Axis Communications 2120 user manual Picture Frequency for Modem Applications

AXIS 2120 User’s Manual Choosing Your Application 35

Picture Frequency for Modem Applications

When used with a modem, the speed of your communications link will normally determine the image frequency in your browser. A standard image is normally transmitted in 2-5 seconds, although optimal image frequency is achieved by buffering the video stream into internal memory before uploading the recorded images to your ISP or Web server. This is the ideal solution for remote applications connected to external security devices and which require a good flow of images from alarm events.

Proprietary ISP Dial-up Protocols

If your ISP requires you to install special software before initiating a Dial-up connection, it is likely that your ISP is using proprietary protocols incompatible with the standard-based AXIS 2120. In these circumstances, Axis recommends that you ask your ISP for an alternative dial-up service that allows for standard dial-up networking, or ask them to provide a standard Linux dial-up connection. Axis does not guarantee the compatibility of this product with any ISP requiring the use of proprietary or non-standard software as a pre-requisite for Dial-up connections.