1
1-16
IP4700 Installation and Service Guide
The IP4700
SPS (Standby Power Supply)
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).
Figure 1-12
Rear View of a Single SPS
EMC1466
AC
power
connector
Power
switch
SPS
fault
LED
(amber)
Replace
battery
LED
(amber)
On
battery
LED
(amber)
On-line
LED
(green)
SP
interface
connector
Содержание IP4700
Страница 4: ...IP4700 Installation and Service Guide iv ...
Страница 8: ...IP4700 Installation and Service Guide viii Contents ...
Страница 12: ...xii IP4700 Installation and Service Guide Preface ...
Страница 18: ...xviii IP4700 Installation and Service Guide Warnings and Cautions ...
Страница 60: ...2 2 24 IP4700 Installation and Service Guide Installing an IP4700 ...