BWN-TK-4X12-OM4-VIO-{POL}-{JKT}-{LEN}-L{03|05} + configuration options
48-Fiber 4×12 MPO OM4 Trunk Cable
The BWNFiber 48-fiber 4×12 MPO OM4 trunk cable terminates four MPO-12 PC female connectors on each end of a violet bundled jacket, giving high-density OM4 backbones 48 live fibers per assembly. It links cassette and panel plants across MDA, HDA and EDA zones without field termination.

Product Overview
The BWNFiber 48-fiber 4×12 MPO OM4 trunk cable terminates four MPO-12 PC female connectors on each end of a violet bundled jacket, giving high-density OM4 backbones 48 live fibers per assembly. It links cassette and panel plants across MDA, HDA and EDA zones without field termination.
This is a 4×12 assembly, not a single MPO-48 ferrule and not an 8-fiber SR4 jumper. Each end lands on four standard MPO-12 ports, so the trunk drops straight into Base-12 cassette ecosystems. Overall length runs 5-100 m with 0.3 m or 0.5 m end legs, and pulling eyes are available for long conduit routes.
Key Features
- Four MPO-12/PC female connectors on each end (4×12 bundle map)
- 48 live fibers, OM4 50/125 μm multimode
- Violet bundled jacket, 9.5 mm typical OD
- Type A, Type B or Type C polarity built to the site drawing
- 0.3 m or 0.5 m end legs at each bundled end
- LSZH, OFNP and OFNR jacket options; pulling eye on request
- 100% factory-terminated and optically tested before shipment
Technical Specifications
| Item | Specification |
|---|---|
| Product family | MPO Trunk Cable |
| Bundle map | 4×12 MPO-12, four connectors per end |
| Active fibers | 48 |
| Fiber type | OM4 multimode, 50/125 μm |
| Jacket color | Violet |
| Polish | PC |
| Gender | Female (F), all ends |
| Polarity | Type A / Type B / Type C, per order |
| Overall length | 5-100 m standard set; custom on request |
| End-leg length | 0.3 m or 0.5 m |
| Typical bundled OD | 9.5 mm |
| Standards | TIA/EIA-568.3-D, EIA/TIA 604-5, IEC 61754-7, IEC 61753-1, GR-1435-CORE, RoHS |
Final insertion loss and return loss limits follow the BWNFiber test specification for the selected loss grade. Test method reference: IEC 61300-3-4.
Selection Guidance
- Polarity is not field-switchable. Choose Type A, Type B or Type C from the site drawing before ordering.
- Female (unpinned) ends mate with pinned cassette and panel ports; male (pinned) builds are quoted on request.
- State the end-leg length (0.3 m or 0.5 m) on the PO. It does not replace overall length.
- Jacket by space: OFNP for plenum, OFNR for riser shafts, LSZH for enclosed or public areas.
- Add a pulling eye for conduit routes and longer pulls; note it at inquiry.
- This page is the 4×12 OM4 build. For 2×24 (two MPO-24 per end) or OM3/OS2 versions, see the related products below.
Applications
- MDA-HDA and HDA-EDA OM4 cassette or panel backbones
- High-density 48-fiber permanent links landing on four MPO-12 ports per end
- Base-12 structured cabling plants that mix duplex and parallel-optics channels
- Pre-terminated data center builds that need factory test records at handover
Order Guide
This SKU is built to the ordered polarity and is not polarity-switchable in the field. Select the polarity from the site drawing, then overall length and jacket. End-leg length (0.3 m or 0.5 m) is stated separately on the PO.
| Configuration | Part Number | Description |
|---|---|---|
| Type A | BWN-TK-4X12-OM4-VIO-A-{JKT}-{LEN}-L{03|05} | 4×12 MPO/PC (F) to 4×12 MPO/PC (F) trunk, 48F OM4, violet |
| Type B | BWN-TK-4X12-OM4-VIO-B-{JKT}-{LEN}-L{03|05} | 4×12 MPO/PC (F) to 4×12 MPO/PC (F) trunk, 48F OM4, violet |
| Type C | BWN-TK-4X12-OM4-VIO-C-{JKT}-{LEN}-L{03|05} | 4×12 MPO/PC (F) to 4×12 MPO/PC (F) trunk, 48F OM4, violet |
Standard lengths: 5, 7, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 90 and 100 m, in LSZH, OFNP or OFNR. Custom lengths between or beyond these steps, and pulling eyes, are quoted on the drawing.
Why Source from BWNFiber
BWNFiber factory-terminates and inspects every MPO end before shipment, records polarity per order, and can attach IL/RL test reports for project handover. Catalog jackets cover LSZH, OFNP and OFNR; PVC, TPU and PE are quoted on project orders, together with OEM printing and labeling. The 4×12 bundle map and live-fiber count are written into the product name, so the BOM stays unambiguous at receiving. Send the map, fiber type, polarity, jacket, overall length and end-leg length, and BWNFiber returns a build sheet before production.
View the complete MPO Trunk Cable series for related patch cord, armored, breakout and conversion configurations.
Need a Configuration Review or Sample?
Share the fiber count, connector map, polarity, jacket, overall length and quantity for a project-specific review.
Frequently Asked Questions
Is this an MPO-48 cable?
No. It carries four MPO-12 connectors on each end with 48 live fibers. There is no single 48-fiber ferrule in this assembly.
What is the difference between 4×12 and 2×24?
4×12 uses four MPO-12 connectors per end; 2×24 uses two MPO-24 connectors per end. This page is the 4×12 build. Request the 2×24 drawing if your plant is Base-24.
Which polarity should I order?
Polarity follows your channel plan. Type A, Type B and Type C are all built to order; confirm the cassette or panel method on the site drawing before selecting.
What does the 0.3 m / 0.5 m length mean?
That is the short end-leg (subunit) length at each bundled end, where the four MPO-12 connectors fan out from the round jacket. It is separate from the overall 5-100 m length.
Can I get custom lengths and pulling eyes?
Yes. Lengths between or beyond the 5-100 m steps and pulling eyes for conduit routes are quoted on the drawing.
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