151430-L8 Before You Begin Installation
3-12
1. Total does not include isolator devices or accessory bases.
2. If using door holders, you do not need to consider door holder current for alarm/battery standby, because
power is removed during that time. However, during normal operation, door holders draw current and must
be included in the 9.0A total current that can be drawn from the panel.
3. Use next size battery with capacity greater than required.
4. Maximum SBUS address capacity is 63 SBUS modules. The practical limit is determined by the amount of
SBUS bandwidth consumed by each SBUS module. See section 4.10.2.
5. The IDP-Beam-T draws a maximum of 500mA from auxiliary power when the test feature is used. This
should be considered when determining auxiliary power capacity but not calculated into current require-
ments for day to day operation.
6. The IDP-PhotoR is sold separately from the DNR. Current draw for the DNR + IDP-PhotoR is calculated by
increasing the “Number of Devices” column for each IDP-PhotoR used with a DNR.
7. The DNR housing does not include a Relay circuit board. If a relay is needed, be sure to add one to the
IDP-Relay & IDP-PhotoR “Number of Devices” column for each DNR used for correct current calculations.
8. The FACP can only support 5 devices w/LED’s on. The current draw has been added to the panels alarm
current.
3.6.3 Current Draw Worksheet for SD SLC Devices
Use Table 3-2 to determine current requirements during alarm/battery standby operation when SD SLC devices
are installed. You can install up to 127 SD devices per loop (636 max per panel). Copy this section if additional
space is required.
5495/5499 Power Supply 24 VDC
One input circuit: 15 mA mA
Both input circuits: 30 mA
mA
Alarm: mA
mA
Alarm: mA
mA
Alarm: mA
mA
Alarm: mA
mA
C Notification Appliances Current
mA
D Total current ratings of all devices in system (line A + line B + C) mA mA
E Total current ratings converted to amperes (line D x .001): A A
F Number of standby hours H
G Multiply lines E and F. Total standby AH AH
H Alarm sounding period in hours. (For example, 5 minutes = .0833 hours) H
I Multiply lines E and H. Total alarm AH
AH
J
Add lines G and I.
3
Total ampere hours
required
AH
Table 3-2: Current Draw Worksheet for SD SLC Devices
Device # of Devices Current per Device
Standby
Current
Alarm Current
For each device use this formula: This column X This column = Current per number of devices.
Fire Panel (Battery current
draw)
1
Standby: 290 mA 290 mA
Alarm: 570 mA 570 mA
Table 3-1: Current Draw Worksheet for IDP SLC Devices
Device # of Devices Current per Device
Standby
Current
Alarm
Current
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