Overview

The 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 high 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 the ground loop, hum, and noise. Both the transmitter and receiver provide adjustment for gain and frequency compensations 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 receiver and transmitter units each require 24 VAC power. In multiple receivers and/or transmitter applications a common supply can be used for the system.

Wire and Cable Recommendations

we recommend using unshielded twisted pair wiring. The system will operate over wire 26 to 18 AWG but are optimized for 24 AWG. Category cables may be used. Individually shielded pairs should be avoided, as they drastically reduce the operating range of the systems. Multipair 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 the video may be routed through telephone, computer, control signals, power voltages, and other signals. While the video may be routed through telephone punch-down terminals, any bridge tabs also called T-taps and any resistive, capacitive or inductive devices MUST BE removed from the pair.