Telephonic system
2
BASIC FUNCTIONS OF THE VIDEO DOOR ENTRY UNIT
2.2 SWITCHING ON SEVERAL MONITORS AT THE SAME TIME
When there is a door entry call, the monitors of the two programmed IS switch on and the
other telephones ring (if enabled for the door entry call). If the answer is from a video door
entry telephone, both the other and all the telephones are excluded.
A maximum of 2 monitors can be switched on at the same time, even in systems with
video expander item 335925.
General connection diagram to switch 2 monitors on at the same time
8
1..............
2..............
3..............
4..............
5..............
6..............
7..............
8..............
9..............
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 4 M P T R
230V a.c.
50-60Hz
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.
2
1
50-60Hz
OUT
336010
Power supply
2
1
230V a.c.
50-60Hz
In systems with Video Expander item 335925 the power supply
must always be connected to the Video Expander even if one
or both of the monitors to be switched on is connected to the
Video distributor item 335918.
To the analog or digital
floor distribution (riser OS)
Max 200 metres
Max 200 metres
Max 200 metres
Max 1 metre
Max 1 metre
Max 1 metre
Max 200 metres
Max 200 metres
MAIN IS
2nd MAIN IS
Note: Both monitors can be switched on at the same time
by installing the extra power supply, with any system layout.
All manuals and user guides at all-guides.com