10/100Base-TX to 100Base-FX Redundant Media Converter User's Manual

18
Chapter 8 Loop Back Reply
The FT-1105A / FT-1205A supports auto loop back reply while
receive loop back test packets on ber port. Enable this function
to tell the converter to reply ber signals request from Web
Smart media converter, such as PLANET FT-90x. You can use
this to check whether the converter can communicate with
partner converter. Please refer to the following gure.
Note
For FT-1105A only, while enable the Loop Back
Reply function, the Port-2 (TP) must be link up.