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6 liu ct bus initialization request – Dialogic DSI SPCI Network Interface Boards User Manual

Page 62

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6 Message Reference

62

Parameter Description:

state
The current state of the LIU from the following table:

State

Description

0 OK

1 PCM

Loss

2 AIS

3 Sync

Loss

4 Remote

Alarm

Status Response
The confirmation message (if requested) indicates success by status of zero.

On error, the following status values can be found in the confirmation

message.

Value

Mnemonic

Description

0x01

None

Invalid framer ID.

0xff

None

Invalid message length.

6.3.6

LIU CT bus Initialization Request

Synopsis:
This message is sent to the board at initialization time to set up a static

switch path through the board between the Line Interface Unit (LIU) and the
CT bus. It connects selected incoming voice timeslots from a T1/E1 LIU to a
sequential block of channels on the CT bus and prepares the outgoing

timeslots for subsequent use by the MVD_MSG_SC_LISTEN message.

Note: When using s7_mgt, this message is generated by s7_mgt as a result of the

LIU_SC_DRIVE command. It therefore does not need be generated by the user.