©
CIAS Elettronica S.r.l.
Ed. 1.2
Installation Handbook
page
44
of
55
CORAL-S
3.3 Connection to the Control Panel
Electrically shielded cables must be used to make the connections to the Control Panel.
3.3.1 Alarm contacts: Alarm, Tamper, Fault
On receiver PCB are present 3 static relays with dry contacts normally closed. By means of these
contacts it’s possible to communicate to the control panel the following conditions:
•
ALARM, TAMPER, FAULT
On transmitter PCB are present 2 static relays with dry contacts normally closed. By means of
these contacts it’s possible to communicate to the control panel the following conditions:
•
TAMPER, FAULT
On the transmitter PCB are provided also 3 inputs to activate the following functions:
•
Test
•
Stand-by
•
Synchronism (Input or Output)
The output contacts for alarm, tamper and fault, both on transmitter and receiver, are made by
Static Relays with maximum current of 100 mA.
Remark:
in closed condition the resistance of these contacts is about
40 ohm
.
The connections to control panel must be made by means of shielded cables.
The relays are activated for the following reasons:
- ALARM RELAY
1- Pre-alarm on receiver ( Remark1 )
2- Intrusion alarm on receiver
3- Receiver masking condition alarm
4- Successful result of test procedure operation
5- Insufficient received signal (V RAG >6,99V)
6- Channel alarm.
- TAMPER RELAYS
1- Cover removing (radome) (TX and RX)
2- Tilt Bulb position (TX and RX)
- FAULT RELAYS
1- Battery voltage low (< +11V )
2- Battery voltage high (> +14.8V )
3- RF (radio frequency) or LF (low frequency) Oscillator fault on Transmitter
4- Power supply circuit fault or mains supply voltage missing (more then 3 hours)
Remark 1:
if the intrusion signal, after overcoming the start of analysis threshold (Walk Test
buzzer sounds intermittent), stays for about 30 sec in this condition, the alarm output
is activate (the contact become opened).
Содержание CORAL-S
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