Welltech SPCI2S Intel NetStructure SS7 Boards - Manual (Page 57)

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2 Page 57
5.3.5 LIU State Request
Synopsis:
Message sent by the application to read the current state of a Line Interface
Unit (LIU).
Message Format:
MESSAGE HEADER
FIELD NAME MEANING
type LIU_MSG_R_STATE (0x5e39)
id liu_id (0 .. 7)
src Sending Module ID
dst MVD_TASK_ID (0x10)
rsp_req
used to request a confirmation
hclass 0
status 0
err_info 0
len 1
PARAMETER AREA
OFFSET SIZE NAME
1 1 state
Description:
This message is sent to the board to read the current operating state of a Line
Interface Unit.
The user should always request a confirmation message. This will indicate
success by a status of 0 and will contain the current state in the parameter area
of the message.
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