Radio Interference; Maintenance - NEC DTL-12BT-1 series User Manual

Operating Instructions and Maintenance
Tips on Radio Transmission
The working frequency band of this device is shared by industrial, scientific and medical
equipment, such as microwave ovens, premises radio stations that are typically used in
manufacturing lines at plants for mobile identification (radio stations that require licensing)
and specified low-power radio stations (license-free radio stations).
• Before using this device, check that premises radio stations for mobile identification and
specified low-power radio stations are not used nearby.
• If any case of radio interference arises from a premises radio station used for mobile
identification, discontinue radio transmission from this device immediately and contact
your dealer for advice on how to take action for avoiding the interference.
• Further, if any case of radio interference arises from a specified low-power radio station
used for mobile identification or any troubles develop, contact your dealer.
• The ring tone sounding time and call starting time of Bluetooth
delayed compared to the Bluetooth
characteristics.

Radio Interference

Cordless terminals are designed to heighten radio output automatically as the separation
between the Bluetooth
satisfactory state of communication.
Heightened radio output could cause radio interference to neighboring equipment. In this
occurs, keep the Bluetooth

Maintenance

If the Bluetooth terminal and Bluetooth
®
get dirty, wipe their surfaces with a soft, dry cloth.
If they are heavily soiled, wipe them with a diluted
solution of a kitchen detergent and then wipe them
off with a dry cloth.
Never use organic solvents, such as alcohol,
benzine and thinner, for cleaning; these chemicals
could damage the surfaces of the terminal.
Also, avoid using a chemical duster.
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terminal in some cases due to radio transmission
®
terminal and Bluetooth
®
® terminal farther apart from the neighboring equipment.
®
handset widens, thereby maintaining a
®
handset
handset are slightly
®
Dry cloth