Digital Equipment DECserver 90M User manual

Part Number : EK-DSRVH-OM. A01
DECserver 90M
Owner’s Manual

CAUTION The DECserver 90M is not intended for use with telecommunications net-
works or with Integrated Services Digital Network (ISDN) devices.
ACHTUNG Der DECserver 90M darf nicht als Teil eines Fernmeldenetzwerks oder
zusammen mit ISDN1–Geräten betrieben werden. (1Integrated Services
Digital Network)
ATTENTION Le DECserver 90M n’a pas été conçu pour fonctionner avec des réseaux de
télécommunication ou des modules ISDN (Integrated Services Digital
Network).
A VISO El DECserver 90M no ha sido diseñado para su uso con redes
IMPORTANTE de telecomunicaciones ni dispositivos de Red Digital Servicios Integrados
(ISDN).

Part Number : EK-DSRVH-OM. A01
DECserver 90M
Owner’s Manual

________________________________________________________________
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 responsi-
bility for any errors that may appear in this document.
The software described in this document is furnished under a license and may only be used or copied 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 or its affiliated companies.
RestrictedRights:Use,duplication,ordisclosurebytheU.S.Governmentissubjecttorestrictionsasset
forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227–7013.
Copyright 1993 by Digital Equipment Corporation
All Rights Reserved
FCCNOTICE–Theequipmentdescribedinthismanualgenerates,usesandmayemitradiofrequency
energy.TheequipmenthasbeentypetestedandfoundtocomplywiththelimitsforaClassAcomputing
device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protec-
tion against such radio frequency interference when operated in a commercial environment. Operation
ofthis equipmentin aresidential areamay causeinterference, inwhich casethe userat hisown expense
may be required to take measures to correct the interference.
The following are trademarks of Digital Equipment Corporation:
DEC, DECconnect, DEChub, DECnet, DECUS, DECserver, LAT, OpenVMS, PDP, ThinWire,
ULTRIX, UNIBUS, VAX, and the Digital logo.
The following are third-party trademarks:
MS-DOS is a registered trademark of Microsoft Corporation.
UNIX is a registered trademark of UNIX System Laboratories, Inc.

Für Bundesrepublik Deutschland
For Federal Republic of Germany
Pour la République féderale d’Allemagne
Hochfrequenzgerätezulassung und Betriebsgenehmigung
Bescheinigung des Herstellers/Importeurs
Hiermit wird bescheinigt, daß die
Einrichtung in Übereinstimmung mit den
Bestimmungen der DBP–Verfügung 523/1969,
Amtsblatt 113/1969, und Grenzwertklasse
”A” der VDE0871, funkentstört ist.
Das Zentralamt für Zulassungen im
Fernmeldewesen der Deutschen Bundespost
(DBP), hat diesem Gerät eine
FTZ–Serienprüfnummer
zugeteilt.
Betriebsgenehmigung
Hochfrequenzgeräte dürfen erst in
Betrieb genommen werden, nachdem
hierfür von dem für den vorgesehenen
Aufstellungsort zuständigen Fernmeldeamt mit
Funkstörungsmeßstelle die Genehmigung
erteilt ist.
Als Antrag auf Erteilung einer Genehmigung
dient eine Anmeldepostkarte
(Anhang des Handbuches) mit Angabe der
FTZ– Serienprüfnummer.
Der untere Teil der Postkarte ist vom
Betreiber zu vervollständigen und an das
örtliche Fernmeldeamt zu schicken. Der
obere Teil bleibt beim Gerät.

Betreiberhinweis
Das Gerät wurde funktechnisch sorgfältig
entstört und geprüft. Die Kennzeichnung
mit der Zulassungsnummer bietet Ihnen
die Gewähr, daß dieses Gerät keine
anderen Fernmeldeanlagen einschließlich
Funkanlagen stört.
Sollten bei diesen Geräten ausnahmsweise
trotzdem, z.B. im ungünstigsten Fall
beim Zusammenschalten mit anderen
EDV–Geräten, Funkstörungen auftreten
DIGITAL kann das im Einzelnenizusätzlichenal
Funkentstörungsmaßnahmen durch den
Benutzer erfordern.
Bei Fragen hierzu wenden Sie sich
bitte an die örtlich zuständige
Funkstörungsmeßstelle Ihres
Fernmeldeamtes.
Externe Datenkabel
Sollte ein Austausch der von Digital
spezifizierten Datenkabel nötig
werden, muß der Betreiber für eine
einwandfreie Funkentstörung sicherstellen,
daß Austauschkabel im Aufbau und
Abschirmqualität dem Digital Originalkabel
entsprechen.

Kennzeichnung
Die Geräte werden bereits in der Fertigung
mit der Zulassungsnummer gekennzeichnet
und mit einer Anmeldepostkarte versehen.
Sollte Kennzeichnung und Anmeldepostkarte
übergangsweise nicht mit ausgeliefert
werden kontaktieren Sie bitte das
nächstgelegene Digital Equipment
Kundendienstbüro.

vii
Contents
About This Manual
1 Overview
1.1 Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Features 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Installation
2.1 Installing the DECserver 90M Hardware 2–1. . . . . . . . . . . . . . . . . .
2.1.1 Standalone Installation 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.2 Backplane Installation 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Running the DECserver 90M Self-Tests 2–9. . . . . . . . . . . . . . . . . .
2.3 Loading the DECserver Network Access Software 2–10. . . . . . . . . .
2.3.1 Booting From Flash RAM 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2 Booting From the Network 2–10. . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.3 Using Console Commands to Boot 2–11. . . . . . . . . . . . . . . . . . . .
2.4 Verifying the Operation of the DECserver 90M Ports 2–14. . . . . . . .
3 Troubleshooting
3.1 Operating Problems 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

viii
A Specifications
A.1 Physical Specifications A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Environmental Specifications A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.3 Power Specifications A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.4 Access Server Connector Pin Out A–4. . . . . . . . . . . . . . . . . . . . . . . . .
A.5 Cable Connector Pin Out A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 DECserver 90M Connection 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 DECserver 90M Hardware 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 Removing the Back Cover 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Standalone Configuration – ThinWire Connection 2–5. . . . . . . . . .
2–3 Standalone Configuration – 10BaseT Connection 2–6. . . . . . . . . .
2–4 Backplane Installation 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–1 Port Circuit A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–2 BN25G Equipment Cabling Wiring Diagram A–5. . . . . . . . . . . . . .
A-3 BN24H Office Cable Wiring Diagram A–6. . . . . . . . . . . . . . . . . . . .
Tables
1–1 Controls, Indicators, and Connectors 1–6. . . . . . . . . . . . . . . . . . . . .
2–1 LOAD and DUMP Protocols 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Interactive Boot Mode Commands 2–12. . . . . . . . . . . . . . . . . . . . . .
3–1 DECserver 90M Troubleshooting 3–2. . . . . . . . . . . . . . . . . . . . . . .
A–1 Physical Specifications A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–2 Operating Environment A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–3 Shipping Environment A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–4 Power Supply A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A–5 DECserver 90M Power Specifications A–3. . . . . . . . . . . . . . . . . . .
A–6 Cable Connectors A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ix
About This Manual
This manual describes the procedures used to install and troubleshoot the
DECserver90M.
Document Structure
This manual contains the following three chapters and one appendix:
•Chapter 1 provides an overview of the DECserver 90M features.
•Chapter 2 describes selected methods of installing the DECserver 90M.
•Chapter 3 describes troubleshooting techniques.
•Appendix A lists DECserver 90M specifications.
Forsoftwareinformation,refertotheDECserverNetworkAccessSoftwareInstalla-
tion documentation.

x
Related Documentation
•LATNetwork Concepts
•Network Access Server Commands
•Network Access Server Management
•Network Access Server Problem Solving
•DECserver Network Access Software Installation (MS-DOS, OpenVMS,
ULTRIX, or UNIX)
•DEChub90 Owner’s Manual
•OPEN DECconnectApplications Guide
Conventions
This manual uses the following conventions:
Convention Meaning
special type This special type indicates system output or user input.
Ctrl
/X Hold down the Control key and simultaneously press the key
specified by X. The DECserver displays this key combination
as ^X.
UPPERCASE Uppercase letters in command lines indicate keywords that
must be entered. You can enter keywords in either upper-
case or lowercase. You can abbreviate command keywords
to the smallest number of characters that distinguish the key-
word to the DECserver.
CAUTIONS Provide information to prevent damage to equipment or soft-
ware.
NOTES Provides general information about the current topic.

1–1
1
Overview
This chapter provides an overview of the DECserver 90M and its features.
1.1 Description
The DECserver 90M is a multisession network access server designed to operate in
multivendor environments. The DECserver 90M can be configured as a standalone
device or as a module in the DEChub 90 Ethernet backplane.
TheDEChub90isamultifunctionEthernetbackplanethatprovidesmounting,pow-
er, and connections for up to eight work group local area network (LAN) products.
The DECserver 90M has the capability to:
•Downline load software using DECnetMaintenance Operation Protocol
(MOP) or TCP/IP Bootstrap Protocol (BOOTP).
•Attach to a ThinWireor 10BaseT Ethernet network.
•Support eight asynchronous devices.
•Support Open DECconnect network.
•Load software from Flash RAM. (For versions configured with Flash RAM,
no load host is required.)

1–2 DECserver 90M Owner’s Manual
Figure 1–1 shows a typical DECserver 90M configuration in a ThinWire Ethernet
LAN.
Figure 1–1: DECserver 90M Connection
LKG-6737–92I
Personal
computer TD/SMP terminal Personal computer Printer
TerminalTerminalTerminalTerminal
DECserver 90M
IP router/
gateway
ULTRIX host
UNIX host
DECnet
router
MS-DOS
host
ThinWire Ethernet
OpenVMS
host

Overview 1–3
1.2 Features
In addition to the previously mentioned capabilities, the DECserver 90M sup-
ports the following standard features and protocols:
•Rack mountable in the DEChub 90 Ethernet backplane
•Ready-in/ready-out or XON/XOFF flow control
•Manageable through remote console facility on OpenVMS,ULTRIX, or
UNIX systems
•Manageable using Terminal Server Manager (TSM) software (OpenVMS
only)
•Kerberos-based user authentication support
•Command line recall and editing
•3270 Terminal Emulator (TN3270) support
•Domain Name System (DNS) support

1–4 DECserver 90M Owner’s Manual
•Port characteristics
–8-wire modular jack - MJ8 (also known as RJ45)
–Individual port status LEDs
–6-wire control signaling
•Protocols
–Bootstrap Protocol (BOOTP)
–Compressed Serial Line Internet Protocol (CSLIP)
–LAT Protocol
–Maintenance Operation Protocol (MOP)
–Point-to-Point Protocol (PPP)
–Serial Line Internet Protocol (SLIP)
–Simple Network Management Protocol (SNMP)
–Telnet
–Terminal Device/Session Management Protocol (TD/SMP)
–Trivial File Transfer Protocol (TFTP)

Overview 1–5
Figure 1–2 calls out the DECserver 90M controls, indicators, and connectors. Table
1–1 provides a description of these features.
Figure 1–2: DECserver 90M Hardware
LKG–6736–92I
12
6
7
10
9
8
11
1
2
3
5
4

1–6 DECserver 90M Owner’s Manual
Table 1–1: Controls, Indicators, and Connectors
Item Description
1Power Indicator Turns on when +5 volts are supplied to the
DECserver 90M.
2 System OK Indicator Turns on when the DECserver 90M successfully
completes the ROM-based self-tests.
3 Network OK Indicator Turns on when you connect the DECserver 90M
to a properly terminated network. Blinks while
the DECserver 90M loads or dumps software.
4 Ethernet Address Label Displays the DECserver 90M Ethernet address.
5 10BaseT Connector Connects the DECserver 90M to the network.
Not used when you install the DECserver 90M in
a DEChub 90 Ethernet backplane.
6 Port Activity Indicators Consists of eight LEDs, each corresponding to a
device port on the DECserver 90M. Each port
activity LED turns on when the associated port is
in use. These LEDs blink when port activity is
detected and continue blinking until port data
transfer stops.
7 Port Connectors (MJ8) Connects the peripheral devices to the
DECserver 90M.
8 Power Connector Connects the power source to the standalone
DECserver 90M. Not used when you install the
DECserver 90M in a DEChub 90 Ethernet back-
plane.
9 Backplane Connector Connects the DECserver 90M power source and
network interface to a DEChub 90 Ethernet
backplane.
10 Back Cover Covers the backplane connector and mounting
assembly. Present on standalone units only.
11 Reset Switch Resets the DECserver 90M to the factory-default
characteristics.
12 Network Connector (BNC) Connects the DECserver 90M to the ThinWire
network. Not used when you install the DEC-
server 90M in a DEChub 90 Ethernet backplane.

2–1
2
Installation
The DECserver 90M can be installed as a standalone device – on a tabletop or
mounted to a wall – or added to the DEChub 90 Ethernet backplane.
Before you begin the hardware installation –– if Flash RAM is not present ––
ensure that the software has been properly installed. Refer to the appropriate
DECserver Network Access Software Installation documentation.
Complete the installation by:
•Installing the DECserver 90M hardware
•Running the DECserver 90M self-tests
•Loading the DECserver Network Access Software
•Verifying the operation of the DECserver 90M ports
2.1 Installing the DECserver 90M Hardware
The following sections describe how to install the DECserver 90M hardware as a
standalone device or in a backplane.

2–2 DECserver 90M Owner’s Manual
2.1.1 Standalone Installation
Depending on your configuration, you can install the DECserver 90M
as a tabletop device or on a wall by performing the following steps:
Wallmount Only:
1. Remove the back cover (refer to Figure 2–1).
a. Insert a small screwdriver into the top mounting hole of the cover.
b. Lift up the latch on the back cover of the unit.
c. Pull the top of the cover away from the unit and down to remove it.
2. Use the back cover as a template and position each of the #8 1-inch mounting
screws (not supplied).
3. Secure the mounting screws.
4. Replace the back cover on the unit.
Tabletop and Wallmount:
5. Connect the DECserver 90M BNC connector to a properly configured Thin-
Wire network as shown in Figure 2–2.
or
Connect the 10BaseT connector to a properly configured 10BaseT network as
shown in Figure 2–3.
CAUTION
You should choose only a ThinWire or 10BaseT con-
nection. If you connect to both, the connection will not
function properly.