Plantronics T20 User Manual

4

When using your telephone equipment these basic safety
precautions should be followed to reduce the risk of fire, electric
shock, and injury to persons.

1 Read and understand all instructions.
2 Follow all warnings and instructions marked on the product. The

symbol identifies and alerts the user to the presence of important
operating and service instructions.

3 Unplug this product from the wall outlet before cleaning. Do not

use liquid cleaners or aerosol cleaners. Use a damp cloth for
cleaning.

4 Do not locate this product near water, for example, near a bathtub

or sink, in a wet basement, or near a swimming pool.

5 Slots and openings in the base unit and the bottom or back are

provided for ventilation to protect it from overheating; these

openings must not be blocked or covered. The openings should
never be blocked by placing the product in the bed, sofa, rug or
other similar surface. This product should never be placed near or
over a radiator or heat register. It should not be placed in a built-in
installation unless proper ventilation is provided.

6 Do not locate this product in an area where the power cord is

likely to be damaged by foot traffic or furniture.

7 Do not overload outlets and extension cords as this can result in

risk of fire or electric shock.

8 Never push objects of any kind into this product as they may touch

dangerous voltage points or short out parts that could result in a risk
of fire or electric shock. Never spill liquid of any kind on the
product.

9 To reduce the risk of electric shock, do not disassemble this

product,

repair work is required. Opening or removing covers may expose
you to dangerous voltages or other risks. Incorrect reassembly can
cause electric shock when the product is subsequently used.

10 Avoid using telephone equipment during an electrical storm.

There may be a remote risk of electric shock from lightning.

but take it to qualified service personnel when service or

11 Do not use telephone equipment to report a gas leak in the vicinity

of the leak.

12 Unplug this product from the wall outlet and refer servicing to

qualified service personnel under the following conditions:

a) When the power supply cord or plug is damaged or frayed.
b) If the product has been exposed to liquid.
c) If the product does not operate normally by following the

operating instructions. Adjust only those controls that are covered
by the operating instructions because improper adjustments of
other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to
normal operation.

d) If the product has been dropped or the base unit has been

damaged.

e) If the product exhibits a distinct change in performance.

13 Never install telephone wiring during a lightning storm.
14 Never install telephone jacks in wet locations unless the jack is

specifically designed for wet locations.

15 Never touch uninsulated telephone wires or terminals unless the

telephone line has been disconnected at the network interface.

16 Use caution when installing or modifying telephone lines.
17 This product is intended to be supplied by a Listed Class 2 Direct

Plug-In Power Unit rated 9VDC 800mA. Plantronics Part No.

45669-01, rated at an input voltage of 120 VAC, 60Hz and an
output voltage of 9 VDC at 800mA.

18 This product requires AC power in order to operate. In order to

have phone service during a power outage, have another
telephone available that is powered only by the telephone line.

19 Keep all product cords and cables away from operating

machinery.