General Safety

Statement

Before installing, operating, and maintaining the equipment, carefully read this document and observe all safety instructions provided herein and written on the equipment itself.

The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. The Company will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.

Ensure that the equipment is used in environments that meet its design specifications. Otherwise, the equipment may become faulty, and the resulting equipment malfunction, component damage, personal injuries, or property damage will not be covered under the warranty.

Follow local laws and regulations when installing, operating, or maintaining the equipment. The safety instructions in this document are only supplements to local laws and regulations.

The Company will not be liable for any consequences of the following circumstances:

• Operation beyond the conditions specified in this document
• Installation or use in environments which are not specified in relevant international or national standards
• Unauthorized modifications to the product or software code or removal of the product
• Failure to follow the operation instructions and safety precautions on the product and in this document
• Equipment damage due to force majeure, such as earthquakes, fire, and storms
• Damage caused during transportation by the customer
• Storage conditions that do not meet the requirements specified in this document

General Requirements

• Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, and performing outdoor installation) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.
• Before installing, operating, or maintaining the equipment, remove any conductive objects such as watches or metal jewelry like bracelets, bangles, and rings to avoid electric shock.
• When installing, operating, or maintaining the equipment, wear dedicated protective gears such as insulation gloves, goggles, and safety clothing, helmet, and shoes, as shown in the following figure.

• Follow the specified procedures for installation, operation, and maintenance.
• Before handling a conductor surface or terminal, measure the contact point voltage and ensure that there is no risk of electric shock.
• After installing the equipment, remove idle packing materials such as cartons, foam, plastics, and cable ties from the equipment area.
• In the case of a fire, immediately leave the building or the equipment area and activate the fire alarm or call emergency services. Do not re-enter the building or affected area until it has been deemed safe by qualified professionals.
• Do not stop using protective devices. Pay attention to the warnings, cautions, and related precautionary measures in this document and on the equipment. Promptly replace warning labels that have worn out.
• Keep irrelevant people away from the equipment. Only operators are allowed to access the equipment.
• Use insulated tools or tools with insulated handles, as shown in the following figure.

• All cable holes should be sealed. Seal the used cable holes with firestop putty. Seal the unused cable holes with the caps delivered with the cabinet. The following figure shows the criteria for correct sealing with firestop putty.

• Do not scrawl, damage, or block any warning label on the equipment.
• When installing the equipment, use a torque wrench with a proper range to tighten the screws. When using a wrench to tighten the screws, ensure that the wrench does not tilt and the torque error does not exceed 10% of the specified value.
• Do not work with power on during installation.
• Repaint any paint scratches caused during equipment transportation or installation in a timely manner. Equipment with scratches cannot be exposed to an outdoor environment for an extended period of time.
• Before operations, ensure that the equipment is firmly secured to the floor or other solid objects, such as a wall or an installation rack.
• Do not use water to clean electrical components inside or outside of a cabinet.
• Do not change the structure or installation sequence of equipment without permission.
• Do not touch a running fan with your fingers, components, screws, tools, or boards before the fan is powered off or stops running.

Personal Safety

• If there is a likelihood of personal injury or equipment damage during operations, immediately stop, report the case to the supervisor, and take feasible protective measures.
• To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telecommunication network voltage (TNV) circuits.
• Do not power on the equipment before it is installed or confirmed by professionals.