Overview

The TR515 is designed for operation over Category twisted pair cable and requires the use of a transmitter unit. The unit works equally well over existing communication and computer networks or newly installed cable. Advanced receive electronics provide immunity from the ground loop, hum, and noise to produce maximum video quality with virtually no loss. A dip switch on the unit provides precise gain and frequency compensation adjustment, allowing the system to be “fine-tuned” for any cable. This digital adjustment technology provides easy adjustment for optimum performance over the entire operating range. The wide dynamic adjustment also allows cable length to be estimated with a wide safety margin when bidding CCTV twisted pair transmission jobs.

Wire and Cable Recommendations

We recommend using unshielded twisted pair wiring. The systems 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 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.