ADT Commercial Fire & Burglary Alarm System FOCUS 200 PLUS, Installation And Setup Manual

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FOCUS 200 PLUS Installation and Setup Guide
12-12
5. In table 8, enter devices connected to Bell 2 output. Calculate alarm currents, then add to get Bell
2 output current subtotal.
Table 8: BELL 2 OUTPUT CURRENT LOAD
Total Current
Device Model # Device Current X # of Units = Standby Alarm
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
Bell 2 Output Subtotal
(terminals 7 & 8) 1.7 amp max
6. In table 9, enter the total calculated subtotals of all listed outputs from Tables 4 through 8, then
add to get the combined current.
Table 9: TOTAL PERIPHERAL CURRENT LOAD
Total Peripheral Standby and Alarm Current Total Current
Standby Alarm
RS-485 Bus #1 Subtotal (see Table 4)
RS-485 Bus #2 Subtotal (see Table 5)
Aux. Relay Terminal 10, if wet (see Table 6)
Bell 1 Output Subtotal (see Table 7)
Bell 2 Output Subtotal (see Table 8)
Add all subtotals
(Refer to step 7 for current limits)
7. Compare the values calculated above with the values from the table in AC Transformer Alarm
Current and Battery Size Limits and Table 10. If the 50VA transformer limits are exceeded, then
use a 72VA transformer. If the 72VA transformer limits are exceeded, then use a supplementary
power supply to carry some of the current load.