Bell System 500 Series Common Installation And Maintenance Information

BELL SYSTEM PRACTICES
AT & TCo Standard
SECTION 502-500-11 0
Issue
4, November 1981
0- AND 1-BUTTON TELEPHONE SETS
COMMON INSTALLATION AND MAINTENANCE INFORMATION
1. GENERAL
1.01
This section contains information for 500-,
1500-, and 2500-series 0- and 1-button rotary
and TOUCH-TONE* telephone dial equipped sets.
1.02
The reasons for reissuing this section are
listed below. Revision arrows are used to em-
phasize the more significant changes.
• Include the new snap-in faceplate
• Add the KS-2019L2 buzzer.
1.03
Refer to the appropriate Service sections for
connection information, and Reference sec-
tions for ordering and piece-part information located
in Division 502.
2. INSTALLATION
A. Faceplate and Housing-Removal and Replace-
ment
2.01
On TOUCH-TONE telephone dial sets, the old
type faceplate (Fig. 1) is held in place by are-
taining clip and screw at the top of the plate. This
faceplate is nonflexible. •The new "snap-in" thin sec-
tion flexible faceplate (Fig. 2) eliminates the need for
retaining clip and screw in the telephone housing .•
(a) To remove the old type faceplate.
(1) Place point of KS-21107L1 releaser or
equivalent at edge of faceplate latch
(Fig. 1).
(2) Push latch toward rear of set until releaser
enters slotted portion of faceplate.
(3) Turn point of releaser under faceplate and
raise.
(b) To replace old type faceplate.
*Trademark of American Telehone and Telegraph Company.
NOTICE
(1) Use the point of the releaser, hold the re-
taining clip in.
(2) Place faceplate into position.
(3) Release the retaining clip.
(c) •To remove "snap-in" faceplate with housing
off set.
(1) Turn housing on side and place one hand in
front of the faceplate holding the housing
securely (Fig. 5).
(2) With the other hand press firmly on the
back of the faceplate until the lower tab
snaps out of the lower housing slot
(3) Remove the upper tab from the upper hous-
ing slot .•
(d) To remove the "snap-in" faceplate with hous-
ing on set.
(1) Pry up middle right or left faceplate edge
and insert a finger under the faceplate.
(2) Bow the faceplate up until the bottom tab
is removed from the housing (Fig. 3).
(3) Remove the upper faceplate tab from the
housing.
(e) To replace the "snap-in" faceplate with hous-
ing on or off set.
(1) Insert lower faceplate tab into the lower
housing slot.
(2) Bow the faceplate by pushing upward from
the back side while pushing down on the
two top corners (Fig. 4).
(3) Tuck the upper tab into the housing slot and
release.
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A.
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