TAG MIL-BOOK 20 Series - Manual (Page 8)

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About the Modem
Caution
1. Never install telephone wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
3. Never touch non-insulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
5. Avoid using the telephone function (other than a cordless type) during
an electrical storm. There may be a remote risk of electric shock from
lightning.
6. Do not use the telephone function to report a gas leak in the vicinity of
the leak.
7. Do not use this product near water, for example near a bathtub, wash
bowl, kitchen sink or laundry tub, in a wet basement or near a
swimming pool.
Caution (for USA Users)
To reduce the risk of fire, use only No.26 AWG or larger
telecommunication line cord
.