SECTION
512-700-100
Fig.
8-841050818
Retaining Clamp Mounted on AC
Outlet Box Using Outlet Cover Screw
strip, there must be at least one-inch
separation between power units. Only
UL
listed r e c e p t acle strips w i t h
adequate power rating shall b e used.
Use of a continuous terminal power
strip that allows the secondary output
terminals of the power unit to be in
close proximity to the ac line source
is not recommended.
C.
Planning An Installation
3.05
When planning an installation, observe the
following.
(1) Avoid placing apparatus with plastic covers
or parts in location where ambient temperatures
may exceed 140 degrees F.
(2) Install 8581 power unit observing procedures
in paragraph 3.03 and 3.04.
(3) Place loudspeaker set and transmitter within
convenient reach of user and a minimum of
one foot apart.
Page
8
(4) Transmitter must be at least two feet from
transformer or any ac powered device.
(5) There should be no obstructions between
the user, loudspeaker set, and transmitter.
(6) Make connections as shown in appropriate
section for specific telephone set which
indicate grandfathered and registered arrangements.
(7) If 82-type connecting block is used, install
audible signal cutoff using the R ING CUTOFF
or AUX RELAY option as needed.
Use the
leads to common signal control and common
ringer or buzzer circuit for this cutoff feature
(Fig. 10).
(8) For station busy lamp circuit with 4A
speakerphone system, refer to the appropriate
Service section for telephone set involved.
4.
OPERATION
Note:
The 4A speakerphone system permits
normal use of the telephone set for originating,
receiving, or transferring calls.
4.01
To originate a call using speakerphone.
(1) Depress transmitter ON OR QUIET button
and release. The ON lamp will light indicating
speakerphone is turned on, listen for dial tone
transmitted through loudspeaker set. Telephone
handset is not lifted during dialing (except where
handset covers dial !paragraph 4.01(3) ].
(2) Operate dial of telephone set in normal
manner.
(3) When originating calls from telephone sets
which require off-hook dialing, dial in the
normal manner, then depress and hold the ON
OR QUIET button until the handset is restored.
(4) When the complete number is dialed, ringing
tones, busy signals or called party answer
will be heard from the loudspeaker set.
(5) When the called party answers, the transmitter
and loudspeaker set are used to carry on a
hands-free conversation.
Adjust volume level
as desired.
BSP
512-700-100-i05_1979.04·08.jpg Scanned by
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Harrell,
(Cowboy Frank) Castle Rock, Colorado Feb 16,2012 23:01:14
