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Table 7. 400-4FX MDA / 8100-4FX MDA Description
Item Label Description
1 Link Communications link LEDs (green):
On: Valid communications link.
Off: Invalid communications link or no
connection to this port.
Blinking: The corresponding port is
management disabled.
2 F Dx Full-duplex port status LEDs (green):
On: The corresponding port is in
full-duplex mode.
Off: The corresponding port is in
half-duplex mode.
3 Activity Port activity LEDs (green):
Blinking: Indicates the network activity
level for the corresponding port. A high
level of network activity can cause LEDs
to appear to be on continuously.
4 100BASE-FX port connectors:
Models 400-4FX and 8100-4FX use MT-RJ
connectors.