AT-8000 Series Fast Ethernet Switches Installation Guide

5

Duplex Mode..................................................................................................................................................................................................24

Maximum Distance......................................................................................................................................................................................24

Type of Cabling .............................................................................................................................................................................................25

Auto MDI/MDI-X ...........................................................................................................................................................................................25

Port Pinouts ....................................................................................................................................................................................................25

10/100/1000Base-T Twisted Pair Ports .........................................................................................................................................................26

Type of Connector........................................................................................................................................................................................26

Speed................................................................................................................................................................................................................26

Duplex Mode..................................................................................................................................................................................................26

Maximum Distance......................................................................................................................................................................................26

Type of Cable .................................................................................................................................................................................................26

Auto MDI/MDI-X ...........................................................................................................................................................................................27

Port Pinouts ....................................................................................................................................................................................................27

Gigabit Interface Converter (GBIC) Expansion Slots ................................................................................................................................28

Module Expansion Slots ....................................................................................................................................................................................29

Twisted Pair Port LEDs and the LED Mode Select Button ......................................................................................................................30

Fiber Optic Port LEDs ..........................................................................................................................................................................................32

System LEDs ...........................................................................................................................................................................................................34

RS-232 Terminal Port ..........................................................................................................................................................................................35

Reset Button ...........................................................................................................................................................................................................36

RPS Connector .......................................................................................................................................................................................................37

AC Power Connector ...........................................................................................................................................................................................38

DC Power Connector ..........................................................................................................................................................................................39

A Few Basics about Ethernet Switching .......................................................................................................................................................40

MAC Address Table......................................................................................................................................................................................40

Duplex Mode..................................................................................................................................................................................................41

Store and Forward........................................................................................................................................................................................42

Backpressure and Flow Control ..............................................................................................................................................................42

Network Topologies ............................................................................................................................................................................................43

Power Workgroup Topology....................................................................................................................................................................43

Collapsed Backbone - Hub Topology....................................................................................................................................................44

Mixed Topology............................................................................................................................................................................................45

Collapsed Backbone - Switch Topology...............................................................................................................................................46

Chapter 2

Installation ............................................................................................................................................................................................................47

Reviewing Safety Precautions .........................................................................................................................................................................48

Selecting a Site for the Switch .........................................................................................................................................................................49

Planning the Installation ...................................................................................................................................................................................50

Unpacking the Switch ........................................................................................................................................................................................52

Installing the Switch in a Rack .........................................................................................................................................................................53

Installing an Optional GBIC Module ..............................................................................................................................................................55

For the AT-8024GB.......................................................................................................................................................................................55

Installing an Optional Expansion or Stacking Module ...........................................................................

................................................57

For the

AT-8012M,

AT-8012M-QS, AT-8016F/xx, AT-8024M, and AT-8088/xx......................................................................................................................57

Installing an Optional AT-RPS3004 Redundant Power Supply ............................................................................................................60

For the AT-8016F/xx, AT-8088/xx, and AT-8024M............................................................................................................................60

Cabling and Powering ON the Switch ..........................................................................................................................................................63

Wiring a DC Powered Unit ................................................................................................................................................................................68

Starting a Local Management Session .........................................................................................................................................................71

Warranty Registration .........................................................................................................................................................................................74

Chapter 3