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DSI SS7MD Network Interface Boards Programmer's Manual Issue 4

4.3.8 MVD_MSG_SC_CONNECT - Connect Request

Synopsis

Message sent to the board to control the switch path.

Format

MESSAGE HEADER

Field Name

Meaning

type

MVD_MSG_SC_CONNECT (0x7e1f)

src

Sending module ID

dst

MVD_module_ID

rsp_req

Used to request a confirmation.

hclass

status

err_info

len

PARAMETER AREA

Offset

Size

Name

local_stream

local_slot

mode

source_stream

source_slot

dest_stream

dest_slot

Reserved. Must be set to 0.

Description

This message is sent to the board to control the cross connect switch. Several different

actions can be performed depending on the value of the mode parameter. These

include:

• Cross connect switch to CPU local bus stream connection

• Local bus to cross connect switch connection

• Duplex connection between cross connect switch and CPU local bus stream

• Duplex connection between local bus timeslots

Attempting to use this message in a run mode where the cross connect switch is

disabled will result in a failure return code.

The confirmation message (if requested) indicates success with a status value of 0.

Parameters

The parameters that can be included in the MVD_MSG_SC_CONNECT message depend

on the requested mode. The following table depicts the parameters that are required

for each possible mode:

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 113 114

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