Nortel Networks 302403-G manual 450-1SR / 450-1SX MDA description

Table 9 describes the 450-1SR MDA and the 450-1SX MDA front panel components.

Table 9 450-1SR / 450-1SX MDA description

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
		On: The corresponding Phy port is active.
		Off: The corresponding Phy port is in backup
		mode or there is no connection to this port.
3	Activity	Port activity LEDs (green):
		Blinking: Indicates network activity level for
		the corresponding port. A high level of
		network activity can cause LEDs to appear to
		be on continuously.
4		1000BASE-X SC port connectors.

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