Elvox 6901 - Page 27

GB
27
B
A
A
A
Fig. 6.2
Fig. 6.3
A-B-C connectors
for stabilisation of the video signal
RESET push-button
Removable connection terminal block
Connection terminal block
+12, CH) Additional ringtone connection.
1, 2) BUS line.
E+, E- ) Additional supply voltage for video-interphone with power
supply type 6923.
FP, M) Connection for landing call push-button.
Colour adjustment
trimmer
VIDEO SIGNAL STABILISATION
On the rear of monitor type 7211 there
are some connectors (A-B-C) for the
video signal stabilization.
This jumper must be used in installa-
tions with several appliances (interpho-
nes and monitors) connected in series
(Fig. 30).
In series configuration displace the jum-
per (only in the last set) into “B” position
and keep the jumpers of other interpho-
nes or monitors in the initial position, i.e.
“A” (Fig. 30).
For other wiring configurations see note:
"Bus termination for ELVOX TWO-WIRE
installations" provided below, in the wi-
ring diagrams section (Page. 27).
A-B-C connectors
for stabilisation of the video signal