P-13E313
OR P-25E962
TERMINAL STRIP
NOTE:
ISS 3, SECTION 502-500-120
EXCLUSION SWITCH
ASSEMBLY
LINE
SWITCH
BRACKET
"T" SLOTS
SLOTTED HEAD OF P-180922 SCREW
WAS INSTA L L E D FROM OPPOSITE SIDE
OF
LINE SWITCH BRACKET ON SETS
MANUFACTURED PRIOR TO 6-72.
Fig. 6-D-179935 Exclusion Kit, Installed
2.18
Terminating methods are shown in sections
covering connecting blocks.
Ringer
2.19
The ringers may be connected as individual
line ringer or common audible signals. Refer
to the Service section for the appropriate telephone
set connections.
2.20
Current production models are manufactured
equipped with a C4B or H l B (one-coil)
ringers. These ringers can also be used as
maintenance replacements for the C4A and HlA
ringers. When wiring changes are necessary refer
to the Service section for the appropriate telephone
set.
2.21
Volume control cams project through the
base of the telephone set when equipped
with C4A, B, or Hl-type ringers, and through the
lower left side of the housing on telephone sets
equipped with NlA ringers.
2.22
Volume is adjustable to loud, soft, and off
by either type volume control ringer.
2.23
For ringer cutoff on sets with volume control
cams, remove housing and move the detent
spring from its slot and rotate the cam to the off
position.
2.24
For ringer cutoff on sets with volume control
arms, it is not necessary to remove the
housing. Rotate and exert pressure on the arm
Page 5
SSP
502-S00-120-i03_1974-ll·OS.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 02,2012 18:58:31
