DIAMOND 4U Carrier System — Modular Chassis
The modular 19″ chassis system from DIAMOND: accommodates up to 12 pull-out Compact Modules (7TE) — up to 144 fibres in 4U. Scalable on demand, including accessories for full system integration.
Choosing the chassis: three points that outlast the population
The subrack outlives several generations of modules — it is chosen once and rarely touched again.
The frame first, then the fibres
Choose the chassis correctly and you expand later by adding modules. Choose it too small and you replace the whole level.
Modules change, the grid does not
The population follows demand and changes over the years. The grid stays — which is why expandability depends on it.
One connector system across the whole level
The same E-2000 connection level in every module: consistent handling, one spare-parts profile.
What the 4U Carrier System Is
The 4U Carrier is the host chassis for DIAMOND’s modular distribution philosophy. It provides:
- Twelve 7TE slot positions for Compact and Front Modules
- Mechanical mounting (no electronics) — purely passive infrastructure
- Cable management for incoming feeds and patch cables
- Front access for module insertion / extraction without rack-side disassembly
- Compatibility with both DIAMOND Compact Modules and F4P-built custom modules in 7TE format
Capacity
| Population | Slots | Maximum Fibres | Typical Use |
|---|---|---|---|
| Single Module | 1 of 12 | Up to 12 | Day-one minimum, expansion planned |
| Half-populated | 6 of 12 | Up to 72 | Mid-term roll-out, half-cycle for budget |
| Fully populated | 12 of 12 | Up to 144 | High-density data centre or carrier-grade hub |
The chassis is designed for staged expansion: start with 1-2 modules, add modules over years as demand grows. No reconfiguration of existing modules required when adding new ones.
Test report with every pre-terminated assembly
Every factory pre-terminated assembly comes with a measurement report. In a chassis that is populated further over the years, that is the only way to document the initial condition of each individual level later on.
Module Mix
The 4U Carrier accepts any combination of 7TE-format modules:
- DIAMOND Compact Modules (splice + patch, E-2000® CompactRJ)
- DIAMOND Front Modules (patch only, E-2000® APC or CompactRJ)
- Custom F4P modules built to your specification in 7TE format
Mixed populations are common: e.g. four CompactRJ patch modules at the bottom for active connections, four splice-and-patch modules in the middle for feeder fibres, and four empty slots reserved for expansion.
Quality Assurance
Modules ship with individual pigtail measurement and per-pigtail test certificate (end-face quality, tilt angle ≤ 0.4°, concentricity ≤ 0.25 μm). The carrier chassis itself is mechanical-only and not test-relevant — quality is documented at module level.
Four reasons to source the DIAMOND chassis through us
Authorised distribution partner of DIAMOND SA
Swiss precision from a single source — E-2000® with typ. ≤ 0.1 dB insertion loss and a spring-loaded laser protection shutter.
Mixed population in the same chassis
Splice, front and compact modules share the same grid — the level follows the task, not the catalogue.
Data sheet and part number for every version
Every available version is documented. The enquiry goes out with the part number, not with a description.
One connector system across the entire line
The same E-2000® connection level in every form factor: consistent handling, one spare-parts profile, no system breaks in the installed base.
Calculate and configure first, then enquire
Three tools with real part numbers — check the optical budget and put your configuration together live in 3D.
Attenuation budget calculator
Add up connectors, splices and fibre lengths and check the total attenuation against the budget — before the OTDR acceptance test measures it.
DIAMOND configurator (3D)
Configure Future and Fusion Box with E-2000 live — with a real part number for each configuration, ready for your enquiry.
Subrack configurator
Populate a 19″ subrack slot by slot with splice and front modules — including the bill of materials for your quotation.
Typical Deployment
- Data centre cabinets: Central distribution hub for a row or rack
- Telecom backbones: Service-friendly architecture for carrier-grade networks
- FTTH POPs: Modular expansion as subscriber count grows
- Industrial control rooms: When density and serviceability both matter
Datasheets for download
Everything on this page as a PDF — for tenders, planning and sharing within the project.
DIAMOND compact modules
Dimensions, configurations, order numbers and connection technology for the DIAMOND compact modules line.
19″ subracks
Dimensions, configurations, order numbers and connection technology for the 19″ subracks line.
Full catalogue
The complete range at a glance — splice boxes, modules, subracks, cable management and the DIAMOND product line.
Your project starts with an enquiry
Project pricing and volume discounts on request. Lead time depends on the project — you receive the binding date with the quotation.
Available Through Fiber Products
The same system technology, a different form factor and different fields of application.
Following the DIAMOND press release of 27 April 2026, Fiber Products GmbH is the central supplier for DIAMOND’s 19″ enclosure technology including the 4U Carrier System. DIAMOND continues to manufacture all connector components in Losone; Fiber Products handles DACH supply, system configuration and F4P-built custom modules.
- 4U Carrier chassis
- Compatible Compact and Front Modules
- F4P-built custom 7TE modules — Manufacturer warranty
- German logistics with fast DACH delivery
- System configuration advice via our request form
Design your Carrier System deployment
Send us your fibre count and growth plan — we return a configured chassis + module quote with article numbers.