Hewlett-Packard 2000sa Installation Instructions

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Brand: HP

Category: Adapter , Storage

Type: Installation instructions for HP 2000sa

Pages: 2 (0.25 Mb)

Download HP 2000sa Installation instructions

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HP Carrier-Grade Enclosure
Installation Instructions
This document provides specific information regarding
carrier-grade versions of the HP Dual I/O 2.5" DC-power
Drive Enclosure.
© Copyright 1999, 2011 Hewlett-Packard Development Company, L.P.
*589728-002*
Part number: 589728-002
July 2011
Edition: 2
Cabling information
This section provides cabling information for installing
the HP Dual I/O 2.5" DC-power Drive Enclosure.
NOTE: This carrier-grade product is intended
for use in both common bonding networks and
isolated bonding networks.
Grounding methods
NOTE: This equipment is intended for installation
in Network Telecommunication Facilities.
Two grounding methods can be used when installing
the HP Dual I/O 2.5" DC-power Drive Enclosure:
Grounding using cables from the power-and-cooling
module
Grounding using a single wire from the front of the
chassis ears
> Grounding using cables from the power-and-cooling
module <
Two DC power cables are packaged with each disk
enclosure. Use only the DC power cables provided.
Site wiring must include an earth ground connection to
the DC power source. Grounding must comply with local,
national, or other applicable government codes and
regulations.
The following illustration shows a DC power cable: the
D-Shell connector connects to one of the
power-and-cooling modules in the drive enclosure, and
the three lugs connect to an external DC power supply.
1. Install the enclosure in the rack using procedures
described in the HP MSA System Racking
Instructions.
2. Verify that both power switches are off.
3. Check the DC cable part numbers and read the
labels carefully.
IMPORTANT: One wire is labeled Ground;
the other two are labeled Positive and
Negative.
4. Connect a DC power cable to the first
power-and-cooling module, using the D-shell
connector. Use the up arrow on the shell to ensure
proper positioning before tightening.
5. Tighten the screws at the top and bottom of the shell
connector with a torque between 1.7 N-m (15 lb-in)
and 2.3 N-m (20 lb-in) to attach the cable securely
to the power-and-cooling module.
6. Connect the wire labeled Ground to an appropriate
earth ground.
7. Securely connect the other ends of the DC power
cable to a DC power source.
CAUTION: If the enclosure is connected to
DC power sources that are not within the
designated –48V DC nominal (–36 VDC to
–72 VDC) range, it might be damaged.
8. Using the instructions above, connect the second
DC power cable to the other
power-and-cooling-module and to a DC power
source. If one power-and-cooling module fails, the
second power-and-cooling module automatically
takes the full load.
WARNING! To ensure the safety ground,
at least one power-and-cooling module with
an appropriately terminated ground lead
must be installed at all times.
> Grounding using a single wire from the front of the
chassis ears <
1. Attach the rear brackets to the Carrier-Grade
Enclosure.
2. Attach the left bracket assembly to the left rack rail.
3. Attach the right bracket assembly to the right rack
rail.
4. Insert cage nuts into the rack holes.
5. Align the Carrier-Grade Enclosure with the rails,
and then slide it into the rack until the ears of the
enclosure are about 1 to 2 inches from the rack
front rails.
6. Attach a flat washer between the right mounting
ear (bottom hole) and the rack, and then loosely
attach the bracket to the rear bracket assemblies.
7. Attach the single-hole ground cable lug between
the front right mounting ear (top hole) and the rack
with a lock washer and screw. The recommended
torque setting is 30 lbs-in for the 10-32 screws
provided with the rack mount kit.
NOTE:
The ground cable must be made of 10
AWG or larger copper wire, terminated
with a UL Listed compression lug.
Mating surfaces should be cleaned to a
bright metal finish and an antioxidant
applied before connections are made.
Thread-forming screws with external
tooth lock washers can be used to bond
the enclosure into a rack, if the rack
paint is removed between the rack
mounting flange and the rack.
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