In the topology presented, video distributor not required when loop-
ing through the 2-wire bus.
ET
ET
ET
V
1288 00
“Loop-through” solution
“Loop-through” solution.
“Branch line” solution. g.: 1226 00.6 0.613
Gira electrical installation systems
Video installation scenarios Door communication
I
Technical
information
Video
V
1288 00
(A)
“Branch line” solution. (A) video distributor order no. some installation scenarios, video dis-
tributor required with “loop-through”, e.
A video distributor must used the node realise defined line ter-
mination.
Connection home stations with the
“loop-through” solution
Connection the door station with the
“loop-through” solution
.8mm wire
diameter). several colour cameras
are used.
Connection home stations with the
“branch line” solution
Connection the door station with the
“branch line” solution
Cable lengths for video components
Without video amplifier, the maximum cable length from the first
camera the last home station 100 150m (for 0
