©
CIAS Elettronica S.r.l.
Ed. 2.4
TERMINAL BLOCK MS3 IR2 LOW RECEIVER INTERFACE CIRCUIT
Term Symbol
Function
1
13,8V
Positive for power supply circuit (+13,8V )
2
GND
Negative for power supply circuit
3
IN AL
Infrared barrier input alarm contact
4
DISQ
Infrared barrier disqualification alarm contact
5
DISQ
Infrared barrier disqualification alarm contact
JUMPERS RECEIVER INTERFACE CIRCUIT
Symbol Symbol Default
JP1
Doppler Alarm Management
OFF
JP2
IR High Barrier Alarm Management
ON
JP3
IR High Barrier Disqualification Management
ON
JP4
IR 2 Low (middle) Barrier Alarm Management
OFF
JP5
IR 2 Low (middle) Barrier Disqualification Management
OFF
3.2 Connection to Power Supply
The units must be powered by direct current at a nominal voltage of 13,8 V ,.
The connection between the power supply and the head must have adequate
dimensions, calculating the cross-section based on the length of the connection
and the current consumption of the devices. When the connection is very long it is
recommended to use a supplementary power supply.
3.2.1 Connection to Mains Power Supply
The connection between the supplementary power supply and the 230/240vAC network must
use conductors of the correct size, as proscribed in local regulations.
The connection of the 230/240v network must be made using a suitable size device with the
following characteristics:
•
bipolar with a minimum distance of 3mm between the contacts.
•
configured as part of the fixed system
•
easily accessible
It is possible to use the Newton-Alim power supply inside the TX and RX column.
Full attention must be paid to the rules and regulations covering the permanent
connection of fixed devices to the national power supply network such as Law 46/90
and CEI 64-8 Standard in Italy.
3.2.2 Connection to stand-by power supply (Battery)
The optional 12vDC 2.1Ah battery placed inside the column and recharged by the Newton-Alim
will provide power supply autonomy for greater than 12 hours (Fault is activated after a power
failure of greater than 3 hours if the positive for mains present is connected on terminal MPR ).
N.B.
the casing of the stand-by batteries used must be of self-extinguishing class HB or better (
Standard UL 94 ).
Installation Manual
Page
39
of
56
PYTHAGORAS
