Head-End Room
The central equipment room housing core network, video recording, access-control, and AV head-end gear for a building.
What is Head-End Room?
The head-end room is where the brains of every low-voltage system live. It usually coincides with the MDF and contains the core switch, the NVR or VMS server, access-control panels and power supplies, DAS head-end equipment, AV matrix or distribution gear, and the demarcation point where the ISP hands off service. Head-end rooms need dedicated cooling, conditioned and often UPS-backed power, plywood backboard, proper grounding, and enough floor clearance to service racks from front and back. Undersized head-end rooms are one of the most common coordination failures on a project, because the architect sizes them early and the systems grow late.
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.
Where EIG PRO uses this
Related terms
DAS / BDA (Distributed Antenna / Bidirectional Amplifier)
In-building cellular and public-safety radio amplification systems.
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.
NVR (Network Video Recorder)
An on-prem or cloud server that records and stores video from IP cameras.
VMS (Video Management System)
The software that records, displays, and manages video from a network of IP cameras.
