Welltech SPCI2S Intel NetStructure SS7 Boards - Manual (Page 85)

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2 Page 85
5.5.4 LIU Status Indication
Synopsis:
Message issued by the board to notify of changes of LIU status.
Message Format:
MESSAGE HEADER
FIELD NAME MEANING
type MVD_MSG_LIU_STATUS (0x0e01)
id liu_id
src MVD_TASK_ID
dst MGMT_TASK_ID
rsp_req
0
hclass 0
status liu_status (see below)
err_info Reserved for future use
len 0
Description:
This message is issued by the board for every change of state on the trunk
interface.
Parameter Description:
liu_id:
The identity of the Line Interface Unit to which the status indication applies.
liu_status The status field in the message header is coded as follows:
Value Mnemonic State
10 LIUS_SYNC_LOSS Frame Sync Loss
11 LIUS_IN_SYNC Frame Sync OK
12 LIUS_AIS AIS Detected
13 LIUS_AIS_CLRD AIS Cleared
14 LIUS_REM_ALARM Remote Alarm
15 LIUS_REM_ALM_CLRD Remote Alarm Cleared
20 LIUS_PCM_LOSS
PCM Loss
21 LIUS_PCM_OK PCM Restored
22 LIUS_FRAME_SLIP Frame Slip
25 LIUS_BER5_OCRD BER > 1 in 100,000
26 LIUS_BER5_CLRD BER5 cleared
27 LIUS_BER3_OCRD BER > 1 in 1,000
28 LIUS_BER3_CLRD BER3 cleared