from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select AutoConfigure by entering AUTO and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Enable by entering E and press Return .
Enable AutoConfigure by Command Line
The command line for enabling AutoConfigure is:
-> SET AUTO,<port>,E

Return

4–14 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to enable AutoConfigure from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–15

Managing the DECserver 90L+

Disable AutoConfigure by Menu
To disable AutoConfigure from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select AutoConfigure by entering AUTO and press Return .
3. Select the port by entering a number (1 through 8) and press Return .
4. Select Disable by entering D and press Return .
Disable AutoConfigure by Command Line
The command line for disabling AutoConfigure is:
-> SET AUTO,<port>,D

Return

4–16 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable AutoConfigure from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–17

Managing the DECserver 90L+

Enabling and Disabling Dedicated Service
The SET command is used to enable and disable dedicated service for a port.
Dedicated service allows a system manager to create a captive account, which
includes the option of defining a specific service, node, and port. This feature is
useful in situations where it is best for the user to have direct access to a specific
service, for example, shipping and receiving areas, clerical areas, and so on.
If dedicated service has been enabled for a port, the user of that particular port
will not see the DECserver 90L+ prompt or user interface. When the user types
Return (after the autobaud sequence), the DECserver 90L+ will immediately
attempt to connect to the service chosen previously as the dedicated service.
Breaking to the DECserver 90L+ user interface is not allowed on a dedicated
service port.
If a dedicated service has been enabled, it will be listed in a show port screen
with the other port parameters.
Enable Dedicated Service by Menu
To enable dedicated service from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Dedicated Service by entering D and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Enable by entering E and press Return .
5. Set the parameters in response to the prompts. The setting of each parameter
is terminated with a Return . Entering a Return with no input terminates the
command. If an incorrect entry is made, the DECserver 90L+ aborts the
command sequence.
Enable Dedicated Service by Command Line
The command line for enabling dedicated service is:
-> SET D,<port>,E,<service>[,<node>[,<port>]]

4–18 Managing the DECserver 90L+

Return

Managing the DECserver 90L+

The following example shows how to enable dedicated service from the menu.
-> SET

Return

|Node
|
|VAX1

|Port
|
|OSF

-> %DS90L-118, Dedicated/Preferred Service Set
->

Managing the DECserver 90L+ 4–19

Managing the DECserver 90L+

Disable Dedicated Service by Menu
To disable dedicated service from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Dedicated Service by entering D and press Return .
3. Select the port by entering a number (1 through 8) and press Return .
4. Select Disable by entering D and press Return .
Disable Dedicated Service by Command Line
The command line for disabling dedicated service is:
-> SET D,<port>,D

Return

4–20 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable dedicated service from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–21

Managing the DECserver 90L+

Enabling and Disabling Manager Mode
Manager mode is used to modify server characteristics as well as characteristics
of other ports. The SET command invokes Manager mode. The DECserver 90L+
password is required to invoke manager mode. Only one port can be in Manager
mode at a time.
Manager mode can be explicitly disabled using the SET command. In addition,
it is implicitly disabled either by powering down the terminal server or the
terminal, or by disconnecting the terminal from the server (long space disconnect).
Enable Manager Mode by Menu
To enable manager mode from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Manager by entering M and press Return .
3. Select Enable by entering E and press Return .
4. Enter password. The password is not echoed.
Enable Manager Mode by Command Line
The command line for enabling manager mode is:
-> SET M,E,<password>

Return

Note
The password is echoed when using command line entry.

4–22 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to enable manager mode from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–23

Managing the DECserver 90L+

Disable Manager Mode by Menu
To disable manager mode operation for a port, you must be attached to the port
and use the SET command.
To disable manager mode from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Manager by entering M and press Return .
3. Select Disable by entering D and press Return .
Disable Manager Mode by Command Line
The command line for disabling manager mode is:
-> SET M,D

Return

4–24 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable manager mode from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–25

Managing the DECserver 90L+

Enabling and Disabling On-Demand Loading
The On-Demand Loading option allows on-demand loading of fonts, composed of
a large number of characters, for Asian terminals. The default for the option is
disabled. When on-demand loading is enabled, the XON/XOFF processing and
the detection of break characters can be affected.
The port on-demand loading state is shown in a show port screen.
Note
If an attention slot arrives for the session that contains font data and
on-demand loading is not enabled, the slot will be considered illegal and
the circuit will be stopped.

Enable On-Demand Loading by Menu
To enable On-Demand Loading from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select On-Demand Loading by entering O and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Enable by entering E and press Return .
Enable On-Demand Loading by Command Line
The command line for enabling On-Demand Loading is:
-> SET O,<port>,E

Return

4–26 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to enable On-Demand Loading from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–27

Managing the DECserver 90L+

Disable On-Demand Loading by Menu
To disable On-Demand Loading from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select On-Demand Loading by entering O and press Return .
3. Select the port by entering a number (1 through 8) and press Return .
4. Select Disable by entering D and press Return .
Disable On-Demand Loading by Command Line
The command line for disabling On-Demand Loading is:
-> SET O,<port>,D

Return

4–28 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable On-Demand Loading from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–29

Managing the DECserver 90L+

Changing Password by Menu
The SET command is used to change the password of the DECserver 90L+. The
password can be a maximum of eight characters. To change the password, the
port you are using must be in manager mode.
To change the password interactively:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select password by entering PA and press Return .
3. Enter the old password. The old, new, and verify password entries are not
echoed by the DECserver 90L+.
4. Enter the new password.
5. Enter the new password again to verify it.
Changing Password by Command Line
The command line for changing the password is:
-> SET PA,<old_password>,<new_password>

Return

Note
The old and new passwords are echoed when using the command line
entry.

4–30 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to set the password from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–31

Managing the DECserver 90L+

Enabling and Disabling Ports
The SET command is used to enable and disable a port from operation. If the
system manager wants to disable a user’s port for security reasons, it can be done
through software using the command line mode.
The factory default is that all ports are enabled. Enabled port status will be
either OFF, LOCAL, or CONN. A disabled port status will be DIS. The port
status is shown in a show port screen.
Enable a Port by Menu
To enable a port from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Port by entering PO and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Enable by entering E and press Return .
Enable a Port by Command Line
The command line for enabling a port is:
-> SET PO,<port>,E

Return

4–32 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to enable a port from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–33

Managing the DECserver 90L+

Disable a Port by Menu
To disable a port from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Port by entering PO and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Disable by entering D and press Return .
Disable a Port by Command Line
The command line for disabling a port is:
-> SET PO,<port>,D

Return

4–34 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable a port from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–35

Managing the DECserver 90L+

Enabling and Disabling Preferred Service
The SET command is used to enable and disable preferred service. A preferred
service is a network service that is connected if a CONNECT command is issued
without specifying the service name.
If a preferred service is enabled for a port, you need only to type the CONNECT
command to initiate a connection to the service name stored in NVRAM. You also
have the option of defining a preferred node and port name.
Note
If no preferred service is set, the DECserver 90L+ will use the last
number redial feature.

Enabling Preferred Service by Menu
To enable preferred service from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Preferred Service by entering PR and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Enable by entering E and press Return .
5. Set the parameters in response to the prompts. The setting of each parameter
is terminated with a Return . Entering a Return with no input terminates the
command. If an incorrect entry is made, the DECserver 90L+ aborts the
command sequence.
Enable Preferred Service by Command Line
The command line for enabling preferred service is:
-> SET PR,<port>,E,<service>[,<node>[,<port>]] Return

4–36 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to enable preferred service from the menu.
-> SET

Return

Managing the DECserver 90L+ 4–37

Managing the DECserver 90L+

Disable Preferred Service by Menu
To disable preferred service from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
indicates the port to which you are connected.
2. Select Preferred Service by entering PR and press Return .
3. Select the Port by entering a number (1 through 8) and press Return .
4. Select Disable by entering D and press Return .
Disable Preferred Service by Command Line
The command line for disabling preferred service is:
-> SET PR,<port>,D

Return

4–38 Managing the DECserver 90L+

Managing the DECserver 90L+

The following example shows how to disable preferred service for a port from the
menu.
-> SET

Return

Managing the DECserver 90L+ 4–39

Managing the DECserver 90L+

Setting Server Parameters
The following server parameters can be set:
•

Server name

•

Prompt

•

Zero counters

•

Reset server and ports to factory default settings
Note: Resetting the server disconnects all sessions

Table 4–4 describes each of the parameters that can be set.
Server parameters can be set from a menu or by a command line entered at the
prompt. The following sections describe how to set the server parameters using
both methods.
If authorized mode is set, you must first enable manager mode.
Table 4–4 Server Parameters
Field

Description

Name

Maximum of 16 characters. You can use the hyphen (-), underscore
(_), dollar sign ($), or alpha-numeric characters.

Prompt

Maximum of 16 characters. Any character including leading and
trailing spaces. Alphabetic characters appear uppercased. During a
MOP connection, the default prompt "->" is used.

Actions

N = No action taken
Z = Zero network counters
F = Reset all settable parameters to factory default settings

All sessions are disconnected

4–40 Managing the DECserver 90L+

Managing the DECserver 90L+

Setting Server Parameters from the Menu
To set server parameters from the menu:
1. Enter SET at the DECserver 90L+ prompt and press Return . The asterisk (*)
in the menu indicates the port to which you are connected.
2. Select Server by entering S and press Return .
3. Set the parameters in response to the prompts. The asterisk (*) indicates the
current setting of the parameter. The setting of each parameter is terminated
with a Return . Entering a Return with no input for a parameter leaves the
field unchanged. If an incorrect entry is made, the DECserver 90L+ signals
the error and waits for a correct entry.
Setting Server Parameters By Command Line
Command line mode allows server parameters to be set with a single entry.
The format for the command line is as follows:
-> SET S,<name>,<prompt>,<action>

Return

The following example shows how to set the server name to MYSERVER, set the
prompt to MYPROMPT>, and zero the counters from the menu.
-> SET S,MYSERVER,MYPROMPT>,Z

Return

-> %DS90L-100, Parameters Have Been Changed
MYPROMPT>

Managing the DECserver 90L+ 4–41

Managing the DECserver 90L+

The following example shows how to set the server name to MYSERVER, set the
prompt to MYPROMPT>, and zero the counters (user entries are bolded).
-> SET

Return

-> %DS90L-100, Parameters Have Been Changed
MYPROMPT>

4–42 Managing the DECserver 90L+

Managing the DECserver 90L+

SHOW Command
The SHOW command allows you to show port or server parameters, status, and
counters.
SHOW PORTS
The SHOW PORTS command displays the status for each of the eight ports of the
DECserver 90L+. Table 4–5 describes each of the fields in the port status display.

Table 4–5 Port Status Description
Field

Description

Name

Shows the name of each port.

Speed

Shows the receive/transmit speed.

In Flow

Tells if the input flow control is enabled or disabled and gives its
current state (on/off).

Out Flow

Tells if the output flow control is enabled or disabled and gives its
current state (on/off).

Type

Tells if the device type is set for a terminal or printer.

Break

Tells if the port is set for local or remote break.

Rem Mod

Tells if remote modify is enabled or disabled.

Test

Tells if the loopback test is active.

AutoConf

Tells if AutoConfigure is enabled or disabled.

ODL

Tells if On Demand Loading of fonts is enabled or disabled.

Status

Tells if the port is connected to a service, local (the terminal is at the
DECserver 90L+ prompt), or off.

Service

Tells the name of the service to which a port is connected.

Node

Gives the name of the node to which a port is connected.

Port

Gives the name of the port to which the DECserver 90L+ is connected.

MOP CC

Gives the address to which a port is connected if a remote console
carrier session exists.

Dedicated

Displays the service, node and port parameters if a dedicated service is
set.

Preferred

Displays the service, node and port parameters if a preferred service is
set.
(continued on next page)

Managing the DECserver 90L+ 4–43

Managing the DECserver 90L+

Table 4–5 (Cont.) Port Status Description
Field

Description

Frame Err

A counter that gives the number of framing errors for a port.

Queued

Printer ports only. Lists jobs queued to the port (maximum of seven
plus one active).

The SHOW command allows you to examine the status of all ports or a selected
port. The DECserver 90L+ provides additional information when examining an
individual port. The SHOW PORTS command can be entered from the menu or
by a command line.

4–44 Managing the DECserver 90L+

Managing the DECserver 90L+

SHOW PORTS by Menu
The following example shows the SHOW PORTS command used to examine the
status of all the ports. The example shows the command entered interactively.
1. Enter SHOW at the DECserver 90L+ prompt and press Return . The asterisk
(*) indicates the port to which you are connected.
2. Select Ports by entering P and press Return .
-> SHOW

Return

PORT_1
38400
ENA/on
ENA/on
TERM
LOCAL
DIS
NO
ENA
DIS
LOCAL
0

PORT_2 PORT_3 PORT_4 PORT_5 PORT_6 PORT_7 PRINT
9600
ENA/on ENA/on ENA/on ENA/on ENA/on ENA/on ENA/on
ENA/on ENA/on ENA/on ENA/on ENA/on ENA/on ENA/on
TERM
TERM
TERM
TERM
TERM
TERM
PRINTER
LOCAL REMOTE LOCAL LOCAL LOCAL LOCAL LOCAL
DIS
DIS
DIS
DIS
DIS
DIS
DIS
NO
NO
NO
NO
NO
NO
NO
ENA
ENA
ENA
ENA
ENA
ENA
DIS
DIS
DIS
DIS
DIS
DIS
DIS
DIS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
0
0
0
0
0
0
0

SHOW PORTS by Command Line
The command line to show ports is:
-> SHOW P

Return

Managing the DECserver 90L+ 4–45

Managing the DECserver 90L+

Show Status of Selected Port by Menu
The following example shows how to examine the status of a selected port using
menu mode.
1. Enter SHOW at the DECserver 90L+ prompt and press Return . The asterisk
(*) indicates the port to which you are connected, in this case Port 1.
2. Select 1 and press Return .
-> SHOW

Return

GREEN
YOURNODE
LTA789

BLUE
YOURNODE
LTA790

Show Status of Selected Port by Command Line
The command line to show status of a selected port, in this case Port 1, is:
-> SHOW 1

Return

4–46 Managing the DECserver 90L+

Managing the DECserver 90L+

SHOW SERVER
The SHOW SERVER command displays the server type, protocol it runs,
Ethernet address, server name, network counters, current prompt, status of
security, NVRAM, and the network connection.
SHOW SERVER by Menu
The SHOW SERVER command can be entered interactively or by a command
line. The following example shows the SHOW SERVER command entered
interactively.
1. Enter SHOW at the DECserver 90L+ prompt and press Return . The asterisk
(*) indicates the port to which you are connected.
2. Select Server by entering S and press Return .
SHOW SERVER by Command Line
The command line to show server is:
-> SHOW S

Return

Managing the DECserver 90L+ 4–47

Managing the DECserver 90L+

Address:
Name:

08-00-2B-XX-XX-XX
MYSERVER

Frames Received:
Frames Sent:
Multicast Frames Rcv’d:
Multicast Frames Sent:
Frames Sent, Deferred:
Frames Sent, 1 Collision:
Frames Sent, 2+ Collisions:

4430
710
3333
5
4
0
0

Seconds Since Zeroed:
Send Failures:
Receive Failures:
Unrecognized Destination:
Data Overrun:
User Buffer Unavailable:
System Buffer Unavailable:

394
0
0
0
0
0
0

Messages Received:
Messages Transmitted:
Solicitations Accepted:
Solicitations Rejected:
Multiple Node Addresses:

170
98
8
0
0

Duplicates Received:
Messages Re-Transmitted:
Illegal Messages Rcv’d:
Illegal Slots Rcv’d:
Illegal Multicasts Rcv’d:

0
0
0
0
0

Keepalive Timer:
Retransmit Limit:
Prompt:

20
8
MYPROMPT>

4–48 Managing the DECserver 90L+

Security:
NVRAM:
Network:

Disabled
OK
OK

Managing the DECserver 90L+

SHOW DEDICATED/PREFERRED SERVICE
The SHOW DEDICATED/PREFERRED SERVICE command displays the
dedicated and preferred services that have been enabled for each port.
Show Dedicated/Preferred Service by Menu
The SHOW DEDICATED/PREFERRED command can be entered interactively
or by a command line. The following example shows the SHOW DEDICATED
/PREFERRED command entered interactively.
1. Enter SHOW at the DECserver 90L+ prompt and press Return . The asterisk
(*) indicates the port to which you are connected.
2. Select Dedicated/Preferred by entering D and press Return .
-> SHOW Return
|1 PORT_1*
|2 PORT_2
|3 PORT_3
|4 PORT_4
|5 PORT_5
|6 PORT_6
|7 PORT_7
|8 PRINT
|P Ports
|S Server
|D Dedicated/Preferred Service
|
|D Return
PORT_1
PORT_2
PORT_3
PORT_4
PORT_5
PORT_6
PORT_7
PRINT

Dedicated

VMS

VAX1

OSF

Preferred

ULTRIX

DECSTATION

SHOW DEDICATED/PREFERRED SERVICE by Command Line
The command line to show dedicated/preferred service is:
-> SHOW D

Return

Managing the DECserver 90L+ 4–49

Managing the DECserver 90L+

RESET Command
The RESET command allows you to reset individual ports or server parameters
to their power-up state and run the unit’s self-test. Resetting the server sets all
port and server parameters to their power-up state, disconnects all sessions, and
runs a self-test. When the DECserver 90L+ is in authorized mode, the port you
are using must be in manager mode to reset another port or the server.
Ports that have not had their speed set using the SET command will be returned
to the non-autobaud state (no speed set). After being reset, press the Return key
twice to autobaud a port and set the speed.
RESET Command by Menu
The following example shows the RESET command used to reset port 1. The
example shows the command entered interactively.
1. Enter RESET at the DECserver 90L+ prompt and press Return . The asterisk
(*) indicates the port to which you are connected, in this case Port 1.
2. Enter 1 and press Return .
-> RESET

Return

Return

-> %DS90L-110, Port Has Been Reset
->

4–50 Managing the DECserver 90L+

Managing the DECserver 90L+

Command Line
The DECserver 90L+ user interface provides a command line interpreter as an
alternate means to set and show port and server parameters. The command
line interpreter helps with the control of the DECserver 90L+ by network
management software and by users who want to bypass the menu interface.
For command line entries, the commands and parameters are not entered
through a menu on the terminal screen. The user’s input is echoed and the
complete command is processed after a Return is entered. Note that any error in
parsing a command will cause the entire command to be ignored.
A space is required between the command (set or show) and its parameters. The
command line interpreter uses a comma (,) as a delimiter to separate the different
fields in a command line. To make the command line interpreter easier to use,
the current value (default) for a field will be used when:
1. There is no entry for a field.
2. A Return is entered before all the parameters have been entered.
The following are the command lines that can be entered at the DECserver 90L+
prompt (->) to set, show, or reset parameters.
Set Port Parameters:
->SET <port>,<name>,<speed>,<IFC>,<OFC>,<device>,<break>,<rem_mod>,<test>
------------------------------------------------------------------1
1200
E
E
T
L
E
Y
2
2400
D
D
P
R
D
N
3
4800
C
C
4
9600
5
19200
6
38400
7
8
Set Server Parameters:
-> SET S[erver],<name>,<actions>
-------------------------N
Z
F

Managing the DECserver 90L+ 4–51

Managing the DECserver 90L+

Set Authorized Mode:
-> SET AUTH[orized],S[et],<password>
Clear Authorized Mode:
-> SET AUTH[orized],C[lear]
Enable AutoConfigure Mode:
-> SET AUTO[configure],<port>,E[nable]
Disable AutoConfigure Mode:
-> SET AUTO[configure],<port>,D[isable]
Enable Dedicated Service Mode:
-> SET D[edicated],<port>,E[nable],<service>[,<node>[,<port>]]
Disable Dedicated Service Mode:
-> SET D[edicated],<port>,D[isable]
Enable Manager Mode:
-> SET M[anager],E[nable],<password>
Disable Manager Mode:
-> SET M[anager],D[isable]
Enable On-Demand Loading Mode:
-> SET O[n-demand],<port>,E[nable]
Disable On-Demand Loading Mode:
-> SET O[n-demand],<port>,D[isable]
Set Password:
-> SET PA[ssword],<old_password>,<new_password>
Enable Port Mode:
-> SET PO[rt],<port>,E[nable]
Disable Port Mode:
-> SET PO[rt],<port>,D[isable]
Enable Preferred Service Mode:
-> SET PR[eferred],<port>,E[nable],<service>[,<node>[,<port>]]
Disable Preferred Service Mode:
-> SET PR[eferred],<port>,D[isable]

4–52 Managing the DECserver 90L+

Managing the DECserver 90L+

Show Port Parameters:
-> SHOW P[orts]
Show Server Parameters:
-> SHOW S[erver]
Show Dedicated/Preferred Parameters:
-> SHOW D[edicated]
Reset Port Parameters:
-> RESET <port>
Reset Server Parameters:
-> RESET S[erver]
Command Line Recall and Editing
The DECserver 90L+ supports command line recall and editing of the command
line. Only insert mode is supported. Lines can be recalled and edited using the
keys described in Table 4–6.
Table 4–6 Command Line recall and editing
Keys

Function

Ctrl U

Cancels input

Ctrl H

Moves to the beginning of the field

Ctrl E

Moves to the end of the field

Moves backward and forward within the buffer
Recalls previous and subsequent commands in the buffer

Managing the DECserver 90L+ 4–53

Managing the DECserver 90L+

Using a Printer
The installation requirements for a printer are dependent on the system
environment in which it is installed. However, there are three basic steps that
need to be performed when setting a DECserver 90L+ port for use by a printer.
1. Choose the port to be used.
a. Set the server name if it has not already been done.
b. Set the port for use by a printer. The following port parameters should be
set:
Name = port name you want to use
Speed = speed of printer
Input flow = as required by printer (usually enabled)
Output flow = as required by printer (usually enabled)
Device type = Printer
Break = as required by printer (usually don’t care)
Remote Modify = enabled if host needs to be able to change printer
characteristics (usually disabled)
2. Set up the system so it can access the printer port. Refer to your system
documentation for information on this procedure.
For example, on a VMS system you would use LATCP to map LTA1234: to
the server name and port name on the DECserver 90L+. A typical VMS setup
is as follows:
$ MCR LATCP
LCP>CREATE PORT LTA1234
Local Port Name = LTA1234:

LCP>SET PORT LTA1234:/NODE=MYSERVER/PORT=PRINT
Specified Remote Node Name = MYSERVER
Specified Remote Port Name = PRINT
Link Name = LAT$LINK
LCP>EXIT
$

4–54 Managing the DECserver 90L+

Managing the DECserver 90L+

3. Set the LTA device to the same speed as the DECserver 90L+ port:
$ SET TERM /NOBROAD/PERM/SPEED=9600 /WID=80 LTA1234:
4. Configure the print queue.
For example, assuming that the queue manager has been started, the VMS
commands to create a queue named LASER1 that is spooled to the system
disk are as follows:
$ SET DEVICE/SPOOL=(LASER1, SYS$SYSDEVICE:) LTA1234:
$ INIT/QUEUE /START/PROC=LATSYM /SEP=(NOFLAG,NOTRAILER)LASER1 /ON=LTA1234:
Note
If you want to set all eight ports for use by printers, the eighth port’s
parameters must be set using a MOP console carrier session.
The print queue configuration is only in effect until the host is
rebooted. To save the configuration, enter steps 2,3, and 4 into
the LAT$SYSTARTUP.COM file. The LAT$SYSTARTUP.COM file
configures the service node and its services and maps an application
port on the service node to a remote printer on a server. Ensure that
LAT$SYSTARTUP.COM is invoked from SYSTARTUP_V5.COM. The
call to invoke LAT$SYSTARTUP.COM should be after DECnet is up and
running.
The DECserver 90L+ can interpret LAT codes to output a timed break
condition from a terminal port. Using this feature, the DECserver 90L+
can be used to manage a VAX system through its console port.

Managing the DECserver 90L+ 4–55

5
Troubleshooting the DECserver 90L+
This chapter describes how to troubleshoot the DECserver 90L+. To troubleshoot
your unit:
1. Verify that the unit is properly installed.
2. Note the fault condition.
3. Isolate the problem. Use Table 5–1 as a guide to determine the probable
cause and the suggested solution.
Table 5–1 DECserver 90L+ Troubleshooting
If...

Then...

Do this...

The power LED is not
‘‘on’’

The DECserver 90L+
is not receiving proper
voltage.

Check the AC power connection
and verify that the AC outlet
is working. Check the power
connection on the DECserver 90L+.
If the problem still exists, replace
the power supply.

The self-test LED is not
‘‘on’’

The unit did not pass
self-test.

Replace the unit.

The network LED is not
‘‘on’’

The unit’s network
connector is not properly
terminated.

Check network connection.
Check if the segment is properly
terminated.
Disconnect unit from network.
Connect T-connector with two
50 ohm terminators. If the
LED lights, then it is a network
problem. Otherwise, replace the
unit.
(continued on next page)

Troubleshooting the DECserver 90L+ 5–1

Troubleshooting the DECserver 90L+

Table 5–1 (Cont.) DECserver 90L+ Troubleshooting
If...

Then...

Do this...

There is no response
from the terminal server

The port and terminal
baud rates are not
compatible.

Shut off and turn on the terminal.
Press Return twice to set the port
baud rate (autobaud).
Terminal transmit and receive
speeds must be the same.

You cannot connect to
the service

The terminal flow
control is disabled by
XOFF.

Use the terminal’s setup to clear
communications.

The port type is set to
printer.

Set port to term.

The port is disabled.

Contact the system manager.

There is faulty wiring
between the terminal
and the DECserver
90L+.

While watching the activity LED
on the DECserver 90L+, the LED
should blink when characters are
typed at the terminal. If not, check
that the activity LED blinks when
characters are typed on terminals
connected to other ports. If the
activity LED does blink for other
ports, the wiring between your
terminal and the DECserver 90L+
or the terminal itself is faulty.

The service is not
available.

Check for service availability.

LAT is not installed on
the host system.

Verify that LAT Version 5.0 or
higher is running on the host
system.

It is a network problem.

Check the network LED, it should
be on. If not, check the network
connection. If the LED is on, you
can check network connectivity by
running MOP loopback or a MOP
console carrier session.
(continued on next page)

5–2 Troubleshooting the DECserver 90L+

Troubleshooting the DECserver 90L+

Table 5–1 (Cont.) DECserver 90L+ Troubleshooting
If...

Then...

Do this...

The printer does not
work

The port is not set for a
printer.

Set the port for the printer.

The baud rates are
incompatible.

Check printer and port baud rates.

The flow control is not
set as required by the
application.

Check flow control.

The port and/or server
name does not match
with the host.

Verify that the names match.

Troubleshooting the DECserver 90L+ 5–3

A
Specifications and Parts List
Specifications for the DECserver 90L+ are divided into the following categories:
•

Physical dimensions

•

Environmental specifications

•

Electrical specifications

•

LAT specifications

Physical Dimensions
The physical dimensions of the DECserver 90L+ are as follows:
Dimension

Value

Height

3.18 cm ( 1.25 in)

Width

27.31 cm ( 10.75 in)

Depth

12.70 cm ( 5.0 in)

Weight

.77 kg ( 1.7 lb)

Specifications and Parts List A–1

Specifications and Parts List

Environmental Specifications
The DECserver 90L+ is designed to operate in an office environment or equipment
room environment such as, telephone closets or satellite equipment rooms. It is
not intended to operate in an air plenum.

Operating Environment
The operating environment for the DECserver 90L+ is as follows:
Item

Value

Temperature

5° C to 50° C (41° F to 122 ° F)

Maximum rate of change

20° C/hr (68° F/hr)

Relative humidity

10 % to 95 % (non-condensing)

Wet-bulb temperature

32° C ( 90° F) maximum

Dew point

2° C (36° F) minimum

Altitude

Sea level to 2.4 km (8000 ft)

Air flow

Convectively cooled. A minimum of 10 cm(4 in) of
space must be provided on both ends of the unit for
adequate air flow.

Shipping Environment
The shipping environment for the DECserver 90L+ is as follows:
Item

Value

Temperature

-40° C to 66° C (-40 ° F to 151 °F)

Relative humidity

10 % to 95 % (non-condensing)

Altitude

Sea level to 4.9 km ( 16000 ft)

A–2 Specifications and Parts List

Specifications and Parts List

Power Specifications
The following sections describe the power specifications for the DECserver 90L+.

Power Supply
Item

Value

Voltage (North American)

104 VAC to 128 VAC (nominal 120 VAC)

Voltage (International)

208 VAC to 256 VAC (nominal 240 VAC)

Current at 120 volts

.25 A

Current at 240 volts

.125 A

Frequency

50 Hz to 60 Hz

Power consumption

16 Watts

Output voltage

5.1 VDC

Output current

1.8 A

DECserver 90L+
Item

Value

Input voltage

4.75 to 5.25 VDC

Input current

1.0 A

Connector Pin Out
Table A–1 describes the pin out of the MMJ connectors on the DECserver 90L+.
Note
The DECserver 90L+ does not provide modem control signals.

Specifications and Parts List A–3

Specifications and Parts List

Table A–1 MMJ Pin Out
Pin

Signal Name

Ready-Out or DSR1

Transmit (TXA)

Transmit return (RC)

Receive return (RXB)

Receive (RXA)

Ready-In or DTR2

This signal is pulled high when power is applied to the DECserver 90L+.

This signal is tied to ground through a 3K ohm resistor.

Figure A–1 shows the circuit connections for each port.
Figure A–1 Port Circuit

+5V
150
EIA
423
Driver

EIA
423
Recv’r

Ready-Out or DSR

Transmit

Transmit Return

Receive Return

Receive

Ready-In or DTR

MMJ

LJ-00562-TI0.DG

A–4 Specifications and Parts List

Specifications and Parts List

LAT Specifications
This section provides a description of the LAT implemented by the DECserver
90L+. Table A–2 lists the server characteristics.
Table A–2 LAT Server Characteristics
Characteristic

Setting

High protocol

5.2

Low protocol

5.0

Product type code

Node type

Master

Keepalive timer

20s

Master circuit timer

80ms

Local cache node limit

Password

8 characters maximum

Prompt

16 characters (settable)

Queue limit

7 per port

Retransmit limit

Session limit

4 per port

MOP session limit

1 per port

Server name

16 characters (settable)

Specifications and Parts List A–5

Specifications and Parts List

Table A–3 lists the port characteristics.
Table A–3 LAT Port Characteristics
Characteristic

Setting

Character size

Flow control

XON/XOFF or disabled

Parity

None

Speed (Input = Output)

1.2K to 38.4K

Name

6 characters (settable)

Break

Local, remote (settable)

Session limit

Parts List
Table A–4 lists the kit contents for a standalone installation.
Table A–4 Standalone Installation Kit Contents
Part

Order Number

DECserver 90L+ kit:

DSRVG-AA

•

Wall mountable power supply with 2.4 m (8ft) DC
power cable attached (H7082)

•

DECserver 90L+ (DSRVG-MA)

•

Owner’s Manual (EK-DSRVG-OM)

A–6 Specifications and Parts List

Specifications and Parts List

Table A–5 lists the kit contents for the installation in a DEChub 90 Ethernet
backplane.
Table A–5 DEChub 90 Ethernet Backplane Installation Kit Contents
Part

Order Number

DECserver 90L+ kit:

DSRVG-MA

•

DECserver 90L+

•

Owner’s Manual (EK-DSRVG-OM)

Table A–6 lists the related parts for the DECserver 90L+.
Table A–6 Related Parts
Part
ThinWire Coaxial Cables

Terminal Interconnection Cables

Length

Order Number

6ft (1.8m)

BC16M-06

15ft (4.7m)

BC16M-15

30ft (9.3m)

BC16M-30

2ft (0.6m)

BC16E-02

10ft (3.1m)

BC16E-10

25ft (7.6m)

BC16E-25

50ft (15.2m)

BC16E-50

100ft (30.4m)

BC16E-A0

T-Connector

H8223-00

Barrel Connector

H8224-00

ThinWire Terminator

H8225-00

Specifications and Parts List A–7

B
Related Documentation
Document Title

Order Number

DECbridge 90 Owner’s Manual

EK-DEWGB-OM

DEChub 90 Owner’s Manual

EK-DEHUB-OM

VMS LAT Control Program (LATCP) Manual

AA-LA32B-TE

Open DECconnect Building Wiring Components
Applications Catalog

EB-K2407-42

DECconnect System Planning and Configuration Guide

EK-DECSY-CG

Ordering Information
Customers can order documents by phone or mail.
Continental USA and Puerto Rico
Call 800-258-1710 or mail to:
Digital Equipment Corporation
Peripherals and Supplies Group
P.O. Box CS2008
Nashua, NH 03061
New Hampshire, Alaska, and Hawaii
Call 1-603-884-6660.
Outside the USA and Puerto Rico
Mail to:
Digital Equipment Corporation
Attn: Accessories and Supplies Business Manager
c/o Local Subsidiary or Digital-Approved Distributor