Teletek electronics CA824, Installation Manual, Page: 14 / 32

14 CA824 Installation manual
Power supply unit
The system power supply unit is located in the control panel box.
The auxiliary power supply voltage of the mains transformer should be within 15 – 25 V and of 50 VA.
!A 12 V / 7 Ah battery is connected to the CA824!
The supply to the module is connected to the system bus – RED and BLACK terminals.
Supply for control panel sensors is fed from +AUX+ and GND terminals.
Supply for auxiliary devices of the control panel (light indicators, relays, etc.) is fed from +PGM and GND
terminals.
!The RED and BLACK terminals on the system bus CANNOT BE USED to supply auxiliary de-
vices (sensors, light indicators, relays, etc.) That supply can be controlled from the control panel
process block and can be interrupted!
An auxiliary power supply unit for the system is connected according to the scheme shown in Fig. 6.
CA824 control panel resources
There are eight inputs at the control panel - INP1..INP8. These inputs are expanded to 16 for the double
zone.
There are five outputs at the control panel - OUT1..OUT3 and BELL output. Outputs OUT1, OUT2 and
OUT3 are programmable outputs. Output BELL has a power supply of up to 2 A to GND.
The CA824 control panel has an integrated digital dialler for transmitting messages to the central moni-
toring station via telephone line. The conductors from the telephone line socket are connected to termi-
nals A and B. The telephone device is connected to terminals A1 and B1. No polarity has to be observed
when connecting the telephone line to the control panel.
CA824 control panel fuses
F BATT fuss – A 2A battery fuss.
F AUX fuss – A 2A peripheral device power supply fuss. Output at + AUX.
F PGM fuss – A 2A power supply fuse for PGMx and +PGM outputs.
Fig. 6. Connecting the auxiliary supply block to the CA824 system
Power supply unit
S
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b
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BLACK
GREEN
YELLOW
RED
BLACK
GREEN
YELLOW
RED
+
-
12V NO
S
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s
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CA824 control panel indications
Green LED COMMUNICATOR - The light-emitting diode lights when the integrated digital dialler has
engaged the telephone line.
CA824 control panel terminals
MEMORY RESET – Producer default configurations can be restored by placing a bridging terminal and
feeding power supply to the control panel. This is recommended while installing the system and prior to
programming the parameters.
Producer default configurations can be restored at any time.
SERVICE BUS CONNECTOR – A service LCD keypad is connected to this terminal. The keypad
allows for adjustments to be done to parameters of a system not connected to an LCD keypad.