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AT&T Bell System 700 Series Installation Manual
AT&T Bell System 700 Series Installation Manual

AT&T Bell System 700 Series Installation Manual

Telephone sets

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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
------
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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Bell system 701b