Gira 1288 00, Руководство по эксплуатации

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13
The video control device
The video control device is the main power supply of the Gira
door communication system.
The video control device assumes the following tasks in the
Gira door communication system:
• provision of the bus voltage (26 V DC ± 2 V) for the door
communication system.
• Power supply for up to 2 colour cameras,
up to 4 colour cameras (2 with additional power supply) can
be operated per video control device.
• Power supply of call button illumination
(max. 15, the number of call button illuminations that can
be supplied is dependent on the system size and the num-
ber of home stations operation in parallel).
• provision of door opener control, including power supply
(12 V AC, 1.1 A) of the door opener.
• activation of the programming mode from the entire door
communication bus system.
Additional product features of the control device:
• In audio systems: Up to 70 audio devices, e.g.
1 built-in speaker with 5 add-on modules,
68 surface-mounted hands-free feature home station.
• In video systems: up to 28 home stations with TFT display
and two door stations with colour cameras, with max. three
parallel home stations, can be connected.
• Electronic overload and short-circuit protection.
• electronic excess-temperature protection.
• overload/short-circuit LED indicator.
• LED operation indication for determination of whether or
not mains voltage is active.
Parallel home stations with TFT display
If parallel home stations with TFT display are used, one dis-
play must be defined as the main display and the others as
secondary displays.