LLR (Link Loss Return)
When a device connected to the converter and the fiber
line loss the link, the converter’s fiber will disconnect
the link of transmit.
There is a switch to enable or disable the function of the
media converter.
The table below shows how LLR function is working:
Media Converter
LLR
Auto-Negotiation
A
ON
OFF
B
OFF
OFF
Fiber
Copper
TX RX
Gig a b it Switc h
LINK 4
LINK 1
Ca b le 1
Ca b le 2
Me d ia
Co nve rte r B
Fiber
Copper
TX RX
Gig a b it Switc h
LINK 2
LINK 3
Ca b le 3
Ca b le 4
Me d ia
Co nve rte r A
Copper
Copper
Link Status
Disconnect
Link 1
Link 2
Link 3
Link 4
Cable 1
Off
Off
Off
Off
Cable 2
Off
On
On
Off
Cable 3
Off
Off
Off
Off
Cable 4
Off
Off
Off
Off
NOTE: If connecting two converters with LLR function in both end, it is
recommended that the monitor end converter had to turn off the LLR
function, and turn on the LLR function of the remote end converter.
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