32 channel passive UTP balun hub

Model Number: VH3239

  • 32 Port UTP Video Hub;
  • Up to 750 feet (225 meters) with passive transceivers
  • Up to 3,000 feet (900 meters) with active recievers
  • The VH3239 is a 32 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 VH3239 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 VH3239 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 VH3239 is designed to provide superior immunity from noise and interference, such as RFI and EMI.

    • Quality video over ordinary twisted pair cable
    • Built-in protection from power surges and transients
    • High 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 one rack unit in height
    • Conveniently integrates with Nitek modular systems
    • Video can be run in the same cable with telephone, computer signals and power

    Wire and Cable Recommendations

    Twisted Sender is recommended for use with unshielded twisted pair (UTP) wiring. The systems will operate over wire gauges from 26 AWG through 12 AWG but are optimized for 24 AWG. Category cabling 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.

    For more specific information regarding wire types, gauges and proper installation techniques, please call (800) 528-4343 for technical assistance.

     Transceiver Unit
    Size 1 RU x 9.5" (D)
    Power Requirements 24 VAC @ 800mA
    (Wall transformer provided with unit)
    Video Input Balanced low voltage current loop
    Video Output 1 Vpp composite video
    monochrome or color
    Common Mode Rejection >70dB
    Video Format RS170, NTSC, PAL, SECAM,
    CCIR (Color or B/W)
    Twisted Pair Connection Screw terminals providing balanced low voltage current loop
    Operating Frequency DC to 10 MHz
    Recommended Transmission Distance w/passive units - Up to 750 feet (225 meters)
    w/active units - Up to 3,000 feet (900 meters)
    Transient Immunity Built-in
    Temperature Range -20 degrees C to +55 degrees C
    Humidity Range 0 to 98% non-condensing
    Enclosure Type Standard 19" rack 1 RU in height
    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

    Select a type of online documentation:

    VH3239 Specification Sheet
    VH3239 Installation Manual
    VH3239 A&E Specification
    VH3239 A&E Specification
    VH3239 Visio Drawing
    VH3239 Autocad Drawing