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Connecting the optical microphone
CAUTION!
OPTICAL MIC
INPUT
1 2
Switching the central unit on/off
After connection to the mains, the device switches on automatically and the
ON
Adjusting the sensitivity
With the microphone connected and both the gain switch
control
20
+/- 15dB
0
40
0
OVERLOAD
dB
LEVEL
GAIN
Overload indication
The
If the
20
+/- 15dB
0
40
0
OVERLOAD
dB
GAIN
LEVEL
»
Risk of damage to fiber optic cable!
Fiber optic cable must not be bent like conventional cable!
When installing fiber optic cable, make sure not to bend it
beyond a
bend radius
Before connecting the optical microphone, remove the protections caps
from the microphone connections
protection caps in a safe place for reuse during transport or storage. They
protect the microphone connections against dirt.
Connect the duplex connector
1
phone connections
and
correct insertion direction of the connector. The duplex connector is
connected the correct way round when the label on the connector is facing
downwards as shown.
button
lights up.
Press the
ON
button
to switch the MO 2000 CU central unit on or off.
Note:
If the power supply is interrupted for several seconds (e.g. due to a power
failure), the device switches on automatically even if it was switched off
before.
set to 0 dB, the specified sensitivity (mV/Pa) is obtained.
Use the gain switch
to increase the output voltage level by 20 dB
(tenfold increase) or 40 dB (hundredfold increase).
Use the level control
to steplessly adjust the output voltage level
between –15 dB and +15 dB.
OVERLOAD
LED
indicates both positive and negative voltage peaks.
OVERLOAD
LED
lights up:
Use the gain control
and/or the level control
voltage level so that the
OVERLOAD
of 50 mm.
1
2
and
of the central unit. Keep the
of the optical microphone to the micro-
2
of the central unit. Please observe the
to reduce the output
LED
no longer lights up.
and the level
9
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