Bell System Practices 1A Installation And Maintenance page 2

SECTION 512-610-200CA
• Fasten the cord from the 656A transmitter
to rear of desk by the use of a No. 3 cable
clamp near the top of the desk. Allow
enough slack to move transmitter on top of
the desk but not enough to allow transmit-
ter to strike the floor if· knocked off desk.
2.06
When locating and installing the 758A
loudspeaker:
• Install loudspeaker at least 3 feet away
from telephone set.
• Caution customer not to place objects in
front of loudspeaker.
• Connect cord from loudspeaker to a separ-
ate 42A connecti,ng block to maintain the
3-foot minimum distance.
• Fasten cord from the 758A loudspeaker to
rear of desk by the use of a No. 3 cable
clamp near the top of the desk. Allow
enough slack to move the loudspeaker to
determine the best position but not enough
to allow loudspeaker to strike the floor if
inadvertently it is knocked off the desk.
Fig. 1 - General Location of Speakerphone
System 1A Components with 5928
Telephone Set
Page 2
• Final position of loudspeaker can be
determined by the customer's trying
different positions.
tt
''''R
If loudspeaker is too close to transmit-
~
ter, it will set up a feedback noise in the
D
loudspeaker when volume is turned up
too high.
2.07
For operating procedure refer to the sec-
tion entitled lA Speakerphone System,
Operation. Check the system for the following:
• The ON button should be lighted when
speakerphone is being used.
• If the system is used with a key plan, and
busy lamps are employed, the busy lamp
shall light.
• Check the loudspeaker volume by operating
the volume-control knob on the 592-type
set or the 656A transmitter. Be sure the
customer understands that the volume will
vary on each call and should be adj usted
accordingly.
Fig. 2 - General Location of Speakerphone
System 1A Components with Key
Telephone Set and 656A Transmitter