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GOOSENECK USE
This connector allow for connection of a gooseneck microphone. The microphone does
not disables the speaker and panel mic so for operating it is necessary to select GOOSENECK
mic on the special settings configuration to disable the panel mic and to set the talk key in
normal ON/OFF/PTT mode.
PRE AMP SETTINGS
The microphone preamplifier gain can be configured by internal setting as +30 dB (low)/
+40dB (high).
Set to HIGH when using standard headsets equipped with dynamic microphones.
Set to LOW for electret type headsets.
SETTING MICROPHONE GAIN. Holding down the TALK key press Vol- to change from LOW to
HIGH or from HIGH to LOW. The unit will produce a long beep when setting HIGH (default) and
a short beep when LOW.
The electret microphones need to be powered. The dynamic ones don’t need it.
SETTING PHANTOM POWER. Holding down the TALK key press Vol+ to change from OFF
(disabled) to ON (active) or from ON to OFF. The unit will produce a long beep when setting ON
and a short beep when OFF (default).
HEADSET connector pinout
PIN 1
OV (MICROPHONE)
PIN 2
SIGNAL(MICROPHONE)
PIN 3
0V (HEADPHONES)
PIN 4
SIGNAL(HEADPHONES)
R-4-32
NOTE:
Headphones can be ordered with a double or single muff earpiece. In case of using a
double muff headphones, the two speakers should be wired in parallel.
5.10. SIDETONE CONTROL
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The sidetone control adjusts the level of your own voice as you hear it in the headphones.
Set it to the desired listen level depending on the headsets used open or closed muff
models.
NORMAL SETTING to ¼ turn from minimum, left side.
5.11. SPEAKER
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The incorporated speaker allows listening the intercom channels selected. Set desired
volume with the level control keys Vol+/Vol- in 16 steps.
CAUTION:
In case of needing a quick disconnection, hold down the Vol-. The speaker would shut-
off in just a second.
5.12. HEADSET / SPEAKER LEVEL (VOLUME) CONTROL
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The volume control allows attenuating or amplifying the signal sent to the speaker and to
the headphones. You can adjust the level in a step by step basis or quickly by holding down the
key.
ES-203 CL DUAL CHANNEL DESK STATION
