BICSI RCDD study guide
BICSI RCDD · Work through your exam, one topic at a time.
The Registered Communications Distribution Designer (RCDD) is a BICSI certification listed among BICSI's certification types. BICSI describes its certifications as validating expertise to deliver systems that perform, and states that it defines the standards, credentials, and training that ensure systems are designed, installed, and delivered to perform. The BICSI RCDD study guide has 6 sections and about 1,664 words.
01Design Basics
Design Basics is the vocabulary and logic layer of the RCDD exam: the concepts you use to justify every later decision. A candidate must be fluent in the hierarchy of standards and codes (codes are legally enforceable; standards are consensus best practice; guidelines are advisory), the meaning of shall versus should versus may , and the difference between a requirement and a recommendation .
322 words, about 2 min02Cabling Infrastructure
This domain tests your command of copper and fiber media, their performance categories, and the rules that govern installation. For twisted-pair copper , know the category progression and what each supports: Cat 5e, Cat 6, Cat 6A, and Cat 8 differ in bandwidth and, critically, in alien crosstalk and shielding behavior.
300 words, about 2 min03Telecommunications Spaces and Architecture
This domain covers the physical rooms and their relationships: the entrance facility (EF) , equipment room (ER) , telecommunications room (TR) , main distribution area (MDA) , horizontal distribution area (HDA) , zone distribution area (ZDA) , and equipment outlet (EO) . Understand the hierarchy and the distances that constrain it - for example, the total horizontal cabling distance and the limits that push you to add an HDA or TR.
296 words, about 1 min04Telecommunications Distribution Systems
Distribution systems are the pathways and cabling that connect spaces: horizontal (TR to outlet), backbone/riser (between TRs, ER, and EF), and campus distribution. Understand pathway types - conduit, cable tray, J-hooks, raceway, underfloor, ceiling - and when each is appropriate.
270 words, about 1 min05ICT Systems and Applications
This domain connects infrastructure to what runs on it. Candidates must understand applications and their demands: data networking (Ethernet speeds), wireless (Wi-Fi coverage/capacity, access point placement, PoE), voice/VoIP , video , building automation/ IoT , and security systems (CCTV, access control).
246 words, about 1 min06Project Management, Documentation, and Administration
This domain ties design to delivery and record-keeping. Understand project phases and deliverables, scope , schedule , budget , risk , and change management .
230 words, about 1 min