1
HP A7502 300W AC & DC Power Supplies
User Guide
Introduction
The 300W AC (JD226A) is a built-in power supply with AC input and DC output while
the 300W DC (JD225A) is a built-in power supply with DC input and DC output.
Table 1
Features of the 300W AC and 300W DC power supplies
Feature Description
Protection
functions
Support input under-voltage protection, output over-voltage
protection, short-circuit protection, and overheat protection
1+1 redundancy
support
Support dual-power-grid 1 + 1 redundancy and current
sharing using power supplies of the same model
Hot swap support
Support hot swap while the device is in operation
CAUTION:
For a device that supports both AC and DC inputs, you can choose either of the two
types of power supplies as needed. Do not use power supplies of different models in
the same device.
