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Table 10 describes the 450-1LR MDA and the 450-1LX MDA
front-panel components.
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.
2PHY
(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 30 for special requirements).