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NovaTec
Mobile Gateway S20
4.11
Pin Assignment for Connections to the
NovaTec
Mobile Gateway S20
This chapter describes the signal assignment for all NovaTec
Mobile Gateway S20 plug
connections. This information will enable you to plug all your terminal equipment into the
NovaTec
Mobile Gateway S20.
4.11.1
CCU Pin Assignment
The contact pins in the plug are arranged in two rows (Row A and Row C) with each row
providing 32 contacts. As this plug is only equipped with every second contact there are
16 contacts per row and the contacts in each row are numbered from 2 to 32. The following
diagramm shows this in detail.
For directionally orientated signals the given signal direction is always
described from the perspective of the NovaTec
Mobile Gateway S20.
Picture 10:
CCU pin assignment
The majority of the 32 contacts are assigned with a signal. The following table shows the
signal assignment of the plug and the position of the coding switch in detail.
Picture 11:
Positioning of the CCU coding switch
Trunk and terminal
equipment interfaces
Light emitting
diodes
V.24
Centronics
12
3
4
OFF
12
3
4
OFF
12
3
4
OFF
12
3
4
OFF
Coding switch to activate/deactivate
the terminating resistor for the basic
rate interfaces
Basic
ra
te
in
terfa
ce
4
Basic
ra
te
in
terfa
ce
3
Basic
ra
te
in
terfa
ce
2
Basic
ra
te
in
terfa
ce
1
CCU
V24
Centronics
Trunk and terminal equipment
interfaces
Row A
Row C
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Reset button
Status display (LED)