Power Requirements; About Powering The Focus 200 Plus - ADT FOCUS 200 PLUS Installation And Setup Manual

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In This Section

About Powering the FOCUS 200 PLUS

Providing Adequate Voltage for Each Gateway and Operating Panel
Determining Maximum Length of Gateway Trunk Cable
Determining the Control Unit Power Supply Load
Determining the Size of the Standby Battery
Installing a Power Supply
Connecting AC Power and Earth Ground to the Control Unit
Installing the Standby Battery
Powering Up the Control Unit
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About Powering the FOCUS 200 PLUS
The FOCUS 200 PLUS security system uses either an 18VAC, 50VA plug-in transformer (443216 or
N8167) or an 18VAC, 72VA wired-in transformer (472404), which is hardwired into the premises'
electrical system. The 50VA transformer may be used in any installation except commercial fire
installations. The 72VA transformer may be used in all installations, including commercial fire
installations.
AC Transformer Alarm Current and Battery Size Limits
The total alarm current available and the largest size battery that can be supported depends on which
transformer is used, as specified in the table below.
Transformer
* Total current drawn from aux power 2, aux power 3, aux relay terminal 10 (when wet), bell 1 and bell 2
** Largest battery that can be recharged within 48 hours
While wiring connections are being made or removed, make sure the POWER switch (on control unit circuit
board) is in the OFF position.
We recommend wiring all points and expansion modules according to each section's instructions before
powering up the system for programming and testing.
Total Alarm Current (*)
50VA
72VA

Power Requirements

1.5A
2.3A
S E C T I O N
Largest Battery (**)
24AH
34.4AH
1 2
12-1