Installation Of Modules Cvp-1 And Cvp-2 - Laskomex CD-2502 Series Installation, Service And Programming Manual

6.4 Installation of modules CVP–1 and CVP–2
Entry phone CD-2502 can control electro-catch or electromagnetic lock (or reverse
electro-catch). Both elements are controlled in different ways. In case of electro-
catch release of entrance interlock takes place after supplying voltage to electro-
catch. Electromagnetic lock operates in reverse way - the entrance is blocked as
long as voltage is supplied to the lock.
The selection of control method enables jumper ZT1.
If electromagnetic lock is used jumper on joint J3 which is used for lock demagne-
tization which can hamper opening of door. In case electro-catch is used jumper
should be removed from joint J3. For electromagnetic lock set control fre-
quency to 0! (see page 29). Setting frequency to value above 0 will result in
a considerable decrease of force of blocking the door with electromagnetic lock.
a)
Figure 12: Selection of electro-catch or electromagnetic lock.
6.4 Installation of modules CVP–1 and CVP–2
Switch should be installed in junction box or on the wall inside the building. Four
screws should be driven to mount the casing cover to its base. After taking off the
cover, make openings in the base for mounting screws (W1, W2) for strut pins and
screw the base to the wall. Connect wires to terminals ARK in switch, in casing
cover break off plugs in places in which wires will be introduced to casings and
screw the cover to the base.
Signal from video camera in external panel at the main entrance should be connected
to terminals C1, signal from the video camera in panel at the subordinate entrance
(e.g. at the staircase) should be connected to terminals C2. In CVP-2 switch to
the terminals C3 and C4 may be connected signals from additional cameras.
Switch has two signal outputs X and Y from which signal may be sent to monitors
or signal distributors CVR-x.
Switch is supplied from electronic cassette EC-2502 (terminals +V and G). Switch
control signal is sent to CS input.
Switch functions also as an amplifier and signal correction system. Switching on
the correction system and degree of amplification for both outputs X and Y are
defined by the position of a jumper on the joint JP3 (see dwg 13).
In order to get picture free from deformation one should perform correctly electrical
system and adjust input and output impedance of electrical equipment (monitors,
FUSE SW1
SW2
P2 P3
P1
X
J3 ZT1
ZT1 A) Electro-catch
ZT1 B) Electromagnetic lock
6 INSTALLATION AND ACTIVATION
b)
J3 ZT1
J3
demagnetizing on
demagnetizing off
J3
21