HP StorageWorks 2000sa User manual

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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1. Lock washer
2. Screw
3. Flat washer
4. Bolt
5. Ground cable lug. Position between ear and rail (cable
not shown).
8. Loosely attach the rear brackets to the rear bracket
assemblies.
9. Attach the loose end of the ground cable to the front
rack ground rail using the provided bolt and lock
washer.
10. Verify that the Carrier-Grade Enclosure is evenly
spaced between the right and left rack rails, and
then tighten the front and rear bracket screws.
Gigabit Ethernet port cabling
Gigabit Ethernet Ports (intra-building ports) of the HP
Carrier-Grade Enclosure require the use of shielded
Ethernet cables grounded at both ends. Furthermore,
please note the following:
CAUTION: The intra-building ports of the
equipment are suitable for connection to
intra-building or unexposed wiring or cabling
only. The intra-building ports of the equipment
MUST NOT be metallically connected to interfaces
that connect to the Outside Plant (OSP) or its
wiring. These interfaces are designed for use as
intra-building interfaces only (Type 2 or Type 4
ports as described in GR-1089-CORE, Issue 4)
and require isolation from the exposed OSP
cabling. The addition of primary protectors is not
sufficient protection in order to connect these
interfaces metallically to OSP wiring.
Power specifications
Environmental specifications (operational):
•Nominal Input Voltage: -48VDC
•Rated Input Voltage: -40 VDC to -75 VDC
•Rated Input Current: 10.4A
•Rated Input Power: 500W
•Power load (single line, both lines powered): 220
watts per line, 441 watts total
•Power load (single line, one line powered): 432
watts
•Peak inrush current: 30 amps (specification limit)
•Battery Return Terminals are Isolated DC Returns
(DC-I)
Replacing the power-and-cooling module
In the event a power-and-cooling module or its internal
cooling fan fails, the power-and-cooling module must
be replaced. This should take approximately 5 minutes.
For instructions on replacing the power-and-cooling
module, see the HP DC Power and Cooling Module
Replacement Instructions. This document is provided with
the replacement DC power-and-cooling module and can
also be found at http://www.hp.com/support/manuals.
Under Storage, click Disk Storage Systems, and select
your product.
Preventing electrostatic discharge
To prevent damaging the system, be aware of the
precautions you need to follow when setting up the
system or handling parts. A discharge of static electricity
from a finger or other conductor may damage system
boards or other static-sensitive devices. This type of
damage may reduce the life expectancy of the device.
To prevent electrostatic damage:
•Avoid hand contact by transporting and storing
products in static-safe containers.
•Keep electrostatic-sensitive parts in their containers
until they arrive at static-free workstations.
•Place parts on a grounded surface before removing
them from their containers.
•Avoid touching pins, leads, or circuitry.
•Always be properly grounded when touching a
static-sensitive component or assembly.
For more information on static electricity, or assistance
with product installation, contact your HP authorized
reseller.
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