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DSI SS7MD Network Interface Boards Programmer's Manual Issue 4

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

Disabled (used to deactivate a LIU). In this mode, the LIU does not produce an output

signal.

E1 120 ohm balanced interface

T1 (including J1)

E1 120 ohm balanced interface

line_code

The line coding technique. The following table shows the permitted values and their

meanings.

Value

Description

HDB3 (E1 only)

AMI

B8ZS (T1/J1)

frame_format

The frame format. The following table shows the permitted values and their meanings.

Value

Description

E1 double frame (E1 only)

E1 CRC4 multiframe (E1 only)

F4 4-frame multiframe (T1 only)

D3/D4 (Yellow alarm = bit 2 in each channel (T1 only)

ESF (Yellow alarm in data link channel) (T1 only)

F72/SLC96 (72-frame multiframe) (T1 only)

J1 frame format (liu_type must be 4 [T1])

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Dialogic DSI SS7MD Spezifikationen Seite 41