The 8400-Series Voice Terminals Instructions for Installation, Switch,
Administration, and Programming the Options
555-015-725
Issue 1
October 1996
Page iii
IMPORTANT SAFETY WARNINGS
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 Technologies 3BEW
(gas tube) protectors
The 3BIC and 3BEW protectors can be used ONLY for 2-wire installations. They
CANNOT be used for 4-wire installations.
!
CAUTION:
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.
