3Com CoreBuilder 5000 Mulai Cepat dan Referensi - Halaman 14

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Halaman Cetak

UILDER ®

5000 S

ORE

15.0

FDDI SwitchModules Front Panel

Features

This section describes the FDDI ports and LEDs on the

following SwitchModules:

2-Port FDDI SwitchModule

12-Port FDDI Concentrator SwitchModule

See Section 10.0 for a description of the PacketChannel

LED, Module Status LED, and Reset button.

15.1 LEDs

FDDI LEDs are green only (not yellow). The following table

explains the FDDI port status LED blink sequences:

Port Status LED State

Indicates

Green On

Port is enabled and ring is operational.

Green Blinking

Port is connecting.

Off

Port or port functions are disabled.

15.2 Ports

FDDI SwitchModules support the following port

configurations:

2-Port FDDI SwitchModule — Supports 2 DAS (A/B)

ports with MIC connectors.

12-Port FDDI Concentrator SwitchModule — Supports

2 DAS (A/B) ports and 8 Master (M) ports with

MIC connectors. Each side of the FDDI Concentrator

SwitchModule is a Dual Attachment Concentrator

(DAC), which is composed of 4 M ports and an A and B

port pair that is connected to a single MAC.

15.3 Optical Bypass Connector

FDDI SwitchModules support one optical bypass connector

per port. Use the optical bypass connector to preserve a

dual FDDI ring in the event of a station failure. The optical

bypass connector accepts an optical bypass switch of type

AMP FOTP-34 Method B using a mini-DIN connector.

WITCH

ODULE

UICK

TART AND

EFERENCE

MIC

connectors

OPTICAL

BYPASS 1

OPTICAL

BYPASS 2

6604M-F-A

2-Port FDDI

SwitchModule

Model Number

3C96604M-F-A

FDDI Port Status LEDs

OPTICAL

BYPASS

6612M-FC-A

12-Port FDDI

Concentrator

SwitchModule

Model Number

3C96612M-FC-A