Installation manual

Model 5395 Distributed Power Module
8 150933 / Rev. 9/96
4.3 Current Requirements (Standby and Alarm)
4.3.1 Current Drawn From Host Panel
Table 4-1 shows the 5395 current draw requirements from the main control panel when the
panel’s notification circuit is in alarm. The current draw from the main panel when it is
supervising the 5395 is the same current draw that would be present when the main panel
supervises an ordinary notification circuit.
Table 4-1. 5395 Alarm Current Drawn From Main Panel
Panel Voltage Current
Alarm Current (for typical voltages)
12 VDC 6.5 mA
drawn from main panel’s notification
circuits.
24 VDC One input circuit: 15 mA
Both input circuits: 30 mA
4.3.2 Current Drawn from Battery
Backup batteries used with the 5395 must be UL listed 7 AH batteries, such as the Silent Knight
Model 6712. See page 16 for battery installation.
The following is the maximum current draw from the auxiliary power terminals for standby
calculations. These currents assume 24 or 60 hours of standby time followed by 5 minutes of
maximum alarm current.
• 195 mA for 24 Hours of Auxiliary Standby Current
• 39 mA for 60 Hours of Auxiliary Standby Current
The above numbers were calculated assuming the use of 7 AH batteries at 100% of rated
capacity.
The total current of the 5395, plus all items attached to it, must not exceed 6 A when the panel is
in alarm. Use Table 4-2 on page 9 to ensure that the current does not exceed 6 A and, that the
desired amount of standby is possible for the battery intended to be used with the 5395.