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IMPORTANT SAFETY WARNINGS FOR
INSTALLATION
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. However, note that there is a
difference between 4-wire and 2-wire installations.
The following are the ONLY acceptable devices for use in a 4-wire installation:
(Note that two protectors are needed at each installation point.)
• Lucent Technologies 4-type protectors
• ITW LINX LP-type protectors
For 2-wire installations, the following is recommended: (Only one protector is needed
at each installation point.)
• Lucent Technologies 4-type protectors
• ITW LINX LP-type protectors
However, if the above two protectors are not used, the following is acceptable in a 2-
wire installation:
• Lucent Technologies 3BIC (Carbon block) or Lucent 3BEW (gas tube) protectors
NOTE: The 3BIC and 3BEW protectors can be used ONLY for 2-wire installations.
They CANNOT be used for 4-wire installations.
WARNING: This voice terminal is NOT for residential use. It is for business
systems applications ONLY. Use in a residential environment could result in an
electrical short circuit when the telephone wiring is set up to provide other
applications, for example, for appliance control or power transformers. The AC
power used in these applications may create a safety hazard by placing a direct short
circuit across the telephone wiring.