Hewlett-Packard A5272A - SureStore E Disk System SC10 Storage Enclosure Service Manual
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Brand: HP
Category: Carrying Case
Type: Service manual
Model: HP A5272A - SureStore E Disk System SC10 Storage Enclosure , HP Surestore SC10 - Disk Array
Pages: 50 (0.83 Mb)
Download HP A5272A - SureStore E Disk System SC10 Storage Enclosure Service manual
Installation (HP-Qualified Personnel Only)
Connect To DC Power
Chapter 2 21
Connecting DC Power to High-Availability Systems
NOTE For complete power redundancy in high-availability systems, connect
each power supply to separate power sources. Connect the -48V (A) and
Return (RTN A) leads to one power source and the -48V (B) and Return
(RTN B) leads to a different power source. This will protect the system
from power failure in event one power source fails.
When connecting more than one power supply to two independent power
sources, connect the “A” leads of each power supply to one power source
and the “B” leads of each power supply to another power source.
Connecting all power supplies to the same power source will protect the
system if one power supp ly fails, but not from a failure in the power
source. If you are connecting the power supplies to a single power supply,
connect both the A and B leads on each power supply cable .
Table 2-2 Power Connector Pinouts
Connec tor
Pinout
Description
AWG / mm
2
Color
W1 Ground 10 / 5.26 Green
W2 -48 VDC (A) 10 / 5.26 Red
W3 -48 VDC (B) 10 / 5.26 White
W4 RTN A 10 / 5.26 Black
W5 RTN B 10 / 5.26 Black
Table 2-3 Alarm Connector Pinouts
Connec tor
Pinout
Description
AWG / mm
2
Color
POS 1/W6 Fault Alarm 20 / 0.556 Blue
POS 2/W8 Fan Alarm 20 / 0.556 White
POS 3/W7 Alarm Common 20 / 0.556 Black
POS 4 Not Used