DResearch – User Manual TeleObserver MR3180
2011-02-03
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2.4.9
The audio interface
Use the audio adapter cable which is provided in the accessories to connect external audio devices to
the recorder. The interface (D-SUB 9, female) is wired as follows:
Interface
Pin
Name
Description
1
Audio PWR2
Microphone phantom voltage 2
2
AudioIn2
Audio input 2
3
GND
Audio GND
4
AudioIn1
Audio input 1
5
Audio PWR1
Microphone phantom voltage 1
6
GND
Audio GND
7
GND
Audio GND
8
GND
Audio GND
5 1
9 6
(female)
9
GND
Audio GND
Audio interface pin layout
2.4.10 GPIO-interface – detector inputs and switch relay outputs
Sensor input 1 ... 8
Each of the 8 available inputs is constructed as shown
in the adjacent circuit. All inputs (1. .8) are optical
separated - each positive input contact has to be
associated with its own negative input contact – see pin
out table at the next page.
Sensor systems can be connected as desired
depending on requirements. This allows the MR3180 to
be fully integrated within existing systems.
Relay output 1…2
Each of the 2 relay outputs is constructed as shown
(left).
Here too the connection options enable the recorder to
offer full flexibility for the connection of devices and
systems.
It is possible to connect indicators, diodes and bulbs or
to control other whole systems directly.
Recording module
