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Telephonic system
7.4 CONNECTIONS TO EXPANSIONS WITH PABX
All the basic functions offered by the PABX exchanges can also be expanded with the relevant
accessories (see telephone exchange items 335818 and 335828 manuals) in applications
with the Video distributor.
Diagram with relay expansion module for remote operation
7
INSTALLATION
56
335818
335828
Exchange
PRI
a b
1
a b
2
a b
3
a b
4
a b
5
a b
6
a b
7
a b
8
C
NO
a b
U2
a b
U1
3
3
4
4
M
M
P
P
T
T
R
R
1 2 3 4 7 8
1 2 3 4 7 8
3 4 M P T R
a b
An
Dg
2
1
a b
PS
230V 50Hz
1 2 3 4 5 6
1
7 8 1 2 3 4 5 6
2
7 8 1 2 3 4 5 6
1
7 8 1 2 3 4 5 6
2
7 8
335918
Video distributor
- +
1
2
230V a.c.
50Hz
230V a.c.
50-60Hz
6
max 1 metre
max 1 metre
max 1 metre
max 1 metre
ACTUATOR RELAY
ACTUATOR RELAY
1
1
T
T
T
T
P
P
M
M
12V~
12V~
C
C
C
C
1
1
2
2
3
3
4
4
IN
IN
OUT
OUT
335916
335916
P
P
ABX 28 D cod.
ABX 28 D cod.
335916
335916
1999 BXSP 031"Min.
1999 BXSP 031"Min.
Comunicazioni-DGCA
Comunicazioni-DGCA
B9743A
B9743A
9906 6
9906 6
6
6
A
A
2
2
A
A
M
M
COS
COS
=
=
0,5
0,5
max
max
16A
16A
230V~
230V~
C C 1 2 3 4
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