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Table 10.
450-1LR and 450-1LX 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
(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 (see
“1000BASE-LX Multimode Applications” on
page 42 for special requirements).