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HOUSE PHONE REF. 1132/621
TECHNICAL SPECIFICATION
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57
HOUSE PHONE
REF. 1132/621
BASIC FEATURES
Door phone ref. 1132/621 is based on ref. 1132/620, but it is
provided with additional button, and ready for fitting other 6
supplementary buttons.
Additional button can be used for: calling switchboard, control NO-
NC relay etc.
Additional button is connected with terminals T:68 and -L and
serves to control power supply terminals OC1 and OC2
(depending on riser). If terminals of power supply OC1 and OC2
are connected to EI, system will control NO-C-NC relay in the call
module.