Troubleshooting guide

10
Maximum Auxiliary Power Outputs
All DMP Command Processor™ panels provide 12 VDC of auxiliary power for system
accessories, such as keypads, zone expanders, supervision modules and intrusion detectors.
• XR5FC/XR5SL – 500mA
• XR6/XRSuper6/XR10/XR20/XR40 – 600mA
• XR200/XR2400F/XR200-485 – 1000mA (1 Amp)
• XR500/XR500N/XR500E/XR2500F – 1500mA (1.5 Amps)
Each device consumes a portion of the panel’s available auxiliary power. When the auxiliary
power demand is too great, the panel shuts down the auxiliary power circuit. That means
that anything powered by the panel, is now dead. To take some of the load off of the
panel, an auxiliary power supply can be used.
Wiring a Supplemental Power Supply
To take some of the load off of the panel, an auxiliary power supply can be used to power
some or all of the devices on the keypad bus or LX-Bus™. The diagram below illustrates
how this can be accomplished.
The Sensor Reset Output can be used to reset 2-wire smoke detectors (wired to Model 715
zone expanders) by dropping power to the bus for five seconds when a Sensor Reset is
performed.
If that isn't necessary, then the positive voltage may go directly from the power supply to
the devices on the bus.
TECH NOTE: ALWAYS BE SURE THAT THE NEGATIVE SIDE OF THE AUXILIARY POWER
SUPPLY IS CONNECTED TO THE BLACK WIRE OF THE KEYPAD OR LX-BUS!
-NOTES-
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