User's Manual

ADCP-75-347 • Issue 1 • 04/2008
Page 22
© 2008, ADC Telecommunications, Inc.
7 POWER CONSUMPTION
7.1 Power Calculation
Review the Remote Unit order to determine the number of DARTs, number of power supplies,
and the number of SFPs. Use this information to find the power consumption for the doors from
Table 5 and Table 6 when used.
Use the following formula to determine the maximum power consumption and then determine
the circuit breaker or fuse to use.
Enter the power consumption in the spaces provided:
Rear door power consumption from Table 5 _________Watts
Front door power consumption from Table 6 _________Watts
Additional SFP’s _____ x 1.25 _________Watts
_________ TOTAL POWER CONSUMPTION
To determine the current (Amperes) requirements divide the total Watts by the input Voltage:
Once you have calculated the current (Amps) draw determine the circuit breaker or fuse size
based on local codes and practices. Circuit breaker or fuse size must be 20 Amps or less.
Watts
Volts
= Amps