User's Guide

16
For Proper Operation
Observe the following precautions to use this device correctly. Failure to observe the precautions can result
in malfunction or mechanical error.
TIPS:
About maintenance services
Diagnostic and maintenance services by personnel with expertise on maintenance of this product are
available.
Blade Enclosure
 Use a rack that allows installation of the Blade Enclosure.
 This product must be installed in a restricted access location.
 Remove the dust on the exterior and fans located at the front and rear Blade Enclosure regularly.
Regular cleaning prevents various failures from occurring.
 The voltage may drop momentarily due to lightning. It is recommended to use a device such as
uninterruptible power supply to tackle this problem.
Optional power unit and other electronic devices
 These products are made of very static-sensitive parts. Eliminate static electricity before
handling the products. Do not touch plug terminals or parts with hands. Do not place the
products directly on a desk.
 Do no use any optional devices other than those shipped with switch modules/pass-through
cards or specified by NEC. Even if such optional devices can be installed on the Blade
Enclosure, it may not work properly or can damage the Blade Enclosure.
 It is recommended to use genuine NEC products for optional devices. Some optional devices
from other manufacturers are supported in this device. However, services for tackling
malfunctions or damages caused by them are provided at your expense even in the warranty
period.
Use of cellular phone or a pager around the Blade Enclosure
 Turn off cellular phones and pagers. Radio interference may cause malfunctions of the Blade
Enclosure.
Failure action
 When the device fails, shut off the branch circuit breaker of the power distribution board,
unplug the device and contact your sales maintenance personnel.