Bell System Practices 630 Series Installation And Maintenance Manual page 9

1ss 4, SECTION 502-600-100
2.24
To provide multiline conference feature it
is necessary to replace the ke]-s. Refer to
Section 512-X3 O-1O4 for specific conversion procedure.
1110
APPARATUS
9LANK
>508.TYPE
PLuGS
INSULATED
AND STORED
Fig. 14—insulating and Storing 508-Type Plugs on
111 B Apparatus Blank
E. Dials
2.25
The dial mounting bracket will accommodate
either a rotary dial or a TOUCH-TONE@
dial. To interchange dials early model sets–
( 1 ) From TOUCH-TONE service to rotary, add
9971 Zl&43 and 997121835 adapter bracket to
rotary dial (Fig. 15).
(2} From rotary to TOUCH-TONE service, dial
mounts directly to frame assembly.
Note:
Later model CALL DIRECTOR sets
have a snap-in dial mount. The TOUCH-TONE
sets use t~vo %40704969 clips and mounts in
the lower and center holes in the dial frame.
In rotary sets, two 840704957 clips and two
814455;382 screws mount the dial in the upper
and center holes in the dial frame.
(3) Refer to appropriate Reference section for
faceplate and mat ordering information.
BRACKET
Fig 15 — Placing Dial Adapater
Dial When Converting
Dial
F.
Buzzers
Brackets on Rotary
from TOUCH-TONE
2.26
Current model CALL DIRECTOR sets are
furnished from the factory equipped with a
KS-20419L1 (10 volt ac only) buzzer (Fig. 16).
2.27
In early model CALL DIRECTOR sets,
KS-81OO type buzzers were mounted at
location shown in Fig. 16 and 18.
2.28
If a second buzzer is required, a KS-20419L1
can be mounted at any convenient location
using a single screw and KS-8109L2 at location
shown in Fig. 16 or 18.
Note:
Telephone sets manufactured between
June 1964 and April 1966 and equipped with
a one-piece bezel must have the 814454096
(P-44 E409) bracket assembly [includes modified
814454107 (P-44 E41O) bracket, Fig. 17] installed
before the KS-8109L2 buzzer can be mounted.
G. Station Busy Lamp
2.29 To
provide station busy lamp feature with
telephone sets equipped for both handset
and headset operation and 590- and 6t50-series keys
install a 840362909 Printed Wiring Board Assembly,
ordered separately, ( Fig. 19). The printed wiring
board assembly is provided tvith adhesive backing
to permit mounting on any clean, flat surface.
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