SENTRY1 TECHNICAL MANUAL VER1.6
Note: Additional cores may be required for auxiliary items such as push to exit buttons,
fireman switch proximity access control etc..
The block diagram above shows all videophones coming back to one point with all the
video distributors at that point. It is also possible to spread the video distributors around
the building (Please see wiring diagrams for more information).
Connections from the door panel to the control cabinet.
(NOTE: Additional connections may be needed for fireman switches keypads, proximity etc)
Connections 50m 100m 200m 300m 400m
Amp 1
0.25mm²
0.35mm² 0.5mm²
0.75mm²
1.0mm²
Amp 2
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Amp 3
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Amp 4
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
CB
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Selects 1-n
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Trade
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Trade
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Lock
0.5mm² 0.75mm² 1.5mm² 2.0mm² 2.5mm²
Lock
0.5mm² 0.75mm² 1.5mm² 2.0mm² 2.5mm²
V*
Standard quality Medium quality Good quality Good quality High quality
M*
75Ω Coax cable 75Ω Coax cable 75Ω Coax cable 75Ω Coax cable 75Ω Coax cable
I (+20)*
0.35mm² 0.5mm² 1.0mm² 1.5mm² 2.0mm²
F1 (Vid 0V)*
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
SB (+12V)*
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
* These lines are only required on video systems.
V is the centre core of the coax and M is the screen.
For best performance, keep the distance between the door panel and the control cabinet to a minimum.
Connections from the control cabinet to the apartment.
Connections
50m 100m 200m 300m 400m
1
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
2
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
-
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
4(T)
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
5(P)
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
6(C)
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
D*
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
+12*
0.35mm²
0.35mm² 0.5mm²
0.75mm²
1.0mm²
V(11)**
Standard quality Medium quality Good quality Good quality High quality
M(12)**
75Ω Coax cable 75Ω Coax cable 75Ω Coax cable 75Ω Coax cable 75Ω Coax cable
+20**
0.35mm² 0.5mm² 1.0mm² 1.5mm² 2.0mm²
Vid Gnd**
0.35mm² 0.5mm² 1.0mm² 1.5mm² 2.0mm²
+12OUT**
0.35mm² 0.5mm² N/A N/A N/A
T(16)**
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
1T(17)**
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
2T(18)**
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
* Only required on phones with privacy and/or door monitoring.
** Only required on videophones
V is the centre core of the coax and M is the screen.
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