GeneRAL RULes FoR InstALLAtIon
38
The wiring - Audio and video systems
2 WIRE AuDIO SYSTEMS
2 WIRE audio systems are installed by
shunting the 2 WIRE bus to connect
handsets and entrance panels
The devices can be connected to
any point of the system For the
connection of the devices it is not
necessary to use twisted cables
Audio system connection mode
VIDEO SYSTEMS
2 WIRE video systems must be fitted
mainly using a star wiring procedure,
using the 346841 floor shunt
In alternative, it is also possible to
install an in-out or mixed wire system
IN-OUT wiring
2 WIRE BUS
Apartment n
ON
Apartment 2
OFF
Apartment 3
OFF
Apartment 4
OFF
Apartment 1
STAR wiring (recommended)
ON
Apartment 2
ON
Apartment 3
ON
Apartment 4
ON
ON
Apartment 5
ON
Apartment 6
ON
Apartment 7
ON
Apartment 8
346841
346841
Handset
BUS
EP
Handset
POWER SUPPLY
Handset BUS
(from video adapter)