8-4. SPEECH AND FUNCTION TEST
1.Speech Test
After completing the wiring check and the power supply
and exchange test according to the system flow chart,
the speech test for each station can then take place.
IMPORTANT NOTE
Before testing, all programming (Secretary transfer,
Master/Substation, Executive Priority Function) must
be cleared from station No.200 by turning on the PRO-
GRAM switch of the CPU, or the speech test can not
proceed correctly.
Call every station one by one from any master station
and examine the speech quality and sound volume.
The sound volume can be adjusted by the volume on the
rear of the station. (Fully clockwise for maximum)
A call to a station in the room produces reverbera-
tion and may present broken sound. Turn down the
volume of the station speaker until the sound becomes
normal.
Each station must be located properly where no feed-
back will occur between station and external speakers.
The gain adjustment of the paging amplifier is also
important in order to avoid troublesome feedback.
The
used for the speech test when stations are installed
in high noise areas (more than 60dB noise).
Speech quality (broken sound, natural conversation,
tone quality, etc.) must be tested with each line in
the CLU or DLU employed in the system.