User Manual

If one of the optical conductors is down (as shown in the

diagram box below), the converter with LLR function will return

a no-link condition to its link partner. With LLCF function also

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.

Media

Converter

Management

Station

Switch/Hub

w/SNMP

Station

Media

Converter

Management

Switch/Hub

TP TP

Broken

Fiber

LFP ONLFP ON

l LED lit = established link ° LED unlit = no link

Port 2 Port 1

Link Loss Carried Forward

Link Loss Returned

Link Loss Carried Forward

Note

LFP function is turned off by default. This feature

can also be turned on via the DIP-switch. 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 reset the

converter to make it effective. Otherwise, please

put it in the default position.