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Wiring an External Mic to a IP Camera

External Camera Cable Pin Out

** Here is an example of an option Mic  “ETS ML1-S SURFACE MOUNT OMNI DIRECTIONAL SURVEILLANCE MICROPHONE” Try and Google to see more information…

There are 2 types of microphones: Active and Passive

  • Active Microphones have a built in pre-amp, and require power to operate.
  • Passive Microphones do not have built in amplifiers, however sometimes can require power.

Active microphones (LOUROE for example):

Depending on the pre-amp the Microphone might require:

* 12VDC. In this case the microphone has to be powered with a 12V DC power supply. These types of microphones are called LINE LEVEL MICROPHONES


* 1.8VDC – 4.5VDC. In this case the Microphone will be powered right from the IP camera itself.

These types of microphones are called MIC LEVEL MICROPHONES


Figure 1 shows the diagram of wiring a LOUROE LE070 LINE LEVEL MICROPHONE

After the camera has been successfully connected to the camera, it is time to change the camera settings, so that the camera can treat the microphone for what it is.

Log in to the camera:

  2. Click on “VIDEO/AUDIO”
  3. Click on “AUDIO”

4.Change the

Microphone type to “LINE IN” if using a LINE LEVEL MICROPHONE

5.Change the Microphone type to “MIC IN” if using a MIC LEVEL MICROPHONE (FIGURE 3)


Passive Microphones are LINE LEVEL MICROPHONES.

When connecting a passive microphone to the camera, change the camera’s Audio Input setting to “LINE IN”.


Passive  microphone  wiring  diagram  is  the  same  as FIGURE  1,  with  the  only difference  of  having  an OPTIONAL POWER SUPPLY(some passive microphones don’t require power, some – do)



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