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Dialogic
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DSI SS7MD Programmer’s Manual Issue 3
•
source_st
,
source_ts
When
mode
is set to 11, these parameters give the source_st and source_ts for connection to the
specified local timeslots. For other modes the source_st and source_ts specify the cross connect switch
stream and timeslot, respectively.
6.3.8
MVD_MSG_SC_DRIVE_LIU – LIU Switch Initialization
Synopsis
Sets up a static switch path through the board between a CPU local bus timeslot and a switching channel.
Format
Description
This message is sent to connect selected CPU local bus timeslots from an T1/E1/J1 LIU or CPU stream to a
block of cross connect switch channels. Upon receiving this message, switch channels are prepared to make
a cross connect switch connection to outgoing CPU local bus timeslots upon receiving subsequent
MVD_MSG_SC_LISTEN
messages.
The confirmation message (if requested) indicates success with a
status
value of 0.
Parameters
•
liu_id
The identifier of the T1/E1/J1 Line Interface Unit (LIU) in the range 0 to one less than the number of
LIUs. This parameter can be set to a value of a CPU local bus streams in the range of 0x90 upwards,
where the number of CPU local bus streams equals one less than the number of LIUs. The timeslot value
0 to 31 in the ts_mask parameter correspond to the signalling processors signaling links.
•
sc_channel
The logical value of the first switch channel to be used. This should be in the range of 0 to the total
number of channels available on the board.
•
ts_mask
A 32-bit timeslot mask where each bit position represents a local stream timeslot to be connected to the
cross connect switch. The least significant bit (bit 0) represents timeslot 0. The arrangement of CPU local
bus stream timeslot connections to cross connect switch channels is controlled by the mode parameter.
MESSAGE HEADER
Field Name
Meaning
Type
MVD_MSG_SC_DRIVE_LIU (0x7e18)
Id
0
Src
Sending module's Id
Dst
MVD_TASK_ID
Rsp_req
Used to request a confirmation
Hclass
0
Status
0
Err_info
0
Len
10
PARAMETER AREA
Offset
Size
Name
0
2
liu_id
2
2
sc_channel
4
4
ts_mask
8
2
mode
