AKCP sensorProbe8 - Page 5

SP2/SP8/SP8-X20 Manual
Updated until firmware 413 - 5 -
7. sensorProbe8-X20
8. sensorProbe8-X20 20 Extra Dry Contact Inputs
The 20 extra dry contact inputs on for example, the sensorProbe, (or securityProbe
X20/X60) can be configured as inputs only up to 5 Volts in normal operation. In opto-
isolation mode they can input up to 30 Volts DC. This will protect these inputs and the
unit from high voltages and spikes.
Opto-isolators provide complete electrical separation between the securityProbe and the
dry contact. The base units are therefore protected against possible large voltage spikes
caused by lightning for example.
The figure below shows the JUMPERS (on the dry contact board) set up to provide opto-
isolators support. Opto-isolators provide complete electrical separation between the
sensorProbe and the dry contact.
The OID for the extra dry contact inputs is:- .1.3.6.1.4.1.3854.1.2.2.1.18.1.3.<port>