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CARRIER RELAYING
of
communication is employed where the opera
tor
pushed
a
switch on the handset to s tart
carrier and connect the microphone to the car
rier transmi tter.
During
period,
the
operator
WEST I NGHOUSE
METER DIVISION
tne
l i stening
releases
the
swi tch.
E L ECTR I C CORPORAT I O N
Whenever
the
handset i s plugged in or lifted
from the desk stand, the carrier alarm circuit
is
opened to prevent ringing during conversa
t ion .
Thi s
alarm
circuit
ringing.
0
I.L. 4 1 - 6 00. 6
i s used for
code
NEWARK, N.J.
Printed i n U.S.A.
'
I
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