- Adtran Network Adapter Product Manual

DANGER

Do not open the fan assembly or remove rear cabinet cover before

unplugging the cabinet from the electrical outlet. Wait at least five

minutes after unplugging the power cord before removing the rear

cover or power supply. The AT&T System 25 cabinets are not user

serviceable. Some voltages inside the cabinets are hazardous.

This equipment is to be serviced only by qualified technicians.

CUSTOMER WARNING

The Installation and Maintenance Manual is designed for use by

qualified service technicians only. Technician qualification includes

completion of an AT&T hands-on instructor-led course covering

installation and maintenance for this product. The use of these

documents by anyone else might void the warranty. Hazardous

electrical voltages are present inside this product.

SERVICE TECHNICIAN WARNING

1. Never install telephone wiring during a lightning storm.

2. Never install telephone jacks in wet locations unless the

is specifically designed for wet locations.

3. Never touch uninsulated telephone wires or terminals un

jack

less the

telephone line has been disconnected at the network interface.

4. Use caution when installing or modifying telephone lines.