Specifications

Dialogic

DSI SS7MD Network Interface Boards Programmer's Manual Issue 4

Figure 1. Switch Connections

3.4.2 Static Initialization

Static initialization is handled by the s7_mgt protocol configuration utility. For each

T1/E1/J1 Line Interface Unit (LIU), the user should include an LIU_SC_DRIVE

command in the config.txt protocol configuration file. The LIU_SC_DRIVE command has

several parameters. The board_id and liu_id parameters together uniquely identify the

affected LIU. The sc_channel parameter is the channel number of the first channel on

the switch that is to be used for timeslots from the specified LIU. The ts_mask

parameter is a mask identifying which timeslots on the T1/E1/J1 interface are carrying

voice circuits (as opposed to signaling) and therefore need to be connected to the

switch. The least significant bit of ts_mask should be 0 when driving from a T1/E1/J1

interface.

As an example, consider a two board system where the first board has four E1 ports

and the second board has four T1 ports (timeslots are numbered on a per board basis).

LIU_SC_DRIVE 0 0 0 0xfffefffe * 30 E1 voice ccts on ts 1..15 & 17..31

LIU_SC_DRIVE 0 1 30 0xfffefffe * 30 E1 voice ccts on ts 1..15 & 17..31

LIU_SC_DRIVE 0 2 60 0xfffefffe * 30 E1 voice ccts on ts 1..15 & 17..31

LIU_SC_DRIVE 0 3 90 0xfffefffe * 30 E1 voice ccts on ts 1..15 & 17..31

LIU_SC_DRIVE 1 0 23 0x00fffffe * 23 T1 voice ccts on timeslots 1..23

LIU_SC_DRIVE 1 1 46 0x00fffffe * 23 T1 voice ccts on timeslots 1..23

LIU_SC_DRIVE 1 2 69 0x00fffffe * 23 T1 voice ccts on timeslots 1..23

LIU_SC_DRIVE 1 3 72 0x00fffffe * 23 T1 voice ccts on timeslots 1..23