CIAS Elettronica S.r.l.
Ed 2.0
Installation Handbook
page
32
to
44
ERMUSA
3.2 Equipment connection to the Power Supply
3.2.1 Connections to the Power Supply
The units must be powered with DC voltage, nominal value is
13,8 V
.
The connection between unit and the power supply must be realised with cables of correct
section, the cables section must be computed keeping in account connection length and unit
current absorption. For the very long connection case we suggest the use of a supplementary
power supply. For the power supply connection (13,8 V
e GND ), to make connect pin
1
and
2
on the terminal strep
MS1
of the Tx and Rx circuit. The cable must be shielded type.
3.3 Connections to the data processing Central
The connection cables to the Central must be of shielded type.
The connections are made-up by contact, normally closed and free of electrical voltage, they
are as follows:
Alarm - Tamper - Fault
On the Transmitter
(only S version)
unit are also present inputs for the following functions
activation:
Synchronism (Tx) - Stand-By (Tx) - Test (Tx).
3.3.1 Alarm contacts: Alarm, Tamper, Fault
The Alarm and Fault outputs are made-of static relays contacts with 100 mA 12 V max
capability and total internal resistance of 35 Ohm.
The Tamper output is made of
Microswitch
contact and a
Bulb contact
with 100 mA max
capability. The outputs are activated by the following reasons:
Alarm output:
1
– Intrusion alarm on Receiver
2
– Channel alarm on Receiver
Tamper output:
1
– Opening of microwave head, Tx or Rx
2
– Changing head position (bulb contact), Tx or Rx
Fault output
1
– Fault BF oscillator (Tx)
2
– Fault RF oscillator (Tx)
Содержание ERMUSA 30
Страница 43: ...NOTE...
