Fiber to the Building (FTTB)
FTTB delivers high-speed fiber to the building — terminating at the main equipment room, MDF, or telecom closet, where it connects to the building's existing internal distribution network. iFiber Optix supplies the hardware for every layer of that architecture, with particular depth in the building entry termination, MDF/IDF enclosures, and high-density distribution panels that serve the building as a single premises.
FTTB Network Architecture
Select any segment in the diagram to see the iFiber Optix products deployed at that layer — from OSP feeder through building MDF and IDF distribution.
Select any segment in the diagram to see the iFiber Optix products deployed at that layer of the FTTB architecture.
Select Your Building Type
FTTB serves a range of building types — each with different fiber counts, entry point hardware, and MDF/IDF distribution requirements. Select your building type below.
Commercial Building Entry & MDF
Office buildings receive a high-count fiber feed at the building entry point, terminated in the Main Distribution Frame room. Internal distribution to floors and IDF closets uses the building's structured cabling infrastructure — fiber terminates here, copper or existing cabling carries it to individual offices.
- Fiber count: 12–144 fibers at building entry
- Entry termination: High-density rack panel in MDF room
- IDF distribution: MTP trunks from MDF to each floor IDF
- Hardware: HD rack mount panels + MTP cassettes
Mixed Retail / Office / Residential
Mixed-use buildings combine commercial ground-floor tenants with upper-floor residential or office units — requiring separate fiber feeds or sub-distribution to each tenant type with different bandwidth and connector requirements per zone.
- Architecture: Single entry, sub-distributed per zone
- Commercial zones: Higher fiber count, structured patch panel
- Residential zones: Single fiber per unit via riser splicing
- Hardware: Wall mount enclosures per floor + rack in MDF
Multi-Building Campus Network
Campus and industrial FTTB deployments run high-count fiber between multiple buildings — each receiving its own building entry termination, with MTP trunk runs between the central MDF and each building's IDF. The OSP feeder plant is more extensive and may include both duct and aerial runs.
- Topology: Star from central MDF to each building IDF
- Feeder: High-count OSP cable per building route
- Entry: Building entry termination at each structure
- Trunks: MTP trunk cables between MDF and IDF
Outside Plant Feeder Cable
The OSP feeder delivering fiber to the building entry — high-count singlemode cable engineered for long-term duct and aerial service.
Corning ALTOS® Loose Tube, Gel-Free Cable
The FTTB feeder backbone — gel-free waterblocking eliminates splice closure cleanup at every mid-span access point, and SZ-stranded loose tube design allows quick buffer tube access at building entry vaults and campus junction points.
Enclosures & Distribution Hardware
FTTB requires high-density enclosure hardware at the building MDF and each IDF — organizing the high fiber count that arrives at the building into structured, manageable distribution.
CCH Housings & Panels
1U–4U Corning LANscape® compatible rack enclosures accepting CCH panels, cassettes, and splice modules for MDF and building entry fiber management.
Wall Mount Enclosures
Compact wall-mount fiber enclosures for floor telecom closets and building entry spaces — LGX wall mount, NEMA wall/pole patch & splice, and mini wall mount options.
HD Rack Mount — P & O Series
Ultra-high-density 1RU–4RU rack panels supporting up to 576 LC DX ports in 4RU with MTP cassette modules — for high-fiber-count building MDF rooms.
MTP Cassettes
Pre-terminated singlemode and multimode MTP cassette modules for MDF-to-IDF trunk distribution and per-floor LC port breakout.
How FTTB Differs from FTTH & FTTP
- Fiber reaches each individual unit
- 1–12 fibers per unit / premises
- ONT or structured panel at each unit
- Drop cables to every subscriber
- Distributed termination hardware
- Fiber terminates at the building MDF only
- High fiber count at single building entry point
- Existing in-building cabling handles last 100m
- MTP trunks replace per-unit drop cables
- Centralized termination at MDF / IDF hardware