28
15586 Rev E 5/14/93 P/N 15586:E
Appendix B: Power Calculations
NOTE: The LED Interface (40xxLI) does not consume any power and can be ignored when calculating power
requirements. In addition, the General Alarm and Trouble Module (40xxAT) does not consume power during
trouble and the RZA-4 consumes nothing in alarm.
Table 1: Standby Battery Requirements
Number
Current Total
in
Per
Device
use
Device Current
a. Two-wire detector heads
b. Four-wire detector heads
c. End of Line Relays
d.
Add lines a, b, & c for subtotal
Basic Control Panel
79.2 mA
If using a Zone Relay Module: 4012ZR, add 8 mA
or 4024ZR, add 16 mA
If using a Transmitter Module (40xxTM), add 5 mA
If using the Reverse Polarity Alarm output, add 10 mA
If using the Reverse Polarity Trouble output, add 10 mA
If using a Remote Zone Annunciator (RZA-4), add 8 mA
Unregulated, Auxiliary power (draw from Terminals 18 & 19)
(AC Power off - System trouble LED on and audible trouble
sounder activated - includes indicating supervisory current)
Add last column for Standby Battery Current :
X 0.1 mA =
X 0.15 mA =
X 25.0 mA =
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Place subtotal here
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