The preceding requirements apply to wireless fixed station terminals.
To prevent electric shock, do not connect the connector of a safety extra-low voltage (SELV) circuit to the connector of a telecommunication network voltage (TNV) circuit.
Do not look into the optical interfaces without eye protection. Otherwise, human eyes may be hurt by laser beams.
Before operating the device, make sure that you:
Wear ESD clothes.
Wear ESD gloves or wrist strap.
Take off the conductive stuff such as watches, bracelets and rings to avoid being shocked.