D268/D269 Independent Zone Control, D279A Independent Zone Control; Keyswitch; Description; Programming - Bosch D9412G Operations & Installation Manual

D9412G/D7412G | Operation & Installation Guide |
10.3 D268/D269 Independent Zone
Control, D279A Independent Zone
Control
Any on-board or OctoPOPIT point can be programmed
so the D268/D269 or D279A Independent Zone Control
operates as independent point control (arms and disarms
the point).
See Point Assignments in the D9412G/D7412G Program
Entry Guide for programming information. Refer to the
D268/D269 Operation and Installation Instructions
or the D279A Operation and Installation Instructions 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 D9412G/
D7412G Program Entry Guide.
10.4.2

Programming

See Point Assignments in the D9412G/D7412G Program
Entry Guide for the correct programming for points used
for keyswitches.
10.4.3

Installation

For maintained switches, connect the EOL resistor for
the point at the keyswitch so 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 27.

Figure 27: Keyswitch Wiring

3
4
1 - Maintained keyswitch
2 - Momentary keyswitch
3 - Common
4 - Point input
Bosch Security Systems | 10/03 | 43488E
10.0 Arming Devices
1
6
5
For momentary switches, connect the EOL resistor for
the point at the keyswitch so 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 27.
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
D9412G/D7412G Program Entry Guide.
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 D9412G/D7412G
Program Entry Guide.
Silencing the Bell
To silence the bell (stop Alarm Bell output) if the system
is armed, position the keyswitch to disarm the area. If
the area is disarmed, turn the keyswitch once to start the
arming process. Turning the keyswitch a second time
stops the arming process, silencing the bell.
2
3
5
4
5 - 1 k Ω or 33 k Ω∗
6 - Open on circuit arms area
7 - Short on circuit toggles arming state
* Use 1 k Ω EOL resistors if using one of the zones on
the panel or an OctoPOPIT. Use a 33 k Ω resistor if
using a POPIT.
EN | 55
7