FOCUS 200 PLUS Installation and Setup Guide
12-2
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
Table 1: PID Gateway Standby and Alarm Loads
Gateway Unit No. __________ (Maximum 62 Points)
A B AxB C AxC
Device Quantity
Standby
Current (mA)
Total
Standby
Current (mA)
Alarm
Current
(mA)
Total Alarm
Current
(mA)
Non-Powered
Sensors/COPIDS
10 24
System-Powered Sensors with PID
Motion Detector
45 54
Smoke Detectors
50 100
VVS
35 35
VAS
15 34
Teleproach Interface
15 39
Other Gateway Trunk Devices
Switch Interface
45 55
Daytime Annunciator
100 100
Quad-Powered
Sounder PID Module
20 20
BA Supervised Bell
Control
∗
50 40
Sounder
45 45
Total Standby and Alarm Loads
on Gateway Trunk
Standby Alarm
PID Gateway
150 50 5050
Total Gateway Standby and
Alarm Current
Standby Alarm
∗
Bell powered locally