Nortel Networks 350 manual Figure B-4 BASE-LX MDA Front Panels, Table B-3 BASE-LX MDA Components

350-1LR MDA (1-port redundant)

Media Dependent Adapters

1 2

1000BASE-LX1000BASE-LX

TX RX TX RX

Link

Phy Select

Activity

350-1LR MDA

	4	3
350-1LX MDA	1	2
(single port)

1000BASE-LX

TX RX

Link

Phy

Activity

350-1LX MDA

43

BS35045A

Figure B-4. 1000BASE-LX MDA Front Panels

Table B-3 describes the 1000BASE-LX MDA components and LEDs.

For installation instructions, see “ Installing an MDA” on page B-11.

Table B-3. 1000BASE-LX MDA Components

Item	Label	Description
1	Link	Communication link LEDs (green):
		On: Valid communications link.
		Off: The communications link connection is bad or there is no connection to
		this port.
		Blinking: The corresponding port is management disabled.
2	PHY	Phy status LEDs (green):
	(or)
	Phy Select
		(continued)
304376-B Rev 00		B-9