AT&T Bell System Plant Series Installation And Maintenance Manual

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SECTION 502-660-120
Issue 4, September, 1965
AT&TCo Standard
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TELEPHONE SETS
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"''060-, 663-, 1660-, AND 1663-TYPES
IDENTIFICATION, INSTALLATION, MAINTENANCE, AND CONNECTIONS
1.
GENERAL
1.01
This section is reissued to :
• Add connections for the 242B amplifier to
the 663Al and 1663Al telephone sets.
• Change Fig. 14 and 16 to agree with manu-
facturing information.
• Add speakerphone connection for 1660Al
telephone set (Fig. 15 and Table K).
• Change title.
1.02
Due to extensive changes, marginal arrows
have been omitted.
2. IDENTIFICATION
2.01
The 660-, 663-, 1660-, and 1663-type tele-
phone sets (Fig. 1 and 2) are similar in
appearance to other card dialer sets.
EXCLUSION RELEASE
BUTTON BAR
...
'o•
Fig. 1 - 660-Type Telephone Set
2.02
These telephone sets have the electrical and
transmission characteristics of 500-type
sets and are available in the following colors:
Black
(-3)
Green (-51)
Yellow (-56)
White (-58)
Pink (-59)
Light Beige ( -60)
Light Gray (-61)
Aqua Blue ( -62)
Turquoise (-64)
2.03
These sets are furnished wired for indi-
vidual or bridged, and ring and tip parties.
With wiring changes, they may also be used for
tip party identification or with lAl or 1A2 key
telephone systems. In addition, the 660Al and
1660Al telephone sets can be wired for use with
the 3-type speakerphone. This requires replace-
ment of the mounting cord and wiring changes
within the set.
FACEPLATE
CATCH
Fig. 2-1660-Type Telephone Set
©
American Telephone and Telegraph Company, 1965
Printed in U.S.A.
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