DBS3900 LampSite
Installation Guide
7 Installing a pRRU3901
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
66
Specificat
ions
Condition
Remarks
1800 m to 4000 m
Above the 1800 m altitude, the
maximum operating temperature
decreases by 1 °C each time the
altitude increases by 220 m.
Other Running Environment Specifications
The pRRU3901 cannot be installed at an air outlet of the heat dissipation box of an air
conditioner or other heat-generating appliances.
The pRRU3901 cannot be installed near a strong heat source.
The pRRU3901 cannot be installed in a position with water dripping, such as outdoor
equipment of air conditioners, pipe, and leaking or dripping roofs.
The installation position must be far from rains. If the pRRU3901 is installed on a wall,
there must be no window on either side of the wall.
The installation position must be far away from high voltage, highly corrosive devices,
flammable or explosive substances, and electromagnetic interference such as power
stations, high-voltage substations, and wired TV towers.
The pRRU3901 must be installed in a dry, ventilating, and dust-proof place.
If the pRRU3901 is installed in parking areas or basements, the installation position must
be well-ventilated.
7.2 Obtaining the MAC Address (Optional)
Before installing a pRRU3901, record the media access control (MAC) address, which will be
used during pRRU3901 commissioning. This section applies only when a pRRU3901 with
three transmission ports is configured with a Wi-Fi daughter board.
Context
The MAC address indicates the IP address through which a device can be reached.
Procedure
Step 1
Remove the backup WIFI MAC label from the front housing of the pRRU3901 and keep them
secure, as shown in Figure 7-2.
Do not remove the WIFI MAC label on the side of the pRRU3901 housing.
Before removing the backup WIFI MAC label, photograph it.