DVR Security System Review

The Axis 247S video server is designed for the purpose of converting the video signal of security cameras from analog to digital.  This Axis 247S is significantly smaller than its counterparts in the Axis video server range, its size could prove useful if it needs to be installed in a position where space is limited.  Only one analog surveillance camera can be attached to the video server, it has one BNC input to accommodate the camera.

You can set up an audio system to enable you to hear people who are in the vicinity of surveillance cameras, the video server uses PCM and ADPCM audio.  The device uses motion JPEG and MPEG-4 compression and is compatible with both PAL and NTSC video signals.  The video server has a maximum pixel resolution of 704*576 when operating in PAL mode, in NTSC the maximum resolution is 704*480.  The 247S is capable of streaming video at rates up to 30 frames per second in NTSC mode and 25 frames per second in PAL mode.

The device is capable of activating video recording by means of motion detection, audio detection or scheduling.  You also have the option to attach external alarms to the unit, when the alarms are activated the video server detects their state and activate recording.  To accommodate external alarms the video server is fitted with one alarm input, the device is also fitted with one alarm output to signal you regarding specific camera activity.

The video server is designed to connect to networks so can be used with a LAN within an office or you can connect it to the Internet.  When connected to a network you can control the cameras attached to it from remote locations, a very useful feature for keeping you up to date with camera events when you need to spend extended periods away from your home or business.

Axis video servers include software for installing on Windows that gives you the option to set up a PC as a surveillance camera monitoring station, the 247S also includes the software and mounting brackets for installing the device.  The video server has an internal CPU for processing video images, 32 megabytes of RAM that is supplemented by 8 megabytes of flash memory.

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