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4 3h08-04 fe switch module, 1 connectors, 2 leds – Cabletron Systems 3H02-04 User Manual

Page 13: 3 offline button, 3h08-04 fe switch module -5 1.4.1, Connectors -5, Leds -5, Offline button -5, Status leds offline button fiber connectors

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3H08-04 FE Switch Module

FE Switch Module User Guide

Page 1-5

1.4 3H08-04 FE SWITCH MODULE

The 3H08-04 (Figure 1-3) provides connection for four independent
100BASE-FX LANs to the ATX backplane and packet processing engine
(PPE). It includes processing circuitry for receiving and forwarding
packets between the connected 100BASE-FX LANs within each module.
The 3H08-04 contains several LEDs to indicate the module’s operational
status.

The 3H08-04 supports fiber optic and the IEEE 802.3 100BASE-FX
specification.

1.4.1 Connectors

The 3H08-04 includes four pairs of fiber optic socket connectors for fiber
optic cabling. Receive (RX) and transmit (TX) connectors are clearly
marked on the front panel of the module. The ATX power supply
provides the power for the module.

1.4.2 LEDs

The 3H08-04 contains a total of 14 green LEDs labeled LINK, RX, and
TX for each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.

1.4.3 Offline Button

Use the offline button before swapping the module, to take it offline until
the replacement is installed.

Figure 1-3

3H08-04 Front Panel

OFFLINE

RX

LK

TX

QUAD FAST ETHERNET / 802.3 100BASE-FX

TX

RX

SEGMENT 4

SEGMENT 3

SEGMENT 2

SEGMENT 1

RX

LK

TX

RX

LK

TX

RX

LK

TX

PROC

PWR

TX

RX

TX

RX

TX

RX

Status LEDs

Offline Button

Fiber Connectors

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