
Model 4821/4820 Control/Communicator Installation Manual
4-10 150964
4.9.3 Worksheet for Auxiliary Devices (not Silent Knight)
Use Table 4-3 for recording current draw for other devices compatible with the 4821/4820
that are not manufactured by Silent Knight (for example, signaling devices and smoke detec-
tors). Copy this page if you need additional lines to list devices.
Table 4-3: Current Draw Worksheet for Other Devices
Device
Number of
Devices Current per Device
Total
Standby
Current
Total Alarm
Current
Smoke Detectors
Refer to device manual for current ratings.
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Signaling Devices
Refer to device manual for alarm current ratings. Standby current is al-
ways 0 mA.
Alarm: mA
mA
Alarm: mA mA
Alarm: mA mA
Alarm: mA mA
Other Devices
Refer to device manual for current ratings.
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Row B
Subtotal current ratings of all devices in Table 4-3.
mA
Standby
mA
Alarm
Row A
Subtotal current ratings of SK devices from Table 4-2.
mA
Standby
mA
Alarm
Row C
Total current ratings of all devices in system (Row A + Row B)
mA
Standby
mA
Alarm
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