VH839
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VH839
The VH839 is an eight port video balun hubs with built-in surge suppression. Systems operate with other Nitek UTP video equipment including, video balun hubs, standard video balun transceivers or active receivers.
The VH839 video balun hubs are multi-channel video transmission devices that provide a low cost means of sending quality live video over Category UTP cabling.
Product Description
The VH839 is an eight port video balun hubs with built-in surge suppression. Systems operate with other Nitek UTP video equipment including, video balun hubs, standard video balun transceivers or active receivers.
The VH839 video balun hubs are multi-channel video transmission devices that provide a low cost means of sending quality live video over Category UTP cabling. The systems can also adapt to existing communication and computer network spare pairs, or new cable installations. The VH839 can send video up to 750 feet (225 meters) when used with other products in the VB37 or VB39 family. When used with model TR515 or TR560 active receivers, distances of 1,500 feet (450 meters) and 3,000 feet, (900 meters), respectively, can be attained. The VH839 is designed to provide superior immunity from noise and interference, such as RFI and EMI.
Features
• Works with any HD TVI/CVI/AHD or NTSC and PAL
• Built-in protection from power surges and transients
• Immunity to noise and interference
• Passive units—require no power
• Video & P/T/Z over a single pair with “up-the-coax” systems when used with passive baluns
• Highly compact, only 1 RU in height Conveniently integrates with Nitek modular systems
• Video can be run in the same cable with telephone, computer signals and power
• Made in the U.S.A.
Tech Specs
| Size | 1 RU x 6.0″D |
| Power Requirements | NONE REQUIRED |
| Video Input Connection | Standard BNC connector for 1 Vpp composite video monochrome or color |
| Video Format | RS170, NTSC, PAL, SECAM, CCIR (Color or B/W) |
| Twisted Pair Connection | Screw terminals providing balanced low voltage current loop |
| Common Mode Rejection | >70dB |
| Operating Frequency | DC to 10 MHz |
| Recommended
Transmission Distance |
w/passive units – Up to 1,000 feet (300 meters)
w/active units – Up to 3,000 feet (900 meters) |
| Transient Immunity | Built-in |
| Wire Spec | 26 to 12 AWG Unshielded Twisted Pair (UTP) |
| DC Loop Resistance | 51 Ohms/1,000 feet (max) (51 Ohms/300 meters) |
| Normal Capacitance | 17pF/ft. |
| Impedance | 100 Ohms +/- 20% |
| UTP Category | 2 or better |
Downloads
VH839 Specification Sheet Last Updated: September 14, 2017
VH839 Installation Manual Last Updated: September 14, 2017
VH839 A&E Specification Last Updated: April 19, 2018