4
4-2
IP4700 Installation and Service Guide
The Standby Power Supply (SPS)
About the SPS
Two 800-watt dc SPSs provide backup power for one IP4700. Two
SPSs provide for higher availability and allow write caching to
continue when an SPS is faulted or is not fully charged.
Each SPS has two phone-jack type connectors and status lights on the
right side of its rear panel.
IMPORTANT:
Improper storage and handling of an SPS will render the
warranty null and void. Please see Appendix A for appropriate storage
requirements.
Figure 4-1 shows the SPS unit.
Figure 4-1
800-Watt DC 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 ...