3Com 5000 quick start Mixed Technology SwitchModule Front Panel Features, Optical Bypass Connector

COREBUILDER® 5000 SWITCHMODULE QUICK START AND REFERENCE 13

14.0Mixed Technology SwitchModule Front Panel Features

This section describes the Fiber Distributed Date Interface (FDDI) ports and LEDs on the front panel of the following SwitchModules:

■10BASE-T and FDDI Mixed Technology SwitchModule

■10BASE-FB/FL and FDDI Mixed Technology SwitchModule

Section 11.0, "10BASE-T SwitchModule Front Panel Features", and Section 13.0, "10BASE-FB/FL SwitchModule Front Panel Features" describe the 10BASE-T and 10BASE-FB/FL ports, respectively. Section 10.0, "Common Front Panel Features" describes the PacketChannel and Module Status LEDs, and Reset button.

14.1 LEDs

FDDI LEDs are green only (not yellow). The following table explains the FDDI port status LED blink sequences and the 10BASE-T and 10BASE-FB/FL port status or activity LED blink sequences:

LED	State	Indicates
FDDI Port	Green On	Port is enabled and ring is
		operational.
	Green	Port is connecting.
	Blinking
	Off	Port or port functions are
		disabled.
10BASE-T Port	Green On	Port is enabled and link is OK.
	Green	Link failure or waiting for
	Blinking	network connection.
	Off	Port or port functions are
		disabled.
	Yellow	Heavy port traffic activity.
	On
	Yellow	Normal port traffic activity.
	Blinking
10BASE-FB/FL Port	Green On	Port is enabled and link is OK.
	Green	No light on receive fiber.
	1 Blink
	Green	Port received jabber.
	2 Blinks
	Green	Port is partitioned.
	3 Blinks
	Green	Remote fault.
	4 Blinks
	Off	Port or port functions are
		disabled.
	Yellow	Heavy port traffic activity.
	On
	Yellow	Normal port traffic activity.
	Blinking

MIC	FDDI Port Status
connectors	LEDs

A B A B

A A

B B

OPTICAL	OPTICAL
BYPASS	BYPASS

6614M-FTP-A 6612M-FF-A

10BASE-T and FDDI 10BASE-FB/FL and FDDI

SwitchModule SwitchModule

Model Number Model Number

3C96614M-FTP-A 3C96612M-FF-A

14.2 Ports

FDDI ports on mixed technology SwitchModules are Dual Attach Station (DAS) (A/B) ports that use MIC connectors.

14.3 Optical Bypass Connector

FDDI SwitchModules support one optical bypass connector per DAS 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.