D-Link 1000BASE-TX User Manual page 8

The table below shows how LLCF function is working:
Me d ia
C o nve rte r A
LINK 2
Fib e r
TX RX
C o p p e r
C a b le 1
C a b le 2
LINK 1
RX T X
Gig a b it S witc h
Link Status
Link 1
Disconnect
Cable 1 Off
Cable 2 Off
Cable 3 On
Cable 4 Off
Cable 5 Off
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
A
B
Me d ia
C o nve rte r A
LINK 2
Fib e r
C o p p e r TX RX
C a b le 3
LINK 3
C o p p e r
Gig a b it Switc h
Me d ia
C o nve rte r B
LINK 3
Fib e r
C o p p e r T X RX
C a b le 5
C a b le 4
C a b le 3
LINK 4
RX TX
Gig a b it S witc h
Link 2 Link 3 Link 4
On On On
Off Off Off
On On Off
Off Off Off
Off Off Off
LLR Auto-Negotiation
ON OFF
OFF OFF
Me d ia
C o nve rte r B
LINK 1
Fib e r
T X RX C o p p e r
C a b le 1
C a b le 2
C a b le 4
LINK 4
C o p p e r
Gig a b it Switc h
8