AT&T 500E Reference Manual

BELL SYSTEM PRACTICES
AT&TCo Standard
500E/F, 500H, 500L/M, 500P, 500R/S, 500U, 500W, 500Y, 500AD,
GENERAL
1.
1 .01 This section provides identification, installation,
maintenance, and connection information for
special purpose 500-type telephone sets.
This section is reissued to:
1.02
.•
Add C4B ringer and 516B telephone set.
•
Add Tables Band G.
•
Show G3AR handset and 241A amplifier MD
and replaced by G3A4 handset and 241B
amplifier, respectively.
•
Reference Section 502-500-110 for common
installation and maintenance information (3.01
and 4.01).
•
Add note t o Tables E and I regarding
inductive noise.
•
Revise connection diagrams and tables.
•
Show housing assembly P-87C100 (514B set)
replaced by housing assembly 840205-.
•
Show 500E/F, 50PL/M, and 501F telephone
sets MD.
Changes or additions in the body of tables are
indicated by shaded areas.
Code numbers such as 500E/F cover both
1.03
manual and dial versions, respectively, of
the same type telephone set to permit converting
to either type· without changing the code number
stamped on the base.
the code number of some sets at one time to
indicate the set was equipped with a retractile
handset cord.
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 29,2012
SSP S02-501- 115-i02 1971-05- 0l.jpg
501F, 501P, 501U, 5148, AND 5168 TELEPHONE SETS
The letter was added to
R
© American Telephone and Telegraph Company,
REFERENCE
2. IDENTIFICATION
Purpose
The 500- and 501-type telephone sets are
2.01
single line sets for use in common battery
areas, manual or dial.
Ordering Guide
2.02 All parts of the set enclosed by the housing
mount on the metal base.
and line switch are riveted to the base and are
not replaceable. Table A lists components of these
sets.
These sets are available in all standard colors
2.03
as
indicated in Section 500-120-100. Components
available in color include the dial or apparatus
blank, handset, mounting cord, and housing.
Components other than the housing must have the
code completed by adding the desired color suffix.
The housing P- number must have the desired color
suffix substituted for its last two digits.
Housing assembly P-87C100 has been replaced
2.04
by housing assembly 840205---.
Table B for color ordering information.
Design Features
501-type telephone sets are identical to a
2.05
similarly coded 500-type set except for the
addition of a 3-element, cold-cathode, gas-filled tube,
coded 426A.
with 52- or 53-type headsets.
(a) 500E/F (MD)
•
Equipped with P-19A411 plunger switch
(Fig. 5) to avoid interference with dialing
or talking of another customer on a party
line.
•
With set off hook, only the receiver is
bridged on the line as a monitor until the
Printed in U.S.A.
23:46:58
SECTION 502-501-115
Issue 2, May 1971
The network
The 514B set provides jacks for use
and
501F (MDJ:
1971
Revised March 1972
Refer to
1
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