Axis Communications 2120 user manual Installing the Audio Module, ❽ Using a screwdriver

AXIS 2120 User’s Manual The AXIS 2191 Audio Module 47

Installing the Audio Module

❶Before installing the AXIS 2191 Audio Module, first install your network camera. Refer to the installation section on page 12. If you intend running the audio module in full-duplex mode, check that the sound card on your computer supports this.

❷If using an external microphone, connect it to the socket provided. To use an alternative input device, (e.g. CD-player or radio) connect it to Line-In on the terminal block.

❸Set the selector switch to Ext to use an external

microphone or device. Otherwise, set to Int to use the internal microphone.

❺Using the supplied cable, connect the audio module’s serial port to the network camera’s serial port.

❻Connect power

to the audio module.

❹Connect a loudspeaker to the 3.5mm socket (amplified speakers only), or to Out on the terminal block (speakers with no amplifica- tion). Other devices (including headphones) are connected to the terminal block.

❼Check that the power indicators on both the audio module and the camera are lit. Note that the power LED will blink during power-up.

❽Using a screwdriver,

adjust the Volume In con- trol so that the Level In LED occasionally shows yellow, but not red.

❾To verify the connection to the AXIS 2191, start Internet Explorer and enter the IP address of the network camera in the location/address field, e.g. 171.1.2.200, as shown here. Configure the audio module from the camera’s adminis- tration pages, as described in the following section.