Page 96 P/N: 4998122677Cr1 Copyright 2003 Bosch Security Systems DS7240-UK Reference Guide
PART III: PANEL PROGRAMMING
36.2 Pulse Count
• Address: See Table 22
• Default: See Table 22
• Selections:
• 0 = 300 ms (on-board zones only)
• 1 = 60 ms (on-board zones only)
• 2-15 = number of pulses required within the programmed Pulse Count Time for an alarm to occur (see Table 24)
36.2.1 Parameter Description
This parameter determines the number of times a sensor loop must pulse (electronically off-normal) in the Pulse Count Time
before the panel declares the zone faulted. This applies to both on- and off-board zones. See the Pulse Count/Pulse Count
Time example on page 97 for more information.
• Setting the Pulse Count to 0 (zero) tells the panel to look for 1 pulse lasting at least 300 ms before declaring the zone
faulted.
• Setting the Pulse Count to 1 tells the panel to look for 1 pulse lasting at least 60 ms before declaring the zone faulted.
Bosch Security Systems recommends leaving Pulse Count at the default setting (0).
36.3 Pulse Count Time
• Address: See Table 22
• Default: See Table 22
• Selections: 0-15 (see Table 24)
36.3.1 Parameter Description
When the panel detects a pulse (electronically off-normal), it starts a timer and waits the time selected in this parameter to
reach the Pulse Count and declare the zone faulted. See the Pulse Count/Pulse Count Time example on page 97 for more
information.
If a single pulse starts the Pulse Count Timer and lasts 20 seconds, the panel declares the zone faulted
regardless of the Pulse Count.
Pulse Count Time Selections for 60 ms
Point Scan Time (on-board zones only)
Pulse Count Time Selections for 300 ms
Point Scan Time (on-board & off-board zones)
Selection Pulse Count Time Selection Pulse Count Time
0 0.5 seconds 8 20 seconds
1 1 second 9 30 seconds
2 2 seconds 10 40 seconds
3 3 seconds 11 50 seconds
4 4 seconds 12 60 seconds
5 5 seconds 13 90 seconds
6 10 seconds 14 120 seconds
7 15 seconds 15 200 seconds
Table 24: Pulse Count Time Selections
Only selections 8 to 15 are appropriate for off-board zones. The DX2010 Input Expander fixes the Zone Scan
Time. Only assign off-board zones to zone function configurations with the Pulse Count Time programmed with
selections 8 to 15.
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