Digital Equipment DECbrouter 90 User manual

DECbrouter90T
InstallationandOperatingInformation
Order Number: EK–DECBR–OM. A01

First Edition, April 1993
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.
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.
© Digital Equipment Corporation 1993.
All Rights Reserved.
The following are trademarks of Digital Equipment Corporation: DEC, DECbridge, DECbrouter,
DECconnect, DECrouter, DECstation, DEC EtherWORKS, HUBwatch, ThinWire, and the Digital
logo.
All other trademarks and registered trademarks are the property of their respective holders.
This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface ..................................................... vii
1 Overview
Features.................................................. 1–1
DECbrouter90T1........................................ 1–2
DECbrouter90T2........................................ 1–2
DECbrouter90T2A ...................................... 1–3
TypicalConfigurations....................................... 1–5
Installation ............................................... 1–8
LEDsandConnectors ....................................... 1–9
2 Installation
StandaloneInstallation ...................................... 2–1
Selectalocation. ........................................ 2–1
Place the DECbrouter 90 on a table. . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Mount the DECbrouter 90 on a wall. . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Mount the DECbrouter 90 on a wall. . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Connectthecables. ...................................... 2–4
Install and verify devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
BackplaneInstallation....................................... 2–10
Removethebackcover. ................................... 2–10
Mount the DECbrouter 90 in the backplane. . . . . . . . . . . . . . . . . . . . 2–10
Install and verify devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
iii

3 Troubleshooting
BeforeYouStart............................................ 3–1
DECbrouter 90 Standalone Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 3–1
DECbrouter 90 Backplane Configuration Troubleshooting . . . . . . . . . . . . 3–3
A Specifications and Parts List
PhysicalDimensions ........................................ A–1
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
OperatingEnvironment................................... A–2
ShippingEnvironment.................................... A–2
ElectricalSpecifications...................................... A–2
PowerSupply........................................... A–3
PowerInput............................................ A–3
PartsList................................................. A–4
B Related Documentation
C DECbrouter 90 Installation Information for the United
Kingdom
ServiceCategories .......................................... C–1
HostPowerRating.......................................... C–2
ModuleIsolation ........................................... C–3
SafetyStatus.............................................. C–3
CableApproval ............................................ C–3
SupportedCables........................................... C–3
Equipment Between the Approved Module and a Digital Circuit
(PTT) .................................................... C–4
Index
Figures
1–1 Typical DECbrouter 90T1 Connection . . . . . . . . . . . . . . . . . . 1–6
1–2 Typical DECbrouter 90T2 or DECbrouter 90T2A
Connection....................................... 1–7
1–3 DECbrouter90LEDs............................... 1–9
2–1 Removing the Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2–2 Mounting the DECbrouter 90 . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
iv

2–3 DECbrouter 90T1 with a Twisted Pair (10BASET)
Connection....................................... 2–5
2–4 DECbrouter 90T1 with a ThinWire (10Base2) Connection . . . 2–6
2–5 DECbrouter 90T2 or DECbrouter 90T2A with a Twisted Pair
(10BASET)Connection.............................. 2–7
2–6 DECbrouter 90T2 or DECbrouter 90T2A with a ThinWire
(10Base2)Connection............................... 2–8
2–7 Removing the Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
2–8 Mounting the DECbrouter 90 . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
Tables
1–1 DECbrouter 90 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
1–2 DECbrouter90LEDs............................... 1–10
3–1 Troubleshooting a DECbrouter 90 Standalone Unit . . . . . . . . 3–1
3–2 Troubleshooting a DECbrouter 90 in a DEChub 90
Backplane ....................................... 3–3
A–1 X.21 Cable Connections (BC12F-06, 17-03580-01) . . . . . . . . . A–5
A–2 RS422 Cable Connections (BC12H-06, 17-03767-01) . . . . . . . A–6
A–3 V.35 Connection BC12G-06, 17-03766-01 . . . . . . . . . . . . . . . . A–8
A–4 RS530A Cable Connections BC12J-06, 17-03760-01 . . . . . . . . A–9
A–5 RS423 Cable Connections BC12K-06, 17-03761-01 . . . . . . . . . A–11
A–6 V.28/RS232 Cable Connections BC12L-06, 17-03762-01 . . . . . A–13
A–7 Cable Connections for Console Converter . . . . . . . . . . . . . . . . A–15
C–1 BABT-Approved Service Specifications . . . . . . . . . . . . . . . . . . C–2
C–2 ModulePower .................................... C–2
C–3 Cables Supported by the Approved Module . . . . . . . . . . . . . . C–3
v

Preface
This manual describes how to install and maintain the Digital Wide Area
Router/Bridge—the DECbrouter 90. This manual contains information on the
following three models:
• DECbrouter 90T1—single port
• DECbrouter 90T2—dual port
• DECbrouter 90T2A—dual port
The DECbrouter 90 is designed to work either as a standalone unit or in the
DEChub 90 backplane.
Organization
This manual contains three chapters and three appendices.
• Chapter 1 provides an overview of the DECbrouter 90 and describes the
features of the DECbrouter 90.
• Chapter 2 provides instructions for installing the Digital Wide Area
Router/Bridge.
• Chapter 3 provides basic troubleshooting information.
• Appendix A provides product specifications and a parts list.
• Appendix B lists related documents that can help you become more familiar
with your new system.
• Appendix C contains installation information, which is required for the
United Kingdom only.
vii

Conventions
This manual uses the following conventions:
Convention Meaning
Note Provides general information about the current topic.

A number in a black circle in text refers to the corresponding
number in an accompanying illustration.
viii

1
Overview
This chapter describes the features of the DECbrouter 90, shows several
typical configurations, summarizes the installation procedures for the
DECbrouter 90, and describes the DECbrouter 90 LEDs and connectors.
The DECbrouter 90 family consists of three models:
• DECbrouter 90T1
• DECbrouter 90T2
• DECbrouter 90T2A
Features
The DECbrouter 90 provides the following features:
• Choice of Ethernet in either ThinWire (10Base2) or twisted pair (10BASET)
• Choice of serial port configurations:1
EIA530A2
RS232/V.28
RS449/RS422/V.112
RS449/RS423/V.102
V.353
V.362
X.21 Leased Lines (LL)
• Console port
• Installable on a DEChub 90 backplane
1One serial port for DECbrouter 90T1 and two for either DECbrouter 90T2 or
DECbrouter 90T2A models.
2Not available for DECbrouter 90T2.
3Not available for DECbrouter 90T2A.
Overview 1–1

Overview
Features
• Simple Network Management Protocol (SNMP) through HUBwatch or
other network management system
Table 1–1 summarizes the features for each model of the DECbrouter 90.
DECbrouter 90T1
The DECbrouter 90T1 is a Digital Wide Area Router/Bridge consisting of
two interfaces and one console port. The interfaces consist of one Ethernet
interface and one synchronous serial port. The Ethernet interface is either a
ThinWire port (10Base2) or a twisted pair port (10BASET) exclusively. The
synchronous serial port supports one of the following seven standards as
determined by the cable attached to the serial port:
• EIA530A
• RS232/V.28
• RS449/RS422/V.11
• RS449/RS423/V.10
• V.35
• V.36
• X.21 Leased Lines
The console port consists of an asynchronous RS232 serial port.
DECbrouter 90T2
The DECbrouter 90T2 is a Digital Wide Area Router/Bridge consisting of
three interfaces and one console port. The interfaces consist of one Ethernet
interface and two synchronous serial ports. The Ethernet interface is either
a ThinWire (10Base2) port or a twisted pair (10BASET) port exclusively. The
synchronous serial ports support any two of the following three standards,
in any combination, as determined by the cable attached to the synchronous
serial port:
• RS232/V.28
• V.35
• X.21 Leased Lines
The console port consists of an asynchronous RS232 serial port.
1–2 Overview