Custom single-mode fiber optic fan-out cable assembly with multiple connectorized branches

Fiber Optic Cable · Custom SM/MM Assembly

Custom Fiber Optic Fan-Out & Branch Cable Assembly

Q: How is this different from a bundle or ribbon assembly?

This page focuses on individually routed connectorized branches and a controlled port map.

Q: Can it use single-mode or multimode fiber?

Reference designs support either fiber family; mixed-fiber assemblies require channel identification and equipment compatibility review.

Q: Are connectors included?

The assembly may be connectorized at one or both ends.

Q: What should the branch drawing show?

Show trunk and branch lengths, breakout locations, protection, fiber order, port labels, connectors and tolerances.

Quick answer: A custom fiber optic fan-out cable assembly routes multiple single-mode or multimode fibers through one main cable and separates them into identifiable connectorized branches. Specify fiber type, count, trunk and branch lengths, port mapping, connectors, polish and optical acceptance limits.

This construction is intended for ordinary SM/MM equipment interconnection, termination boxes, control systems and indoor network links. It is distinct from flat ribbon assemblies and polarization-maintaining breakout cables.

Product Features

Project-specific branch layoutDefine the trunk length, breakout position, individual branch lengths, branch protection and end-to-end port map.

Single-mode or multimode fibersReference options include 9/125 µm single-mode and 50/125 µm or 62.5/125 µm multimode fibers.

Single-ended or double-endedOne end may remain splice-ready or both ends may be connectorized according to the installation drawing.

Measurable optical acceptanceState polish, test wavelength, insertion-loss and return-loss limits, channel identification and required test records.

Fan-Out, Branch Cable or Pigtail?

Fan-out assemblyChoose when multiple fibers share a trunk and then separate into protected, labeled connector leads.

Branch cable assemblyChoose when defined breakout points or longer individually routed branches must follow an equipment layout.

PigtailChoose when the connectorized end terminates equipment and the bare end will be fusion-spliced.

Ribbon assemblyChoose when fibers must remain in a flat, fixed order for a compatible array or mass-fusion workflow.

Compare grouped and ribbon constructions on the Fiber Optic Bundle & Ribbon Cable Assembly page. For polarization-sensitive channels, review the PM Fiber Breakout Cable.

Reference Specifications

Branch optical cable connector module – catalog reference values
Characteristic	Unit	Single-mode	Multimode
Fiber / core diameter	µm	9/125	50/125 or 62.5/125
Insertion loss	dB	PC <0.3; APC <0.2	PC <0.3
Return loss	dB	PC >45; APC >60	PC >25
Insertion/withdrawal durability	cycles	1,000 cycles; loss change <0.3 dB
Reference temperature range	°C	-40 to +80
Reference tensile strength	kgf	15

Reference catalog values only. Final fiber grade, connector, polishing, test wavelength, construction, length and acceptance limits must be confirmed in the approved quotation and drawing.

Reference Product Constructions

Yellow single-mode fan-out cable assembly with multiple connectorized branches

Single-mode fan-out referenceConnector family, branch count, color coding and dimensions are project-specific.

Orange multimode branch cable assembly with connectorized fan-out leads

Multimode branch referenceFinal fiber grade, termination and branch layout follow the approved drawing.

Applications

Fiber termination boxes and equipment racks

Power, telecom and broadcast equipment rooms

Industrial control equipment interconnection

Indoor LAN and building optical links

Test and measurement channel routing

Custom multi-port optical equipment

Termination Drawing & RFQ Checklist

A dimensioned routing and port-map drawing is recommended whenever channel order matters.

Fiber type, grade, count and operating wavelength
Connector and PC, UPC or APC polish at each end
Total trunk length, breakout location, branch lengths and tolerances
Branch tube or jacket diameter, bend radius and installation environment
Color sequence, labels and end-to-end port mapping
Insertion-loss and return-loss limits with test wavelength and method
Quantity, packaging, drawing approval and requested test report

Frequently Asked Questions

How is this different from a bundle or ribbon assembly?

This page focuses on individually routed connectorized branches and a controlled port map. A bundle groups fibers, while ribbon keeps fibers in a flat fixed order.

Can it use single-mode or multimode fiber?

Reference designs support either fiber family. Mixed-fiber assemblies require unambiguous channel identification and equipment compatibility review.

Are connectors included?

The assembly may be connectorized at one or both ends. State the connector family and polish for every port; a bare or splice-ready end can also be reviewed.

What should the branch drawing show?

Show trunk and branch lengths, breakout locations, branch protection, fiber order, port labels, connectors, tolerances and routing constraints.

Request a Custom Fan-Out Assembly Quote

Send the fiber count, connector map, trunk and branch lengths, polishing, loss limits, environment, quantity and a routing drawing for technical review.

Request Technical Review