Sensaphone Sentinel SCD-1200 Manuale Proprietario
13
Chapter 1: Installation
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sor inputs. Where paths must cross, their intersection should be perpendicular.
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Wiring Minimum
Distance
Distance
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The zone terminal strip has an upper and lower level for connecting up to 12 sensors. The lower level
terminals are all “ground” and are electrically connected together. The upper terminal strip is the posi-
tive connection for each sensor. See illustration below.
terminals are all “ground” and are electrically connected together. The upper terminal strip is the posi-
tive connection for each sensor. See illustration below.
2 3 4 5 6 7 8 9 10 11 12
1
Input Terminals
Ground Terminals
Sensor 1
Sensor 2
Sensor 3
NORMALLY OPEN / NORMALLY CLOSED DRY CONTACTS
Dry contact sources consist of alarm relays or switches that are isolated and have no external volt-
age applied. These devices can be connected directly to the zone terminals without regard for polarity.
Choose a zone and connect the wires to the corresponding screw terminals for that zone. The following
figure shows how to connect a dry contact sensor:
age applied. These devices can be connected directly to the zone terminals without regard for polarity.
Choose a zone and connect the wires to the corresponding screw terminals for that zone. The following
figure shows how to connect a dry contact sensor:
NO/NC
+
–
Wiring a Dry Contact Sensor