Allied Telesis AT-MMC200/LC, Руководство по установке

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Chapter 1: Overview
32
Figure 16 shows media converter and end node LINK/ACT LED behavior
with SML off with a copper connection down.
Figure 16. Copper Connection Down with SML Off
Standalone
Media Converter
in SML Mode
Following are example scenarios with one SML enabled media converter
connected between two end nodes.
Figure 17 shows media converter and end node LINK/ACT LED behavior
with SML enabled under normal conditions.
Figure 17. SML in Normal Condition
Figure 18 shows media converter and end node LINK/ACT LED behavior
with SML enabled with a fiber connection down.
Figure 18. SML with Fiber Connection Down
Figure 19 shows media converter and end node LINK/ACT LED behavior
with SML enabled with a copper connection down.
Figure 19. SML with Copper Connection Down
End Node
Copper Cable Fiber Cable
Link LED Off
End Node
Link LED On
AT-MMC2000 V2
Copper
LINK/ACT
LED
Off
Fiber
LINK/ACT
LED
On
Link Down Link Up
SML Off
AT-MMC2000
End Node Copper Cable
Fiber Cable
Link LED On
End Node
Link LED On
Copper
LINK/ACT
LED On
Fiber
LINK/ACT
LED On
Link Up Link Up
AT-MMC2000
End Node Copper Cable
Fiber Cable
Link LED Off
End Node
Link LED Off
Copper
LINK/ACT
LED
Blinking
Fiber
LINK/ACT
LED
Off
Link Down Link Down
End Node
Copper Cable Fiber Cable
Link LED Off
End Node
Link LED Blinking
AT-MMC2000
Copper
LINK/ACT
LED
Off
Fiber
LINK/ACT
LED
Blinking
Link Down Link Up/Down
*
*
This behavior may cause problems with some switches.
See Figure 12
on page 27
for more information.