SECTION 503-550-1 01
760A
LOUDSPEAKER
(SEE NOTE)
105-130V
60 CYCLE
OUTLET
NOTE:
559 OR
MODIFIED 55A
CONTROL
UNIT
ISEE NOTE)
39A POWER
UNIT
OMIT 55-TYPE CONTROL UNIT, 6668 TRMTR
AND 760A LOUDSPEAKER
WHEN SPEAKERPHONE IS
A
NOT PROVIDED.
TEL SET
B
760A
LOUDSPEAKER
(SEE NOTE)
105-130V
60 CYCLE
OUTLET
A- Using 66E-Type Connecting Block and Internal Speakerphone
B-Using A25B Connector Cable and External Speakerphone
Fig. 4--Two Typical Installation Layouts For 6-Button Key Sets
( 9) Install the housing with both faceplates
removed and fasten housing in place with
four captive screws.
(1 0) Install 51
B
dial faceplate (Fig. 5).
(11) The proper 250-type faceplate (Table A)
must be installed over the 35S3A dial. If
single-line service is provided, the collar, buttons,
and caps must be removed from the •635-type•
key before installing the 250-type faceplate.
Note:
•635-type• key is left in place but is
electrically inoperative. Rewire set as shown
in Table C. (Retain or dispose of collar,
buttons, and caps per local instructions. )
Page 6
(12)
Connect mounting cord by carefully tip p ing
the telephone set up on its front edge to
expose cord connector.
Plug cord into connector
and secure.
(13) Connect handset and cord. Jacks are
provided in both the handset and telep hone
set to receive the proper plug of the
H4DB
cord.
The wedge-shaped end of the cord is p lugged
into the handset and the square end into the
base.
When using these push-in-lock type
plugs make sure the contacts are in
proper position to make electrical
connection with the mating contacts,
•
BSP 503-550-101-i03_1970-12-Q6.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Apr 29, 2012 21:37:18
