AT&T Network Adapter 25 Installation And Maintenance Manual page 3

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 b y
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
telephone line has been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
DANGER
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