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EK-KCRSC-FS-2

July 1987

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Document:	Remote Services Console Field Service Manual
Order Number:	EK-KCRSC-FS
Revision:	2
Pages:	64
Original Filename:

OCR Text

EK-KCRSC-FS-002

Remote Services Console
Field Service Manual

EK-KCRSC-FS-002

Remote Services Console
Field Service Manual

Digital Reid Service Engineering
Stow, Massachusetts

First Edition March 1986
Second Edition July 1987
Copyright O 1986 and 1987
by Digital Equipment Corporation
All rights reserved
The reproduction of this material, in part or whole, is strictly
prohibited.
For
copy
information,
contact
the
Educational
Services Department, Digital Equipment Corporation, Maynard,
Massachusetts 01754.
The information in this document is subject to change without
notice. Digital Equipment Corporation assumes no responsibility
for any errors that may appear in this manual.
Printed in U.S.A.
The following are trademarks of
Digital Equipment Corp~ration,
Maynard, Massachusetts.

mamaamr
DEC
DECmate
DECnet
DECsystem-10
DECSYSTEM-20
DEC US

DECwriter
DIBOL
MAS SB US
PDP
Professional
Rainbow
RSTS

RSX
UNIBUS
VAX
VMS
VT
Work Processor

CONTENTS
INTRODUCTION
Scope ••••••••
RSC Overview
Certifications
Related Documents

v
v

vi
vii

CHAPTER 1

INSTALLATION

1. 0
1.1. l
1.1. 2
1.1. 3
1.1. 4
1.1. 5
1.1. 6
1. 2
1. 3

Introduction
Site Preparation
Telephone Line
Modem ••••••••••
CPU Communications Port
AC Power •.•••••
Console Terminal and Comm Port Cables
Accessibility
Installation Procedure
Removing the RSC Unit

CHAPTER 2

OPERATION

2.1
2.2
2.3
2.4
2.5
2.6
2.6.1
2.6.2
2.6.3
2.6.4
2.7
2.8

Introduction ••.••.••
Summary of Operation
POWER Indicator
FAULT Indicator
Data Rate Switches
Keyswitch
REMOTE
LOCKOUT
USER PORT
REMOTE USER
Console Terminal Messages
Local Copy Switch ••••••.•

CHAPTER 3

TROUBLESHOOTING

3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8

Introduction ••••••••••••••
Troubleshooting Procedures
Cable Test and RSC Bypass
Power-up Test
USER PORT Test
Telephone Line and Modem Test
REMOTE USER Test
REMOTE Test ••••••••••••

1.1

iii

1-1
1-1
1-1
1-1
1-2
1-2
1-3
1-3
1--3
1-20

2-1
2-1
2-9
2-9
2-10
2-10
2-11
2-11
2-12
2-12
2-12
2-13

3-1
3-1
3-1
3-2
3-3
3-3
3-3
3-4

APPENDIX A

USER GUIDE

INDEX
TABLES
2-1
2-2
2-3
2-4
2-5
3-1

Generic Systems Operator Information ••••••••••••
VAXcluster Operator Information •••••••••••••••••
Local VAX/PC38N Console Operator Information ••••
Commands Used by the Remote Station (Host) • • • • • •
Other Switches and Indicators •••••••••••••••••••
Troubleshooting Chart • • • • • • • • • • • • • • • • • • • • • • • • • • •

2-2
2-3
2-4
2-5
2-9
3-5

FIGURES

1-1
1-2
1-3
1-4

1-5
1-6
1-7

1-8
1-9

1-10
2-1
2-2
2-3
2-·4
A-1

Voltage Select Switch and Fuses ••••••••••••••••.
Language~specific Label Installation ••••••••••••
Front Panel Switch Locations ••••••.•••••.•.•••..
Generic RSC Installation Overview •••••••••••••.•
VAX/PC38N RSC Installation Overview ••••••••.••..
VAXcluster RSC Installation Overview ••••••••••.•
RSC Cable Configuration Plan •.••••••••••••.•••.•
EIA Cable Connectors ••••••••••••••••••••••••.•.•
Data Rate Switches •••••••••••.••••••••••••••••••
Field Transaction Report •••••.••••••••.••••.••.•
Typical Printout For VAX Console "Show Status" .•
Keyswitch Positions REMOTE and LOCKOUT ••••••••..
Keyswitch Positions USER PORT and REMOTE USER ••.
Data Rate Switches ••••••••••••••••••••.•••••••••
RSC User Guide ••••••••••••••••••••••••.••••.••.•

1-4

1-5
1-6

1-8
1-9

1-10
1-12
1-14

1-15
1-24
2-6
2-7
·2-8

2-10
A-2

RELEASE NOTES FOR
REMOTE SERVICES CONSOLE FIELD SERVICE MANUAL
REVISION 002

+---------------------------------------------------------------+
o This revision includes ECO changes that resolved the
problem of garbled or echoed characters when both the
customer and the CSC enabled Local Copy (see page 2-13).
o To reflect software changes, all references to the (RD)
console display message pref ix have been changed to
(RSC 001).
o We have added specific installation information for
VAX/PC38N systems (VAX with PC38N console) beginning on
page 1-17.
o Software changes that resolved the VAX/PC38N TALK mode
problem are reflected in Table 2-4 on page 2-5.
o Some information about "smart" modems has been added on
page 1-2.

+---------------------------------------------------------------+

INTRODUCTION
SCOPE
This manual provides information for Digital Field Service
personnel who install, test, and operate the Remote Services
Console option (RSC) •
Chapter 1
Installation
Provides a step-by-step procedure
for installing the option. It also gives a procedure for removing
it.
Chapter 2
Operation --Describes switch settings for local
and remote operations and tells you what the indicators mean.
Most of this information is also included in the Site Management
Guide for the customer's use.
Chapter 3
Troubleshooting
Tells you how to solve
problems caused by wrong switch settings, cable connections, and
other faults external to the RSC unit. The RSC unit is to be
swapped if an internal fault occurs.
RSC OVERVIEW
The Remote Services Console (RSC) is a microprocessor-controlled
data path switch. RSC is a Digital Field Service "tool" and is
not for sale. It will be used for remote services delivery and
offers the following features.
o

Does not require a dedicated modem and telephone line.

A customer may have a communications port application
using a modem and telephone line. If so, RSC can share the
modem and telephone
line
for
other
remote
services
(including remote diagnosis).
o

Gives remote access to the system communications port
using Remote Diagnosis Service Protocol (RDSP).
remote user can log in to the system through a
communications port for any authorized application. RDSP
protocol is enabled to ensure data integrity.

Switch-controlled LOCKOUT
A customer can set the RSC front panel keyswi tch to
disable all remote access to the system through the RSC
modem port.
The key can be removed
for
additional
security.

Data rate is selectable by front panel switches.
The RSC interfaces operate with their data rates set to
match the data rates of the system console terminal and
the modem. If the modem or console terminal data rate is
changed, there is no need to open the RSC enclosure. The
switches on the front panel set RSC to the matching modem
or terminal data rate.

9600 bits per second (b/s) capability
RSC operates at data rates of
9600 b/s.

300,

1200,

2400,

4800,

Easier Troubleshooting
A technician or operator can disconnect cables from the
RSC unit and patch them together for testing. There is no
need to open system enclosures. This makes it easy to find
a cable fault or to temporarily bypass the RSC unit if it
fails.

CERTIFICATIONS
The Remote Services Console
certifications.

(MDSOl)

FCC Class A
VOE Class B - DBP Directive 1046/84
Underwriters Laboratory Listed 708A
IEC 435 Classified
CSA
Australia - C83/7/903A
PTT Approved:
Germany
Belgium
Finland
Japan
Sweden

Number ZA301096U

vii

has

received

the

following

Bescheinigung des Her.stellers/I mporteurs
Hiermit wird bescheinigt, da8 der/die/das

....~.!?.~.~-~.....~.:.:..~~-~..~.S.~.~-~-=~=.':~.~.....................................................................

(Gerlt. Typ. Bezeichnung)

in Obereinstimmung mit den Bestimmungen der

....~.~-~--~-~--==-~.!.~.9.~~S.....1.~.~-~!..~~...........................................................................

(Amt8bi.ttverfilgung)

funk-entst6rt ist
Der Deutschen Bundespost wurde das lnverkehrbringen dieses Gerates angezeigt
und die Berechtigung zur Oberpl'Ufung der Serie auf Einhaltung der Bestimmungen
eingeriiumt

DIGITAL EQUIPMENT GMBH

~;.;·;;~·;;;;;~;;;i.;;;;;;;·····;:;:e-iscF\atisf"iasa··9-:r···

...............................

8000 MUNCHEN 81

Telefon (089) 95 91-0
Telex 5/215780, Telefax 95911010

All other applicable approvals have been applied for.

RELATED DOCUMENTS
Other remote diagnosis manuals cover, in greater detail, related
subjects such as site preparation, general modern information, and
working with the Digital Customer Support Center (CSC).
KBDOl Options Technical Manual

(EK-KBDOl-TM)

KC730 Remote Diagnosis Option
Technical Manual

(EK-KC730-TM)

KC780 Family Remote Diagnosis Options
Technical Manual

(EK-KC780-TM)

viii

CHAPTER 1
INSTALLATION
1.0

INTRODUCTION

This chapter provides information needed for an RSC installation.
It begins with site preparation, continues with a step-by-step
installation procedure, including testing, then tells you how to
remove an RSC unit.
NOTE
The RSC unit is to be installed only
during the period of system warranty or
under the terms and conditions of a
maintenance contract. RSC remains the
property of Digital; it is not for sale.
1.1

SITE PREPARATION

Before you install the RSC unit, you will have to check for each
of the following items.
o
o
o
o
o
o
o

1.1.1

A telephone line
A modem
The CPU communications port
AC power for the RSC unit
Console terminal and comm port cables
Accessibility
For all VAX/PC38N systems (any VAX with a PC380 console)
17-01337-01 adapter is required.
(See Step 2 of the installation procedure.)

Telephone Line

If there is no telephone 1 ine to the system, the customer wi 11
have to arrange for one to be installed. It should be, at a
minimum, a voice grade line that supports up to 1200 b/s
operation. The telephone company may ask the customer to give
them certain information about the modem that will be connected
to the line. An example of the required information is given in
Paragraph 1.1.2.
1.1.2

Modem

The customer is required to supply, and have installed, a modem
that is suitable for RSC remote operation. The modem must be
RS-232-C compatible, comply with Digital Standard 052,
and
provide tne Automatic Answer feature. All modems manufactured by
Digital meet the above criteria.

1-1

Note that some "smart" modems are software-controlled and cannot
be used because the signals specifically used by RSC (DSR, DTR,
CTS, and DCD) are "forced on" or tied high. Also, a modem that
has jumpers or switches to change signal options may be used by a
customer in a non-compatible configuration. You will want to
avoid the use of such a modem because of the problem of changing
the configuration each time it is to be used for remote services.
Before the modem is installed, the telephone company may ask the
customer to give them information about the modem. For example,
the information needed for Digital DF03 or DFll 2 modems is as
follows.
MANUFACTURER

Digital

MODEL

DF03-AA or DF112-AA

FCC REGISTRATION NO. DF03-AA - A0994Q-69391-DM-R
DF112-AA - A0994Q-13634-DM-E
RINGER EQUIVALENCE

DF03-AA - 0.3, Type A
DF112-AA - 0.3, Type B

DATA RATE

300/1200 b/s

The RSC modem interface supports data rates of 300 to 9,600 bits
per second (b/s). Thus, RSC allows both the customer's CPU comm
port and Digital's Remote Services Delivery to operate at speeds
up to and including 9600 b/s.
1.1. 3

CPU Communications Port

Most customer systems have at least one communications port (DZ,
DMF, DMB) being used with a modem and a telephone line. You can
connect the port through the RSC unit, sharing the port and the
modem for both the customer's operations and remote services.
If the customer has not implemented a CPU comm port, there is no
need to do so when RSC is installed. RSC does not need to have a
comm port connection, but can support one. A comm port can be
implemented easily at any time if the customer wants
to
time-share the modem.
1.1. 4

AC Power

The RSC unit requires an ac receptacle for its power. There is a
120/240 voltage select switch on the RSC rear panel that must be
set to the local voltage. The RSC unit should be connected to an
AC power receptacle that a) is not switched by the CPU power
controller and, b) cannot be switched off accidentally. Even when
all or part of the computer system is down, the RSC unit may be
required for remote service.
1-2

1.1.5

Console Terminal and Comm Port Cables

The RSC external interfaces are EIA, RS-232-C compatible and
operate with RS-423 equipment. For control of emissions, the
cables used with RSC should be shielded, Digital BC22E or BC22F
or equivalent.
1.1.6

Accessibility

The RSC unit must be installed so that it is accessible. The
operator must be able to set the keyswitch and data rate switches
and see the indicators. If the modem also has front panel data
rate switching, the RSC unit and the modem should be close
together. The installation procedure helps you use the available
cables to put the RSC unit in the most convenient place.
1.2

INSTALLATION PROCEDURE

STEP 1
Make sure that you have prepared the site. See Paragraph 1.1.
STEP 2
Unpack the option kit and make sure you have all
that they are not damaged.

the parts and

The kit includes the following items.
1 RSC Unit
1 Power Cord
(factory ships with 120 volt, parallel blade male plug)
1 BC22F-10 Cable
1 BC22F-25 Cable
1 RSC Field Service Manual, EK-KCRSC-FS
1 RSC User Guide, EK-KCRSC-UG
1 RSC User Guide, EK-KCRSC-SM
1 Accessory Kit 70-23715-01 (contains the following items)
1 Language-specific Label Set
1 Fuse Carrier, 12-21126-04
1 Fuse, 12-19283-19,
.50A, 5mm.
.25A, 5mm.
1 Fuse, 12-19283-16,
2 Keys
1 Field Transaction Report Form, EN-01748-12

+---------------------------------------------------------------+
VAX/PC38N NOTE
An EIA adapter, part number 17-01337-01 is required for
VAX/PC38N installation. The adapter is not shipped with the
RSC option. The adapter is shipped with each VAX/PC38N
and should be present on-site.

1-3

STEP 3

WARNING
ALL RSC units are shipped with the
voltage select switch set for 120 volt
operation and a 3AG, .SA Slow Blow fuse.
Damage may
result
if
the
unit
is
connected to any other power source
before Step 3 is completed.
In this step you will prepare the RSC unit for connection to ac
power (Figure 1-1).
o

Remove the
receptacle.

yellow

warning

label

that

covers

Set the voltage select switch for operation on the local ac
voltage supply, 100/120 or 220/240 Vac nominal.

For 120V operation, leave the 3AG .SA fuse in place.

For lOOV operation, remove the 3AG .SA fuse and
insert the .SA, Smm fuse with the Smm carrier.

For 220/240V operation, remove the 3AG .SA fuse and carrier
and insert the .2SA, Smm fuse with the Smm carrier.

\
\
/

/
/

Figure 1-1

Voltage Select Switch and Fuses
1-4

carrier~and

5mm FUSE WITH CARRIER

3AG FUSE WITH CARRIER

the

STEP 4
Place the RSC unit so it is standing up on its rear panel. Select
the applicable local language label from the language-specific
label set. Peel the label away from the backing sheet (handle the
label by its edges). Align either the right hand or left hand
edge of the label within the recessed area on the front of the
unit. Guide it gently into position and, when it is correctly
aligned, press it down firmly. (See Figure 1-2)

Figure 1-2

Language-Specific Label Installation

1-5

STEP 5
In this step you do a preliminary,
RSC unit.

basic operation

test of

the

Set the RSC keyswi th to REMOTE USER.
location of the front panel switches.

Plug in
cables.)

The POWER
switch) •

The FAULT indicator should come on for about
(during the power-up self-test), then go off.

Test each of the four positions of the keyswitch. Make sure
that each corresponding indicator comes on. The REMOTE and
REMOTE USER indicators should blink.

Press the LOCAL COPY switch in and latch it.
Test each of
the four positions of the keyswi tch.
The LOCAL COPY
indicator should come on only when the keyswitch is in the
REMOTE position.

POWER

the

power

indicator

FAULT

cord.

(Do

not

should come on

REMOTE

(there

connect

USER PORT

LOCKOUT
0

Figure 1-3 shows the

\
\

any

other

power

one

second

LOCAL COPY

I
REMOTE USER

0---------0----------0

----------------------------------------------------~------------

Figure 1-3

Front Panel Switch Locations

1-6

STEP 6
Ask the customer to assign an account number and password for the
Customer Support Center (CSC) to use. Call the CSC, give them
their account number and password, and ask them to schedule a
test when you finish the installation.
STEP 7
Arrange with the customer to have use of the system during
installation and testing. Figures 1-4, 1-5, and 1-6 show the
basic steps involved in an RSC installation. You will not need to
shut down the system, but the customer needs to know when you are
disconnecting cables and doing tests. For example, disconnecting
a console terminal cable while a message is being received could
cause a system problem.
Make sure that the console terminal is working correctly and that.
there are no problems that might interfere with RSC operation or
testing. If the customer has a modem and telephone line working
on a communications port, test them for correct operation also.

+---------------------------------------------------------------+
VAXcluster NOTE
I
A VAXcluster node may not have a dedicated console terminal.

I
I

STEP 8
Before you begin installation, check the lengths of the cables
that you will use and make sure that you can put the RSC unit
where the customer wants it. Two cables are supplied in the RSC
kit and you will also use the following cables that are already
at the site.
o

The cable that connects the console terminal to the CPU
console terminal port (not on VAX/PC38N). This cable is a
BC22D or equivalent (female/female) and will be used to
connect the console terminal to the RSC unit in Step 11.

If the CPU comm port has been implemented,
connects the modem to the CPU comm port.

the cable that

+---------------------------------------------------------------+
VAX/PC38N NOTE

The VAX\PC3$N does not have a traditional console terminal;
you will be connecting a cable from RSC to the VAX Console
System Remote Port in Step 11.

1-7

CPU
ORIGINAL SYSTEM

CONSOLE
TERMINAL
PORT

COMM PORT IMPLEMENTATION
OPTIONAL

COM
PORT

CONSOLE
TERMINAL

MODEM

CPU
DISCONNECT CABLES FROM
CONSOLE TERMINAL AND MODEM
(MODEM MAY NOT BE PRESENT)

CONSOLE
TERMINAL
PORT

COM
PORT

CONSOLE
TERMINAL

MODEM

CPU

CONNECT NEW CABLES TO CONSOLE
TERMINAL AND MODEM
(MODEM REQUIRED)

CONSOLE
TERMINAL
PORT

COM
PORT

TERMINAL

CPU
CONNECT CABLES TO RSC UNIT

CONSOLE
TERMINAL

Figure 1-4

CONSOLE
TERMINAL
POAT

..,_ \

r·

~1!1EMOTE~\
SERVICES
CONSOLE

COM
PORT

COMM PORT IMPLEMENTATION
OPTIONAL

a.. ..z_
'7

Generic RSC Installation Overview
1-8

MODEM

DISPLAY

....._.... KEYBOARD

VAX CONSOLE
(PC38N)
~
PRINTER REMOTE
PORT PORT

1 l J~

VAX CPU

r----,
I COMM I

....._

1--

POAT

l 1

COMM 1

IvJ

LA50
PRINTER

ADAPTER

7
'

I
I
I

I
I

'\\

I
I

I A1

L.:----~~----~- .__,.J~ - - - - ~ ._ -

_._J

\
\

A2
f\

_:,!

'
REMOTE SERVICES CONSOLE
,..._
__________
~~-------------------.-------------'

' ......

Figure 1-5

---

MODEM

VAX/PC38N RSC Installation Overview
1-9

THIS PAGE IS RESERVED FOR VAXcluster INFORMATION
WHICH WAS NOT AVAILABLE J::>RIOR TO THE
PUBLICATION DATE' OF THIS MANUAL

Figure 1-6

VAXcluster RSC Installation Overview
1-10

You can use Figure 1-7 to plan how to configure the RSC cables.
The cables may be of different lengths, but most of them are
interchangeable. When you know where the customer wants the RSC
unit installed, you can plan where each cable should be used.

CABLE NOTE
1.
The
cable
connecting
the
local
console terminal to the CPU console
terminal port will be a BC22D. It is not
interchangeable with the other cables
being used with RSC, and it must be
connected to the CPU console terminal
port and RSC connector A2 (in Step 11).
2. The other cables must be BC22E or
BC22F or equivalent and they are all
interchangeable.
These
are
required
because
RSC
implements
full
modem
control.

STEP 9
Follow your cabling plan in Figure 1-7 when you disconnect the
system cables. Your plan should identify the cable connectors you
will disconnect and the ones you will not have to disturb.
Disconnect the BC22D cable from the console terminal, leaving it
connected to the CPU Console Terminal port (does not apply to
VAX/PC3 SN) •
STEP 10
For all systems including VAX/PC38N, if the comm port has been
implemented, disconnect the cable that connects the CPU comm port
to the modem. You may not need to disconnect both ends of the
cable.

+---------------------------------------------------------------+
VAX/PC38N NOTE
If there is a cable connected from the modem to the VAX
Console System Remote Port (COMM PORT 1), disconnect it.

1-11

Before you beg in to move hardware around, you may want to use
the space on the facing blank page to sketch out and plan the
installation. It can help you decide:
o

Where you will use each available cable;

Whether you will need longer cables to be able to put the
hardware where the customer wants it;

Which cable connectors are already in the right place and
won't have to be disturbed.

All systems except VAX/PC38N have a BC22D connecting the CPU
Console Terminal Port to the Console Terminal. This cable must
remain connected to the CPU Console Terminal Port.

#
Any system MAY have a
Modem.

cable connecting

VAX/PC38N Systems MAY have a cable
System Remote Port ~a modem.

(These two
cables are
supplied in
the option kit.)

Figure 1-7

Length
the CPU Comm Port

to a

Length

connecting

the

Length

!~£22F-~~

Length ____
2_5_'~-

VAX

Console

10'

RSC Cable Configuration Plan
1-12

WORKSHEET FOR USE WITH FIGURE 1-7

1-13

STEP 11
Put the RSC unit (and the modem) where you are going to install
them. Follow your cabling plan in Figure 1-7 and connect the
cables as shown in the table below. Note that the RSC does not
require that a CPU comm port be implemented, but if there is one,
Digital recommends that it be connected to the RSC. Figure 1-8
shows the locations of the connectors.
SYSTEMS
All
All
All
All

Generic
Generic
Generic
Generic

VAX/PC38N
VAX/PC38N
VAX/PC38N
VAX/PC38N

CONNECT CABLE FROM-

Systems
Systems
Systems
Systems

TO RSC
CONNECTOR
Local Console Terminal
Al
A2
CPU Console Terminal Port (BC22D)
CPU Comm Port
Bl
Modem
B2
Hardcopy Terminal *
Console System Remote Port
CPU Comm Port *
Modem

Al
A2
Bl
B2

VAXcluster Information will be added at the next revision.

*
**

Implementation is optional.
Install adapter 17-01337-01 at the PC38N VAX Console Remote
Port. (It can be installed, optionally, at RSC connector A2.)

Figure 1-8

EIA Cable Connections

1-14

STEP 12
Determine the data rate at which the modem will operate. This
will be typically 1200 b/s (but could be 300 b/s) for CSC
operations. Set the RSC modem data rate switches (BAUD M) to. that
rate (see Figure 1-9).
STEP 13
Determine the data rate at which the CPU console terminal is
operating (use the SETUP key). Set the RSC terminal data rate
switches (BAUD T) to that rate. Note that the local terminal must
be set up for 8 Bit, No Par~ty operation.

+---------------------------------------------------------------+
I VAX/PC38N NOTE
The VAX Console Remote Port is.not a traditional console
terminal port; it is a modem control port. Set the BAUD T
switches to 1200 b/s. You will set the VAX Console Remote
Port to 1200 b/s in Step 14.

BAUD M

BAUD T

((((((0
SET RSC DATA RATE SWITCHES
TO THE SAME DATA RATE AS THE
CONSOLE TERMINAL (BAUD T) AND
THE MODEM (BAUD M)

I l Il Il 300
....c::::L I l l l 1200
_o_ ...c::L _o_
I l l l ....c::::L
2400

·4800

..c::L..
IN _CJ_

Figure 1-9

...c:L
OUT

..c::L

9600

_o_

Data Rate Switches

NOTE
You have completed the hardware installation and, beginning at
Step 14, you will test system operation. Since the VAX/PC38N and
generic systems test procedures are so different, .the following
steps are separated onto opposite pages. A header on each page
indicates which system the page is to be used for.

1-15

GENERIC SYSTEMS TEST
STEP 14

GENERIC SYSTEMS TEST

In this step you will test operation of the CPU Console Terminal port.
o

If the CPU has a LOCAL/REMOTE switch, set it to LOCAL.

Make sure the modem has power. The
should come on.

Plug in the RSC power cord.

Set the RSC keyswitch to
should come on, blinking.

RSC transrni ts the message "(RSC 001) REMOTE PORT ENABLED"
which should be printed on the console terminal.

Use a nearby telephone and dial the number of the telephone
line that is connected to the modern.

The modern DSR and CAR indicators
should hear a carrier tone.

Within 30 seconds, the modern should time-out and drop the
line. You can then hang up the telephone.

RSC transmits the message "(RSC 001) CONNECTION LOST" which
should be printed on the console terminal.

The DSR and CAR indicators should go off but the DTR
indicator will remain on. The message "(RSC 001) REMOTE
PORT ENABLED" should be printed on the console terminal.

STEP 15

modem

REMOTE.

The

should

DTR

indicator

REMOTE

indicator

come

and

you

GENERIC SYSTEMS TEST

In this step you will test the CPU communications port. Note that
RSC can support a comm port but does not require one for its
operation.
o

Set the RSC keyswitch to REMOTE USER.

The REMOTE USER indicator should come on, blinking.

Test the console terminal for normal operation by typing on
the keyboard.

The modem DTR indicator should be on.

Use a nearby telephone and dial the number of the telephone
line that is connected to the modem.

1-16

VAX/PC38N TEST
STEP 14

VAX/PC38N /

RSC PREREQUISITES

In this step you will check to make sure the prerequisites for
RSC operation are present.
Check the VAX Console Communications Set-up Line Characteristics
Menu and see that both Transmit and Receive speeds are set to
match the modem speed and that Connection Type is modem (see the
VAX/PC38N Console User Guide) •

STEP 15

VAX/PC38N SET-UP

At this step you will display the VAX Console set-up, check to
see if the settings are correct for RSC remote operation, then
make any necessary changes.
At the >>> prompt,
following printout:

enter a Show Status command

and get

the

+--------------------------------------------------------------------+
>>>SH S

Printer ENABLED, ONLINE.

Remote Carrier:ABSENT.

Remote
user:ENABLED; console:ENABLED; modem:ENABLED; monitoring:ENABLED
Program Mode settings: LOCAL=OPAO

REMOTE=OPA(4 or 5)

+-------------------------~------------------------------------------+

o Make sure that the printer (the LASO connected to the VAX
console printer port) is enabled.
o Make sure that Remote User, Remote Console, Remote Modem,
and Remote Monitoring are enabled.
o Make sure that the Program Mode settings are as shown. You
may have to change REMOTE to OPA4 or OPAS as required for
remote access. You can ask the local operator to help or
see the VAX Console User Guide for instructions.

1-17

GENERIC SYSTEMS TEST
STEP 15

GENERIC SYSTEMS TEST (Cont)

The modem DSR and CAR indicators
should hear a carrier tone.

should come on and

you

The REMOTE USER indicator should stop blinking and stay on.

o ·within 30 seconds, the modem should time-out and drop the
line. You can then hang up the telephone.
o

The REMOTE USER indicator should begin blinking again.

STEP 16

GENERIC SYSTEMS TEST

In this step you will test for normal use of the system by the
customer.
o

Set the RSC keyswitch to the USER PORT position.

The USER PORT indicator should come on.

Test the console terminal for normal operation by typing on
the keyboard.

If the customer has a communications port application that
uses the modem and telephone line, ask the local operator
to:
a. Check system comm port setup to make sure that either
"modem" or "modem/perm" is set. If "no modem" is set,
the test in b. and c. will fail.
b. The modem DTR indicator (if it has one) should be on.
c. Test comm port operation (by having a user log into the
system through the modem). Log out before continuing to
the next step.

STEP 17

GENERIC SYSTEMS TEST

In this step you will test the RSC LOCKOUT function. When the
keyswitch is set to LOCKOUT, RSC does not allow remote access to
the system.
o

Set the RSC keyswitch to the LOCKOUT position.

The LOCKOUT indicator should come on.

Test the console terminal for normal operation by typing on
the keyboard.
1-18

VAX/PC38N TEST
STEP 16

VAX CONSOLE PRINTER TEST

In some circumstances the VAX Console printer may be enabled, but
may not print.
o

Make sure that PRINTER is ENABLED and enter a Show Status
command.

If the status report was printed on the LASO, you can skip
to Step 17. If it was not, toggle the printer from ON LINE
to OFF LINE to ON LINE. This should restore printer
operation.

Enter another Show Status command and make sure that it is
displayed on the VAX Console screen and also printed on the
printer.

STEP 17

VAX/PC38N /

RSC PRELIMINARY TEST

In this step you will do a preliminary test of the telephone line
and modem before you ask the CSC to do their testing.
o

Make sure the modem has power.

Plug in the RSC power cord. The POWER indicator should come
on.

Set the RSC keyswitch to
should come on, blinking.

RSC transmits the message "(RSC 001) REMOTE PORT ENABLED"
which should be printed on the (optional) hardcopy terminal
connected to RSC at Al.

The modem DTR indicator should come on.

Use a nearby telephone and dial the number of the telephone
line that is connected to the modem.

The modem DSR and CAR indicators
should hear a carrier tone.

The VAX Console and the LASO pr inter should display
message "WARNING. REMOTE CONNECTION ESTABLISHED.

Within 30 seconds, the modem should time-out and drop the
line. You can then hang up the telephone.

REMOTE.

1-19

The

should

REMOTE

indicator

come on

and you
the

GENERIC SYSTEMS TEST
STEP 17

GENERIC SYSTEMS TEST (Cont)

The modem DTR indicator should be off.

Use a nearby telephone and dial the number of the telephone
line that is connected to the modem.

You should hear a ring signal continuously,
should not respond.

After about 20 seconds you can hang up the telephone.

STEP 18

but the modem

GENERIC SYSTEMS TEST

Call the CSC and ask them to do remote testing to verify that the
RSC installation is working correctly.
Digital ships most modems with option settings that let the
CSC connect to RSC. If they find some incompatibility, they may
ask you to change option settings.

NOTE
There are no steps 19 through 21 in the
Generic Systems Test procedure. Skip now
to Step 22 on page 1-23.

1-20

VAX/PC38N TEST
STEP 17

VAX/PC38N /

RSC PRELIMINARY TEST (Cont)

The message "(RSC 001) CONNECTION LOST" should be printed
on the (optional) hardcopy terminal connected to RSC at Al.

The DSR and CAR indicators should go off but the DTR
indicator should remain on. The message "(RSC 001) REMOTE
PORT ENABLED" should be printed on the (optional) hardcopy
~erminal connected to RSC at Al.

The VAX Console and the LASO printer should
message "WARNING. REMOTE CONNECTION BROKEN.

STEP 18

VAX/PC38N /

display

the

RSC (REMOTE) CSC TEST

Call the CSC and ask them to test system operation. You can watch
the VAX Console screen or the LASO printer as the CSC does the
testing. Some of the tests they will do are:
NOTE
Digital ships most modems with option
settings that let the CSC connect to RSC.
If they find some incompatibility, they
may ask you to change option settings.
o

Dial in and make a logical connection. The VAX Console and
the LASO printer should display the message "WARNING.
REMOTE CONNECTION ESTABLISHED.

Enter the Show Status command and verify that the VAX
Console has been set up for RSC operation. If there are
configuration errors, the CSC can make the corrections
remotely.

Enter the Set Terminal Program (SET TERM P) command then,
at the Username prompt, log in using the assigned account
user name and password.

Enter a DIR command for a basic communications test.

Read the LOGFILE for OPAO (SH Lat the<<< prompt) to
determine that remote port I/O activity is being monitored.
Do an RHM (Remote Hardware Monitoring) installation and an
RFT (Remote File Transfer).

Note that Digital ships most modems with option settings that let
the CSC connect to RSC. If they find some incompatibility, they
may ask you to change option settings.

1-21

VAX/PC38N TEST
STEP 19

VAX/PC38N /

RSC REMOTE USER TEST

If the VAX/PC38N system has a communications port, you will test
it in Steps 19 and 20. Skip to Step 21 if there is no comm port.
In this step you will test the RSC Remote User function.
o

Set the RSC Keyswitch to the REMOTE USER position.

The CSC will make a connection to the system using DDCMP
protocol. (Note that RSC supplies DTR.)

The CSC will log in with P I/O access only.

They will verify that they can do an RFT then log out.

STEP 20

VAX/PC38N /

RSC USER PORT TEST

In this step you will test the RSC User Port function.
o

Set the RSC Keyswitch to the User Port position.

The CSC will make a non-protocol connection to the system.
(Note that the comm port software must supply DTR; make
sure "modem" or modem/perm" is set) •

The CSC will log in to the system as a user, verify that
they can do an RFT, then log out.

STEP 21

VAX/PC38N /

RSC LOCKOUT TEST

In this step you will test to make sure the RSC does not allow
remote access to the system through the RSC's modem port.
o

Set the RSC Keyswitch to the LOCKOUT position.

The LOCKOUT indicator should come on.

The modem DTR indicator should be off.

You can ask the CSC to attempt remote access or you can do
it yourself. Use a nearby telephone and dial the number of
the telephone line that is connected to the modem.

You should hear a ring signal, but the modem should not
respond. After about 20 seconds you can hang up the phone.

1-22

STEP 22

ALL SYSTEMS TEST

You can now return control of the system to the local operator.
STEP 23
Give the RSC User Guide, EK-KCRSC-UG, to the appropriate customer
representative and explain how the guide is to be used.
Insert the second RSC User Guide, EK-KCRSC-SM
Management Guide binder behind the "R/D" tab.

into

the Site

STEP 24
Ask a customer-authorized representative to sign the Field
Transaction Report Form, EN-01748-12. A copy of that form is
provided in Figure 1-10.

YOU HAVE COMPLETED THE INSTALLATION

1-23

mnmoamnTM REMOTE SERVICES CONSOLE - FIELD TRANSACTION REPORT
(Use this form to report only one RSC transaction)
CUSTOMER/SYSTEM IDENTIFICATION

Company

Addrsss
City

lip Code

Stats

Remote Services Console used on:
ComJJuter Sy_stem T.1J!.!:

Serm_ Number:

ACKNOWLEDGEMENT OF INITIAL RSC INSTALLATION

I, the undersigned authorized representative of the company named above, acknowledge receipt of a Remote Services
Console IMDS011.
I recognize that this Remote Services Console is proprietary equipment of, and always remains the exclusive property o.f,
Digital Equipment Corporation. I accept this Remote Services Console in confidence and agree not to remove or tamper
with any part of it, nor to disclose or make any part of it available to a third party.
I further acknowledge that I will allow Digital full and free access to replace or remove the Remote Services Console
and to restore the system to its original configuration upon expiration of the system warranty or termination of the
Digital Service Agreement.

MDS01 Serial Number

----------------------~--~-----

Date

ACKNOWLEDEMENT OF RSC REMOVAL BY DIGITAL

I, the undersigned Digital representative, acknowledge receipt of a Remote Services Console unit removed from the
customer system identified above.

MOS01 Serial Number

---------------------------------

Date

ACKNOWLEDGEMENT OF RSC UNIT EXCHANGE

We, the undersigned representatives of Digital and of the company named above, acknowledge an exchange involving
two Remote Services Consoles.

MOS01 Removed -

Serial Number

MDS01 Installed -

Serial Number

~--~--~------------------~----------~~--------~---

Date
Date

Digital Representative's Name (Printed)
Digital Representative's Signature
Customer Representative's Name ( P r i n t e d ) - - - - - - - - - - - - - - - - - - - - - - - - - - Title
Customer's Representative's Signature
EN·O 1748· 12·"8eO 17PG>

Figure 1-10

WHITE • CUSTOMER

Field Transaction Report
1-24

CANARY • BRANCH

PINK • OOC

1.3
If

REMOVING THE RSC UNIT
you have not done an installation, go back and
chapter so you will know what was done and why.

read

all

th~s

STEP 1
Arrange with the customer for access to the system. Make sure
there are no known problems which the customer might assume were
caused
by removing
RSC.
You
will
be
changing
I/O
cable
connections, but you will not need to shut down the system.
NOTE
If the customer's system is running, do not
disconnect power to the RSC until you have
disconnected the I/O cables. Spurious noise
at the console terminal or CPU console port
could disturb system operation.
Leave ac power applied to the RSC unit as you
do Steps 2 and 3.
STEP 2
Disconnect the cables from RSC connectors Al and A2. Connect the
BC22D cable from the CPU Console Terminal port to the Console
Terminal.
STEP 3
Disconnect the cables (if they are present) from RSC connectors
Bl and B2. Use a BC22E or BC22F cable to connect the modem to the
CPU comm port.
STEP 4
Disconnect the RSC power cord.
STEP 5
Have the customer test the console terminal (or the VAX 8800
console), and communications port (if implemented) for normaL
operation.
STEP 6
Prepare a Field Transaction Report form, signed both by the
customer's representative and yourself. The customer's copy will
be a receipt acknowledging that Digital has taken posession of
the RSC unit.
STEP 7
Pack the option components in a suitable shipping container.

1-25

CHAPTER 2
OPERATION
2.1

INTRODUCTION

This chapter tells you how to use the the RSC for both the
customer's
normal
operation
and
Digital's
remote
services
delivery. The RSC unit operates continuously and needs no routine
maintenance. There are no switches or adjustments inside the
enclosure. When the RSC logic is not busy, it runs a self-test
program to ensure reliable operation.
2.2

SUMMARY OF OPERATION

This paragraph gives a summary of the steps you take to operate a
system with an RSC.
First, four tables summarize operator information such as system
set up for:
o

Generic systems such as VAX-11/780, Table 2-1,

Table 2-2 will provide VAXcluster systems information,

VAX systems with PC38N consoles,
Figure 2-1).

Tables

2-3 and

2-4

(and

Second, there are two figures that show the logical data paths
for each of the RSC modes of operation (Figures 2-2 and 2-3) •
Then
the
paragraphs
that
follow
explanations of the summary steps.

2-1

provide

detailed

Table 2-1

Generic Systems Operator Information

REMOTE SERVICES CONSOLE (RSC)

GENERIC SYSTEM

POWER indicator must be ON,
FAULT indicator must be OFF.

The local terminal must be
8-Bit, No Parity operation.

Set BAUD M switches to
data rate as the modem.

Set BAUD T switches to same data rate
as the local console terminal.

same

set

for

REMOTE Keyswitch Position

CPU LOCAL/REMOTE keyswitch must be set
to LOCAL.

REMOTE indicator blinks when
the remote station is not
logically connected.

Remote station terminal or host system
replaces the local console terminal.

RSC gives the remote station
control of the target system
when the local opera tor sets
the RSC keyswitch to REMOTE.
RSC Local Copy forces console
terminal to print a record of
remote I/O activity.

DDCMP Protocol is enabled
data integrity.

to ensure

Terminal
messages
tell
you
about
remote station activity and status.
RSC disables the CPU Comm Port.
When the RSC keyswitch is set to
REMOTE, you can boot the system from
the local console terminal only when
the remote. station enables parallel
control (GIVE).

REMOTE USER Keyswitch Position

CPU LOCAL/REMOTE keyswitch must be set
to LOCAL.

REMOTE USER indicator blinks
when the remote station is
not logically connected.

Local console terminal
normal.

RSC can support a comm port,
but does not require it.

RSC
al lows
remote
access
to
the
operating system through the CPU Comm
Port with DDCMP protocol.

USER PORT Keyswitch Position

Enable CPU Comm Port software for
"Modem on"/"modern perm"
if modem
dial-in capability is required.

RSC is transparent. All system
operation is normal.

operation is

System operation is normal.
LOCKOUT Keyswitch Position
RSC disables all remote access
through its modem port.

No remote
port.

access

through

System operation is normal.
2-2

RSC modem

Table 2-2

VAXcluster Operator Information

THIS PAGE IS RESERVED FOR VAXcluster INFORMATION
WHICH WAS NOT AVAILABLE PRIOR TO THE
PUBLICATION DATE OF THIS MANUAL

2-3

Table 2-3

Local VAX/PC38N Console Operator Information

REMOTE SERVICES CONSOLE (RSC)

VAX/PC38N SYSTEM

POWER indicator must be ON,
FAULT indicator must be OFF.
Set BAUD M switches to same
data rate as the modem.

Set BAUD T switches to same data rate
as the remote port.

REMOTE Keyswitch Position

Enable Remote User (EN R U) and/or
Disable Remote Console (DIS R C) if
the remote station is to have only
PI/O user mode access. This is the
traditional Remote Disable mode.

REMOTE indicator blinks when
the remote station is not
logically connected.
RSC gives the remote station
control of the target system
when
the
local
operator
enables remote access.
DDCMP protocol is enabled to
ensure data integrity.
RSC Local Copy is redundant
with VAX/PC38N if optional
print/display
terminal
is
connected to RSC at Al.

Enable Remote Console (EN R C) enables
CI/O and PI/O. Remote station can
disable remote console to do RHM as a
user (cannot re-enable it remotely).
Disable Remote Modem
(DIS R M) (RSC
controls the modem). Note that the
modem is not actually disabled; see
VAX Console user documentation.
Enable Remote Monitoring (EN R MON) to
display remote station I/O activity at
the VAX Console.
Enable Printer
(EN P)
(VAX Console
LASO) for hardcopy of remote station
I/O activity.
Remote Carrier status will be re_ported.

REMOTE USER Keyswitch Position

VAX Console operation is normal.

REMOTE USER indicator blinks
when the remote station is
not logically connected.

If the CPU comm port is implemented,
the remote station has access to VMS,
not the VAX Console.

RSC allows remote access to
VMS through the CPU comm port
with DDCMP protocol. RSC can
support a comm port, but does
not re_g_uire it.
USER PORT Keyswitch Position
RSC is transparent. All system
operation is normal.

If the CPU comm port is implemented,
the remote station has access to VMS
without protocol.
Enable CPU Comm Port
software for
"Modem
on"/ "modem
perm"
if
modem
dial-in ca~ability is reguired.

LOCKOUT Keyswitch Position

No RSC modem port remote access.

RSC disables all remote access
through its modem port.

System operation is normal otherwise.

2-4

Table 2-4

Remote Station (Host) Commands to VAX/PC38N

COMMAND

IN P I/O
MODE
( $ PROMPT)

IN C I/O
MODE
(>>> PROMPT)

FUNCTION

ENABLE OR DISABLE
REMOTE MONITORING
(EN R MON) (DIS R MON)

Yes

Enable to display remote
station I/O activity on
the VAX Console screen.

ENABLE OR DISABLE
LOCAL COPY
(COPY ON) (COPY OFF)

Yes

Enables/disables optional
display/printer if one is.
connected to RSC at Al.
(Enable for customer
record of remote station
I/O activity.)

ENABLE LOCAL PRINTER
DISABLE LOCAL PRINTER
( EN P) (DIS P)

No
No

Yes
No

Enables the local printer
(LASO connected to VAX
Console printer port) to
provide a hardcopy record
of remote station I/O
activity.

(!) Remote station
can SEND a message
to the target system
operator with no
return message
expected.

Yes (!)

Yes ( ! )

An exclamation mark ( ! )
preceding the message
causes the message to be
printed/displayed at the
VAX Console and prevents
it being seen by VMS.

(!) Remote Station
and local operator
can TALK to each
other at their
terminals.

(!) required as noted
Yes (!)
Yes
Two-way. Two-way,
above.
OPAO and the
Remote
Station
are at the
>>> prompt.

ENABLE OR DISABLE
LOCAL VAX CONSOLE
(OPAO)
(EN LO C) (DIS LO C)

GIVE

Existing GIVE function (parallel control)
replaced by ENABLE LOCAL CONSOLE command.

Yes

2-5

Disable prevents local
operator interrupting
remote operations. Enable
gives parallel control.

>>>SH S
Printer ENABLED, ONLINE. Remote Carrier:ABSENT.
emote user:ENABLED; console:ENABLED; modem:ENABLED; monitoring:ENABLED
Program Mode settings: LOCAL=OPAO
REMOTE=OPA(4 or 5)

(These are Remote User, Remote Console, Remote Modem, and
Remote Monitoring in Table 2-3. Note that Remote Carrier will
be PRESENT when a remote logical connection is established.)

Figure 2-1 Typical Printout For VAX/PC38N Console "Show Status"

2-6

REMOTE
SERVICES
CONSOLE
COMM
PORT

-= = =
KEYSWITCH

MODEM

CPU
CONSOLE
TERMINAL
PORT

REMOTE
STATION

11
11

CONSOLE
TERMINAL

====~

REMOTE
SERVICES
CONSOLE
COMM
PORT

KEYSWITCH

---MICRO
PROCESSOR

MODEM

CPU
CONSOLE
TERMINAL 111 ,,..._"'lAt
PORT

REMO fE
STATION

LOCKOUT
CONSOLE
TERMINAL

KEYSWITCH
POSITION

INDICATOR

FUNCTION

• REMOTE

Blinks until RSC makes a
logical connection to
. the remote station, then
It stays on.

Remote station is logically
connected as console terminal.
DDCMP protocol is enabled to
ensure data integrity. The comm
port is logically disconnected.

• LOCKOUT

Shows that keyswitch is
in LOCKOUT position.

No remote access through RSC
modem port. Console terminal
operation is normal.

Figure

2~2

Keyswitch Positions REMOTE and LOCKOUT
2-7

REMOTE SERVICES
CONSOLE

COMM
PORT

KEYSWITCH
c::J

,,.

MODEM

CPU

CONSOLE
TERMINAL
PORT

REMOrE
STATION

CONSOLE
TERMINAL

REMOTE
SERVICES
CONSOLE

COMM
PORT.

MODEM

CPU
KEYSWITCH
CONSOLE
TERMINAL
PORT

REMOTE
STATION

CONSOLE
TERMINAL

KEYSWITCH
POSITION

INDICATOR

FUNCTION

• USER PORT

Shows that keyswitch is
in USER PORT position.

RSC is transparent. Console
terminal operation is normal.
Comm port and modem operation
ore normal (no protocol).

B,links until RSC makes a
logical connection to
the remote station, then
it stays on.

Remote station can access comm
port with protocol.
Console terminal operation is
normal.

'•

• REMOTE USER

Figure 2-3

Keyswitch Positions USER PORT and REMOTE USER
2-8

Table 2-5

Other Switches and Indicators

+--------------------------------------------------------------------+
I SWITCH
I INDICATOR
I FUNCTION
I
+--------------------+-------------------+---------------------------+
LOCAL COPY
Shows that the
Forces the local console

keyswitch is set
to REMOTE and the
LOCAL COPY switch
is ON.

terminal or other print/
display terminal to print
or display a record of all
remote console I/O
activity.

+--------------------+-------------------+---------------------------+
DATA RATE SWITCHES
There is no
Used to set RSC interfaces
indicator.

to same data rates as
local console terminal
and modem.

+--------------------+-------------------+---------------------------+
There is no power
POWER - (Green)
Shows that AC power is
switch; RSC runs
continuously.

ON.

+--------------------+-------------------+---------------------------+
FAULT - (Red)
Shows RSC failure if it
stays on after the onesecond self-test at
I power up.

+--------------------+-------------------+---------------------------+
2.3

POWER INDICATOR

The POWER indicator comes on when the RSC unit is plugged in;
there is no power switch. The indicator tells you that the RSC
unit has ac power applied.
2.4

FAULT INDICATOR

The FAULT indicator comes on when the RSC unit is plugged in. It
stays on for about one second to show that the RSC power-up
self-test is running. When the test is finished and there is no
fault, the indicator goes off. If the test finds a fault the
indicator stays on.
The RSC logic runs a self-test program continuously when the unit
is not busy and turns on the FAULT indicator if it finds a fault.

2-9

2.5

DATA RATE SWITCHES

Since RSC is a data path switch, it must operate at the same data
rate as the I/O devices that are connected to it. RSC has front
panel switches for setting the data rate of each of its two
paired interfaces ( 4 ports). There are three switches labeled
BAUD T and three labeled BAUD M. Figure 2-4 shows you how to set
the switches for data rates of 300, 1200, 2400, 4800, and 9600
b/s.
1

BAUD T

BAUD M

( f ( II ( I7

SET RSC DATA RATE SWITCHES
TO THE SAME DATA RATE AS THE
CONSOLE TERMINAL (BAUD T) ANO
THE MODEM (BAUD Mt.

Figure 2-4

Data Rate Switches

Il n
..c::L Il I l
Il ..c::L l l
n _o_ .J:J..
.c:::::L

..c::::J... ...c::L..

IN _CJ..

ouTil

300

1200
2400
4800

9600

For example, if the console terminal is operating at 9600 b/s,
you must set the BAUD T data rate switches to 9600. The chart
shows that the three switches must be latched in. If the modem is
operating a 1200 b/s, you set the BAUD M data rate switches to
1200 b/s also, switch 1 latched in, switches 2 and 3 out.
+-----------------------------------------------------~---------+

VAX/PC38N NOTE

The VAX Console Remote Port is not a traditional console
terminal port; it is a modern control port. Set the BAUD T
switches to the same rate as the VAX Console Remote Port.

2.6

KEYSWITCH

The keyswitch controls the RSC's modes of operation. Figures 2-2
and 2-3 show the logical data paths for each keyswitch position.
An operator can control remote access to the customer's system,
either with or without protocol, or can prevent all remote access
through the RSC modem port. By removing the key from the switch
(only in the LOCKOUT and USER PORT positions), the operator can
prevent anyone without a key from changing the setting, giving an
added level of security.
2-10

There is an indicator for each of the four positions of the
keyswitch. The indicator comes on to show the keyswitch setting.
The two remote indicators blink to show RSC remote access status
as explained in the following paragraphs.
2.6.l

REMOTE

The local operator sets the keyswitch to REMOTE to give a remote
station (terminal or host) control of the system. DDCMP protocol
is enabled to ensure data integrity. RSC logically connects the
remote station to function as the system console terminal. Al 1
functions normally done by the local console terminal can be done
from the remote station. The local console terminal can be
enabled by either the remote operator or local operator to print
a record of remote console terminal I/O activity (Paragraph 2.8).
The local keyboard is normally disabled to prevent interruption
of remote operation but it is enabled when the remote station
invokes Talk or Parallel Control mode.
The REMOTE indicator comes on, blinking, when the keyswitch is
turned to the REMOTE position. The blinking shows that the RSC
logic is enabled and waiting for a remote logical connection. The
console message (RSC 001) REMOTE PORT EN~.. BLED is printed on the
cons o 1 e
term i n a 1
( Par a graph
2•7) •
When
the
connect i on
is
established, the indicator stops blinking (it stays on).

+---------------------------------------------------------------+
VAX/PC38N NOTE
I
If, after the remote station connection is established, the
operator disables the VAX Console Remote Port, all efforts
made at the console keyboard to re-enable the port and
establish the logical connection again will be unsuccessful.
Both the telephone connection and the modem will appear to
be normal.
The remote station must break, then re-make the connection
after the VAX Console Remote Port has been re-enabled.

I
+---------------------------------------------------------------+
2.6.2

LOCKOUT

The local operator can set the keyswitch to LOCKOUT (Figure 2-2)
to prevent all remote access to the system through the RSC modern
port. The local console terminal operates normally, but the comm
port is logically disabled by RSC. The Lockout function may be a
security requirement for a customer's system. If the keyswi tch
Lockout function is working correctly, the modem's DTR signal is

2-11

inhibited and the LOCKOUT indicator comes on. If the keyswitch is
set to LOCKOUT and the indicator does NOT come on, RSC design
provides two levels of security:
FIRST - it warns the operator
remote access may be possible.

that

there

fault

and

SECOND - the RSC logic defaults to USER PORT functionality
which means any possible remote access will be limited to
the CPU comm port with no access to the console terminal
port.
2.6.3

USER PORT

The local operator can disable remote protocol access to the
system by setting the keyswitch to USER PORT (Figure 2-3). A LED
indicator comes on to show this keyswitch position. With the
keyswitch set to USER PORT, RSC is logically transparent and the
local console terminal functions normally. When a communications
port application is using the modem and telephone line, that
operation is normal also (no protocol).
2.6.4

REMOTE USER

The local operator sets the keyswi tch to REMOTE USER to let a
remote station, using DDCMP protocol, log in to the system
through the communications port. Note that local console terminal
operation is normal (Figure 2-3).
The REMOTE USER indicator comes on, blinking, when the keyswitch
is turned to the REMOTE USER position. The blinking shows that
the RSC logic is enabled and waiting for a remote logical
connection. When the connection is established, the indicator
stops blinking (it stays on).
2.7

CONSOLE TERMINAL MESSAGES

RSC logic senses changes in remote access status and transmits
messages that can be displayed or printed on the local console
terminal. These messages tell the local operator when the remote
station is making or breaking connection to the system. The
messages appear only when the RSC keyswitch is set to the REMOTE
position.
In
VAXclusters
and
VAX/PC38N
systems,
hardcopy
terminals for this purpose are optional and may not be present to
display or print these messages.

2-12

(RSC 001) REMOTE PORT ENABLED
This message is transmitted by RSC immediately after the
keyswitch is turned to the REMOTE position. Unless the RSC
TERMINAL DATA RATE switches are set to match the data rate
of the local console terminal, the message will be garbled.
(See Paragraph 2.8.)

(RSC 001) CONNECTION LOST
This message
is
transmitted
when
the
remote
station
terminates
the
telephone connection
(hangs up).
This
message can be transmitted also as a result of a hardware
failure or loose connection, for example.

+---------------------------------------------------------------+
VAX/PC38N NOTE
The VAX Console can display similar messages for the local
operator when it is set up to detect a remote connection.

+---------------------------------------------------------------+
2.8

LOCAL COPY SWITCH

When the local operator sets the RSC keyswitch to REMOTE, control
of the system is given to a remote station. When the remote
station is the CSC, the host software usually disables the target
system console terminal. The customer may want to display or
print a record of what the remote station does while it has
control of the system. A record of that I/O activity is displayed
or printed when:
o

The CSC invokes Local Copy mode (in RSC firmware), or

The local operator sets the RSC LOCAL COPY switch ON, and

A hardcopy or display terminal has been provided
purpose.

for

that

To summarize RSC's Local Copy functionality:
o

The local operator can force local copy by setting the RSC
LOCAL COPY hardware switch.

The CSC can invoke (force)
copy mode in RSC firmware.

Neither the hardware switch nor firmware
override the other to disable local copy.

local copy by setting the local
setting

can

The LOCAL COPY switch and indicator are logically functional only
when the keyswitch is set to REMOTE.
2-13

+--------------------------------------------------~------------+

VAX/PC38N NOTE

Table 2-4 shows that there are three possible configurations
for.t~rminals and/or displays to monitor remote station I/O I
act1v1ty.

+---------------------------------------------------------------+

2-14

CHAPTER 3
TROUBLESHOOTING
3.1

INTRODUCTION

This chapter tells you how to do basic testing of the telephone
line,
the modem, and the RSC unit.
The field maintenance
philosophy for RSC is unit swapping. If you have any problem the
CSC can help you solve it.
3.2

TROUBLESHOOTING PROCEDURES

The
following
paragraphs
describe
the
procedures
for
RSC
troubleshooting. You can do some of them, the CSC must do the
others.
Each procedure stands alone and
should be passed
successfully before going on to the next procedure. Table 3-1 is
a troubleshooting aid.
3.3

CABLE TEST AND RSC BYPASS

If you cannot successfully complete a test and you suspect that
either a cable or the RSC unit itself is at fault, cable patching
is a "quick check". In this procedure you disconnect cables only
at the RSC unit.
o

If you want to bypass RSC and test console terminal
operation, disconnect (at connector Al on the the RSC unit)
the cable that goes to the console terminal. Disconnect
(from RSC connector A2) the cable that goes to the CPU
console terminal port. Plug the two cable connectors into
each other. Console terminal operation should be normal
with RSC out of the circuit.

If you want to bypass RSC and test the communications port,
disconnect (from RSC connector Bl) the cable that goes to
the communications port. Disconnect (from RSC connector B2)
the cable that goes to the modem. Plug the two cable
connectors into each other. Communications port operation
should be normal with RSC out of the circuit.

If the RSC unit should fail, or you want to
temporarily, do both of the previous steps.

3-1

remove it

3.4

POWER-UP TEST

When the RSC unit passes this test, the basic unit is working
correctly. Note that the I/O interfaces are not tested until
Paragraph 3. 5. · The tests can be made with, or with out, I/O cables
connected.

1. Set the RSC keyswitch to USER PORT.
2. Check to make sure that the RSC voltage select switch is
set for the correct operating voltage.
3. Check to make sure that the fuse is good and is the correct
value for the operating voltage.
4. Plug in the ac power cord.
5.

If the POWER indicator does not come on, make sure there is
ac power at the receptacle. If there is, check the power
cord and the RSC fuse (again) • (Installation Step 3 has
information that may help you when you are replacing a
fuse.) If the ac supply, the power cord, and the fuse are
good, (and there is still no RSC power) replace the RSC
unit.

If the POWER
should also.

indicator

comes

on,

the USER

PORT

indicator

7. The FAULT indicator should come on. It should stay on for
about one second while the RSC power-up self-test runs.

If the RSC unit is working correctly, the FAULT indicator
should go out. If the self-test finds a fault, the FAULT
indicator will stay on.

9. If the FAULT indicator stays on, replace the unit.

+----~---~------~----------~------------------------------------+

VAX/PC38N NOTE

If you are working with a VAX/PC38N system, see Tables 2-3
and 2~4 for system set-up information which may help as you
continue RSC testing.

I
+---------------------------------------------------------------+

3-2

3.5

USER PORT TEST

If you can successfully complete this procedure, the RSC console
terminal and communications port I/O interfaces are working
correctly. Note that RSC can support a comm port but does not
require one for its operation.
1. Set the keyswitch to USER PORT.
2. Type on the console terminal keyboard and make sure
operation is normal. RSC should be completely transparent.
3. If the customer has a comm port application, ask the local
operator to log in through the the communications port,
telephone line, and modem. This tests not only the RSC
communications port I/O interface, but also the telephone
line and modem. If this test passes, you can skip Paragraph
3. 6.

3.6

TELEPHONE LINE AND MODEM TEST
1. Change the keyswitch to REMOTE USER or REMOTE.
2. Check the modem to make sure the DTR indicator (if there is
one) is on.
3. From a nearby telephone, dial
line connected to the modem.

the number of

the telephone

4. You should hear a ring signal and the modem ring
should come on.

indicator

5. You should hear a carrier signal. Whistle into the phone at
about the same frequency as the carrier signal. The modem
DSR indicator should come on.
6. Hang up. The modem indicators should go off.
3.7

REMOTE USER TEST

You must have the CSC do this test. It verifies
access through the CPU communications port.

remote protocol

1. Set the keyswitch to REMOTE USER.
2 • The REMOTE US ER ind i cat or
remote access is enabled
logical connection).
3. Type on the console
operation is normal.

should come on, bl inking (RSC
and it is waiting to make a

terminal

3-3

keyboard

and make

sure

that

4. When the CSC makes connection, the
should stop blinking and stay on.

REMOTE

USER

indicator

5. The CSC will log into the system as a user.
3.8

REMOTE TEST

You must have the CSC do this test. It verifies remote protocol
access that allows a remote station to take control of the
system.
1. Set the keyswitch to REMOTE.
2. The ;REMOTE indicator should come on, bl inking (RSC remote
access is enabled and it is waiting to make a logical
connection) •
3. The console terminal should print
REMOTE PORT ENABLED".

the message

4. Check to
disabled.

terminal

see

that

the

console

"(RSC

keyboard

001)
is

5. When the CSC completes the telephone connection, the REMOTE
indicator stops blinking (it stays on).
6. The CSC tests RSC for correct remote operation.
7. When the CSC hangs up, the console terminal prints the
message "(RSC 001) CONNECTION LOST".
8. The REMOTE indicator should start blinking.
9. After a 4 second delay, the console terminal
the message "(RSC 001) REMOTE PORT ENABLED".

3-4

should print

Table 3-1

Troubleshooting Chart

+----------------------+------------------------------------------+
I

SYMPTOM

CAUSE OR ACTION

+----------------------+------------------------------------------+
POWER indicator does
Check ac at receptacle and power cord.
I
not come on.
Check fuse.
I
+----------------------+------------------------------------------+
FAULT indicator
The RSC unit has failed. To bypass a
stays on.

faulty RSC unit, disconnect console
terminal cables from Al and A2 and
patch them together. Disconnect
modem/comm port cables from Bl and B2
and patch them together.

+----------------------+------------------------------------------+
I LOCKOUT indicator
If the RSC Lockout logic fails, the
I
does not come on.

indicator is turned off and RSC
defaults to USER PORT mode.

+----------------------+------------------------------------------+
No remote access.
The CPU LOCAL/REMOTE switch must be
set to LOCAL for RSC operation.
For VAX/PC38N - If the VAX Console
remote port is disabled after the
remote station is connected, it
cannot be re-enabled except by having
the remote station break, then
re-make the connection.

+----------------------+------------------------------------------+
I No USER PORT access I Check modem power and connections.
and no DTR signal at
modem.

CPU Comm Port software may be set to
"no modem".

+----------------------+------------------------------------------+
Printout garbled or
CSC has set Local Copy mode or GIVE
characters printed
twice on terminal.

mode and the RSC LOCAL COPY switch is
also set. This problem has been
resolved in MDSOl units with revisions
of Bl or greater (See Page 2-13)

+----------------------+------------------------------------------+
Printout garbled.
Terminal must be set for 8-bit, no
parity.

+----------------------+------------------------------------------+
CPU will not boot.
If the RSC keyswitch is set to
REMOTE, the local console terminal
is disabled.

+----------------------+------------------------------------------+
3-5

APPENDIX A
USER GUIDE
INTRODUCTION
This appendix is a copy of the RSC User Guide, EK-KCRSC-UG, that
is shipped with the RSC unit. The guide is printed on heavy paper
stock and is intended for use by the customer.
A second RSC User Guide, EK-KCRSC-SM, is also shipped with the
RSC unit. That guide has the same information, but it is printed
on plain paper and is to be inserted into the Site Management
Guide binder behind the "R/D" tab.

A-1

EK-KCRSC-UG-002

. Remote Services Console
User Guide

A-2

LOGICAL DATA PATHS FOR EACH
KEVSWITCH POSITION
REMOTE
SE ~VICES

MODEM

CPU

CONSOLE
TERMINAL ll~--.JI...........,____.___..__.
PORT

REMOTE
STATION

CONSOLE 111~~11TERMINAL

RE'vlOTE
SERVICES
CONSOLE

....------.
M1CRc1
PROCESSOR

CPU
KOSV\ilTCH

REIVlO'E

sr.:.7•0111
LOCKOUT
CONSOLE
TERMllll.l.L

KEYSWITCH
POSITION

INDICATOR

FUNCTION

•

REMOTE

Blinks until RSC makes a
logical connection to
the remote station, then
it stays on.

Remote station is logically
connected as console terminal.
DDCMP protocol is enabled to
ensure data integrity. The comm
port is logically disconnected.

• REMOTE USER

Blinks until RSC makes a
logical connection to
the remote station, then
it stays on.

Remote station can access comm
port with protocol.
Console terminal operation is
normal.

• USER PORT

Shows that keyswitch is
in USER PORT position.

RSC is transparent. Console
terminal operation is normal.
Comm port and modem operation
are normal (no protocol).

• LOCKOUT

Shows that keyswitch is
in LOCKOUT position.

No remote access through RSC
modem port. Console terminal
operation is normal.

A-3

LOGICAL DATA PATHS FOR EACH
KEYSWITCH POSITION
REMOTE SERVICES
CONSOLE

C.\1v1
Pr}Rr

uv--'-1111--1

'.10DE:\/I

·~~~~;..L;L 11~-"IUPQRT

RE!V10'E
STAT;ON

CONSOLE 11._,_"""-'11-'
TEq:\/llNAL

REMOTE
SERVICES
CONSOLE

C:OMM

11 V---".11 t--Z:='-i

PORT

:\/!ODEM

•:CJ<\;SOLE
TERMINAL l l V - " ' ' J I
PORT

REMOTE
STATION

CONSOLE ,,._,_...... ,
rERMINAL

THE OTHER SWITCHES AND INDICATORS
SWITCH

INDICATOR

FUNCTION

LOCAL COPY
SWITCH

Shows that keyswitch is
set to REMOTE and local
copy switch is ON.

Forces local console terminal to
print a record of remote console
terminal 1/0 activity.

DATA RATE
SWITCHES (BAUD T
AND BAUD M)

No indicator

These switches set RSC interfaces
to same data rates as local
console terminal and modem.

No power switch

POWER - Green

Shows that cc power is on.

FAULT- Red

Shows RSC fault if on after one
second self-test at power-up.

A-4

REMOTE SERVICES CONSOLE
USER GUIDE
OPERATION
1. Make sure RSC Data Rate Switches are set correctly..
2. Set RSC keyswitch to select mode of operation.
3. Check the RSC indicators •POWER- on
• FAULT - off
• KEYSWITCH position indicator - on
• LOCAL COPY - on if the RSC keyswitch is set to remote and the
LOCAL COPY switch is latched in.
4. For VAX/PC38N or VAX Cluster - You may have to connect and/or
enable a hardcopy terminal if you want to use LOCAL COPY.
5. For VAX Cluster - You will have to change the Z Box (VCS Disable)
switch setting to disconnect the target CPU from the cluster and
enable a hardcopy terminal.

TO SET DATA RATE SWITCHES
RSC must operate at the same data rate as the console terminal and
modem that are connected to it. The BAUD T and BAUD M switch
settings determine the data rates of those RSC interfaces.

BAUD T

[

BAUD M

z z z z z
I l I I I 0

SET RSC DATA RATE SWITCHES

Il Il Il
...CJ... Ili _o_
_o_ ..0.. . I l
Il_l Ill ..CJ...

300
1200
2400
4800

TO THE SAME DATA RATE AS THE
CONSOLE TERMINAL ,BAUD T1 ANO

..c:J..

THE MOOE\1 BAUO Mi
1

A-5

..c:L

.J::L

..CJ...

OUT

_o_

9600

RSC OPERATION
NOTES
• The key can be removed from the RSC keyswltch when it Is set to
LOCKOUT or USER PORT.
• The CPU LOCAL/REMOTE switch must be set to LOCAL or LOCAL
DISABLE (not a remote position) for RSC operation.
• System setup must specify "modem" or "modem/perm" to
enable RSC remote operation.
• The CPU will not boot if the RSC keyswitch is set to REMOTE. The
console terminal is disabled.
• The LOCAL COPY indicator comes on only when the RSC
keyswltch is set to REMOTE because the local copy logic is not
functional in the other keyswitch positions.
• If the lockout logic fails, the LOCKOUT indicator will not come on
and RSC will default to USER PORT mode.
• To bypass a faulty RSC unit, unplug console terminal cables from
A1 and Ki. and patch them together. The 81/82 cables can be
patched to connect the comm port to the modem.
• For VAX/PC38N - If, after the remote station connection is
established, the operator disables the console remote port, all
efforts made at the console keyboard to re-enable the port and
re-establish the logical connection again will be unsuccessful.
Both the telephone connection and modem operation will
appear to be normal. The remote station must break, then
re-make the connection after the console remote port has been
re-enabled.

A-6

INDEX
A

AC power, 1-2
Accessibility of RSC, 1-3
Adapter,
for VAX/PC38N, 1-1, 1-3, 1-14
B

Baud M/T, see Data Rate switches
BC22D, 1-11
BC22E/BC22F cable, 1-3
installation, 1-14
Booting, 2-2, 3-5
Bypassing a failed RSC, vii, 3-1

EIA connectors, 1-14, 3-1
F

Fault indicator, 2-9, 3-2
FCC modem data, 1-2
Features, vi
Field Transaction Report, 1-18
Fuse, 1-4
G

Generic installation overview, 1-8

c
I

Cable,
BC22D, 1-7, 1-11
BC22E/BC22F, 1-3
configuration table, 1-14
installation, 1-7, 1-11
RSC configuration, 1-12
test, 3-1
type required, 1-3
Certifications, vii
Comm port, 1-2
test, 3-3
"Connection Lost message",
1-16, 2-13
Console terminal, 1-7, 2-2
messages, 1-16, 2-12
Console terminal port, 1-14, 1-15
CPU LOCAL/REMOTE switch, 2-2

Installation,
DDC testing, 1-18
FCC modem data, 1-2
kit contents, 1-3
modem, 1-1, 1-14
procedure, 1-3
removing, 1-20
site preparation, 1-1
K

Key, vii, 2-10
Keyswitch,
operation, 2-2, 2-4, 2-7, 2-10
testing, 1-16, 1-17
Kit contents, 1-3

Data Rate switches,
vii, 1-15, 2-2, 2-4, 2-9
DDC/RDC
installation test, 1-18
user account, 1-7
DDCMP protocol, vi, 2-2, 2-4
DF03/DF112 modem, 1-2
Documentation, viii
RSC User Guide, A-1
Site Management Guide, A-1
DSR/DTR, 1-16

Label, RSC front, 1-5
Local copy, 2-9, 2-13
Lockout Keyswitch position,
operation, 2-2, 2-4, 2-7, 2-11
testing, 1-17
Logical connection, 2-7, 2-11

I-1

INDEX

Messages, .console terminal,
1-16, 2-12
Modem on/perm, no modem
1-17, 2-2, 2-4
data rates, 1-15
DF03/DF112, 1-2
test, 1-15, 3-3
type required, 1-1

Self-test, 1-6, 2-1, 2-9
Site Management Guide, A-1
Site preparation, 1-1
Switch,
data rate, vii, 1-15, 2-9
keyswitch, 2-10
local copy, 2-13
voltage select, 1-4

/no modem, 1-17, 2-2, 2-4

Talk, 2-5
Telephone line, 1-1
test, 3-3
Terminal set-up, 1-15, 2-2
Transaction Report Form, 1-18
Troubleshooting, 3-5

Operator Information
generic systems, 2-2
VAX/PC38N I 2-4

u
p

User account, 1-7
User Guide, 1-18, A-1
User port keyswitch position
operation, 2-2, 2-4, 2-8, 2-12
testing, 1-17, 3-3

PC38N - See VAX/PC38N
Power indicator, 2-9
Protocol, DDCMP, vi, 2-2, 2-4
R

Remote keyswitch position,
operation, 2-2, 2-4, 2-7, 2-11
testing, 1-15, 3-4
Remote diagnosis, vii
"Remote port enabled" message,
1-16, 2-13
Remote services delivery, vi
Remote User keyswitch position,
operation, 2-2, 2-4, 2-8, 2-12
testing, 1-16, 3-3
Removing RSC, 1-20

VAXcluster information will be
added in the next revision.
VAX/PC38N,
adapter, 1-1, 1-3, 1-14
BAUD T switches, 1-15, 2-10
console, 2-4
commands, 2-4
remote port, 1-15, 2-4
installation overview, 1-9
operator information, 2-4, 2-5
Remote Port, 2-11
Voltage Select switch, 1-4

I-2

Digital Equipment Corporation• Stow, MA 01775