3COM 1000BASE-SX User Manual
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2-Port1000BASE-SXand

® 2-Port1000BASE-LXGigabit

Ethernet Interface Modules Quick Start Guide

For the CoreBuilder9000 Enterprise Switch

Interface Modules The1000BASE-SXand1000BASE-LXGigabit Ethernet (GEN) InterfaceDescription Modules are2-portinterface modules for the CoreBuilder9000

Enterprise Switch. These GEN Interface Modules serve as a 2-Gigabitdata channel between the Gigabit Ethernet Switch Fabric Module and other IEEE802.3z-compliantGigabit Ethernet devices.

Key Features The GEN Interface Modules support the following key features:

Two front panel IEEE 802.3z–compliantGigabit Ethernetfiber-opticports that connect to a dedicated,non-blocking,redundant Gigabit Ethernet backplane channel

850nm multimode support on the 1000BASE-SXGEN Interface Module

1300nm single-modesupport on the1000BASE-LXGEN Interface Module

Management using the CoreBuilder 9000 Administration Console (a command line interface) or Simple Network Management Protocol (SNMP) applications by connecting through the Gigabit Ethernet Switch Fabric Module

2 2-PORT1000BASE-SX AND2-PORT1000BASE-LX GIGABITETHERNETINTERFACEMODULESQUICKSTARTGUIDE

As shown in Figure 1, GEN Interface Modules are available in two models:

1000BASE-LX(order number 3CB9LG2SC). Ports on this module use a1300-nanometer,multimode/single-mode,optical transceivers (colored blue) and SC connectors.

1000BASE-SX(order number 3CB9LG2MC). Ports on this module use an850-nanometer,multimode, optical transceivers (colored black) and SC connectors.

Figure 1 Front Panels of the GEN Interface Modules

Ejector handle

Ejector handle

Module Status LED

 

 

 

Port Status LEDs

 

 

 

 

 

Fiber-opticports

 

 

 

 

 

 

 

 

 

 

(SC connectors)

Model number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000BASE-LX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MOD

STAT

 

1

2

 

TX

RX

TX

RX

12

3CB9LG2SC

MOD

STAT

 

1000BASE-SX

TX

RX

TX

RX

1

2

 

 

1

2

3CB9LG2MC

Each GEN Interface Module has two ports on the front (see Figure 1) as well as two ports on the rear of the module (not shownin Figure 1) that connect to the chassis backplane. Because the front ports have apass-throughfunction to the rear ports, they share port numbers

1 and 2 with the rear ports.

In the 16-slotchassis, you install modules vertically with the LEDs at the top. In the7-slotchassis, you install modules horizontally, as shown inFigure 1.