IBM 8270 Installation and maintenance instructions

8270 Models 600 and 800 ÉÂÔ
Installation and Service Guide

Note
Before using this information and the product it supports, be sure to read the general information in Appendix B,
“Notices and Product Warranty” and “Electronic Emission Notices” on page B-1.
1st Edition (July 1998)
The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local
law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may
not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes
will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or program(s) described in
this publication at any time.
It is possible that this publication may contain reference to, or information about, IBM products (machines and programs), programming, or services that
are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products,
programming, or services in your country.
Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your IBM Marketing Representative.
A form for readers’ comments appears at the back of this publication. If the form has been removed, address your comments to:
Department CGF
Design & Information Development
IBM Corporation
PO Box 12195
RESEARCH TRIANGLE PARK NC 27709-9990
USA
When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without
incurring any obligation to you.
 Copyright International Business Machines Corporation 1998. All rights reserved.
Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject to
restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
About This Manual .................................. xv
How This Manual Is Organized ............................ xv
Prerequisite Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Chapter 1. Physical Characteristics and Features ............... 1-1
Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Processor Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Universal Feature Cards .............................. 1-8
Dimensions and Weight ............................. 1-10
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Switch Configuration for Optimum Performance ............... 1-11
Chapter 2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Unpacking the Token-Ring Processor Card (8270-800 Only) .......... 2-1
Unpacking the 8270 Chassis ............................. 2-2
Other Materials You Will Need ............................ 2-2
Installing the Token-Ring Processor Card (8270-800 Only) ........... 2-3
Surface Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Rack-Mounting the 8270-600 ............................. 2-6
Rack-Mounting the 8270-800 ............................. 2-7
Installing a Universal Feature Card ........................ 2-15
Installing the Second Power Supply (8270-800 Only) .............. 2-19
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Connecting Devices to the Token-Ring Ports ................. 2-21
Connecting Devices to the Token-Ring Ports Using Building Wiring .... 2-23
Powering On the 8270 ................................ 2-24
Powering on the 8270-600 ............................ 2-24
Powering on the 8270-800 ............................ 2-25
Power-On Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Chapter 3. Setting up a Console Session .................... 3-1
Chapter 4. Updating Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Download the Diskette Image from the Internet .................. 4-1
Download the Code into the 8270 .......................... 4-1
Initiating a Download with the System Request Menu ............. 4-2
Serial Port or TFTP Downloading with the Download Menu .......... 4-3
BootP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Chapter 5. Troubleshooting and Service .................... 5-1
Obtaining Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Troubleshooting in a Network ............................. 5-1
Start of Troubleshooting Process ........................... 5-1
 Copyright IBM Corp. 1998 iii

Choosing a Troubleshooting Procedure ....................... 5-2
Procedure A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Procedure B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Procedure C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Procedure D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Obtaining Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Chapter 6. Service Procedures for Qualified Personnel ........... 6-1
Parts Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Assembly 1: 8270-600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Assembly 2: Front View 8270-800 ........................ 6-2
Assembly 3: Rear View 8270-800 ........................ 6-3
Assembly 4: Line Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Replacing a Fan in an 8270-600 ........................... 6-5
Replacing a Power Supply in an 8270-600 ..................... 6-5
Replacing a Fan in an 8270-800 ........................... 6-5
Replacing a Fuse in an 8270-800 .......................... 6-6
Appendix A. Cable and Pin Information .................... A-1
Connecting to the Management (EIA 232) Port ................. A-1
Twisted-Pair Cable Pinouts ............................. A-1
Straight-Through 100-Ohm and 120-Ohm Cable ............... A-1
150-Ohm Data Connector-to-RJ-45 Straight-Through Cable ........ A-2
EIA 232 Port and Cable Pinouts .......................... A-2
EIA 232 Port Pinout ................................ A-2
EIA 232 Modem Cable Connections ...................... A-3
EIA 232 Null-Modem Connections ....................... A-3
Cabling Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Length Recommendations for Dedicated-Media LAN Segments ...... A-5
Lobe Wiring Rules for Dedicated-Media LAN Segments ........... A-5
Cable Length and Lobe Wiring Rules for Shared-Media LAN Segments . A-6
Number of Attaching Devices .......................... A-6
Appendix B. Notices and Product Warranty ................. B-1
Electronic Emission Notices ........................... B-1
Statement of Compliance with the United Kingdom Telecommunications Act
1984 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Power Line Harmonics Compliance Statement ................ B-3
Lithium Battery Notice .............................. B-3
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1
iv 8270 Nways LAN Switch Models 600 and 800

Figures
1-1. The IBM 8270 Nways Token-Ring LAN Switch Model 800 and 600 . 1-1
1-2. The 8270-600 Front View .......................... 1-2
1-3. The 8270-800 Front View .......................... 1-3
1-4. The 8270-800 Power Supply ........................ 1-4
1-5. The 8270-800 Power Supply Faceplate .................. 1-5
1-6. The Token-Ring Processor Card Faceplate ............... 1-6
2-1. The 8270-800 As It Is Shipped. ...................... 2-3
2-2. Installing the Token-Ring Processor Card ................ 2-4
2-3. Securing the Token-Ring Processor Card ................ 2-5
2-4. Installing the 8270-600 in the Rack .................... 2-7
2-5. Removing the Power Supply from the 8270-800 ............ 2-8
2-6. Installing the 8270-800 Cable Management Bracket ......... 2-10
2-7. Installing the 8270-800 in the Rack ................... 2-11
2-8. Installing the Power Supply in the 8270-800 .............. 2-13
2-9. Removing a UFC Slot Cover ....................... 2-16
2-10. Installing a UFC .............................. 2-17
2-11. Inserting the Second Power Supply ................... 2-19
2-12. Securing the Second Power Supply ................... 2-20
2-13. Connecting Devices to Token-Ring Ports ................ 2-22
2-14. Connecting Devices to Token-Ring Ports Using Building Wiring .. 2-23
2-15. Powering On the 8270 .......................... 2-24
2-16. Powering On the 8270-800 ........................ 2-25
4-1. System Request Menu ........................... 4-2
4-2. Download Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-3. TFTP Download Panel ........................... 4-5
4-4. Example of a BOOTPTAB File ....................... 4-7
6-1. 8270-800 Fuse and Fan Connector Panel ................ 6-6
A-1. Straight-Through Cable . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-2. 150-Ohm Data Connector-to-RJ-45 Straight-Through Cable ..... A-2
A-3. Pinout of the EIA 232 Port ........................ A-3
A-4. EIA 232 Modem Cable for Terminal with 25-Pin Connector ..... A-3
A-5. EIA 232 Null-Modem Cable for Terminal with 25-Pin Connector .. A-3
A-6. EIA 232 Null-Modem Cable for Terminal with 9-Pin Connector ... A-4
 Copyright IBM Corp. 1998 v

Tables
1-1. Power Supply Status LEDs (8270-800 Only) ............... 1-5
1-2. Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1-3. Token-Ring Port LEDs .......................... 1-10
1-4. Dimensions and Weight .......................... 1-10
1-5. Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
2-1. 8270-800 Installation Procedures ..................... 2-1
2-2. Normal State of Status LEDs ....................... 2-26
5-1. Symptom, LED State, and Recommended Procedure ......... 5-3
6-1. Fuse Power Control ............................. 6-7
A-1. Connecting to the EIA 232 Port ..................... A-1
A-2. Copper Cable Types ........................... A-4
A-3. Multimode Optical Fiber Cable Types .................. A-4
A-4. Lobe Lengths for 150-Ohm, Shielded Media .............. A-5
A-5. Lobe Lengths for 100-/120-Ohm, Shielded or Unshielded Cable .. A-5
A-6. Lobe Lengths for 100-/120-Ohm, Shielded or Unshielded Cable .. A-5
vi 8270 Nways LAN Switch Models 600 and 800

Safety Information
Danger: Before you begin to install this product, read the safety information
in Caution: Safety Information—Read This First , SD21-0030. This booklet
describes safe procedures for cabling and plugging in electrical equipment.
Danger: No user serviceable parts inside product. Refer service to qualified
personnel.
Varning — livsfara: Innan du börjar installera den här produkten bör du
läsa säkerhetsinformationen i dokumentet Varning: Säkerhetsföreskrifter— Läs
detta först, SD21-0030. Där beskrivs hur du på ett säkert sätt ansluter elektrisk
utrustning.
VARNING: Service ska endast utföras av utbildad servicepersonal.
Fare: Før du begynner å installere dette produktet, må du lese
sikkerhetsinformasjonen i Advarsel: Sikkerhetsinformasjon — Les dette først ,
SD21-0030 som beskriver sikkerhetsrutinene for kabling og tilkobling av elektrisk
utstyr.
Fare: Inneholder ingen deler som kan repareres av brukeren. Overlat
service til kvalifisert personell.
Fare! Før du installerer dette produkt, skal du læse sikkerhedsforskrifterne i
NB: Sikkerhedsforskrifter—Læs dette først SD21-0030. Vejledningen beskriver
den fremgangsmåde, du skal bruge ved tilslutning af kabler og udstyr.
Fare! Indvendigt eftersyn af dette produkt må kun foretages af
servicepersonale.
Gevaar: Voordat u begint met de installatie van dit produkt, moet u eerst de
veiligheidsinstructies lezen in de brochure PAS OP! Veiligheidsinstructies—Lees dit
eerst, SD21-0030. Hierin wordt beschreven hoe u electrische apparatuur op een
veilige manier moet bekabelen en aansluiten.
GEVAAR: Dit produkt bevat geen onderdelen die door de gebruiker kunnen
worden hersteld. Voor herstellingen moet u een beroep doen op gespecialiseerd
onderhoudspersoneel.
 Copyright IBM Corp. 1998 vii

Gevaar: Voordat u begint met het installeren van dit produkt, dient u eerst
de veiligheidsrichtlijnen te lezen die zijn vermeld in de publikatie Caution: Safety
Information - Read This First , SD21-0030. In dit boekje vindt u veilige procedures
voor het aansluiten van elektrische appratuur.
GEVAAR: In dit product bevinden zich geen onderdelen die door de
gebruiker kunnen worden onderhouden. Laat onderhoud over aan bevoegd
personeel.
Vorsicht: Bevor mit der Installation des Produktes begonnen wird, die
Sicherheitshinweise in Achtung: Sicherheitsinformationen—Bitte zuerst lesen, IBM
Form SD21-0030. Diese Veröffentlichung beschreibt die Sicherheitsvorkehrungen
für das Verkabeln und Anschließen elektrischer Geräte.
Vorsicht: Keine vom Benutzer zu wartenden Teile vorhanden.
Instandhaltungsarbeiten dürfen nur von Fachpersonal durchgeführt werden.
Danger : Avant d'installer le présent produit, consultez le livret Attention :
Informations pour la sécurité — Lisez-moi d'abord , SD21-0030, qui décrit les
procédures à respecter pour effectuer les opérations de câblage et brancher les
équipements électriques en toute sécurité.
Danger: Le produit ne contient pas de pièces réparables par l'utilisateur.
Adressez-vous à du personnel qualifié pour les réparations.
Danger: Avant de procéder à l'installation de ce produit, lisez d'abord les
consignes de sécurité dans la brochure ATTENTION: Consignes de sécurité—A
lire au préalable, SD21-0030. Cette brochure décrit les procédures pour câbler et
connecter les appareils électriques en toute sécurité.
viii 8270 Nways LAN Switch Models 600 and 800

Danger: Ce produit ne contient pas d'éléments susceptibles d'être
entretenus par l'utilisateur. Faites appel à un technicien qualifié.
Pericolo: prima di iniziare l'installazione di questo prodotto, leggere le
informazioni relative alla sicurezza riportate nell'opuscolo Attenzione: Informazioni
di sicurezza — Prime informazioni da leggere in cui sono descritte le procedure per
il cablaggio ed il collegamento di apparecchiature elettriche.
Pericolo: Questo prodotto non contiene parti sostituibili dall'utente. Se
occorre, richiedere assistenza tecnica a personale specializzato.
Perigo: Antes de iniciar a instalação deste produto, leia as informações de
segurança Cuidado: Informações de Segurança — Leia Primeiro , SD21-0030.
Este documento descreve como efectuar, de um modo seguro, as ligações
eléctricas dos equipamentos.
Perigo: Nenhum dos componentes internos pode ser reparado pelo cliente.
Para qualquer reparação, chame sempre um técnico especializado.
Peligro: Antes de empezar a instalar este producto, lea la información de
seguridad en Atención: Información de Seguridad — Lea Esto Primero, SD21-0030.
Este documento describe los procedimientos de seguridad para cablear y enchufar
equipos eléctricos.
Peligro: Dentro del producto no hay piezas a las que el usuario pueda
prestar servicio técnico. Ceda el servicio a personal cualificado.
Perigo: Antes de começar a instalar este produto, leia as informações de
segurança contidas em Cuidado: Informações Sobre Segurança—Leia Isto
Primeiro, SD21-0030. Esse folheto descreve procedimentos de segurança para a
instalação de cabos e conexões em equipamentos elétricos.
Perigo: Dentro deste produto não existem peças que possam ser
manuseadas por parte do usuário. Qualquer serviço dentro deste produto deverá
ser executado por pessoa autorizada e qualificada.
VAARA: Ennen kuin aloitat tämän tuotteen asennuksen, lue julkaisussa
Varoitus: Turvaohjeet—Lue tämä ensin , SD21-0030, olevat turvaohjeet. Tässä
kirjasessa on ohjeet siitä, miten sähkölaitteet kaapeloidaan ja kytketään turvallisesti.
VAARA: Tuotteessa ei ole käyttäjän huollettavaksi tarkoitettuja osia.
Tuotteen saa huoltaa vain ammattitaitoinen huoltoedustaja.
Safety Information ix

x8270 Nways LAN Switch Models 600 and 800