Elvox 6680 - Wiring Diagram Variations - Coax Cable; Variation 22: Video Distributor Type 5556;004

28
STANDARD VIDEO DOOR ENTRY SYSTEM WIRING DIAGRAM VARIATIONS
WITH COAX CABLE
M
V3
13
V1
V2
V
M
11
13
12
V
M
11
13
12
V
M
11
13
12
M
V3
13
V1
V2
M
V3
13
V1
V2
V2
M
V1
75ohm
V3
M
VV4V3V2V1V -+ - +U +I B CAD
PRI
mho57
75ohm
mho57
V2
M
V1
V3
M
V2
M
V1
V3
M
V
+T
-
To power supply
type 6680
Power supply
type 6582
Distributor
type 5556/004
Mains
Monitor terminals
series Petrarca
Monitor terminals
series 6300-6500
Monitor terminals
series Petrarca
Monitor terminals
series Petrarca
Monitor terminals
series 6300-6500
Monitor terminals
series 6600
Monitor terminals
series 6300-6500
Monitor terminals
series 6600
Monitor terminals
series 6600
N.B. In power supply type 6582 short circuit terminals A-B-D.
VARIATION 22
Wiring diagram of video distributor type 5556/004 for several cable risers.
The video connection must be made using a RG59 type cable or one similar with an impedance of 75 Ohm.
75 Ohm resistors (supplied) must be wired across video outputs V1-V2-V3-V4. These resistors must be wired to the output ter-
minals not used or terminals V2-M on the last riser monitor. A 75 Ohm resistor must also be wired to the “V” voltage-free termi-
nal on the last distributor.
N.B. Video distributor type 5556/004 is equipped with trimmer P1 which simultaneously adjusts the video signal gain at all the
outputs. This trimmer is factory-set to 1.