Welltech SPCI2S Intel NetStructure SS7 Boards User Manual
Page 52

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2
Page 52
ais_gen
The (initial) mode used to generate the Alarm Indication Signal (Blue Alarm)
taken from the following table. The user may subsequently modify the setting of
the outgoing signal using the LIU_MSG_CONTROL message.
ais_gen Description
1
Disabled - do not generate AIS / Blue alarm
2
Enabled - generate AIS / Blue alarm
rai_gen
The (initial) mode used to generate the Remote Alarm Indication (Yellow Alarm)
taken from the following table. The user may subsequently modify the setting of
the outgoing RAI alarm using the LIU_MSG_CONTROL message.
rai_gen Description
1
Disabled - do not generate RAI / Yellow alarm
2
Forced active - generate RAI / Yellow alarm
3
Automatic generation of RAI / Yellow alarm upon loss of
synchronisation
clear_mask
For use with T1 interfaces and line_code mode 3 (AMI with Zero Code
Suppression) to disable zero code suppression on selected channels. This
parameter is a 32 bit mask. Zero code suppression should always be disabled
for the signalling channel timeslot by setting the appropriate bit in the mask.
The least significant bit corresponds to timeslot 0 and the most significant bit to
timeslot 31. Bits should be set to 1 to disable zero code suppression.