Missing Link (Ml); Standalone Media Converter In Ml Mode; Figure 21: Ml In Normal Condition; Figure 22: Ml With Fiber Connection Down - Allied Telesis DMC1000/100 Series Installation Manual

Missing Link (ML)

Standalone
Media Converter
in ML Mode
The DMC1000/100 V2 series media converters offer the Missing Link
(ML), which is intended for use when the V2 media converter is connected
standalone between a fiber endpoint and copper endpoint.
Note
To find out whether your device is V1 or V2, see "Differences
Between V1 and V2" on page 25.
Following are example scenarios for the media converter in the ML mode,
connected standalone between two end nodes.
Note
This section applies only to the DMC1000/100 V2 media converter.
The DMC1000/100 V1 media converter does not have the ML mode.
Figure 21 shows media converter and its LINK/ACT LED behavior in the
ML mode under normal conditions.
End Node
Copper Cable
Link Up
Link LED On
Figure 22 shows media converter and its LINK/ACT LED behavior in the
ML mode when a fiber connection is down.
When a fiber connection to the media converter fails, the fiber LINK/ACT
LED is turned off. The copper port LINK/ACT LED blinks slowly and the
copper link goes down.
End Node
Copper Cable
Link Down
Link LED Off
Figure 22. ML with Fiber Connection Down
DMC1000/100 Series Media Converters Installation Guide
AT-DMC1000
Copper Fiber
LINK/ACT LINK/ACT
LED On LED On
Figure 21. ML in Normal Condition
AT-DMC1000
Copper Fiber
LINK/ACT LINK/ACT
LED LED
Blinking Off
End Node
Fiber Cable
Link Up
Link LED On
End Node
Fiber Cable
Link Down
Link LED Off
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