Zte ZXR10 8900 Series Hardware Installation Manual page 19

If heating facilities have been installed in the equipment room,
no valve or air outlet must be left within the room. Air condition-
ing equipment must comply with indoor temperature and humidity
requirements. Moreover, damages to equipment caused by static
electricity and interference on equipment by the electromagnetic
field must be avoided.
Before inspecting the indoor environment of NOC room, the fol-
lowing requirements must be met.
� Static-free Requirements
Equipment room must be laid with antistatic floor or semi-con-
ductive floor leather. In addition, copper foils must be used for
grounding at several points.
Make sure the copper foils are pressed between cement floor
and semi-conductive floor, which is connected with the ground-
ing cable.
� Protection against electro-magnetic interference
Electric field intensity must be less than 300mV/m. Magnetic
field intensity must be less than 11GS.
� Dustproof Requirement
Dust particle density with a diameter that is greater than 5
�
micrometers must be less than 30000/m
Dust particles must be non-conductive, non-magnetic in-
�
ductive and non-corrosive.
The following dustproof measures are recommended:
�
– Doors and windows must be sealed. The external win-
dows must be sealed with double-layer glass and the
doors must be sealed with dustproof sealing strips. The
ideal condition is to seal equipment room with a shutter
equipped with a dust filter device.
– Work clothes and slippers must be kept clean and
changed regularly.
– It is recommended to place operation equipment
in outer room, avoiding frequent access and open-
ing/closing of equipment room door.
– Keep a higher relative humidity within the permissible
range in equipment room to reduce static adherence of
dust.
– Walls and ceiling of equipment room must be painted or
pasted with wall paper. This is better to use lusterless
paint.
� Temperature and humidity requirements
Temperature and humidity requirements are shown in
Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 Installation Preparation
3 .
Table 4.
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