THOMSON Amethyst III, User Manual, Page: 125 / 306

Chapter 3 ’Web Browser Interface’ — Interface Description
Amethyst III DTV Smart Switch 125
User Manual

IGMP : select a protocol version from the drop-down list. Possible
values are: no IGMP , IGMP v2 , IGMP v3 , IGMP v3 with source address.
 VLAN : Indicate if you want to get the stream from a VLAN. In this case
choose Define VLAN and set its identifier in the field. Otherwise
choose No VLAN .
T2-MI Area (Optional)

T2-MI Stream : if the input stream is a T2-MI stream, check this box and
indicate the PID that carries the T2-MI stream in the T2-MI PID field.
FEC Area (Optional)
 Activate FEC correction : check the box to activate the Forward Error
Correction on the IP input. The FEC matrix type and size will be
detected automatically.
You can perform FEC correction on several IP inputs of the
equipment, but you cannot perform simultaneously FEC correction
on inputs and FEC generation on outputs.
FEC correction might be temporarily deactivated if the input total
bitrate of session with FEC correction is too high. You can re-activate
it manually by clicking the
Reactivate FEC button.
Tests Area
 Associated group of tests : select the group of tests to carry out. These
groups of test can be configured from the Tests tab (refer to the
Section ’Tests Tab’ on page 174 for more information).