D9412G/D7412G Operation & Installation Guide
© 2002 Radionics
Page 53
43488D
D9412G/D7412G
Arming Devices
10.0 Arming Devices
10.1
Description
Command centers, maintained or momentary contact keyswitches, or a combination of the two are used to arm
and disarm areas. The panel may contain up to 8 areas. See section
2.4.2 Areas and Accounts for a description of
areas.
10.2
Command Center Terminals
The Radionics command center is a 4-wire powered device used to arm and disarm areas, annunciate complete
system status, initiate system tests, and control many functions of the security system.
The system can supervise up to eight command centers. The panel transmits a serial device trouble report,
SDI
FAILURE
in the Modem IIIa
2
format or
TROUBLE ZN D
in the BFSK format, if it loses communication with a
supervised command center.
CALL FOR SERVICE
appears in any command center with text display capability that
loses communication with the panel.
SERVC KEYPAD
appears at all other command centers connected to the
system.
A total of 32 command centers can be connected to the system. The number of supervised command centers,
number of areas, and the available power affect the total number of command centers that can be connected to the
system. See
Command Center in the D9412G/D7412G Program Entry Guide for complete programming details
on command center options.
There are five types of command centers available for use with the system. The D1255 features a 16-character
alphanumeric display for general use. The D1256 is also a text display command center with functional keys
optimized for local fire alarm control. The D1257 is a text display command center for fire annunciation. The D1260
boasts an easy-to-read 4-line by 20-character LCD display with eight “Soft” keys for displaying simple selections.
The D720 is an LED display command center appropriate for use as a single area command center with up to
eight points.
The D1255 and D720 are also available in white (P/Ns D1255W and D720W) or red (P/Ns D1255R and D720R)
versions as well.
See the command center’s
User’s Guide for operational information.
10.2.1 Assigning the command center an
address
Switches on the command center assign
an address (1 to 8) to the command
center. The address determines if the
command center is supervised, the
command center's scope, and what area
the command center is assigned to. See
Command Center Assignment in the
D9412G/D7412G Program Entry Guide for
a complete description of addresses.
Table 12 shows the correct switch setting
for each address.
10.2.2 Installation
Consult the command center
installation manuals for installation
and mounting instructions. Command
centers connect to the panel in
parallel as shown in
Table 13.
Table 12: Command Center Address Settings
Table 13: Command Center Connections
Switch
Address
1
2
3
4
5
6
Address #1
ON
ON
ON
ON
ON
Address #2
OFF
ON
ON
ON
ON
Address #3
ON
OFF
ON
ON
ON
Address #4
OFF
OFF
ON
ON
ON
Address #5
ON
ON
OFF
ON
ON
Address #6
OFF
ON
OFF
ON
ON
Address #7
ON
OFF
OFF
ON
ON
Address #8
OFF
OFF
OFF
ON
E
n
codi
ng To
ne ON
/O
FF
ON
D9412G
Command Center
Terminal
Function
Wire Color
Function
32*
POWER +
Red
12 VDC
31
DATA BUS A
Yellow
Data-In
30
DATA BUS B
Green
Data-Out
29
COMMON
Black
Common
* Connect with at least 5 ft. (1.5 m) of 22 AWG wire (14 ft. [4.3 m] of 18
AWG wire).
