ASL INTERCOM PS 155 Bedienungsanleitung Seite 8
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User Manual PS 155 / Issue 1
8
2001 ASL Intercom, Utrecht, Holland.
8
7.0 SIDETONE ADJUSTMENT PROCEDURE 8.0 VOX ADJUSTMENT PROCEDURE
•
Connect the interface with a proper cable
to the wireless unit.
•
If the wireless unit has a volume control
turn it down (volume approx. 10%, a
volume that is too high can cause
problems such as distortion).
•
Connect the interface to the wired ASL-
intercom
•
Put the ‘send’ and ‘receive’ volumes in the
12 o’clock position.
•
Put the switch TX CONTROL to PTT and
close the externally connected PTT
contact.
•
Depress the ‘Test tone’ button with a pen
or pencil.
•
Listen to one of the wireless units
•
Adjust the three sidetone trimmers to a
minimum audio level on the wireless unit.
•
Repeat the adjustment of the three
trimmers over and over until you are sure
that you found the minimum setting.
If needed you can turn up the SEND
volume of the PS 155 while adjusting the
trimmers.
Before this procedure is done the SIDETONE
must have been adjusted properly !
•
Switch the ‘TX CONTROL’ to VOX
•
Turn the trimmers ‘LEVEL’ and ‘RELEASE’
counter clockwise
•
Adjust with the trimmer ‘LEVEL’ the level to
which the interface should react (Rx/Tx led
changes from green to red)
•
adjust with the trimmer ‘RELEASE’ the
release time of the interface.
9.0 TX MODE switch
To send audio of the wired ASL system to the
wireless system the transmitter has to switch
from receive to send, this can be done in
three ways :
1. PTT (push to talk) by closing a
contact connected to de SubD-9
connector. When this contact is
closed the interface and the
wireless unit switch from receive to
send.
2. CALL, when a CALL signal on the
wired ASL system is detected the
interface switches the wireless unit
from receive to transmit. All buzzers
on the wired ASL-intercom will be
muted automatically.
3.
VOX, when an audio signal on the
wired ASL-intercom system is
detected that exceeds a threshold
the interface switches the wireless
unit from receive to transmit. The
threshold level and release time are
adjustable by the trimmers at the
front panel.
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