DVR Security System Review

Here is the Mitsubishi DX-TL4516U and the security recorder uses JPEG 2000 compression and accommodates up to 16 security cameras. JPEG 2000 video compression is based on wavelet compression and generally takes less time to decompresses video than standard JPEG compression. If you have been looking for a DVR that uses both lossy and lossless video compression the Mitsubishi model may be the solution.

Video is stored on the internal hard drive built into the system, this has a 250-gigabyte capacity as standard, the recorder has two hard drive bays and can accommodate up to 1 terabyte of internal storage. The recorders built in DVD burner gives you further options when it comes to recording surveillance camera footage and it can also copy video to standard CD. At maximum the DVR can record surveillance camera footage at 120 frames per second but the system only supports NTSC video signals

You can record surveillance camera footage continuously with the DVR or you can attach up to 16 external alarms to it, the system will detect when an alarm has been activated and begin recording video. There is also a pre alarm recording facility that can be used to view occurrences that lead to events, the systems motion detection capabilities can also be used to activate and deactivate recording.

There are four USB ports built in to the Mitsubishi DVR and these can be used to attach a multitude of devices to the system such as hard drives, joysticks or mice. You can record audio with the system but the drawback is that the device has only one audio input and one audio output. When monitoring the cameras attached to the system you can view the feed from multiple cameras simultaneously with one monitor.

The DVR can be attached to either a TV or monitor and has a total of 4 video outputs; there are two BNC video outputs, 1 S-Video output and one RCA output. Surveillance camera footage can be searched for based on the date and time of an event or you can search for periods when the DVR detected motion on attached cameras. The systems RJ-45 Ethernet port gives you the option to set up additional monitoring stations and it can be used to connect the device to the Internet so you can monitor the system from anywhere.