DIRECT ANSWER / 01
Confirm equipment and mating parts before freezing cable configuration
PRIZM® LightTurn® is a miniature detachable fibre connector solution for board-mounted parallel-optics modules. US Conec documentation describes it with a specific Mechanical Optical Interface (MOI). It should not be treated as a generic patch interface interchangeable with an ordinary MPO equipment port; the board-side module and MOI define the mating design.
Freeze the board-side MOI/connector references and quantity, fibre count/type, board orientation and lane map, remote-end interface, cable route and mechanical envelope. Request mutually approved drawings and a sample plan. This guide does not assert that ARRANEX holds a third-party interface license or manufacturing qualification.
SELECTION MATRIX / 02
Purchasing decision matrix
| Item | Identify | Correct action | Avoid |
|---|---|---|---|
| Board-side interface | LightTurn connector, exact MOI and board mechanical/optical design | Obtain exact mating interface, orientation and revision from the OEM | Assuming compatibility from the “LightTurn” name alone |
| Channels and fibre | MOI channel count, fibre construction/type, Tx/Rx direction and map | Mark port numbers, viewing direction and lane mapping on the drawing | Inferring the channel definition from connector appearance |
| Remote end and routing | Remote connector, length/breakouts, bend envelope and strain relief | Review actual in-chassis routing and service actions | Evaluating board and external links separately |
| Validation and introduction | Sample quantity, equipment mating, optical test and revision control | Get system-design approval for drawing, test conditions and samples | Freezing production design before mating validation |
RFQ INPUTS / 03
Minimum inputs a supplier can verify
| Category | Required input or confirmation |
|---|---|
| Interface confirmation | Board-side MOI/LightTurn references, revision, mating relationship and OEM drawing |
| Lane definition | Fibre count/type, Tx/Rx direction, lane IDs and remote-end map |
| Mechanical envelope | Orientation, card/chassis clearance, cable exit, bend and strain-relief requirements |
| Sample validation | Approved drawing, test wavelength/method, acceptance fields, samples and change-control plan |
BUYER FAQ / 04
Purchasing FAQ
Can PRIZM LightTurn mate with an ordinary MPO plug?
Do not assume so. US Conec describes LightTurn as a board-side interface solution used with its MOI; confirm the exact mating interface and system design.
Why validate a sample first?
Board optical/mechanical interfaces, insertion orientation and cable space are system-level constraints. Samples help validate mating, installation path and project test conditions before design freeze.
Can the LightTurn catalogue define my assembly specification?
No. The equipment/OEM MOI, lane map, fibre and remote interface determine the final configuration and must be approved on project drawings.
What inputs should a supplier receive?
Board connector/MOI references or drawings, both-end lane map, fibre and routing constraints, test method, sample quantity and target milestones.
SOURCES / 05
Sources and applicability
Sources checked: 2026-09-24. This guide clarifies purchasing fields; it does not replace current equipment data sheets, full standards or the approved project drawing.