D-Link 1000BASE-TX to 1000BASE-SX/LX Media Converter User Manual page 8

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