Power Supply - Laskomex CD-2502 Series Installation, Service And Programming Manual

Power supply

Ac power supply adapter ZS-K-25/01 art.0018 or TSZZM 25/021M should be
used for supplying electronic cassette.
Electro-catch or electromagnetic lock
Entry phone CD-2502 can control electro-catch or electromagnetic lock. Op-
eration time is programmed and can be changed by an installing specialist. It is
recommended to use electro-catches for voltage 12V AC/DC and power consump-
tion not exceeding 1A. Default control of electro-catch by run of 50 Hz frequency
with characteristic buzzing of electro-catch.
Electromagnetic lock should be supplied by voltage 12 V DC/1A. In order to use
the electromagnetic lock, contact ZT1 in electronic cassette should be switched to
'ELECTROMAGNETIC LOCK' position. It is also necessary to set the frequency of
voltage run supplying the lock on '0', because supplying the lock with alternating
voltage makes that the door blocking force is considerably weaker. Jumper should
be put on contact J3. It is intended to liquidate residual magnetism which can
hamper opening of door.
Demagnetization system should be absolutely switched off during the op-
eration with electro-catch.
Reverse electro-catches work on the similar principle. They keep door blocked as
long as voltage is supplied to them. Using reverse electro-catch requires configura-
tion of entry phone for operation with electromagnetic lock.
Door opening pushbutton.
Pushbutton is used for unblocking the electro-catch or electromagnetic lock when
leaving the building. Any short circuit pushbutton can be used – e.g. bell or attack
pushbutton used in alarm systems; signaling diode can be connected as well.
Additional call module PW-1
The module enables an additional call signal (acoustic or optical) in the uniphone.
It is used in a situation when a uniphone is installed in a room of high noise level or
there are partially deaf people in a room. It enables - during calling - the activation
of any equipment supplied by voltage 12...24 V AC - bell, siren or signaling lamp.
External panel casing
As a standard external panels and lists of occupants are delivered in a frame
mounted under plaster, casings enable their mounting on plaster.
3 ELEMENTS OF ENTRY PHONE
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