1
1 Packing List
Check the contents against the following packing
list. In case of shortage or breakage of any of these
items, contact your local dealer immediately.
Table 1
Packing list
Item
Quantity
RPS500-A3 1
Rack-mounting ears
2
Rack-mounting ear screws
8
Foot pads
4
2 Product Overview
2.1 Introduction
The RPS500-A3 is an external DC power supply
unit that uses AC input and provides DC output for
multiple switch and router models as a redundant
backup power supply system.
The RPS500-A3 supports cold backup of power
supply commonly, which mean that the RPS500-A3
only switches to the DC output state when it detects a
power supply failure of the powered device. When the
powered device’s own power supply system is
