Bell System Practices TELEHELPER Identification, Installation, Connections, Operation, And Maintenance page 5

MTG
CORD
SLOTS
to the microphone port (Fig. 4). Also avoid lo­
cating in noisy locations and near sources of
heat and dust.
3.07
To allow for independent associated telephone
set or speakerphone portability, a D-180882
Kit of Parts (ordered separately) can be installed as
follows.
Plug the 304A adapter (Fig. 7) into a 625-type
•
connecting block or equivalent.
Remove battery and cord connections cover
•
from bottom of speakerphone.
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 23,2012 22:57:20
BSP 512-750-100-i01-i01_198·0S. jpg
Fig. 4-Bottom of TELEHELPER Speakerphone
ISS 1, SECTION 512-750-100
COVER HOLD DOWN SCREWS
Plug one end of the D8AA mounting cord into
•
the larger (8-conductor) jack on the 304A
adapter and the other end of the cord into the
speakerphone jack labeled LINE.
Plug one end of the standard D4BU mounting
•
cord into the smaller 6 conductor jack on the
304A adapter. Plug the other end of the
D4BU mounting cord into the telephone set
jack.
Replace battery and cord connections cover.
•
Note: When disconnecting a speakerphone
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