Lucent Technologies MERLIN LEGEND System Manager's Manual page 64

MERLIN LEGEND Communications System Release 5.0
System Manager's Guide 555-650-118
2 About the System
Auxiliary Components
— Protection Accessories. For example, for grounding and protecting
— Miscellaneous Accessories. A power-failure transfer (PFT) telephone
Figure 2–10
accessories, see
Operations Reference (not updated since Release 3.0).
special telephone connections (like a telephone located in a different
building) from lightning strikes and power surges.
used to make and receive calls in the event of a commercial power
failure or an Off-Premises Range Extender (OPRE) used for a
single-line telephone located in a different building from the control unit
and more than 1000 feet away.
illustrates some of these components. For information about these
Chapter 3, ''System Components''
June 1997
Page 2-27
and the Equipment and
Issue 1