Attaching Mounting Accessories - NEC MultiSync X555UNV User Manual

Orientation
• When using the display in the portrait position, the
monitor should be rotated clockwise so that the left side
is moved to the top, right side is moved to the bottom.
This will allow for proper ventilation and will extend the
lifetime of the monitor. Improper ventilation may shorten
the lifetime of the monitor.
Mounting location
• The ceiling and wall must be strong enough to support the
monitor and mounting accessories.
• DO NOT install in locations where a door or gate can hit
the unit.
• DO NOT install in areas where the unit will be subjected
to strong vibrations and dust.
• DO NOT install near where the main power supply enters
the building.
• Do not install in where people can easily grab and hang
onto the unit or the mounting apparatus.
• When mounting in a recessed area, as in a wall, leave at
least 4 inches (100 mm) of space between the monitor
and the wall for proper ventilation.
• Allow adequate ventilation or provide air conditioning
around the monitor, so that heat can properly dissipate
away from the unit and mounting apparatus.
Mounting on ceiling
• Ensure that the ceiling is sturdy enough to support the
weight of the unit and the mounting apparatus over time,
against earthquakes, unexpected vibrations, and other
external forces.
• Be sure the unit is mounted to a solid structure within
the ceiling, such as a support beam. Secure the monitor
using bolts, spring lock washers, washer and nut.
• DO NOT mount to areas that have no supporting internal
structure. DO NOT use wood screws or anchor screws for
mounting. DO NOT mount the unit to trim or to hanging
fi xtures.
Maintenance
• Periodically check for loose screws, gaps, distortions,
or other problems that may occur with the mounting
apparatus. If a problem is detected, please refer to
qualifi ed personnel for service.
• Regularly check the mounting location for signs of
damage or weakness that may occur over time.

Attaching Mounting Accessories

The monitor is designed for use with the VESA mounting
system.
1. Attach Mounting Accessories
Be careful to avoid tipping monitor when attaching
accessories.
For NEC mounting accessory only*
VESA Mounting Interface (M6)
Mounting accessories can be attached with the monitor in
the face down position. To avoid damaging the screen face,
place the protective sheet on the table underneath the LCD.
The protective sheet was wrapped around the LCD in the
original packaging. Make sure there is nothing on the table
that can damage the monitor.
When using mounting accessories other than NEC compliant
and approved, they must comply with the VESA-compatible
mounting method.
NOTE: Prior to installation, be sure to place the monitor
on a fl at area with adequate space.
*1: WM-55UN-L or WM-55UN-P.
2. Using Option Board
1. Turn off the main power switch.
2. Remove the attached slot cover by unscrewing the
installed screws (Figure 1).
3. Insert option board in to the monitor. Attach the slot cover
by using the removed screws.
NOTE: Please contact your supplier for available option
boards.
Do not apply excessive force to manipulate the
optional board before fi xing it with screws.
Make sure that the board is inserted into the slot in
the correct orientation.
English-6
1
400 mm
Figure 1