Calculating The System Current Draw; 1: Overview; 2: How To Use Table 5.3 On Page 129 To Calculate System Current Draw - ADT Unimode 9600 Installation And Operating Instruction

5.3 Calculating the System Current Draw

5.3.1 Overview
Table 5.2 Converting to Full Amperes
5.3.2 How to Use Table 5.3 on page 129 to Calculate System
Current Draw
Use Table 5.3 on page 129 to calculate current draws as follows:
1. Enter the quantity of devices in all three columns
2. Enter the current draw where required. Refer to the ADT Device Compatibility
Document for compatible devices and their current draw
3. Calculate the current draws for each in all columns
4. Sum the total current for each column
5. Copy the totals from Column 2 and Column 3 to Table 5.4 on page 130
Following are the types of current that can be entered into Table 5.3 on page 129:
✓ Calculation Column 1 - The primary supply current load that the control panel
must support during a non-fire alarm condition, with AC power applied.
✓ Calculation Column 2 - The primary supply current load that the control panel
must support during a fire alarm condition, with AC power applied.
✓ Calculation Column 3 - The standby current drawn from the batteries in a non-
fire alarm condition during a loss of AC power.