User`s manual

Battery and
Power Supply Considerations
Steady State Current Drain
Use Table 2-3 to calculate your system’s current
drain. Each Security System 8300 device is
listed; add in the current drain of other sensors
and peripheral devices that are powered from the
System. Calculate to see if the standard power
supply and battery are adequate for your needs,
NOTE:
Where conflicts appear with UL requirements, be
sure to use only the UL ratings for any UL Listed
installation.
Table 2-3 Power Drain for System Components
Device
Keypad, Display
Keypad
Basic CCU
2-Line Switcher Option
(see Note 5)
Ground-Start Relay Option
Wireless Option Module
Adjunct Communicator
8-Channel Module Option
(see Note 6)
X-10 Device Driver Module
Option
Hardwired Loops (each)
Interruptible power for
hardwired Fire sensors
(max.9-15 VD output)
Auxiliary Devices
(max. 1 1 O-l 5 VDC output)
Sirens
(max 9-l 5 VDC output)
Battery Charger (charging)
AC Powered
70ma
50ma
257ma
30ma
20ma
2.5ma
75ma
500ma
1.5A each/2A
total
500ma
Battery Powered AC/Alarm
50ma 170ma
38ma 56ma
257ma 297ma
20/40ma
Battery/Alarm
1 00ma (50ma)
(see Note 7)
44ma
257 (40ma for
15min)
20/40ma
30ma
20ma
30ma
30ma
20ma
20ma
(25ma)
(25ma)
(see Note 7) (see Note 7)
2.5ma
75ma
2.5ma
75ma
500ma
1.5A each/2A
total
500ma
1.5A each/2A
total
2.5ma
75ma
500ma
1.5A
each/2A
total
NOTES:
1.
The first column (“AC Powered”) lists the currents drawn by the various devices (or available from the system) under
normal circumstances (no alarms or troubles).
2. The second column (“Battery Powered”) lists the currents drawn by the same devices (or available from the system)
under the same conditions except that AC power has failed and the system is running off the CCU battery.
3. The third column lists the total current drawn by that device during operation in the “alarm” state, with AC power ON.
4. The fourth column is total current during “alarm” operation, but with power supplied by the battery rather than by AC
power.
5. The 2 line switcher uses 20 ma to seize line 1, 40 for line 2 (20 to select 2, and 20 to seize it).
6. The 8-Channel driver will provide 25ma to the selected channel until the alarm is canceled.
7. Currents shown in parentheses exist during the audible alarm period (usually 15 minutes) or during the time necessary
for the device to perform its action (seize and hold the phone line, or send a signal to the 8-channel transmitter).
AT&T Security System 8300 Installer’s Manual
2-9