Huawei NE05E Hardware Manual page 428

HUAWEI NE05E,NE08E
Hardware Guide
In regions with heavy dust, it is recommended that customers add air filters to
their customized network cabinets to improve the reliability of the network
cabinet.
Ensure that all cable apertures for external cables are sealed properly.
If the network cabinet is installed indoors or in a corridor that is free from rain,
the network cabinet must meet the requirements of IP31 rating protection. (The
first number "3" indicates that the network cabinet can prevent a solid particle
with the diameter equal to or larger than 2.5 mm from entering the network
cabinet. The second number "1" indicates that vertically falling drops shall have
no harmful effects.)
Test conditions/parameters of IP X1: drippage: 1 mm/minute; duration: 10 minutes.
Eligible adjudging criterion for protection:
●
●
Engineering Installation of the Network Cabinet
The engineering installation performance of the network cabinet must meet the
requirements of installing the cabinet on a wall in the main indoor application
scenarios of the network cabinet, such as a basement or corridor.
●
●
The space for routing power cables, optical fibers, and subscriber cables are
planned properly in the network cabinet. Various types of cables are routed
separately and the cables do not cross over each other. The positions of the MDF
and the ODF are proper to ensure that the cable length is proper after the device
is installed.
Ventilation and Heat Dissipation Performance of the Network Cabinet
Requirements on the ventilation and heat dissipation performance of the network
cabinet: Obvious air intake vent and air exhaust vent are distributed in the air duct
of the network cabinet after the device is installed. Due to the difference between
internal and external network cabinet temperatures, the temperature of the air
intake vent must be 10 °C lower than the maximum ambient temperature of the
router device when it is operating. This ensures that each board on the router
equipment satisfies requirements for heat dissipation.
4.1.1.2.3 Requirements for Running Environment C and Installation Planning
In environment C, you need to install equipment in an outdoor cabinet with an air
conditioner or heat exchanger.
Issue 05 (2023-03-31)
No water enters the cabinet.
The water that enters the cabinet must be within the amount that may affect
the normal operation and safety performance of the cabinet. Water must not
accumulate on the insulating parts that may cause electrical leakage within
the creepage distance. Water must not enter the electrical parts or enter the
winding (resistance) that cannot be used in the damp state. No water
accumulates around the cable head or enters the cable.
The network cabinet can be adaptively installed on different walls.
When the wall is not flat, the network cabinet can be leveled so as to be
installed reliably (the recommended adjustable scope is 10 mm at least).
Copyright © Huawei Technologies Co., Ltd.
4 Hardware Installation and Parts Replacement
420