Installation Instructions

Power supply
This section provides information on installing and maintaining
primary power, batteries, and auxiliary power.
Primary (AC) power
The control panel uses an 18 VAC, 22 VA internally fused
transformer (CX4010) for its primary power source. The control
panel draws 125 mA when idle and 155 mA when in the alarm
state. The auxiliary power available for powered devices is 800
mA.
Surge protection
Transient suppressors and spark gaps protect the circuit from
power surges. This protection relies on the ground connection
at the earth ground terminal , marked with the
icon. Ensure
that you connect the terminal to a proper ground.
Refer to Connect earth ground, page 13.
AC power fail
The system indicates an AC power failure when the VAC
terminals do not have sufficient voltage. The AC Fail Time
parameter sets the amount of time without AC power before the
control panel reports the failure, and the amount of time after
the power returns before the control panel reports restored
power.
Self diagnostics at power up and reset
The system performs a series of self-diagnostic tests of
hardware, software, and programming at power up and at reset.
The self-diagnostics tests complete in approximately 10 to 30
sec.
If the control panel fails any test, a System Trouble message
appears at the keypads.
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Control Panels Power supply | en 17
Bosch Security Systems, Inc. 2015.09 | 08 | F.01U.287.185