Sps (Standby Power Supply) - Dell IP4700 Installation And Service Manual

The IP4700
1

SPS (Standby Power Supply)

IP4700 Installation and Service Guide
1-16
The IP4700 uses write caching and requires an SPS to prevent data
loss during a power failure. Two 800-watt SPS units (see Figure 1-12)
fit beneath the IP4700 and maintain power until write cache data can
be safely stored to the disk. For detailed information about installing
an SPS and cabling it to the IP4700, refer to Chapter 4, The Standby
Power Supply (SPS).
AC
power
connector
Rear View of a Single SPS
Figure 1-12
SP
Power interface
switch connector
SPS
Replace
fault
battery
LED LED
(amber)
(amber)
On-line
LED
(green)
On
battery
LED
(amber)
EMC1466