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April 1988

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Document:	DSV11-S Communications Option User Guide
Order Number:	EK-DSV11-UG
Revision:	001
Pages:	40
Original Filename:

OCR Text

DSV11 -S Commumcatnons Optnon
User Guade
=
.
OrderNumberEK-DSV11-UG-001

~ digital equipment corporation =
maynard, massachusetts

]

//
#

First Printing; April 1988
The information in this document is subject to change without notice and should
not be construed asa commitment by Digital Equipment Corporation.

Digital Equipment Corporation assumes no responsibility for any errors that may

appear in this document.

The software, if any, described in this document is furnished under a license and mayv

be used or copied only in accordance with the terms of such license. No responsibility
is assumed for the use or reliability of software or equipment that is not supplied by
Digital Equipment Corporation orits affiliated companies.
|
‘
B

All R-igh‘ts»Reserved.
Printed in U.S.A.

The lfol]owing are trademarks of Digital Equipment'Corpbration:
BASEWAY

MicroPDP-11

RSX

BI Bus

Micro/RSTS

DEC

Micro/RSX

ThinWire

DECmate

MicroVAX 11

ULTRIX-32.

DECnet

PDP

DECUS

PIOS

UNIBUS

- VAX

DECwriter

MicroVAX 3500

VAXcluster

DELNI

MicroVAX 3600

VAXELN

DELQA

Professional
Q-bus

VAXstation [I
VAXstation [I'GPX

- DEQNA
DESTA

Q22-bus

VMS

DIBOL

Rainbow

VT
Work Processor

NMASSBUS

RSTS

alifdltali
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 | of

Part 15 of FCC Rules, which are desi%ned to provide reasonable protection against

such radio frequency interference when operated in a commercial environment,
Operatinn of this equipment in a residential area mav cause interference. in v hich
case Lhe user at hls. own expense may be l't-'quirt'd toy take mcasures Loy covreet thy o
interference.

Contents
Preface.

IntfodUction

1.1
1.2

Features of the DSV11 . . . G
Typxca DSV11 Configuratlon e

Connectmg the DSV11 S

S
e e i ae

2.1

Introduction . .............. .'} T

2.2

How to Attach the Adapter and Extension Cabl

Testing the--:lnstallation |

3.1

Preparation ...........

3.2

TestProcedure . ..

... ... ..

A Cables and Accessories
Al

Adapter Cables. ... ...t

ExtensionCables

A.3

Loopback Test Connectors . .

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

General Specifications

B.1

Environmental Conditions

B.2

Electrical Requirements

... ..... e

14
15
16

... ........ Cee

. ...... e PR

)

Contents

Adapter Cable Pin Signals

C.1

Introduction

C.3

RS-422 Adapter Cable: 37-Way Pins . . . . .. .. PR

................. e e .

RS-423 Adapter Cable: 37-Way Pins........ e

C.2

V.35 Adapter Cable: 34-Way Pins . ... .. e e

C.4

C.5
C.6

V.24 Adapter Cable: 25-Way Pins . . ..........
V.24/RS-232-C Adapter Connector: 25-Way Pins

Figures

1-1

C-1
C-2
C-3
C-4
C-5

Typical DSV11 Configuratlon T

SR S e

37-Way D-Type Connector (Male) . ......... PR
37-Way D-Type Connector (Male) ..............
34-Way Square Connector (Male) . ... . ............
25-Way D-Type Connector (Male) . ......... e
25-Way D-Type Connector (Male and Female) ... ...

20
fl

26
28

22
24
26
28
fi

V.35 Pins and Signals . .. ....... ... A

V.24 Pins and Signals . . ... ............ C

V.24 to RS-232-C Pins and Signals . . . . ... ... ...

M)
UV
e
~)
S T AN B
23— On

DSV11-S Electrical Requirements . . . ... ... R
..
RS-423 Pinsand Signals . . . . ... ...
RS-422 Pinsand Signals. ... .. ............. L

DSV11-S Environmental Limits . . . .. SR

NOREN

DSV11 Maximum Line Speeds .......... e
Data Rate/Cable Length Relationships . . . . . .. S

[N I O TN N T

i
'
.
OO OO0'Nn—-‘*—“'—‘

Tables

Preface
'Introductnon
~ This guide tells you how to attach the cables to connect your DSV11S to a modem, modem eliminator, or similar device. For simplicity,
thisguide uses the term modem to refer to all such devices.

Before follox«mg the procedures in this guide, your DSV11-S board

must already be installed.

is installed in the factory.

In the case of a DSV11-SA, the board

In the case of a DSV11-SF, the board

s installed by DIGITAL field service personnel or by

qualified self-

maintenance” customers following the instructions in the DSVII-SF
Commumcatzonc Option Installation Guide.
|

Intended Audience

‘This guide is for anyone insta hng external cables to connect the
DSV11-S to a modem.

Associated Documents
e

DSV11-SF Communications Option Installation Guide (EK- DQ\ 11-IN)

- Tells you how to install the DSV11-S board in a BA200 series
-enclosure.

DSV11 Commumcat:onc Optzon Technical Description (EK- DS’\’11 TD)
Provides a full description of the DSVl dewce detailmg all
DSV11 features and facxhtles

Preface

Structure of this Guide -

The guide is divided into three chapters and three appendixes:
Chapter 1 — Introduces and describes the DSV11,
Chapter 2 — Describes how to connect the DSV11-S to a modem.

Chapter 3 — Provides tests to check the cable installation.
Appendix A — Lists DSV11 cables and accessories.

Appendix B — Provides the general specifications of the DSVII.
Appendix C — Illustrates and describes the adapter cable pin
signals.

1
) ntroduction
- This chapter introduces you to the ma]or features of the DSVll and |

‘shows a ty pical DSV 11 confxguratlon |

1.1 Features of the DSV11
The

Dsvil

is a two- channel h1 h-speed synchronous communications option
for use on MicroVAX

1l and BA200 series Q bus backplanes hete

are two variants of the DSV11:

e DSV11-M for MicroVAX enclosures
e

DSV11-S for BA200 series enclosures

The major features of the DSVI11 are descrxbed in the remainder of

thxs section.
NOTE

The DSV11-S will not operate unless you install the approprxate
device drner kit on your system:

For version V4.7 of VMS mstall the VAX DSV11 De\ice Drn er
kit

For versions of VMS later than V47, mstall the VAX WAN
Device Drivers kit

The DSV11 supports the followmg sxnchronous commumcatlons
L

protocols:

DDCMP

HDLC/SDLC

BISYNC

The maximum line speed available depends upon the protocnl
selected and the number of lines you wish to use. Notc thal you
can run a different protocol on each of the lines. Table 1-1 showethe

Introduction

maximum line speeds available. For the specific line speeds supported
by vour system, refer to your networking software documentation.

Table 1-1

DSV11 Maximum Line Speeds

Protocol

DDCMP

HDLC/SDLC

BISYNC

1 Line

2 Lines

(bits's)

(bitsis)

256K

4K
64K

256K

96K

192K

NOTE

Maximum line speeds can be limited by the length of cable between

- the DSV11 and the modem. Chapter 2 provides details.

" To connect your system to the outside world, the DSV11 allows you
to use any of the following synchronous interfaces:

RS-423

RS-422

RS-232/V.24

V.35

The DSV11 also offers these features:

~* DMA data tr'ansfer
e

Full and half duplex operation

Full modem control

NRZ and NRZI data encoding

If you want to know more about the DSV11, the D3VII
Communications Option Technical Description (EK-DSV11-TD) contains
detailed information on DSV11 features and facilities. The DSVII
Communications Option Technical Description is available from DIGITAL
as a separately orderable item.

Intradurtine

1.2 Typical DSV11 Configuration
Figure 1-1 illustrates a typical DSV11 confifiurati’on, showing the

- general layvout of hardware and cables in t e link between your
svstem and the outside world.

CPU Cabinet

DSvi1

Board
B

‘Adapter

Cable

—8

Modem

Network

Extension

- Cable
385139

Figure 1-1 | Typical DSV 11 Configukatioh

2
Connecting the DSV11-S

This chapter describes how to connect the DSV11-S to a modem.

This involves attaching the adapter and extension cables.

2.1 Introduction
The DSV11-S board includes two 50-way connectors that remain
prominent after the board is installed.
You use these connectors to
attach the cables connecting your DSV11-S to a modem (how to do

this is shown in Section 2.7).

The 50-way connectors can provide signals for any of the DSV11-5
supported interfaces. To make the 5U-way output suitable for a

specific interface, you have to use an interface-specific adapter cable.
rom the range of signals fi‘ro’vided by the 50-way connector, the
adapter cable selects only those required by the interface protocol.
For example, you must use a V.35 adapter cable to be able to send
data using the V.35 interface.
|
|

At one end, an adapter cable has a 50-way plug which attaches to
the DSV11-S.
At the modem end, the adapter cable has the interface
standard connector. So, for example, at the modem end of the V.24
adapter cable is the standard V.24 25-way connector. Section A.1l
lists the adapter cables and their type numbers and Appendix C
illustrates and lists the signals associated with the modem end of
each adapter cable.
|

Adapter cables are only 0.6 m (24 inches) long.

You need an

additional length of cable to complete the connection to a modem.
Extension cables are used to connect the modem end of the adapter
cable to the modem itself. Section A.2 lists the extension cables and
their type numbers.

When you plan the length of cable between the DSV11-S and the
modem, please note that the maximum data throughput
vou can

achieve reduces with distance. Table 2-1 lists maximum cable lencths

for a number of data rates using the DSV11-5 supported interfaces.

Connecting the DSV11 S

Use this table to check that your cable run is not too long for the
data rate you require.

NOTE

The CCITT V.35 recommendation specifies a maximum line speed
of 48K bits/s. However, with the DSV11-S you can use the V.35

interface at higher speeds, as shown in Table 2-1.

‘

Table 2-1 Data Rate/Cable Length Relationships
Maximum Cable Length |
Data Rate (bitsi's) =~
Line Protocol

V24/RS-232-C
RS-423
R

15m(50fy)
f)
1200m (3900

Upto20K
BelowlK

206
48K

400m(1300f)

160 m (300 ft)

64K

:
RS-422
|
|

vi3s

|
~

100K
Below90K

128K
256K

256K

130 m (400 ft)

85m (2701
ft)
1200 m (3900
80
-

ft)
m (2600
400 m (1300 £t

60m (200

Section 2.2 describes the stepé involved in atfaching the adapter and.

- extension cables to connect your DSV11-5 to the modem.

Cnnnacting the NSV11.S

2.2 How to Attach the Adapter and Exterm'm

- Cables

Step 1: Connect the Adapter Cable to the SO-Wa'y Conn'ector

RES213

Connecting the NDSV11 S

Step 2: Connect the Adapter Cab_le to the Extension Cable

Agapter cabie

(/';

Extension cabe

Cornnecting
the DSV11.S

Step 3: Connect the Extension Cabls to the Modem
-

Tighten screws

the NSV11 S
- Connecting

- Step 4: Check All Connections Are Complete

Extension
Cable

Adapter
Cabie

REBIV4

10 Connecting tha DSV11.S

Step 5: Test the Installatlon

‘Now that your D5V11- S is connected to the modem please follow
the instructions in Chapter 3.

the Network Control Program(

Ch
IEter 3 tells you how to use

to check that the cables are

connected correctly and that your DS\ 11-5 system is operational.

3
Testing the
Installa

tion

This chapter describes basic checks to ensure that the cables between
the DSV11-S and the modem have been attached correctly.

3.1 Preparation'

Before running these tests:

1. Install either the DSV11 Device Driver kit (for VMS V4, 7) or the
'VMS WAN Device Drivers kxt (for versions of VMS later than
V4.7) on your system.

2. Install, configure, and start the networkmg softw are (for example
VAX P.S.1.) on your system.

3. Login to the SY STEM account.
If vou are gomg to use either a DECnet or an X.25 network, also

start NCP by enteung the followmg command:
S

RUN SYSSSYSTEM: N"P

NCP>

3.2 Test Procedure
This section details three basic tests to check that the cablmg between
yvour DSV11-S and the modem is sound. Use the test appropriate to
the communications protocol your network uses:

DDCMP (Test 1)

HDLC/SDLC (Test2)

& BISYNC (Test 3)

Tests 1 and 2 use NCPD to

exfmm loopback tests on a DF(‘npt circuit

or on an X.25 line. Test gasks vou to perform one of vour veual

tasks usm% the remote application. Successful completion of a test

| mdxcates t 1at the basic cabling between the DSV 1]

and the modem

Tesfingthalnsnflhfinn
S~

complete and your DSV11-S is
is sound. The installation is then
|
|
ready for use.

NOTE

The procedures described in this chapter do not exhaustively test

the operation of the cables and the modem. To test fully the

of the cables (including the modem signal and clock
~ operation
circuits) you must use the MDM Service Mode diagnostic, which
has to be purchased separately. Details of MDM Service Mode
can be found in the DSV11 COMMUNICATIONS OPTION TECHNICAL

DESCRIPTION. If you have a DIGITAL maintenance contract for
your system, DIGITAL Field Service personnel will test any cables

supplied by DIGITAL.

Test 1: LOOP CIRCUIT

FRRS

Run a DECnet circuit loopback test by following these steps:
|

1. Enter these NCP commands:

)

NCP> SET LINE DSV-c-n STATE ON
NCP> SET CIRCUIT DSV-c-n STATE ON

NCP> LOOP CIRCUIT DSV-c-n COUNT 10

where ¢ is the DSV11-S controller number and n is the number
of one of the circuits running over your DSV11-5.

binary
s, each made up of mixedo
Thists.test loops back 10 message
|

digi

| )

e indicates
5> Check the NCP message that is returned. This messag
If the test fails,
whether the test completed successfully or not.
see Section 3.3.

Test 2: LOOP LINE

B
N

Run an X.25 line loopback test by following these steps:

or attach a loopback
1. Switch your modem into local loop myode ion
o
cable.
r the modem end of the extens
- connectoto

)

Taesting the instaliatinan

Enter these NCP commands:

NCP> SET LINE DSV-c-n STATE OFF

NCP> SET LINE DSV-c-n STATE SERVICE CONTROLLER NORMAL
NCP> LOOP LINE DSV-c-n COUNT 10

“where ¢ is the DSV11-S controller number and n is the line
|

number.

This test lOops back 10 messages, each made up of mixed binary

3. Check the NCP message that is returned. This message indicates
whether the test completed successfully or not. If the test fails,

see Section 3.3.

Test 3: Perform One of Your UsUa_l Tasks

Test a system-runnini the BISYNC protocol by trying to perform
one of your usual tasks using the remote application. For example,
try to execute a single command. If this command does not execute
normally, see Section 3.3.
-

3.3 If a Test Fails

To check that the failure is not témporar_v, please try running the test

several times.

If the test still fails, check all of the cable connections between your

" DSV11-S and the modem. If the connections seem good, check that
al the DSV11-SF Communnications
your DSV11-S board is operation(see
Option Installation Guide for details).

If the board is operational, and the test still fails, refer to the problem

solving information supplied with your networking software.

If the problem persists, please contact your local DIGITAL office.

—

C‘ab'les* and Accessories

This appendlx contams tables listing the cables and 1oopback
connectors used mth the DSV11

A.1 Adapter Cables

Type

~Description

BC19B-02

DSV11 to RS-422

BS19D-02
|

DSV11 to V.24 mcludmg the 12-27591- OO V.24 to RS-232.C

adapter

BC19E-02

DSV11 to RS-423

BC19F-02

DSV11 to V.35

" A.2 Extension Cables
| Description

Type

BC55D-XX

RS-422

~ BC22F-YY
BC55D-XX

V.24
RS-423

BC19L-XX

V.35

XX represents one of:
7.6 m (25 ft) long

- 25
50

15.2 m (50 ft) long

22.9 m (75 ft) long

30.5 m (100 ft) long

YY represents one of:
10

3.1 m (10 ft) long
7.6 m (25 ft) long

110.7 m (35 ft) long
~15.2 m (50 ft) long

Cahles and Acressnries

. \\___//

Cables and Accessories

~A.3 Loopback Test Connectors
Type

Descripfion

H3199

Universal 50-way

H3198

Synchronous line loopback (RS-423)

H3198

Synchronous line loopback (RS-422)

S H3250

Synchronous line loopback (V.35)

H3248

Synchronous line loopback (RS-232-C)‘

General Specifications

* This appendix contains tables "listing.the environmental and electrical
characteristics of the DSV11-5.

B.1 Environmental Condit’io"'ns

Only use or store the DSV11-Sin an environment which corresponds
to the limits defined in Table B-1.

Table B-1 DSV11-S Environmental Limits _
Environment

Minimum

Storage Tenxperatute
Operating Temperature

Relative Humidity (Non-

Condensing)

Maximum

- -40°C (-40°F)
5°C (41°F)
10%
|

66°C (151°F)
60°C (140°F)
-

o
|

95%
|

NOTE

DIGITAL normally defines the operating temperature range for a

system as 5°C to 50°C (41°F to 122°F); the 10°C difference quoted

above allows for the temperature gradient inside the system box.

G@General Speciticatinns

B.2 Electrical Requirements
Table B-2

DSV11-S Electrical Requirements

- DC V‘Ol_tagve R
+5v

+12v.

Current

Power Consumption

+or-5% 6.5A

32.5 W (maximum)

| Vari_a_'n-ce» |

+or-5% 0875A

- Electrical loadings on the Q-bus are:

¢ AC load: 3.9

~»

DCload: 1.0

10.5 W (maximum)

Adapter Cable Pin Signals
This appendix illustrates and lists the signals associated with the
modem end of the adapter cables.

C.1 Introduction

Each section in this appendix describes one adapter cable. The
modem end pin-out is illustrated and a following table lists the pin
numbers and

their associated signals.

These are the pin-outs describeg:
e

RS-423 (Section C.2)

e RS-422 (Section C.3)

e V.35 (Section C.4)

e V.24 (Section C.5)

V.24 to RS-232-C adapter connector (Section C.6)

NOTE

the tables, (A) or (B) after a signal name refers to wire
Throughout

A or B of a twisted pair.

Adapter Cahle Pin Signals
\

C.2 RS-423 Adapter Cable: 37-Way Pins

PIN20 PINT

o 9
O,
@)

O
o.
o
0
o
o
o
o
O

o
o

PIN
‘

,-CD

ol
o

\/“Oo

fl_.

|
I
i

)

PIN 19
JE4ER?

Figure C-1

o
B

37-Way D-Type Connéctor (Male)

| Adar*mf»'f‘.ahlepm Siqnaig 21
Table C-1 RS-423 Pins and Signals

TX DATA

TX CLOCK(A)

5
6

7
§

16
17

Sighal Name

RX DATA (A)

Sigriél Name

TEST INDICATE

DTE GROUND

DCE GROUND

22
23

.
RTS
RXCLOCK(A)

24 ~

CIs@a

LOCALLOOP

DSR(A)

DCD(A)

DTR

REMOTE LOOP

SPEED

- CLOCK

RX DATA (B)

DTEGROUND
RX CLOCK (B)

~ CTS (B)

27
30

DTE GROUND
TXCLOCK(B)

DSR (B)

DTE GROUND

DCD (B)

DTEGROUND
DTEGROUND

Adantar Cahla Pin SiAgnals

C.3 RS-422 Adapter Cable: 37-Way Pins

PIN 20

PIN 1

PIN 37 —

~—-

(_B 0000000000000000
000000000000000000

——

PIN1Q

stages

Figure C-2

37-Way D-Type Connector (Male)

Adnméf Cahle Pin Sianals

Table C-2

RS-422 Pins and Signals

Signal Name

Signal Nvame".

TX DATA (A)
18
TX CLOCK
(A) 19
RX DATA (A)
20
RTS (A)

TXDATA (B)

RX CLOCK (A)
CTS (A)
LOCALLOOP

DSR (A)

23
24
25
26

DTR (A)

29
30

DSR (B)
DTR (B)

DCD (B)

16
17

SPEED
CLOCK (A)

35
37

'CLOCK (B)

13
14

N’

TEST INDICATE
'DTE GROUND
DCE GROUND

DCD (A)
REMOTE LOOP

~ TX CLOCK (B)
RX DATA (B)
RTS (B)

RX CLOCK (B)
CTS (B)

DTE GROUND

24 Adapter Cahle Pin Signals

C.4 V.35 Adapter Cable: 34-Way Pins

@,@‘@

|
°
o

26
%0
Q@ _ o

0
®
9®@©

6@9@'
0

O@®® ,
\J
o

J
qge668

Figure C-3

34-Way Square Connector (Male)

Adapter Cabie Pin Sianals

Table C-3 V.35 Pins and Signals
'P‘ln‘

S-ighal Name ~

Slgna] Name

TXCLOCK B

RX DATA (A)

CTS

B
C

E
F
H

]

DTEGROUND
RTS

S
T

TXDATA(B)
~ RX DATA (B)

DSR (A)
DCD/I (A)
DIR

Y
W
X

K
RX CLOC(A)
CLOCK (B)
RXCLOCK (B)

' TX DATA (A)

CLOCK (A)

TX CLOCK (A)

Adanter Cahle Pin Signals

C.5 V.24 Adapter Cable: 25-Way Pins

PIN
1

P|N14//

53
o 2
o

Q9
@)
@

@|
@
®

)Qy\

PIN 25

PIN 13
2467

Figure C-4

25-Way D-Type Connector (Male)

Adapter Canla Pin Sign‘a’ls

Table C-4 V.24 Pins and Signals
17

RXCLOCK

LOCAL LOOP

TXDATA
RX DATA

RTS

DTR

CTs
DSR

21
22

REMOTE LOOP
R

DTE GROUND

- SPEED SELECT

Signal Name

-Sighal Name

)
~

DCD

TXCLOCK

CLOCK

TEST INDICATE

28 Adapter Cabhle Pin Sig'nals

C.6 V.24/RS-232-C Adapter Connector: 25-Way

PsNH

N ~°W |

Q ol
Q g
Q g

S 9

>bpwm

;7/\ o
s

9o ¢
o ©
o °

Q 3

12o 3o

Lf J

5?}3

N 25 PIN 13
(FEMALE)

Q@ o

)

Q .O

)

PIN 13

(MALE)

2646564

Figure C-5 25-Way D-Type Connector (Male and Female)

g\ )

\«.,__//

Adapter Cahle Pin Signals

Table C-5

V.24 to RS-232-C Pins and Signals

(Male)

Signal Name

TX DATA

- RX DATA

RTS

CTIs

- Number

Pin Number

(Female)

DSR

DCD

TX CLOCK

RX CLOCK

DTR

24
25

~ GROUND

CcLock

TEST INDICATE

20
22

24
25

Pins 18 21, and 23 are not connected.