Providing Adequate Voltage For Each Gateway And Operating Panel - ADT FOCUS 200 PLUS Installation And Setup Manual

FOCUS 200 PLUS Installation and Setup Guide

Providing Adequate Voltage for Each Gateway and Operating Panel

To determine that each gateway and each operating panel will have adequate voltage, the voltage drops
along the RS-485 bus must be calculated. Use the procedure below along with the tables and forms that
follow to determine whether an additional power supply is needed.
Calculating the Current Loads for Each Gateway
Device
Non-Powered
Sensors/COPIDS
Motion Detector
Smoke Detectors
VVS
VAS
Teleproach Interface
Switch Interface
Daytime Annunciator
Quad-Powered
Sounder PID Module
BA Supervised Bell
Control ∗
Sounder
Total Standby and Alarm Loads
on Gateway Trunk
PID Gateway
Total Gateway Standby and
Alarm Current
∗
Bell powered locally
12-2
Table 1: PID Gateway Standby and Alarm Loads
Gateway Unit No. __________ (Maximum 62 Points)
A
Standby
Quantity
Current (mA)
System-Powered Sensors with PID
Other Gateway Trunk Devices
Standby
1
Standby
B AxB
Total
Standby
Current (mA)
10
45
50
35
15
15
45
100
20
50
45
50 50
C AxC
Alarm Total Alarm
Current Current
(mA) (mA)
24
54
100
35
34
39
55
100
20
40
45
Alarm
50 50
Alarm