ADTRAN TDU 120e User Manual page 3

Adtran user manual network device tdu 120e
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The following conventions are used in this manual.
Notes provide additional useful information.
Cautions signify information that could prevent service interruption.
When using your telephone equipment, please follow these basic safety precau-
tions to reduce the risk of fire, electrical shock, or personal injury:
1.
Do not use this product near water, such as near a bathtub, wash bowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool.
2.
Avoid using a telephone (other than a cordless-type) during an electrical
storm. There is a remote risk of shock from lightning.
3.
Do not use the telephone to report a gas leak in the vicinity of the leak.
4.
Use only the power cord, power supply, and/or batteries indicated in the
manual. Do not dispose of batteries in a fire. They may explode. Check with
local codes for special disposal instructions.
Save These Important Safety Instructions
Warnings provide information that could prevent damage to the
equipment or endangerment to human life.
Important Safety Instructions
iii

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