Bosch Appliances Home Security System D7212G Benutzerhandbuch

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D7212G Operation and Installation Guide
D7212G
Page 51
© 2003 Bosch Security Systems
4998138544C
Arming Devices
10.3
D279A Independent Zone Control
Any on-board  or OctoPOPIT  point can be programmed so that the D279A Independent Zone Control operates as
independent point control (arms and disarms the point).
• See the Point Assignments in the D7212G Program Entry Guide (P/N: 4998138538) for programming information.
• See the D279A Operation and Installation Guide (P/N: 46456) for wiring and operation instructions.
10.4
Keyswitch
10.4.1
Description
A maintained or momentary contact arming station (keyswitch) can be connected to master arm/disarm any of the areas in
the system. The keyswitch is connected to an on-board or off-board point’s sensor loop. Relays can be programmed to
activate arming status LEDs for keyswitch arming stations. See Relays in the D7212G Program Entry Guide
(P/N: 4998138538).
10.4.2
Programming
See Point Assignments in the D7212G Program Entry Guide (P/N: 4998138538) for the correct programming for points used
for keyswitches.
10.4.3
Installation
For maintained switches, connect the end-of-line resistor for the point at the keyswitch so that the switch opens the circuit
when it operates. A short on the circuit produces an alarm if the area is armed and a trouble if it is disarmed. See Figure 18.
For momentary switches, connect the end-of-line resistor for the point at the keyswitch so that the switch shorts the resistor
when it operates. An open on the circuit produces an alarm if the area is armed and a trouble if it is disarmed. See Figure 18.
10.4.4
Keyswitch Operation
Maintained Contact
If the point to which the keyswitch is connected is programmed for a maintained contact, an open on the arming circuit
arms the area. All faulted points are force armed, regardless of the entry in the FA Bypass Max program item. Returning the
circuit to normal disarms the area. See Area Parameters and Point Assignments in the D7212G Program Entry Guide (P/N:
4998138538).
Momentary Contact
If the point to which the keyswitch is connected is programmed for a momentary contact, shorting the arming circuit toggles
the area’s arming state between armed and disarmed. All faulted points are force armed, regardless of the entry in the FA
Bypass Max 
program item. See Point Assignments in the D7212G Program Entry Guide (P/N: 4998138538).
Silencing the Bell
To silence the bell (stop Alarm Bell output) if the system is armed, operate the keyswitch to disarm the area. If the area is
disarmed, operate the keyswitch once to start the arming process and a second time to stop the arming process and silence
the bell.
COMMON
POINT INPUT
OPEN ON
CIRCUIT
ARMS AREA
COMMON
POINT INPUT
SHORT ON
CIRCUIT
TOGGLES
ARMING
STATE
MAINTAINED KEYSWITCH
MOMENTARY KEYSWITCH
1 k
Ω 
*
or
33 k
Ω 
*
1 k
Ω 
*
or
33 k
Ω 
*
* Use 1 k
Ω 
end-of-line resistors if using one of the zones on the panel or an OctoPOPIT.
Use a 33 k
Ω 
resistor if using a POPIT.
Figure 18: Keyswitch Wiring