Dialogic DSI SPCI Network Interface Boards Dokumentacja Pobierz pdf (Strona 72)

4 Message Reference

nfaw

The 8-bit value to be used for any E1 non-frame alignment word bit positions that are

not modified by other options. Normally, this parameter should be set to 0x9f for E1

operation and set to 0 for T1. When using unstructured frame format, this parameter

should be set to 0.

ais_gen

The (initial) mode used to generate the Alarm Indication Signal (Blue alarm). The user

may subsequently modify the setting of the outgoing signal using the

LIU_MSG_CONTROL message. The following table shows the permitted values and

their meanings.

Value

Description

Disabled; do not generate AIS/Blue alarm

Enabled; generate AIS/Blue alarm

When using unstructured frame format, this parameter should be set to 1.

rai_gen

The (initial) mode used to generate the Remote Alarm Indication (Yellow alarm). The

user may subsequently modify the setting of the outgoing RAI alarm using the

LIU_MSG_CONTROL message. The following table shows the permitted values and

their meanings.

Value

Description

Disabled; do not generate RAI/Yellow alarm

Forced active; generate RAI/Yellow alarm

Automatic generation of RAI/Yellow alarm upon loss of synchronization

Automatic generation of RAI/Yellow alarm upon loss of synchronization or BER greater than

1 in 1000 (BER3)

When using unstructured frame format, this parameter should be set to 1.

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 signaling 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.

sensitivity

The mode settings to configure interface sensitivity for monitoring purposes. The

following table shows the permitted values and their meanings.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 124 125

Brak uwag

Dialogic DSI SPCI Network Interface Boards Dokumentacja Strona 72