Chorus Digital Vision - Technical System Manual
14
DESIGN
ATTENTION: the devices must only be installed by qualified personnel, observing the current regulations and
the guidelines for video entryphone installations.
By creating the system, it shall be observed the requirements for household devices set out by the national standards and rules applicable
to low-voltage electrical installations which are in force in the country where the products are installed, or, when there are none, following
the international standard for low-voltage electrical installations IEC 60364, or the European harmonization document HD 60364.
The Chorus video entryphone system is a digital system. Audio, video, information and commands are all transferred in the form of data
packages on an IP network.
In its standard form
1
, a video entryphone system consists of a front door unit, two apartment units, a switch for connecting these devices,
and a power supply unit to provide the 14.4V SELV supply voltage. The devices are connected to each other via Ethernet standard cables.
The power supply arrives directly to the front door units, while for the apartment units it is distributed by the switch, via the Ethernet
cables (PoL – Power over LAN). The switch has 4 PoL ports, and allows you to connect 4 devices that need to be powered (apartment unit,
camera interface or relay unit) in whatever combination you prefer. In addition to the PoL ports, the switch has two Ethernet standard
ports (not powered) that can be used to connect front door units, Vision Master, Internet Gateway, a programming PC, or other switches
(to expand the system). If extra LAN standard ports are needed, you can use the switch to disable the power supply on all the PoL ports or,
alternatively, add an
Ethernet 6-port LAN switch - DIN rail
(GW 38 371).
The switches are connected to each other in cascade form.
The camera interface and relay unit may also be powered from an external power supply unit.
IMPORTANT
: the order in which the various devices are connected has no effect on the operation. For example, apartment units
belonging to a single apartment can be connected to different switches, and front door units belonging to different staircases
can be connected to the same switch.
For further information about the connections, refer to the section
Connection diagrams
and the chapters
Types of electrical connections
and
Connecting the front door units.
1) In the case of a single-family system, there is another (reduced) configuration requiring only a front door unit, a single apartment unit,
and the power supply unit, but a special cable is needed to connect the front door and apartment units.
Reference Standards:
`
Technology and composition of the video entryphone system
`
Front door
unit
(FDU)
Switch
Power supply
Apartment
unit
(AU)
Apartment
unit
(AU)
SELV power supply
SELV power
supply
Standard Ethernet
PoL Ethernet
PoL Ethernet
Summary of Contents for Chorus Digital Vision
Page 1: ...Video Entryphone Technical Manual ...
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