By: Nitek
Video Transmission Solutions
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
Active Video Balun Set For Transmission Of CCTV Over Unshielded Twisted Pair (UTP) Transmission From 1,000 Feet (300 Meters) To 12,000 Feet (3,600 Meters).

The Nitek Twisted Pair Video Transmission System EX1120 is a complete twisted pair video system made up of a TR1120 receiver unit and a TT1120 transmitter unit. The system is designed to operate over Category wire or twisted pair communication cable. It works well over existing communication cables or computer network spare pairs. A highly balanced transmitter output assures that the system will not interfere with other network equipment.

Advanced receiver and transmitter electronics provide optimum video quality and complete immunity from ground loop, hum and noise. Both the transmitter and receiver provide adjustment for gain and frequency compensation allowing the system to be “fine-tuned” for the cable. These unique adjustments provide optimum performance over the entire operating range of the system and allow cable lengths to be estimated with a wide safety margin. The EX1120 receiver and transmitter units each require 24 VAC power. In multiple receiver and/or transmitter applications a common supply can be used for the system.

EX1120 features include:

  • Active electronics compensate for frequency and level loss providing the highest quality video
  • High resolution color or monochrome video
  • Immunity to ground loop. Video and AC can be run in a common raceway, where code allows
  • Built-in protection from power surges, transients static or other electrical interference
  • Video can be run in the same cable with telephone and computer signals
  • Weather resistant design
  • Easy to install
Unit Transmitter
Size 1.8” H x 4.3” W x 2.4” D
Power Requirements 24 VAC @ 2 watts (2VA)
Input 1 Vpp composite video Monochrome or Color
Output Balanced low voltage current loop
Unit Receiver
Size 1.8” H x 4.3” W x 2.4” D
Power Requirements 24 VAC @ 2 watts (2VA)
Input Balanced low voltage current loop
Output 1 Vpp composite video Monochrome or Color
Common Mode Rejection 70dB
Unit System
Video Format PAL, SECAM, NTSC, RS170, CCIR (Color or B/W)
Operating Frequency 1 Hz to 10 MHz
Wire Size 26 to 18 AWG Unshielded Twisted Pair (UTP)
Wire DC Loop Resistance 51 Ohms/1,000 feet (max)
Wire Nominal Capacitance 17pF/ft
Wire Impedance 100 Ohms /- 20%
Wire UTP Category 2 or better
Temperature Range -40°C to 65°C
Humidity Range 0 to 98%, non-condensing
Enclosure Material Black, ABC flame retardant plastic
Shipping Weight 3 lbs (both units)


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Prices and specifications subject to change without notice.