10
How to Bias Alarm Points
Fig. 8.3 -
Alarm inputs can be configured with
jumpers A through F
Fig. 8.5 - Each alarm input has four
configuration options.
Fig. 8.4 - Circuit board jumper designations, located in the
lower right area of the circuit board.
Example: If connecting alarm points to a dry contact relay, look at the dry contact example. Be sure to set
jumpers A and C, then bring out the leads from 1A and 1B to both contacts of the relay.
NOTE: Using dry contact and contact to ground modes is not suggested because the -Batt biasing relies on the
-48 bus. The NetDog ships in the TTL internally-biased mode from the factory. This is the suggested
configuration.
Summary of Contents for NetDog 82 BW
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