Welltech SPCI2S Intel NetStructure SS7 Boards Uživatelský manuál stáhnout pdf (Strana 78)

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2 Page 78

5.4.4 MTP Transfer Indication

Synopsis:

Primitive indication issued by MTP3 to convey a Message Signal Unit (MSU)

from the board to the appropriate user part.

Message Format:

MESSAGE HEADER

FIELD NAME MEANING

type API_MSG_RX_IND (0x8f01)

user_part_reference

src MTP_TASK_ID

dst

User Part Module ID

rsp_req

hclass

status

err_info

len

Number of MSU octets in parameter area

PARAMETER AREA

OFFSET SIZE NAME

0 len MSU data in binary format as received from

the network, commencing with the Service

Information Octet (SIO) and followed directly

by the Signalling Information Field (SIF). The

level 2 information (ie BIB, BSN, FIB, FSN LI

and FCS) is removed by the board.

Description:

This message is used to convey Message Signal Units received from the

network from the user part to the Message Transfer Part (MTP) on the board to

the user part on the host computer.

Messages will only be issued for user parts that were enabled during

configuration.

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Welltech SPCI2S Intel NetStructure SS7 Boards Uživatelský manuál Strana 78