Freestanding 19” cabinets or racks are ideal for high-density data center environments, allowing for higher cabling and equipment density while providing excellent accessibility and efficiency, ideal for keeping all your computer equipment organized and/or telecommunications. . With over 20 million enclosures deployed and more than 50 years of innovation, Charles is the communications industry's go-to source for enclosed solutions. Combining a consultative approach and engaged support, we guide you through protecting your critical network infrastructure. With integrated. . The checklist that follows (pp. 3 – 9) can be used for quality control of: 1. Telecom Room (TR) design during the Design Review phase 2. The 75 ohm to 120 ohm panel balun presents a ready solution to this termination mismatch by allowing a bi-directional conversion of coaxial cable (75 ohms) to. . Telecommunications equipment is subject to stringent design requirements calling for enclosures that meet the same demanding standards. Some of these small housings provide many of the features found within full-sized buildings, including redundant air conditioning and emergency power systems.