Laskomex CD-2502 Series Installation, Service And Programming Manual page 7

Illuminator in panels in version video makes it possible to recognize the face at
a distance of approx. 50 cm from the video camera. Lighting diodes are placed be-
hind the display, so they are effective only if the face of a visiting person is directed
towards the entry phone keyboard.
Inside the external panel there is a photoelement which reacts on light. When the
external illumination is good enough, the illumination of keyboard and camera are
turn off.
In CD-2502 system to one electronic cassette only one external panel can be con-
nected.
Uniphones
Uniphones for digital Laskomex entry phones co-operate with digital entry phone
system CD-2502. They are models: LF–8, LT–8, LX–8, LR–8 or LM–8 in all vari-
eties.
It is allowed to use the uniphones produced by other manufacturer, pro-
vided that the impedance of uniphone (during the call and conversation)
Z 40 Ω and the line current in the active state I=(70-100mA).
The use of uniphones not made by Laskomex may be associated with the
invalid operation of entry phone system. Laskomex does not take the re-
sponsibility for damage caused by equipment made by other manufacturers
and may refuse to perform warranty repair of any damage or injury in entry
phone system caused by using uniphones not made by PPUH Laskomex
or not accredited by it.
Uniphone LM–8W/1 has an additional switch to control the gateway drive. The
use of uniphones of other producers is not recommended because it may cause the
wrong operation of the whole entry phone system.
Uniphone LM–8W/3 is equipped with a highly effective receiver which ensures
call signal louder by approx. 6 dB than in standard LM-8 uniphone.
Uniphone LM–8W/4 has a door-bell function. Additional terminals in the uni-
phone enable the connection of bell button. Pressing the button results in switching
on the gong. Uniphone requires additional supply.
Loud speaking Uniphone LG-8 and LG-8D
Uniphone LG-8 is intended for digital entry phone systems produced by Laskomex
(CD-2502 and CD-3100). Uniphone LG-8 operates in simplex system — during the
conversation the user must press TALK pushbutton when he is speaking. Uniphone
LG-8D operates in duplex system (conversation is possible in both directions without
activating buttons or switches). Uniphone requires external supply from central
feeder 15 V DC/ 4 A (up to 40 uniphones) or own feeder 15 V DC/1A . Uniphone
functions also as a door-bell. Bell button is connected to two terminals in uniphone
and its pressing results in generating gong signal in uniphone. Detailed information
on connection, programming and use of uniphone LG-8 is included in the instruction
3 ELEMENTS OF ENTRY PHONE
6