3Com S26x, S27x, S24x installation manual Simm, URL D-1

Power Supply 1-11removing/replacing 4-7

R

Rack-Mount configuration 1-8installation 2-5, 2-8parts 2-6

Radio Frequency Interference Regulations 1-42RAM 1-12

installation 3-14

Regional Concentrator Example 1-4Removing

Pedestal Base 2-10SIMMs 3-15

Removing/Replacing cover 4-3

Front Panel Cover 4-5

Lithium Battery 4-14

PathBuilder S24x, 26x, and 27x Switch Cards 4-9

Power Supply 4-7

Replacing PathBuilder S24x, 26x, and 27x switch Motherboard 4-12

Reset Switch 1-11

returning products for repair D-4RFI Regulations 1-42

RS

reset 3-8

S

Serial Port 1-14Serial/Network Ports 1-14Service LED 1-11Setting

the switches 3-6

Signal Quality Error (SQE) 1-9, 1-41

SIMM

installation 3-14, 3-15location 3-15removal 3-15

slots 1-13

Single in-line memory module (see SIMM) Software options

installation 3-26

Software Serial Number (SSN) 1-13Special notices

description vii Start

cold 3-24

default node command 3-25warm 3-24

Statistics

Channelized Data 5-1

Status LEDs 1-11

Switch Block Settings 3-6

T

T1 Dual Port Digital PBX Interface Card cables required 1-18

description 1-9, 1-17DIP switches

location 1-18setting 1-18

functions provided 1-17LED descriptions 1-19slot restriction 1-18

T1/CSU Daughter Card 1-18T1/E1 connections

Channelized Data 5-5technical support

3Com URL D-1

bulletin board service D-2fax service D-2network suppliers D-2product repair D-4

Telecommunications Regulations 1-43Telephone Company

information 1-46Temperature, operating B-1Top Cover

removing/replacing 4-3Transceiver

installation 3-23Troubleshooting

DSU internal loopback 3-11guidelines 3-11

node statistics 3-11port statistics 3-11

U

Unpacking 2-4

URL D-1

V

Virtual Port Mapping Table guidelines 5-20parameters 5-21

Virtual Ports booting 5-18enabling 5-18

Virtual ports booting 5-18configuring 5-18

Index-4