Poznámky redaktora
1222 00
Technical data
Ambient temperature: -25°C +70°C
Port: Screw terminals
Dimensions D): 27mm
Installation:
surface-mounted sur-
face-mounted junction box
-
flush-mounted deep flush-
mounted device box
-
on top-hat rail using included
DRA adapter
Device description
The video amplifier used extend the range Gira door communica-
tion systems with video function.
28 home stations, door stations with colour camera, video amplifier).6 0.
With video amplifier, the cable length between the door and home sta-
tion can extended 100 150m maximum 300m.
- maximum video distributors including video multiplexers can
be used one system. g.
Cable lengths
In systems with video components, the maximum total line length is
300m (distributed over several cable sections).6
mm/150
m
K
0.6 0.8mm wire diameter
A maximum video devices may connected cable section.: 1226 00.
(B) video amplifier order no. However, the maximum line lengths (from the control unit the
last device) may not exceeded.
The video amplifier increases the volume the incoming video signal to
the maximum permissible bus volume and outputs the output the
device.8
mm
(A)
(A)
(A)
(B)
(A) video distributor order no.: 1220 00.
Maximum line lengths with video components from the control unit to
the last device (when using the video amplifier):
-
100m with 0.8mmwire diam-
eter).
Example system with home stations and specification cable lengths.8mm wire diame-
ter). 100 0.
Bus_OUT
Connection the video amplifier home stations with video function.
Note
The video control unit can supply devices with electricity (e.
The lengths specified this example are the maximum line lengths per
section. doing so, the line attenuation from the source the video sig-
nal the input the video amplifier compensated.8 mm
max.6mm wire diameter
-
150m with 0.615
Gira electrical installation systems
Video Door communication
I
Technical
information
Video amplifier
Order No.
The video signal forwarded amplified state via Bus_OUT.
With video amplifier, the maximum cable length from the first camera
to the last home station 200 300m (for 0.6 mm/150 0.
max.
Connection terminals:
Bus_IN
Connection for the incoming video signal from door stations with video
function, DCS-camera-gateways DCS-IP-gateways.
.
- The video amplifier counts device.
100
m
K
0.
The number devices depends the number simultaneously called
up home stations with video function:
Home stations video per residential unit 3
Residential units 6
Home stations 18
The following rules apply:
- maximum devices can connected each cable section.
Without video amplifier, the maximum cable length from the first cam-
era the last home station 100 150m (for 0.
Because the video signal the video amplifier only routed one
direction from Bus_IN Bus_OUT, all devices which emit video signal
must connected Bus_IN via the Gira 2-wire bus
