BICSI / RCDD
The professional body and credential for structured cabling and ICT design.
What is BICSI / RCDD?
BICSI publishes the TDMM (Telecommunications Distribution Methods Manual). RCDD (Registered Communications Distribution Designer) is the gold-standard credential. EIG PRO designs to BICSI standards. BICSI / RCDD should be read together with the project specifications, adopted codes, authority requirements, and referenced standards. A glossary summary explains the construction purpose but does not replace the current published document or a project-specific design review. Editions and local adoption can differ, so the design team should identify the controlling requirement before bidding or installation. For construction administration, document the requirement in drawings, specifications, submittals, RFIs, inspection records, and closeout material as appropriate. When two requirements appear to conflict, request written direction rather than selecting the less restrictive interpretation. That record helps the owner, designer, general contractor, and trade partners understand how BICSI / RCDD was applied on the actual project.
Frequently asked questions
Published references
Use the current project documents and adopted code. These links identify the standards owner, regulator, or manufacturer behind this article.
Related terms
Structured Cabling
The standardized cabling infrastructure (Cat6/6A, fiber) that supports networking, voice, video, and low-voltage devices.
TIA-568
The structured cabling standard defining cable types, connectors, and topology.
IDF (Intermediate Distribution Frame)
A secondary networking closet that houses switches and patch panels for a section of a building.
MDF (Main Distribution Frame)
The central networking room where the building's primary network equipment, ISP demarcs, and core switches live.
