Johnson Controls tyco Power Pro Series Reference Manual page 30

Alarm Controller Current Calculation
Maximum (Standby or Alarm)
AUX (2 A max. including PGMs 1-4)
Corbus (2 A max.)***
PCLink+ (200 mA)
USB (500 mA max.)
Cell Module (20 mA Idle)
Total (must not exceed 2 A)
For UL, ULC and Commercial Listed applications, the total standby and alarm current cannot exceed 2 amps.
Note: For EN50131, UL, ULC and Commercial Listed applications, the total standby and alarm current cannot exceed the
values in Aux Loading and Battery Selection for the applicable type of installation.
Overcurrent Trouble
If the total current of the panel internal components and all outputs exceeds a threshold of 2.1 A for a period longer than 5
minutes, an overcurrent trouble is generated. When the current goes below a 2.0 A threshold, the trouble restores. Do not
exceed 2A combined between AUX and Corbus.
Note: Total current does not include bell current or battery charging.
Line Loss
Voltage loss through wire resistance must be considered for all installations. To ensure proper operation, at least 12.5V
must be applied to all modules on the system (when AC is connected and the battery is fully charged). If less than 12.5V
applied, system operation is adversely affected.
To correct the problem, try any or all of the following:
1. Connect a HSM2300/2204/3350/3204CX power supply between the alarm controller and the module to provide addi-
tional power to the Corbus.
2. Reduce the length of the Corbus run to the module.
3. Increase the gauge of wire.
Section 2: Installation
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DC
is
DC