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Literature information
The important information concerning correct operation and what you should observe is marked with the following 
symbols.
Precautions
Indicates that users may require caution (including warning / caution).
Alerts users to prohibited actions.
Restricts user actions / provides instructions.
Tips and additional information for operation.
Warning
Negligence could result in death or serious injury.
Do not disassemble or modify the station.
This may result in fire or electrical shock.
Do not connect any terminals on the station 
directly to an AC power line.
This may result in fire or electrical shock.
Do not, under any circumstances, open the 
station.
Voltage within some internal components may 
cause electrical shock.
Caution
Negligence could result in injury to people or damage to property.
Do not install or connect the station with the 
power on.
This may result in electrical shock or 
malfunction.
Make sure the wiring is correct and there are 
no wiring shorts before switching on the 
station.
This may result in fire or electrical shock.
Do not install the station in a place subject to 
frequent vibration or impact. 
This may result in injury.
Install in a place where the station will not 
get easily bumped.
This may result in injury.
Do not put your ear close to the speaker 
when using the station.
May cause harm to the ear if a sudden loud 
noise is emitted.
When testing chime volume and ringtone 
volume, do not hold the handset close to 
your ear. 
May cause harm to the ear if a sudden loud 
noise is emitted.
General Precautions
• Install low-voltage lines at least 30cm (12") away from high-voltage lines (AC100V - 240V), especially inverter air conditioner 
wiring. This may result in interference or malfunction.
• When installing or using the station, give consideration to the privacy rights of subjects, as it is the responsibility of the system 
owner to post signs or warnings in accordance with local ordinances.
• Do not install the station in the ceiling or on the floor. Doing so would prevent maintenance inspections and repairs from being 
carried out. This may result in malfunction.