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Dialogic® Distributed Signaling Interface Components - Software Environment Programmer's Manual Issue 15
8.1.3
LIU_SC_DRIVE Command
Synopsis
This command is used during initialization to set up a static switch path through the
board between the Line Interface Unit (LIU) and the CT bus. It connects selected
incoming voice timeslots from an T1/E1 LIU to a sequential block of channels on the CT
bus and prepares the outgoing timeslots for subsequent use by the
MVD_MSG_SC_LISTEN message.
Note:
This command is only supported for SPCI and SS7HD product families.
Syntax
LIU_SC_DRIVE <board_id> <liu_id> <sc_channel> <ts_mask> {<mode>}
Example
LIU_SC_DRIVE 0 0 512 0xfffefffe
Parameters
<board_id>
The logical identity of the board in the range from 0 to one less than the number of
boards supported.
<liu_id>
The identifier of the T1/E1 Line Interface Unit in the range 0 to one less than the
number of LIUs supported (except for the SPCI2S board where the valid values are 2
and 3). This parameter can also be set to special values which are board specific.
For SPCI boards, value 0x83 selects the signaling processor instead of an LIU. In this
case timeslots 0 ... 3 in the ts_mask correspond to signaling processor 0…3.
For SS7HD boards, this parameter can also be set to one of the special values 0x90,
0x91, 0x92, and 0x93, depending on the number of signaling processors. In these
cases, the timeslots 0 to 31 in the <ts_mask> parameter correspond to the signaling
processor's signaling links.
<sc_channel>
The channel number of the first channel to be used on the CT bus. This must be in the
range from 0 up to one less than the total number of channels on the CT bus.
<ts_mask>
A 32 bit timeslot mask where each bit position is set to 1 if the corresponding timeslot
on the T1/E1 interface is required to be connected to the CT bus. The least significant
bit (bit 0) represents timeslot 0. Each timeslot for which the corresponding bit is set in
ts_mask is connected up to the CT bus; other timeslots are not affected in any way.
Timeslots containing SS7 signaling that are processed by the signaling processor on
the board should not be included in the timeslot mask. Usually the mask should be set
to include all bearer (voice) timeslots but no signaling timeslots. Bit 0 (corresponding
to timeslot 0 on the LIU) must not be set.
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