PreCONNECT® SEDECIM FO cabling system

PreCONNECT® SEDECIM - Optimal cabling for parallel optical data transmission via 400GBASE-SR8

MTP® cabling system perfectly fitting for SR8 applications

PreCONNECT® OCTO is a comprehensive system for structured parallel optical data transmission cabling. By using 16 fibers for each MTP® connection, Rosenberger OSI has created a high-performance, efficient multifiber cabling product that optimizes results by reducing both costs and attenuation.

System consists of:

  • Factory assembled fiber optic breakout cables, FRNC-LSZH indoor cables, up to 9 x 16 = 144 fibers with connector systems MTP® 16 fiber per MTP® channel
  • Port-breakout with MTP®-LC and MTP®-MDC harnesses and MTP® module cassettes with LC and MDC front
  • Two 19“ panel systems SMAP-G2 HD and SMAP-G2 UHD selectable
  • Suitable patchcords
  • Useful accessories
  • Patch location rack


  • For all who already have on minimum one cabling side MPO based parallel optics SR8 transceivers
  • Cost and attenuation optimized for SR8 applications

Fields of application:

MTP® (MPO) based Data Center cabling with 16 fibers per MTP® channel

Optimized for parallel optics applications:

  • 400GBASE-SR8
  • Easy migration to 40/100/200 GBASE-SR4

Further information about the different applications can be found in the product information.

Do you have any questions about our systems? We will be happy to help you.

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  • MTP® cabling system perfectly fitting for SR8 applications
  • Fast and safe installation trough factory assembled plug & play systematic
  • Highest quality and cost-efficiency through factory assembling
  • PreCONNECT® cabling systems consist of perfectly harmonized modular single components

Properties of individual system components

PreCONNECT® square-interface and installation protection:

Rosenberger OSI brought already 1991 high fibercount factory assembled Fiber Optic Trunk cables to the market. PreCONNECT® STANDARD was the first in Europe developed and manufactured, high fiber count and modular „plug-and-play“ FO cabling system and already 1997 we have been the first manufacturer of MTP® cabling systems in Europe.
PreCONNECT® SEDECIM Breakout-Trunks have PreCONNECT® square-interfaces on both sides which can be tool-less hooked into the 19” Panel Systems for tensile and torsion resistant fixing of the Trunks.
The Trunk connector legs are fitting for the 19“ panel systems and are packaged in non-pull resistant dust-proof foil tubes. On request with tensile strength, crush resistant, kink and torsion resistant, installation tubes deliverable.

Connector types:

  • To reach reliable high return loss in application, the MTP® 16 fiber multimode connectors of PreCONNECT® SEDECIM are 8° APC polished and have a white boot as color code. MTP® 16 fiber multimode connectors have an off-center key.
  • SEDECIM breakout trunks: MTP® 16 fiber, 8° APC, male
  • SEDECIM patchcords, multijumpers, harnesses and module cassettes: MTP® 16 fiber, 8° APC, female

Adapter types:

  • MTP® 16 MM 8° APC: Off-center key, TIA type A “opposed key” „1 to 1“, white


  • SEDECIM breakout trunks: TIA Method B „1 to 16“
  • SEDECIM patchcords, harnesses and module cassettes: see pages of the products

Cable types:

  • SEDECIM breakout trunks: I-F(ZN)HH n x 16 fibers
  • SEDECIM patchcords and harnesses I-F(ZN)H and I-F(ZN)H(ZN)H 16 fibers
  • Cable data, see separate cable data sheets

Fiber types:

  • Multimode OM4 bend-insensitive
  • Fiber data, see separate fiber data sheets

Length definition:

Order-length = length between the connectors of the longest legs at both sides, not between the PreCONNECT® square-interfaces.

Delivery form:

Dependent on the length as cable ring or on cardboard or wooden drum, 100% IL factory measured with measurement protocol, product label with serial number on both sides.


Patch Location Rack:


  • High-density data center infrastructures
  • For the construction of ultra-high-density data center patch locations


  • Innovative, restriction-free cable management system
  • Rack pillars with integrated cable managers to prevent interference with cable routing
  • The covers of the cable managers fold in both directions and are completely removable
  • Individually selectable feedthroughs in the sides and rear walls of the large-volume cable channel for simple vertical and horizontal cable routing
  • Professional routing of large cable volumes from the patchfields and storage of cable overlengths in the vertical cable managers
  • Particularly suitable for fiber optic cables thanks to the use of cable clips (L-fingers) and finger slots:
    - The rounded L-fingers ensure that the cables are extremely well protected against bending and kinking even when subject to strain.
    - The L-fingers do not have any sharp edges and are extremely strong and resistant to breakage. 
  • Because there is plenty of space for them in the large finger slots, the cables are neither squeezed nor kinked. 
  • The L-fingers retain the cables in the finger slots whenever you need to work with the covers folded back or removed.

Dimensions (H x L x W): 213 (46 HU) x 90 x 90 cm
Material and color: Powder-coated steel, RAL 9005 (black)
Optional: 19” Intermediate Rack for the construction of rack rows with uneven numbers of racks on request.

Product Overview and Resources