Digital Equipment DECserver 90L User manual

DECserver90LOwner’sManual
Order Number EK-DSRVD-OM-001
Digital Equipment Corporation

February 1991
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.
Copyright © Digital Equipment Corporation 1991
All Rights Reserved.
Printed in U.S.A.
FCC NOTICE: The equipment described in this manual generates, uses, and may emit
radio frequency energy. The equipment has been type tested and found to comply with
the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC
Rules, which are designed to provide reasonable protection against such radio frequency
interference when operated in a commercial environment. Operation of this equipment in
a residential area may cause interference, in which case the user at his own expense may
be required to take measures to correct the interference.
The following are trademarks of Digital Equipment Corporation: DEC, DECbridge,
DECconnect, DECnet, DECserver, Digital, VMS, LAT, VAX, and the DIGITAL logo.
This document was prepared and published by Educational Services Development and
Publishing, Digital Equipment Corporation.

Contents
About This Manual vii
1 Overview
Features .............................................. 1–1
Quick Start . . . ........................................ 1–2
2 Installation
Standalone Installation . . ................................ 2–1
Backplane Installation . . . ................................ 2–5
3 Operation
Using a Terminal or Personal Computer ..................... 3–1
Establishing a Terminal Session . ........................ 3–1
Ending a Terminal Session ............................. 3–2
‘‘Last Number Redial’’ . ................................ 3–3
Interrupting a Terminal Session . ........................ 3–3
Resuming an Interrupted Terminal Session . . ............... 3–3
Disconnecting an Interrupted Terminal Session .............. 3–4
Using a Printer ........................................ 3–4
DECserver 90L Commands ............................... 3–4
DECserver 90L Information and Error Codes . . ............... 3–6
iii

iv Contents
4 Managing the DECserver 90L
Local Management ...................................... 4–2
Remote Management .................................... 4–2
Security .............................................. 4–2
Management Commands . ................................ 4–3
Set Command........................................ 4–3
Setting Port Parameters ............................. 4–3
Setting Server Parameters ............................ 4–7
Changing Password by Menu . . ........................ 4–10
Set and Clear Authorized Operation .................... 4–11
Enable and Disable Manager Mode ..................... 4–14
Show Command ...................................... 4–17
Show Port ........................................ 4–17
Show Server ....................................... 4–20
Reset Command ...................................... 4–22
Command Line....................................... 4–23
Using a Printer ........................................ 4–25
5 Troubleshooting
A Specifications
Physical Dimensions .................................... A–1
Environmental Specifications .............................. A–2
Power Specifications..................................... A–3
Connector Pin Out ...................................... A–3
LAT Specifications ...................................... A–5
B Related Documentation
Index

Contents v
Figures
1–1 Sample DECserver 90L Connection .................... 1–2
1–2 DECserver 90L . . . ................................ 1–4
2–1 DECserver 90L Standalone Installation. . ............... 2–2
2–2 Removing the Back Cover of the DECserver 90L . . . ....... 2–3
2–3 DECserver 90L Backplane Installation . . ............... 2–6
A–1 Port Circuit ...................................... A–4
Tables
1–1 Supported Terminal Characteristics .................... 1–3
3–1 DECserver 90L User Commands ...................... 3–5
3–2 DECserver 90L Information and Error Codes ............ 3–6
4–1 Port Parameters . . . ................................ 4–4
4–2 Server Parameters . ................................ 4–8
4–3 Port Status Description ............................. 4–17
5–1 DECserver 90L Troubleshooting ...................... 5–1
A–1 MMJPinOut..................................... A–4
A–2 LAT Server Characteristics . . ........................ A–5
A–3 LAT Port Characteristics ............................ A–5

AboutThisManual
This guide gives an overview of the DECserver 90L and describes how to
install, operate, manage, and troubleshoot the DECserver 90L. This guide
also gives the specifications and related documentation for the DECserver
90L.
Organization
This guides has five chapters and two appendices.
Chapter Meaning
1 Provides an overview of the DECserver 90L including
the features and a quick start procedure.
2 Describes how to install the DECserver 90L.
3 Describes how to start, interrupt, resume, and end a
terminal session.
4 Describes how to manage the DECserver 90L locally or
from a remote device on the network.
5 Describes how to troubleshoot the DECserver 90L.
Appendix A Describes the physical dimensions; environmental,
electrical, and LAT specifications.
Appendix B Provides a list of related documentation and how to
order information.
vii

viii About This Manual
Conventions
Convention Meaning
italic Indicates a new term or in command syntax examples, italic
words represent elements of a command for which you supply a
value. For example:
-> service
Return Key names appear in a box.
NOTE Provides general information.
bold text Bold text represents user input. For example:
-> Set Return
[] The characters in brackets [] do not need to be entered for the
DECserver 90L to recognize the command. For example:
D[ISCONNECT]

1
Overview
This chapter describes the features of the DECserver 90L and provides a
summary of the installation procedure.
Features
The DECserver 90L contains the following features:
• Simplified human interface
• Plug-and-go installation
• Small in size
• Rack mountable in DEChub
90 Ethernet backplane
• Network Management
through MOP and TSM
(future release of TSM)
• Eight ports
– 1.2K bits to 38.4K bits per second
– 8-bit characters
– One stop bit
– No parity
• One session per port
• Printer support, including queuing
• LAT compatible, V5.0 or higher
The DECserver 90L terminal server is an eight line, single session per
line, terminal server that supports terminals and printers. Each line
or port can establish a connection to one computer or service at a time.
DECserver 90L supports Digital’s Local Area Transport (LAT) protocol
and is designed to work in a ThinWire Ethernet Local Area Network
(LAN), as shown in Figure 1–1.
1–1

1–2 Overview
TERMINAL TERMINAL PERSONAL COMPUTER PRINTER
TERMINAL TERMINAL TERMINAL TERMINAL
DECserver 90L
TERMINAL SERVER
THINWIRE ETHERNET
COMPUTER 1 COMPUTER 2 COMPUTER 3 COMPUTER N
Figure 1–1 Sample DECserver 90L Connection
Quick Start
To install and begin using your DECserver 90L is simple. It does not
require any programming or other assistance from system management.
After unpacking the unit:
1. Plug the power supply in a working AC outlet and plug the power
connector from the power supply in to your DECserver 90L.
The green power LED turns on to indicate DC power is getting to the
unit. The green self-test turns on to indicate that the unit successfully
completed its internal self-test. The self-test takes approximately five
seconds to complete.
2. Connect the unit to a properly terminated ThinWire Ethernet.
The green network LED turns on to indicate a good connection.

Overview 1–3
3. Connect a working terminal to one of the terminal ports. Refer to
Table 1–1 for supported terminal characteristics.
4. Turn the power on to the terminal and press Return twice to get the
DECserver 90L prompt (->).
Pressing Return twice causes the green activity LED to blink and
automatically sets the port’s baud rate.
5. Enter the name of the network node you want to connect to and press
Return . The DECserver 90L will display a string of dots ‘‘.....’’, one per
second, until the connection is made.
For more detailed information on installing and using the DECserver 90L
refer to Chapter 2, Installation and Chapter 3, Operation of this manual.
Table 1–1 Supported Terminal Characteristics
Characteristic Setting
Transmit speed 1200 to 38.4K
Receive speed Receive = Transmit
Flow control XON/XOFF
Data and parity 8 Bits, No Parity
Stop bits 1
Figure 1–2 shows the DECserver 90L and calls out its features.