CIAS Elettronica S.r.l.
Ed. 1.3
Installation Manual
Page
56
of
78
PYTHAGORAS 3
10.3 Connection to the Control Unit
Connections to the central control unit must use shielded cable.
10.3.1
Alarm Contacts: Alarm, Tamper, Fault
The device outputs are:
on the receiver there are 3 voltage free, normally closed contacts to indicate the following
conditions:
ALARM, TAMPER, FAULT
on the transmitter there are 3 voltage free, normally closed contacts to indicate the following
conditions:
TAMPER, FAULT
There are also two inputs on the transmitter to activate the following functions:
Test
Synchronisation (Input or Output)
All output contacts on the transmitter and the receiver are solid state relays with a rating of
100mA max.
N.B.
the resistance of Alarm, Tamper and Fault contacts, when closed, is approximately
40
Ohm
. The alarm contacts will activate under the following conditions:
- ALARM RELAY
1- Pre-Alarm on receiver (Note 1) plus at least an Alarm on an infrared barrier
2- Channel Alarm (Note 2) plus at least an Alarm on an infrared barrier
3- Alarm from at least 2 infrared barriers
4- Disqualification of at least one infrared barrier plus any other alarm
5- Any Alarm described in the chapter alignment and configuration
- TAMPER RELAY
3- Removal of cover (Radome)
4- Tilt bulb operation
- FAULT RELAY
1
Low battery voltage (< +11V
)
2
High battery voltage (> +14.8V
)
3
Oscillator Fault BF (low frequency) or RF (radio frequency) TX circuit
4
Loss of main power for more than 3 hours continuously if using the appropriate input
5
Disqualification of one or more IR barriers on the RX
Note 1
: a pre-alarm will be generated, if the intrusion signal, after passing the start analysis
threshold (Walk-test buzzer sounds intermittently), remains in this condition for about
30 seconds.
Note 2
: If the transmitter channel is set to channel F it will not generate a channel alarm.
Содержание PYTHAGORAS3
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