Huawei pRRU3901 - General Requirements

pRRU3901Compliance and Safety Manual
Contents
Issue 01 (2012-02-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2-6

The installation and maintenance personnel must receive training in safety precautions.
Only qualified personnel can install or maintain the device.
2.2.2 General Requirements
To minimize the technically residual risk, it is imperative to obey the following rules. Read all
the instructions before operation.
For DC model: Reinforce insulation or double insulation must be provided to isolate DC
source from the AC mains supply.
Installation

The device (or system) must be installed or used in the access restricted location.

When installing the unit, always make the ground connection first and disconnect it at
the end.

The device must be fixed securely on the floor or other reliable objects, such as the walls
and the mounting racks before opera.
Ground

Do not damage the ground conductor or operate the device in the absence of well
installed ground conductor. Conduct the appropriate electrical inspection.

The device (or system) must be connected permanently to the protection ground before
an operation. The cross sectional area of protective ground conductor shall be at least 16
mm².
Power Supply

For DC supplied model: The device applies to DC power source that complies with the
Safety Extra-Low Voltage (SELV) requirements in IEC 60950-1 based safety standards.

Prepared conductors are connected to the terminal block, and only appropriate
AWG/Type of wire is secured in the listed lug terminals.

This device relies on the building’s installation for short-circuit (overcurrent) protection.
Ensure that a fuse or circuit breaker no larger than 80 VDC, 25 A for DC supplied model
is used on the phase conductors (all current-carrying conductors).

For this device, a readily accessible disconnect device shall be incorporated in the
building installation wiring.

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
Human Safety

Do not operate the device or cables at lightning strikes.

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telecommunication network voltage (TNV) circuits.

Do not look directly into the optical port to prevent the laser radiation from injuring your
eyes.

Do not wear jewelry or watches when you operate the device.
Operator

Only qualified and skilled personnel must install, configure, and disassemble the device.