Specifications

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DSI SS7HD Network Interface Boards Programmer's Manual Issue 11
97
4.4.2 API_MSG_RX_INDT - Timestamped Incoming Signaling Unit
Indication
Synopsis
Message generated by MTP2 when operating in monitoring mode conveying the
Signaling Unit and its time of reception on the board.
Format
MESSAGE HEADER
Field Name
Meaning
type
API_MSG_RX_INDT (0x8f0f)
id
l3_link_id/upper id
src
MTP2 module ID/ATM module ID
dst
User module ID
rsp_req
0
hclass
0
status
0
err_info
0
next
0
len
Number of octets in the Signaling Unit + 8
PARAMETER AREA
Offset
Size
Name
0
len - 8
Signaling Unit (SU) data in binary format.
len - 8
4
seconds
len - 4
4
seconds_fraction
Description
This message is used to convey the Signaling Units and a timestamp of when the
Signaling Unit was read from the network.
Parameters
The MTP_MSG_RX_INDT message includes the following parameter:
Signaling Unit Data
The Signaling Unit data in binary format, excluding the Flags and Checksum,
commencing with the Backwards Sequence Number (BSN).
seconds
The number of whole seconds elapsed since Epoch (00:00:00 UTC, January 1, 1900).
seconds_fraction
The fractions of seconds.