DVR Security System Review

The Axis 240Q allows you to integrate analog security cameras into a digital surveillance system. The video server has four BNC ports for accommodating your analog cameras and it uses motion JPEG compression, the device has a significantly lower frame rate than its 241s counterpart. At maximum your looking at 6 frames per second when recording in video in NTSC format and five frames per second when recording video in PAL mode. The frame rate for the video server is adjustable and you can also adjust the bandwidth usage of the device.

Video recording can be activated by connecting external alarms to the video server, the Axis 240Q has four inputs for the connection of external alarms. The Axis video server also has four alarm outputs, Another way of activating video recording is with its built in motion detection feature or by the use of scheduling. The video server has a maximum image resolution of 704*480 in NTSC, in PAL mode the maximum image resolution is slightly higher at 704*576.

The images from the Axis 240Q can be manipulated in numerous ways, the video server has the ability to rotate images and it can display them in both color and black and white. A de-interlace feature is also built in and it has overlay capabilities so details such as the date or time can be incorporated into images. Connecting analog cameras to the video server gives you the ability to view their output over the Internet.

A variety of network protocols are supported by the video server and these include HTTP, HTTPS, SMTP, DDNS and more. The software included with the video server allows you to set up a system that will keep you informed about key events picked up by your surveillance cameras. When specific alarms attached to the video server are activated you can configure the system to email you images picked up by the cameras.

PTZ cameras can be attached to the video server and you can control their position through a PC with a Windows compatible joystick. Other ports not yet mentioned include an RS-232 port and a 485/422 half duplex port. The Axis video servers on board processor is an ETRAX 100LX and it also has 32 MB of RAM that is supplemented by 8MB of flash ram.

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