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
Fib e r
C o p p e r
TX RX
Gig a b it Switc h
LINK 4
LINK 1
C a b le 1
C a b le 2
Me d ia
C o nve rte r B
Fib e r
C o p p e r
TX RX
Gig a b it Switc h
LINK 2
LINK 3
C a b le 3
C a b le 4
Me d ia
C o nve rte r A
C o p p e r
C o p p e r
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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