Outdoor Wiring - Sensaphone 1108 User Manual

Sensaphone ® Model 1108 User's Manual
To wire several normally open sensors to one alert input, connect
them in parallel. To do this, take one lead from each sensor and
attach it to the numbered terminal. Then, take the second lead
from each sensor and attach each to the corresponding ground
screw. Refer to Figure 2-9.

2.12 Outdoor Wiring

When wiring sensors outdoors, DO NOT allow exposed wires to
run freely in open air; under such conditions, the Model 1108 is
susceptible to serious damage during a lightning storm.
Depending upon the distance outdoor wiring must travel,
consideration should be given to use of shielded wire inside a
metal conduit. Both shield and conduit should be connected to
earth ground. This prevents stray voltage from entering the unit.
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Figure 2-8. Multiple Normally Closed Sensors
Figure 2-9. Multiple Normally Open Sensors