Bell System Plant Series Installation And Testing

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BELL SYSTEM PRACnCES
Plant Series
SECTION 506-101-201
Issue 3, February, 1966
AT&TCo Standard
COIN TELEPHONE - 1 A 1
INSTALLATION AND TESTING
1. GENERAL
1.01
This section describes the installation and
testing of the lAl coin telephone.
1.02
This section is reissued to:
• Reflect changes in design.
• Revise illustrations
Since this reissue covers a general revision, ar-
rows ordinarily used to indicate changes have
been omitted.
1.03
The lAl coin telephone should be installed
in accordance with standard installation
practices.
2.
LOCATION
2.01
When selecting a location for the coin tele-
phone, consideration should be given to the
following:
• Accessibility to customers
• Sufficient light
• Privacy
• Absence of noise and vibration
• Clearance from oily or dirty surfaces
• Clearance from stoves or heaters
• Clearance from moving machinery, piled
merchandise, or narrow aisles
2.02 Consult a supervisor before locating coin
telephone oli finishes that would be expen-
sive to repair if the coin telephone is removed.
Customer should arrange to drill holes in glazed
tile, marble, and similar surfaces.
2.03
To avoid inductive effects, locate the coin
telephone and associated wiring at least
6 inches away from neon or fluorescent fix-
tures, transformers, or other interference-caus-
ing equipment.
3. BACKBOARDS
Mount all coin telephone sets on ap-
proved backboards.
3.01
The 178A backboard is designed to be used
with the lAl coin telephone. Secure the
set to backboard with seven screws (Table A).
Screws are not furnished with the coin telephone
and must be ordered separately.
3.02
Refer to section on installation of back-
boards for size and type of fasteners re-
quired for mounting backboard on various
surfaces.
3.03
The lAl coin telephone set should be
mounted 52 inches from the floor when
seat is furnished or 63 inches from floor when
seat is not furnished. Measure distance from
floor to top of coin telephone. These heights may
vary with local conditions or customer's require-
ments.
3.04
Where additional security is required,
place four security studs in the lAl coin
telephone (Table A and Fig. 1). Security studs
are not provided with the telephone set and must
be ordered separately.
Caution: Security studs shown in Table A
have short thread length to avoid interfer-
ence with the coin chute-totalizer assembly.
©American Telephone and Telegraph Company, 1966
Printed in U.S.A. Page 1