WhiteBox Networks

Fiber infrastructure · Planning path

Trace the path. Preserve every position.

Create a complete assembly and route record before choosing lengths or ordering variants.

WBN engineering 2 November 2026 Sources
  1. Identify Interfaces and route
  2. Map Every mating position
  3. Verify Assembly and installation
The physical overview and the exact strand map describe different parts of the same path.
In this guide

1. Name the media and endpoints

Record the optical interface at each end before selecting the passive assembly. Preserve the required fiber medium and grade, occupied connector positions, transmit/receive allocation and any supported breakout mode. Wavelength count, optical lane count and installed strand count are different quantities.

Use duplex, parallel and breakout paths to establish the topology. Record the construction as patch, trunk or breakout, then describe every panel, cassette, adapter and intermediate patch in the route.

Measure the installed route and service requirements separately from nominal cable length. For a breakout assembly, record the common leg length and any required per-leg differences with explicit units.

2. Resolve every connector and strand

For each mating pair, record connector type, polish, pinning and key orientation. State the viewing direction used to number positions; a drawing that changes viewpoint halfway through cannot establish a reliable map.

Use connector conventions and complete strand mapping. Trace each endpoint transmit position to its intended receive position through the assembled route. Preserve unused positions as well as populated ones.

  • Keep a physical overview for installation and a position map for wiring verification.
  • Check mating details at intermediate components, not only at the endpoint optics.
  • Record the source of each component mapping and leave unknown segments explicit.

3. Keep installation evidence separate

Record jacket material, required safety rating and documented assembly rating in separate fields. LSZH or PVC identifies a construction attribute; it cannot establish a missing installation listing. Consult the site requirements and the exact assembly documentation.

Read jacket material and safety rating. Retain the applicable handling, bend and routing instructions for the actual cable rather than importing a value from another construction.

After installation, preserve the inspection and cleaning record and the relevant path-loss or continuity measurements. Inspection, cleaning and verification separates the handling procedure from the measured result.

4. Deliver a usable path record

Complete the fiber path worksheet with both endpoint interfaces, all intermediate components, connector details and the full mapping. Include route dimensions, leg details, installation requirements and open questions.

  • The physical drawing and strand map should identify the same assembly revision.
  • The documented rating should satisfy the stated requirement, with evidence retained.
  • Any installation observation should identify the measured route and test context.

Export the editable record for review. A completed worksheet organizes the specification; it is not a released manufacturing drawing or an automatic compatibility result.

Sources and applicability

This path summarizes the existing fiber engineering guides. It does not release an assembly drawing, certify a cable installation or substitute for the applicable product documentation.

  1. Fiber-path references

    Physical strands, wavelength multiplexing and breakout scope.

  2. Connector and position conventions

    Mating interfaces, pins, keys, polish and viewing direction.

  3. Material and rating evidence

    Product-specific examples showing why material and listing remain separate.