Allied Telesis AT-MMC200/LC, Installation Manual

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Chapter 1: Overview
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To solve the above situation, ML is added to V3 series media converters,
intended for use in standalone.
Figure 13 illustrates the V3 series media converter in standalone in the ML
mode. When the copper link fails, the fiber link goes down.
Figure 13. Standalone with ML When Copper Link is Down
Note
For detailed information about ML, see “Missing Link (ML)” on
page 34.
Except the ML mode and DIP switch markings, the MMC2000/200 V2 and
V3 series media converters are the same.
Differences
Between V2 and
V3
To find out the version number of your media converter, see the DIP
switch markings on the bottom panel as shown in Figure 6 on page 19 and
Figure 7 on page 19.
Table 6 summarizes the differences between V2 and V3.
End Node
Copper Cable Fiber Cable
Link LED Off
End Node
Link LED Off
MMC2000/200 V3
Copper
LINK/ACT
LED
Off
Fiber
LINK/ACT
LED
Blinking
Link Down Link Down
ML On
Table 6. Differences between V2 and V3
DIP Switch SML ML
V2 Media Converters Supported N/A
V3 Media Converters Supported Supported