Safety Warning - Yealink Rch80 Bedienungsanleitung

Safety Warning

The safety warnings in this section indicate that improper operation may cause personal injury.
Read the Quick guide carefully before operating the system; only qualified personnel are allowed to
install or replace the switch.
Safety Principles for Working with Live Circuits:
When working with live circuits, observe the following principles:
1. Remove jewelry (such as rings, necklaces, watches, bracelets, etc.) before operating live cir-
cuits.
2. Ensure the working environment is dry and avoid operating the equipment in humid conditions
3. Metal objects coming into contact with "power" and "ground" may cause short circuits and
damage components.
4. Unplug the AC power cord before operating the chassis or working near the power supply.
5. Do not touch the power supply when it is plugged in; beware of electric shock.
6. Incorrect connections between the equipment and the power outlet may lead to hazardous sit-
uations.
Note:
1. Carefully inspect for potential hazards: such as wet floors, ungrounded extension cords, and
worn power cords.
2. Keep an emergency power-off switch in the workspace to quickly cut off power in case of an ac-
cident.
3. Unplug the power cord before installing/removing the chassis or working near the power supply.
4. Do not work alone if there are potential hazards.
5. Always disconnect the power supply before performing inspections.
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