AT&T Bell System 700 Series Installation Manual

BELL SYSTEM PRACTICES
Station Operations Manual
Station Sets
SECTION C38.670.2
Issue 1, May, 1959
AT&TCo Standard
TELEPHONE SETS
700 SERIES
INSTALLATION
1.00 INTRODUCTION
This section covers the 701B telephone set.
• Connection tables are provided in the con-
nections section.
• A typical installation is shown in Fig. 1.
2.00 GENERAL
2.01
A 105- to 120-volt ac receptacle is required
for dial light transformer. Use either of
the following transformers :
• No. 2012A-42.
• KS-16184, List 3.
2.02
For proper dial illumination, the wire be-
tween transformer and telephone should
not generally exceed 150 feet of standard inside
wire.
TRANSFORMER
[ PAIRED WIRE
• Due to added resistance, 25-foot mounting
cords should not be used.
2.03
An ElA ringer should be installed with
each 701B telephone set. This ringer also
serves as a connecting block for the 6-conductor
mounting cord.
• C Section entitled ElA Ringer covers
installation.
2.04
At the request of the customer the ElA
ringer may be omitted, except in the follow-
ing cases:
EIA
• Only ringer on line.
• Service requiring tip-party identification
(message rate, zone registration, automatic
ticketing) .
~\
UT~- -
1
RING2
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Fig. 1 - Typical Installation of 701 B Telephone Set
©
American Telephone and Telegraph Company, 1959
Printed in U.S. A.
Page 1
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