User guide

August 2001 167

Switching Calls through the MVIP-90 Bus

Establishing Connections

Establish or disconnect an MVIP connection using the function

SET_OUTPUT. When the application calls SET_OUTPUT, it

specifies the stream and slot to connect as output and the

stream and slot to connect as input. It also specifies the timeslot

mode.

You can set the OutputParam_s.Mode field to either disable

mode, connect mode, or pattern mode.

When OutputParam_s.Mode is in CONNECT_MODE, use

SET_OUTPUT to connect the timeslot defined by

OutputParam_s.OutputStream and

OutputParam_s.OutputSlot to the timeslot defined by

OutputParam_s.InputStream and

OutputParam_s.InputSlot. This connection allows the

timeslot defined by OutputStream, OutputSlot to receive

data from the InputStream, InputSlot timeslot. To make a

bidirectional connection, swap the input and output

timeslots in the OutPutParam_s data structure and call

SET_OUTPUT again.

When OutputParam_s.Mode is in PATTERN_MODE,

SET_OUTPUT repeatedly transmits

OutputParam_s.Message to the timeslot defined by the

OutputParam_s.OutputStream and

OutputParam_s.OutputSlot.

When OutputParam_s.Mode is in DISABLE_MODE, use the

function SET_OUTPUT to disconnect the timeslot defined

by OutputParam_s.OutputStream and

OutputParam_s.OutputSlot from the MVIP bus and

internal streams. You cannot disconnect an ATSI

connection using

DISABLE_MODE. Instead, use PATTERN_MODE

and transmit a silence.