Celebrating its 30th anniversary, the newly revised 15th edition of BICSI's flagship manual, the Telecommunications Distribution Methods Manual (TDMM), stands as the cornerstone of modern ICT design.

From updated information on single-pair Ethernet cabling, 28 AWG patch cords, SC/APC type optical fiber connectors, to fault managed power circuits and more, the TDMM reflects the latest trends in ICT technologies. These revisions ensure projects adhere to the most current standards and best practices.

Spanning 2100 pages across two volumes, the TDMM 15th edition is essential for existing BICSI Registered Communications Distribution Designers® (RCDD®) and those aspiring to become RCDDs. It serves as the foundation for the RCDD credential, the esteemed industry certification for ICT designers.