1×17 Unbalanced PLC Splitter, 75/25, SC/APC, 3 m ABS Module

BWNF-PLC-ABS-1×17-75-25-SCAPC-3M

What does 75/25 mean on this 1×17 splitter?

On this build, 75/25 is shorthand for an unbalanced output map:

• one higher-power output is nominally 75%;
• sixteen lower-power outputs share the remaining 25%;
• each lower-power output is nominally 1.56%;
• the factory label expresses the ratio as 75/1.56*16.

This notation describes nominal optical-power allocation, not a guarantee that every measured output equals the mathematical percentage. Use the approved insertion-loss limits and the report for the delivered serial or lot when closing a path budget.

Verified configuration for the photographed build

TBC before publication: approved ABS material statement, dimensional drawing, port-label drawing, model-level optical acceptance limits, test method, compliance documents and image-use rights.

Port map and installation role

Do not rely on connector color or cable position alone to identify the higher-power output. Use the factory label, approved port map and continuity/optical checks before connection. If the enclosure or route schedule uses different port IDs, record the crosswalk in the installation and handover documents.

Serial-specific insertion-loss and PDL record

The following values are transcribed from the supplied final test report for S/N PLC1*172024095456. They include the tested terminated assembly shown in the supplied photographs. BWNFiber engineering must compare the transcription with the original report before the table is entered into the CMS.

Within this one report, the highest recorded tap insertion loss is 19.57 dB at 1310 nm and 19.58 dB at 1550 nm. Those observed maxima are not declared production limits. For design approval, use the maximum allowable value in the model-matched specification or purchase order, then add connector, splice, fiber and engineering margins for every route.

When this configuration fits a PON design

This product may fit a cascaded or distributed optical design when one path must retain a larger nominal share of optical power while sixteen lower-power paths serve local branches. The ratio alone does not prove suitability for GPON, XGS-PON or another system. Approval requires all of the following:

1. Assign the higher-power output and all tap outputs in the route schedule.
2. Calculate the loss of every path, including every splitter stage, connector pair, splice, fiber length and design margin.
3. Compare each path with the approved transmitter and receiver limits for the actual equipment class.
4. Confirm the 120×80×18 mm reported module envelope, cable exits, slack storage and bend control against the host enclosure drawing.
5. Define acceptance limits and the required report for the delivered serial or lot.

An equal 1×16 or 1×32 splitter is not a like-for-like substitute: it has no 75% output and creates a different loss distribution. A 1×17 70/30 or 80/20 unit is also a different optical configuration even if the connector and package look similar.

For broader family options, see the uneven PLC splitter family. For a quote-ready shortlist, use the fiber optic splitter product directory.

What to include in the RFQ

Send a controlled requirement instead of writing only “1×17 PLC splitter.” Include:

• model or approved equivalent reference;
• 1×17, 75/1.56×16 ratio string and output-role convention;
• connector family and polish on the input and all outputs;
• fiber grade, lead diameter and input/output lengths;
• host enclosure, available module space and cable-exit direction;
• maximum insertion loss, PDL, return loss, directivity and uniformity acceptance limits;
• required wavelengths and test method;
• port labels, dimensional drawing and report format;
• quantity, destination and requested delivery date;
• required compliance documents, if any.

Primary CTA: Send the topology, host-enclosure drawing, allowable loss for the higher-power and tap paths, connector plan, quantity and destination. Request a model-matched quotation, dimensional drawing and optical acceptance document before approving the order.