Specifications

Hardware Reference 3
C613-03064-00 REV E
Contents
Models Covered By This Reference .................................................................... 4
Why You Should Read This Reference ............................................................... 4
Where To Find More Information ...................................................................... 5
Hardware Description ....................................................................................... 5
Switch Overview ......................................................................................... 5
AT-8700XL Series Switch Models ................................................................ 7
AT-8724XL ................................................................................................. 7
AT-8748XL ................................................................................................. 7
Online Documentation ...................................................................................... 8
Accessing the CD-ROM and Online Documentation .................................... 8
AT-TFTP Server ................................................................................................... 8
Switch Start-up ............................................................................................... 10
To Log In .................................................................................................. 10
To access help files ................................................................................... 10
Start-up Procedures .................................................................................. 11
Switch Interfaces ............................................................................................ 13
RS-232 Terminal Port ................................................................................ 13
Switch RJ-45 Ports .................................................................................... 14
Redundant Power Supply ......................................................................... 16
Switch Cables and Loopback Plugs ................................................................. 17
Terminal and Modem Cables .................................................................... 17
Loopback Plugs for Testing Switch Interfaces ............................................ 19
Test Facility ..................................................................................................... 19
10/100 Ethernet LAN Port Tests ................................................................ 20
Troubleshooting .............................................................................................. 20
LEDs and What They Mean ....................................................................... 21
Some common problems and how to solve them ..................................... 24
Expansion Options .......................................................................................... 25
Uplink Modules ........................................................................................ 25
Port, Connector, and Cable Combinations ...................................................... 26
Using Windows Terminal and Windows Hyperterminal .................................... 26
Restricted Procedures ...................................................................................... 29
Diagnostics ............................................................................................... 29
Replacing Boot EPROMs ........................................................................... 30
Troubleshooting EPROM Installation ......................................................... 33
Contacting Us ................................................................................................. 33