Cooper Security 9751 Guide de l'utilisateur Page 45

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2. Programming Commands
497096, issue 3 Page 39
87: Keypad Dual Key Alarms
This command enables users to raise an alarm by pressing two keys on the
keypad at the same time. Three types of alarms are available, each of which
can be enabled or disabled independently. The default is disabled (option 0).
Alarm type Key combination Disable Enable
PA 1 and 3 0 1
Medical 4 and 6 0 1
Fire 7 and 9 0 1
Press A and B to scroll up and down through the types (PA, FI and MD).
Notes:
1. Selecting option 1 also enables any PAs connected to 9928 keyswitch interfaces or
to 9940 keypads.
2. Compliance with DD243: 2004, which relates to the ACPO Security Systems Policy
2004, requires that dual key PA is disabled (option 0).
88: Anti-Mask Mode (9853 only)
When using the three-resistor wiring method for anti-masking, the three
possible signals from a detector are interpreted in combination:
Signal
Event
Alarm Tamper Fault
None N N N
Intrusion
Y
N N
Tamper any
Y
any
Fault N N
Y
Masking
Y
N
Y
This command determines whether a resistance value of 4.4k (resulting
from a Fault signal alone) is reported as Mask or Fault. If the detectors with
anti-masking outputs in the system can report faults, select option 1; if they
cannot, select option 0. For information on three-resistor anti-mask wiring,
refer to the 9x5x Installation Guide.
All detectors with anti-masking outputs used in the system must work in the
same way (either all report faults or none report faults). If no detectors with
anti-masking outputs are fitted, this command has no effect.
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