Nitek VB31M - Video Balun Transceiver RJ45 Jack

NitekSKU: NT-VB31M

$36.40 $56
In stock


Video balun with pigtail coax and male BNC for operation with other baluns or active receivers.

The VB31M is a UTP video balun transceiver that serves as a UTP video transmission device converting coaxial signals for twisted pair transmission into UTP signals. The VB31M provides a low cost means of sending live video over UTP point-to-point wiring for distances of up to 750 feet (225 meters). The VB31M video balun transceiver operates with other passive CCTV baluns or active video receivers to provide CCTV transmission. Up to 1,500 feet (450 meters) with the TR515 single channel receiver and model 51 series hubs, and up to 3,000 feet (900 meters) with the TR560 single channel receiver and model 56 series hubs. A basic system uses (2) video balun transceivers, one at each end of a twisted pair of wires. These units are intended for use over existing in-house telephone wiring, Category 5 wiring or other twisted pair cable runs to provide a convenient, cost-effective alternative to coax. The VB31M is designed to provide superior immunity from noise and interference even when running next to line power. The VB31M is a UTP transceiver that provides another Security Transmission Solution from Nitek.


  • RJ45 jack connection for twisted pair
  • Quality video over ordinary twisted pair cable
  • Immunity to noise and interference
  • Passive devices - do not require power
  • Mini-coax pigtail for in-camera or dome mounting
  • Weather resistant design
  • Easier to install than coax
  • Compatible with all twisted pair equipped cameras, enclosures and domes


  • Intra-building CCTV installations (instead of coaxial cable)
  • Structured cabling (Cat wiring) environments
  • To eliminate requirement for Plenum Coax
  • Multi-camera applications through conduit (more cameras through a smaller diameter)

Wire and Cable Recommendations

The VB31M is recommended for use with unshielded twisted pair (UTP) wiring. The systems will operate over wire gauges from 26 AWG through 12 AWG. Category 2, 3, 4 or 5 cable may be used. Individually shielded pairs should be avoided, as they drastically reduce the operating range of the systems. Multi-pair cable with an overall shield is acceptable. Video can be operated in the same communication cable coexistent with telephone, computer, control signals, power voltages and other video signals. While video may be routed through telephone punch-down block terminals, any bridge-taps, also called T-taps and any resistive, capacitive or inductive devices MUST BE removed from the pair.

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