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D9112 Operation & Installation Manual
Page 54
74-06144-000-C 2/96
© 1993-1996 Radionics
Installation
Consult the
D1255 Installation Instructions
(74-06819-000) for installation and mounting
instructions. Command centers connect to the D9112 panel in parallel as shown in
Table 5.
Table 5: D1255 Connections
D9112 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' of 22 AWG wire (14' of 18 AWG wire)
Switching the green and yellow wires affects other command centers:
Incorrectly
connecting the green wire from the command center to the D9112's terminal 31 and the
yellow wire to terminal 30, causes other command centers connected to the panel to go
blank and/or sound random beep tones.
You can connect a maximum of 15,000 feet of 22 AWG wire
for all command centers
and printer modules combined
to the data bus, terminals 30 and 31. You can connect
parallel wire runs from the D9112 to each device, run wire device to device, or combine
the two.
Extra power needed for more command centers:
The D1255 Command Center
draws 104 mA when it is idle. It draws 206 mA with the back lighting for the keys lit and
the sounder activated. Review the
Power Outputs
section to determine the total power
output requirements for your system.
You may need to add one or more D8132 Battery Charger/Power Supply Modules for the
number of command centers you want to use. Figure 19 shows the D8132 powering
command centers in a stand-alone configuration.
For UL certificated accounts use a UL listed power supply. The D8132 is not UL listed as
a stand-alone power supply.
D9112 and D8132 (or other power supply) must share COMMON:
Note that Figure
19 shows the common from the D8132 module connected to both the command centers'
common and the common on the D9112.
A stand-alone power supply powering any device connected to the D9112 must also be
connected to a common terminal on the D9112. Do not connect the stand-alone power
supply to earth ground other than terminal 10 on the D9112.
NCI
#1,
#40