Planet IGTP-802T User Manual page 30

Management Switch/Hub
Station w/SNMP
 LED lit = established link
If one of the optical conductors is bad (as shown in the diagram box
below), the converter with LLR enabled will return a no-link condition
to its link partner. With LLCF also default enabled, the no-link condition
is carried forward to the switch/hub where a trap is generated to the
management station, and the administrator can then determine the
source of the loss.
Management Switch/Hub
Station w/SNMP
Link Loss Carried Forward
 LED lit = established link
The converter is shipped with the default LFP (LLCF/
LLR) function which is disabled. This feature can also
be turned on on-purpose. If you are familiar with the
network installation and for diagnostic purpose (i.e.
check which end is broken), you can turn it on and the
Note
converter will take effect immediately. Otherwise, please
put it in the default position.
30
Media
Converter
LFP ON
Fiber
Cable
 LED unlit = no link
Media
Converter
LFP ON
Broken
TP
Fiber
Port 2
Link Loss Returned
 LED unlit = no link
Media
Switch/Hub
Converter
LFP OFF
Media Management
Converter Switch/Hub
LFP ON
TP
Port 1
Link Loss Carried Forward
Station
Station