User's Manual

7
2.2. Power Supply
Built-in Power Unit
 You can use the built-in power unit to connect to the mains power. AC module built-in power
unit or Open Frame built-in power unit is installed. Please refer to Using the built-in
Power Unit in 3.3 Hardware Installation for more details.
Please note:
 Ensure to turn off all power supplies including Built-in Power Unit and SLA
Battery before connecting or removing cables or wires.
Rechargeable Battery
 A rechargeable battery can be installed inside the Control Panel to serve as a backup in
case of a power failure.
 During normal operation, AC power is used to supply power to the Control Panel and at the
same time recharge the battery.
 If the battery switch is set as OFF, the battery will not be charged when AC power is
connected and nor will it serve as a backup power source when AC power is missing. You
need to switch the battery to ON for it to be charged when AC power is connected and
serve as a backup power source when AC power is missing.
Power Output
 The panel supports up to a maximum total of 13.5V/2A (typical) for the current derived from
12V auxiliary voltage output terminals, Bell and PGM ports.
 The total current provided by Hybrid Panel for hardwired devices, bells, PGM,
KPT-35-COMBO and expansion modules should not exceed 2A. Otherwise, additional
power is required.