Notes On Connection Of Disk Array Unit - NEC S2500 User Manual

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Treat all connectors carefully so that they may not be dropped on the floor and be
damaged. Do not drag any connector on the floor as dust may adhere to the
connector.
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Do not apply excess force to the connector and cable connected with each other. Do
not step on or place heavy materials on a cable which might deform the cable.
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Handle optical fibers carefully and gently.
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The minimum bending radius of optical fiber shall be 30 mm.
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Dust and/or dirt may attenuate the optical power of optical fiber to cause data errors
to occur. Clean any optical fiber cable whenever it is inserted into the mating
connector with the following procedure. Never clean a connector in which light is
present in the fiber.
4. Use a lint-free "wipe" that has been dipped into alcohol (use of 99% reagent-
grade alcohol is recommended).
5. Followed immediately by a dry lint-free wipe.
6. And finally to blow-dry using a can of clean, compressed air
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Since the DE cable has the possibility that a deterioration of its electrical quality
and/or its mechanical destruction (disconnection) may arise if it is handled
inappropriately, be careful of the following points:
1. Cabling lengths should have a safety margin in order to prevent excessive
stress to connectors and/or cables.
2. Never give cables a jerk or stress.
3. The cables should be kept with a curvature radius of 50mm or more.

Notes on Connection of Disk Array Unit

Confirm the following items before attempting to connect the disk array unit:
Connection cable
Use the provided power cord to connect the disk array unit with the power supply.
To connect the host bus adapter of the host system or the FC-AL switch with the disk array unit, be
sure to use the NEC-specified FC cable.
To connect the disk array unit with the additional disk enclosure, be sure to use the DE cable provided
with the additional disk enclosure or the NEC-specified DE cable (NF9120-SJ33E/SJ34E).
Cable length limit
FC optical cable for operating the host interface at 1Gbps: Up to [500 m]
FC optical cable for operating the host interface at 2Gbps: Up to [300 m]
FC optical cable for operating the host interface at 4Gbps: Up to [150 m]
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