Installation
21
Installation and programming manual
4-8
Wiring and balancing alarm
detectors
The wiring and respective balancing method depend on the type of
detector you are installing, and the level of protection you wish to
achieve. The detectors can be powered through:
•
terminal [+AUX/12V] and [-/negative] present on the PCB
•
from any 12V ancillary source on condition that its GND
reference is in common with that of the SmartLink
The resistors used for balancing are:
•
3K9Ohm 1/4W
•
6K8Ohm 1/4W
The following table indicates the protection level of each detector
type and the balancing options provided:
(*) Single balancing provides the same level of protection as Double
balancing, when the tamper contact of the detector is connected to
a balanced zone on the SmartLink.
4-8-1
N.C./N.O. Balancing
For N.C. (normally closed) and N.O. balancing
(normally open), it is possible to detect two distinct
zone conditions:
•
standby
•
alarm
For each of these, the SmartLink reads different
resistance values on the terminal, expressed below
in Ohm.
Red
White
Orange
Gold
3K9
Ohm
1/4W
Red
Grey
Blue
Gold
6K8
Ohm
1/4W
Table 10:
Protection level
BALANCING
N.O.
N.C.
Single
Double
Double
zone
Double
zone
with EOL
Infrared or
Double technology
very low
low
medium
(*)
high
medium
high
Magnetic contact
very low
low
medium
medium
high
Ohm
N.C.
N.O.
> 2 x 3900 + 6800
alarm
standby
> 2 x 3900 + 6800
alarm
standby
3900 + 6800
alarm
alarm
2 x 3900
alarm
alarm
3900
standby
alarm
0
standby
alarm
Alarm
+12V GND
Tamper
Содержание SmartLink Advanced
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