The AXIS 2191 Audio Module AXIS 2420 User’s Manual40Installing the Audio Module❶ Before installing the AXIS 2191 Audio Module, first install your network camera. Refer to theinstallation section of this manual. If you intend running the audio module in full-duplex mode,check that the sound card on your computer supports this.❻ Connect power tothe audio module.❷ If using an external microphone, connect it tothe socket provided. To use an alternative inputdevice, (e.g. CD-player or radio) connect it toLine-In on the terminal block.❹ Connect a loudspeaker to the 3.5mm socket (amplified speakersonly), or to Out on the terminal block (speakers with no amplifica-tion). Other devices (including headphones) are connected to theterminal block.❼ Check that the power indicators on both the audio module and thecamera are lit. Note that the power LED will blink during power-up.❺ Using the supplied cable, connect theaudio moduleís serial port to the net-work cameraís serial port.❸ Set the selector switch toExt to use an externalmicrophone or device.Otherwise, set to Int to usethe internal microphone.❽ Using a screwdriver,adjust the Volume Incontrol so that theLevel In LED occasion-ally shows yellow, butnot red.❾ To verify the connection to the AXIS 2191,start Internet Explorer and enter the IPaddress of the network camera in the loca-tion/address field, e.g. 171.1.2.200, as shownhere. Configure the audio module from thecameraís administration pages, as describedin the following section.
