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3.9 Connection of the Talk-Back Unit
Connection of the talk-back unit is shown below.
SPEAKER
SPEAKER
EX-16
TERMINAL
BOARD
When the talk-back speaker is used as a microphone, sound clearness and
microphone sensitivity vary according to the ambient noise level and in-
stallation position. The sensitivity of the talk-back speaker's microphone
can be adjusted by the input volume control on the front of the TKU-11.
Adjustment is necessary after installation.
TKU-11
Fig.
14
21