3
Features
P
ower Failure Transfer
Description
Conditions
Connection References
Programming References
Feature References
Operation Reference
— User Manual
If a power failure occurs, a specific extension telephone is
automatically connected to a specific outside (CO) line. This
provides an outside (CO) line call between the following extension
and outside (CO) line.
Outside (CO) line 1 is connected to extension jack number 01.
A single line telephone can work during a power failure. Connect a
single line telephone to extension jack number 01.
• All other conversations, except the above combinations, are
disconnected during a power failure.
• Only an outside (CO) line can have a conversation. All other features do
not work.
Section 2, Installation
2.3.3 Outside (CO) Line Connection
2.3.4 Extension Connection
2.5
Auxiliary Connection for Power Failure Transfer
No programming required.
None
Telephone Features
Power Failure Transfer
P
Features
3-101