22
Installation
Telephone dialler
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 ancillary 12V power source as long as it has a ground
reference (GND) in common with the ground reference of the
SmartLinkAdv
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:
(*) The level of protection of Single balanced mode is as secure as
Double balanced mode if the tamper contact of the detector is
connected to a balanced zone on the SmartLinkAdv.
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 SmartLinkAdv reads different
values of the equivalent resistance on the terminal,
shown below in Ohm:
Red
White
Orange
Gold
3K9
Ohm
1/4W
Red
Grey
Blue
Gold
6K8
Ohm
1/4W
Table 4-1:
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 Series
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