IBM Medium J11, Руководство по установке и обслуживанию оборудования

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• Observe the hazardous voltage warning label affixed to power supply modules.
Electrical safety
• The enclosure must only be operated from a power supply input voltage range of 200–240 VAC,
50/60Hz.
• Provide a suitable power source with electrical overload protection to meet the requirements in the
technical specification.
• The power cord must have a safe electrical earth connection. Check the connection to earth of the
enclosure before you switch on the power supply.
• The system requires voltages within minimum fluctuation. The customer-supplied facilities’ voltage
must maintain a voltage with not more than ± 5 percent fluctuation. The customer facilities must also
provide suitable surge protection.
Important:
• The plug on the power supply cord is used as the main disconnect device. Ensure that the socket
outlets are located near the equipment and are easily accessible.
• Disk Enclosures are intended to operate with two PSUs and four system fans accessed from the rear
panel. Two controller channel fan modules accessed from the top of the enclosure provide additional
cooling.
• Observe the power-supply disconnection caution label affixed to PSU modules.
CAUTION: Do not remove covers from the PSU or any other CRU module. There is a danger of
electric shock inside. Return the plug-in module to your supplier for repair.
Important: The RJ-45 socket on IOMs is not currently supported and must not be connected to a
telecommunications network.
• IBM COS Medium and Large Disk Enclosures are suitable for connection to intra-building or non-
exposed wiring or cabling only.
• IBM COS Medium and Large Disk Enclosures are suitable for installation in locations where the NEC
(National Electrical Code) applies. These enclosures are not suitable for Outside Plant (OSP)
installations.
Rack system safety precautions
• Before installing a Disk Enclosure into the rack, see the Safe handling CAUTION and the Installing the
Disk Enclosure WARNING.
• The rack construction must be capable of supporting the total weight of the installed enclosures. The
design should incorporate stabilizing features suitable to prevent the rack from tipping or being pushed
over during installation or in normal use.
• When loading a rack with enclosures, fill the rack from the bottom up. Empty the rack from the top
down. Heavier enclosures should be located beneath lighter enclosures for optimal stability.
• Do not try to lift the enclosure by yourself.
4 IBM Cloud Object Storage System: Medium/Large J11/J12 Disk Enclosure Hardware Installation and
Maintenance Manual