Toshiba KV-KLR4-120 4-channel Digital Video Recorder with 120 GB HDD
by Toshiba

List Price: $4,000.00
Category: Digital Camera
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Digital Photo Product Details

• Four-channel DVR with 120 GB internal HDD
• DVR uses MJPEG compression format
• DVR is compatible with both PAL and NTSC TV system formats
• Features four recording modes and selectable quality levels
• Includes built-in CD-RW for video backup or distribution

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Description of Toshiba KV-KLR4-120 4-channel Digital Video Recorder with 120 GB HDD

The Toshiba KV-KLR4-120 utilizes MJPEG compression with a maximum recording resolution of 640 x 480 effective pixels at up to 30 fps (frames per second). This unit comes with a pre-installed 120 GB HDD (hard disk drive), and a CD-RW drive for use in either permanent storage of video, or for quick distribution of video to security or law enforcement personnel. The KV-KLR4-120 features full multiplexer operation that allows you to consolidate signals from up to 4 separate cameras, digital watermarking and multiple security levels, pre-alarm image recording with video indexes for easy searching, and detailed system log files. This unit also features continuous, motion detection, and alarm recording modes.

The Toshiba KV-KLR4-120 includes four BNC composite video inputs with one RCA composite video output. This unit also includes four alarm inputs with four alarm outputs for connecting external devices. The KV-KLR4-120 is compatible with both the NTSC and PAL TV system formats, and features PTZ (pan/tilt/zoom) controls and a 10/100 base-T Ethernet connection that allows remote configuration of DVR as well as live and recorded video viewing. Multi-voltage compatible, this unit runs on 100- to 240-volts of AC power and includes an automatic restart with resumption of recording after a power interruption, as well as supporting remote control capabilities through RS422/RS485 connections.

Technical Features:

• Compression format: Wavelit, with 4 recording qualities
• Video inputs: 16 composite video with 16 loop back connections
• Resolution: up to 720 x 480 effective pixels
• HDD space: one 120-GB drive (removable), capacity for up to 2 120 GB HDDs total
• Power supply: 110-volt to 240-volt AC
• Dimensions: 12.5 x 17 x 4.25 inches (W x D x H)

About Digital Video Recorders
A Digital Video Recorder (DVR) takes video signals from security cameras and converts the video stream into a digital format for storage on an internal hard drive. A DVR also provides a user interface to remotely manage many functions of the video files and cameras, including motion detection and pan/tilt/zoom features. At a minimum, a DVR should allow multiple users to view multiple cameras remotely. Effective video compression is one of the most important considerations when looking at DVRs. The most common video compression formats used in video surveillance are M-JPEG and MPEG-4. While proprietary compression technologies may provide superior quality, their lack of compatibility with Windows-based operating systems may become an issue for archival purposes. Issues of frame rate, resolution, disk size, motion detection, compression ratio, and camera noise all affect the storage capacity of a video surveillance system. High resolution is ideal to capture details, while high frame rates are needed to capture events. Frame rates of less than 20 fps tend to be jerky, while rates of 20 - 30 fps can be adequate for most surveillance needs.

Cameras

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