Overview

The CHM22 is a unique unshielded twisted pair (UTP) transmission product designed to operate with TIA/EIA standards-based network cabling. The card plugs into and is powered through the CX453 modular card cage. The CHM22 is designed to accommodate four cameras.

The primary function of the CHM22 is to provide a means of interfacing copper backbone cables to horizontal cable runs and inserting voltage to the individual camera and/or P/T/Z over the horizontal run. In addition, CHM22 provides data distribution. Using a single standards complaint 4-pair UTP category 5 or better cable, video, data, and power can be sent up to 100 meters to a fixed P/T/Z camera.

Wire and Cable Recommendations

We recommend using unshielded twisted pair wiring. The system will operate over 26 to 18 AWG but they are optimized for 24 AWG. Category cables may be used. Individually shielded pairs should be avoided, as they drastically reduce the operating range of 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 punch-down block terminals, any bridge-taps, T-taps, and any resistive, capacitive, or inductive devices MUST BE removed from the pair.