Bosch Appliances D9112 installation manual Point Parameters, Point Response Time

Point Parameters

You can determine the condition of on-board points 1 to 8 by measuring the voltage across the point input terminal and one of the common terminals. The sensor loops must be connected and the 1k ý end of line resistor in place.

Open Loop = Greater than 3.7 VDC, but less than 5.0 VDC.

Normal Loop = Greater than 2.0 VDC, but less than 3.0 VDC.

Shorted Loop = Greater than 0.0 VDC, but less than 1.3 VDC.

Point Response Time

The D9112 Control/Communicator scans both on-board and off-board point sensor loops every 300 milliseconds. The Debounce Count program item in the Point Assignment module determines point response time by setting the number of scans that a point must be faulted before the panel initiates an alarm.

The debounce count can range from 1 to 15. Therefore point response time ranges from 300 milliseconds to 4.5 seconds. The Radionics default for Debounce Count is 2.

Warning, increasing debounce count may cause missed alarms: If you increase the Debounce Count, detection devices may go into alarm and reset without exceeding the point response time.

Radionics recommends you leave the debounce count at 2 for all points.

	D9112 Operation & Installation Manual
74-06144-000-C 2/96	Page 34	© 1993-1996 Radionics