Specifications

Dialogic
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DSI SS7MD Network Interface Boards Programmer's Manual Issue 4
41
Parameters
A description of the permitted parameter values are given below. When the board is
initially configured, the LIUs are initialized to a disabled condition. The message
includes the following parameters:
liu_type
The physical interface type according to the following table. The preferred method for
configuring an E1 interface is to set a value of 5.
Value
Description
1
Disabled (used to deactivate a LIU). In this mode, the LIU does not produce an output
signal.
3
E1 120 ohm balanced interface
4
T1 (including J1)
5
E1 120 ohm balanced interface
line_code
The line coding technique. The following table shows the permitted values and their
meanings.
Value
Description
1
HDB3 (E1 only)
2
AMI
4
B8ZS (T1/J1)
frame_format
The frame format. The following table shows the permitted values and their meanings.
Value
Description
1
E1 double frame (E1 only)
2
E1 CRC4 multiframe (E1 only)
3
F4 4-frame multiframe (T1 only)
4
D3/D4 (Yellow alarm = bit 2 in each channel (T1 only)
7
ESF (Yellow alarm in data link channel) (T1 only)
8
F72/SLC96 (72-frame multiframe) (T1 only)
9
J1 frame format (liu_type must be 4 [T1])