Nortel Networks 207344-B manual Table C-2. LEDs on the EtherSpeedII 100BASE-FX Switch Module

Using the Centillion EtherSpeedII Switch Modules

Table C-2 describes the operating conditions that cause the LEDs to light on the switch module.

Table C-2. LEDs on the EtherSpeedII 100BASE-FX Switch Module

Label	Color/Status	Meaning
LINK (port status)	Green	Link present
	Yellow	TX/RX activity
	Off	No link established
ERROR	Amber	Line error
		This port speed LED illuminates amber for the
		following reasons:
		•	Frame too long
		•	CRC errors
		•	Alignment errors

• Transmit and receive collisions (HDX mode)

C-4 207344-B