CCTV

Jul 1, 1997 12:00 PM, By Staff

           

The DECO1 decorative camera housing mount is suited to flat surfaces and indoor and outdoor applications. Made of UV-resistant Lexan 503, it will not fade or become brittle in extreme conditions, according to manufacturer Videolarm, Decatur, Ga. Two holes in the top of the mount guide wiring through a hollow core, concealing conduits, coax or power supply. The head pans 360 degrees and can be tilted 90 degrees.

The VTT1000 adapter is a passive device that allows baseband video to be transmitted up to 1,200 feet over regular telephone wire. Unshielded twisted pair (UTP) wiring requires just two VTT1000 adapters. Common video sources such as NTSC, SEAM and PAL will travel safely and effectively over UTP, according to manufacturer VTTI, Sunrise Beach, Md. The adapter comes with a male BNC connector and two terminal screws. The male BNC allows the VTT1000 to be connected directly to the back of the source or destination equipment without a jumper cable.

Dallas-based Prism Video has added an eight by one audio/video switcher module, DSP Truespeech audio and eight selectable inputs to its MOLE telesurveillance product line. The 8:1 switcher accepts eight BNC video inputs and eight two-wire audio connections. Each audio and video input is separately switchable, and sequence order and dwell times for each are set in the system administrator's database. The switcher also has a video-out port. Introduction of a Windows 95 user interface for the entry-level system is anticipated.

An FCC-approved, 2.4Ghz wireless video system in color and black-and-white is available from Clover Electronics, Commerce, Calif. It includes a wireless CCD camera, wireless receiver, two power supplies and cables and hardware. It penetrates walls and ceilings, has a range of up to 700 feet and comes with a one-year warranty.

A video surveillance management system controls up to 120 cameras, 256 alarms, 128 relays, eight analog devices and eight color or monochrome monitors through a single Intel Pentium PC running Windows NT with an integrated video switching board. The Windows NT-compatible version of the Patriot Series video surveillance management system is available from Shepherd Surveillance Solutions, Manchester, N.H. It supports keyboard, touch screen, joy stick and mouse-driven controls.

The 147V video and data transmission system supports simultaneous transmission of four channels of video and bi-directional control data over one optical fiber, according to manufacturer Fiber Options, Bohemia, N.Y. A complete 147V system consists of a transmitter and receiver and incorporates video presence, data presence and level/loss status indicators to monitor signal quality. Incorporating AGC circuitry, the system requires no field adjustment at installation or thereafter, according to Fiber Options. It accepts RS232, RS422, RS485 (two or four wire), Manchester (or biphase), TTL, relay/contact closure data or DTMF.

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