Section 2: Installation
Module (A) is wired correctly as it is within 1000 ft / 305 m of the panel, in wire distance. Module (B) is wired correctly as it is within
1000 ft / 305 m of the panel, in wire distance. Module (C) is NOT wired correctly as it is farther than 1000 ft / 305 m from the panel. For
models that require more than 1000 ft / 305 m from the main panel, a HSM3204CX power supply/Corbus extender can be used.
Current ratings
In order for the system to operate properly, the power output of the alarm controller and power supply modules cannot be exceeded.
Use the following data to ensure that the available current is not exceeded.
Table 2-2: System output ratings
Device
Output
Rating (12 VDC)
HS3032
HS3128
HS3248
AUX
Corbus:
2 A. Subtract the listed rating for each keypad, expansion module and accessory connected to AUX or
Corbus. At least 100 mA must be reserved for the Corbus.
BELL:
700 mA continuous rating. 2 A. short term. Available only with standby battery connected. DO NOT exceed
the 700 mA load for UL/ULC or EN certified applications.
HSM3350
AUX1:
AUX2:
3 A. Subtract the listed rating for each keypad, expansion module and accessory connected to AUX.
HSM3408
AUX:
500 mA. Continuous rating. Subtract for each device connected. Subtract the total load on this terminal from
the alarm panel AUX/Corbus output.
HSM3204CX AUX/
Corbus:
2 A. Continuous rating. Subtract for each device connected.
HSM2208
AUX:
250 mA. Continuous rating. Subtract for each device connected. Subtract the total load on this terminal from
the alarm panel AUX/Corbus output.
HSM2108
AUX:
100 mA. Subtract for each device connected. Subtract the total load on this terminal from the panel
AUX/Corbus output.
Alarm controller current calculation
Maximum (standby or alarm)
AUX (2 A max. including PGMs 1-4)
Corbus (2 A max.)***
(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 A.
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.
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