Important installation safety instructions – Lucent Technologies AT&T 7400B User Manual

Page 110

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IMPORTANT INSTALLATION

SAFETY INSTRUCTIONS

WARNING

When this product is located in a separate building from the telephone communications system, a
line current protector MUST be installed at the entry/exit points of ALL buildings through which
the line passes.

The following are the ONLY acceptable devices for use in this application:

AT&T 4-type procetors

ITW LINX™ LP-type protectors

Never install telephone wiring during a lightning storm.

Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.

Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.

Use caution when installing or modifying telephone lines.

WARNING

RISK OF ELECTRIC SHOCK

EQUIPMENT MUST BE PROPERLY GROUNDED

Your AT&T equipment requires a properly grounded 3-prong AC power receptacle for safe
operation. Do not cut or remove the third (ground) prong from the AT&T power cord. Do not
use 2 wire extension cords or adapters to defeat the safety features of your equipment. If you
have a 2-prong receptacle, it is very important to have it replaced with a 3-prong receptacle,
installed by a qualified electrician.

Before equipment installation, a qualified technician should use an outlet tester or voltmeter to
check the AC receptacle for the presence of ground as shown in the figure below.

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