Wiring Connections
Page 23
BATT + & -
Factory fitted Sealed Lead Acid battery connections. The GardTec 872 is suitable for
the installation of all the popular sizes of alarm batteries. Suggested sizes would be:-
12V 1.2Ah Suitable only for the smallest installations.
12V 2.0Ah Suitable only for small installations.
12V 3.0Ah Suitable for small to medium size installations.
12V 7.0Ah Suitable for all installations.
Reference should be made to current policies to determine the actual battery capacity
requirements for your system. As a general rule:-
Calculate the total quiescent current draw of the system including
control panel, RKPs, communicator, detectors and any other
auxiliary equipment then use this in the equation shown:-
Quiescent Current x 8 hours = Minimum Battery Size
(May change with new European Standards)
The actual size of the battery should be made up to the nearest size available.
K/S
Keyswitch input. If required the GardTec 872 may be operated by a keyswitch.
Operation is by applying 12V to this terminal (see Fig. 14). The mode of operation is
dependent on how the keyswitch option is programmed (refer to Programmable
Options Description and also see Remote Reset). Keyswitch will set all areas refer to
Zone Type Keyswitch option for area Keyswitch.
Note:- GardTec 872 zones may also be programmed for keyswitch setting.
Fig. 14 Keyswitch Connection
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