Nortel Networks 450 - Manual (Page 254)

Using the BayStack 450 10/100/1000 Series Switch
C-8 302401-D Rev 00
Table C-3. 1000BASE-SX 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
(or)
Phy Select Phy status LEDs (green):
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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