Specifications

Contents
Models Covered By This Reference .................................................................... 2
Why You Should Read This Reference ............................................................... 2
Where To Find More Information ...................................................................... 3
Hardware Description ....................................................................................... 3
Switch Overview ......................................................................................... 3
AT-9800 Series Switch Models .................................................................... 5
AT-9812T ................................................................................................... 5
AT-9812TF .................................................................................................. 5
AT-9816GB ................................................................................................. 6
AT-9816GF ................................................................................................. 6
Online Documentation ...................................................................................... 7
To Access Online Documentation ................................................................ 7
AT-TFTP Server ................................................................................................... 8
Using Windows Terminal and Windows Hyperterminal ...................................... 9
Switch Start-up ............................................................................................... 11
To log In ................................................................................................... 11
To access help .......................................................................................... 12
Start-up Procedures .................................................................................. 13
RS-232 Terminal Port (ASYN0) ......................................................................... 15
Useful Cables .................................................................................................. 16
RS-232 Terminal and Modem Cables ........................................................ 16
Cables for RJ-45 Ethernet LAN Interfaces .................................................. 18
Test Facility ..................................................................................................... 19
Ethernet LAN Port Tests ............................................................................ 19
Other Interface Tests ................................................................................. 21
Redundant Power Supply (RPS) ....................................................................... 21
AT-RPS8000 .............................................................................................. 22
AT-RPS9000 .............................................................................................. 23
Port, Connector, and Cable Combinations ...................................................... 24
Troubleshooting .............................................................................................. 24
LEDs and What They Mean ....................................................................... 24
Check these first ...................................................................................... 27
Some common problems and how to solve them ..................................... 27
Expansion Options .......................................................................................... 28
Gigabit Interface Converters (GBICs) ......................................................... 28
CompactFlash .......................................................................................... 30
Content Addressable Memory (CAM) ....................................................... 30
Dual In-line Memory Modules (DIMMs) ..................................................... 30
Restricted Procedures ...................................................................................... 31
Installing CAM ......................................................................................... 31
Testing CAM ............................................................................................ 32
Installing DIMM ........................................................................................ 34
Testing DIMM ........................................................................................... 36
Diagnostics ............................................................................................... 37
Contacting Us ................................................................................................. 39