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8 Port Active UTP Video Hub 100 Feet To 1,500 Feet, (RJ45 Jacks)

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The Nitek 8 port active video hubs VH851M with dual outputs, built-in surge suppression, ground loop isolation, gain/loss control, and video detection. Systems operate with other Nitek UTP video equipment including, video transceiver hubs, standard video balun transceivers, active transmitters, or any twisted pair equipped camera.

Multi-channel video receiver hubs provide excellent video quality through two video outputs per channel. Twisted pair installations are made with a choice of the standard screw terminal connections, or the modular jack connections featured on the M series. The VH851M can receive video up to 1,500 feet (450 meters) when used with passive transmitters. These hubs provide superior immunity from noise and interference, even when run in common raceways with AC power.
 

VH851M features include:

  • Quality video over ordinary twisted pair cable
  • Built-in surge suppression
  • Built-in ground loop isolation
  • Dual BNC connector output
  • RJ45 jack connector input
  • Convenient access to DIP switches for accurate gain and loss control
  • High immunity to noise and interference
  • LEDs to indicate video detection
  • Highly compact, only one rack unit in height
  • Video can be run in the same cable with telephone, computer signals and power
Size 1 RU x 6.0"D
Power Requirements 24 VAC @ 450mA (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 RJ45 jack connectors
Output Connection Dual BNC Connectors
Wire Size 26 to 12 AWG Unshielded Twisted Pair
Operating Frequency DC to 10 MHz
Recommended Transmission Distance Up to 1,500 feet (450 meters) w/passive baluns
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
Shipping Weight 8 lbs
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

 

vh851m.pdfDatasheet


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Prices and specifications subject to change without notice.