BWN-TK-M12-OM4-VIO-B-{JKT}-{LEN} + configuration options
MPO 12 Fiber OM4 Type B Trunk Cable
The BWNFiber 12-fiber MPO OM4 trunk cable terminates one MPO-12 PC female connector on each end of a 3.0 mm violet jacket, built as Type B. It is the workhorse Base-12 trunk for OM4 plants that have standardized on Type B parallel-optics channels.

Product Overview
The BWNFiber 12-fiber MPO OM4 trunk cable terminates one MPO-12 PC female connector on each end of a 3.0 mm violet jacket, built as Type B. It is the workhorse Base-12 trunk for OM4 plants that have standardized on Type B parallel-optics channels.
Polarity is fixed at Type B in this official build, which keeps BOMs unambiguous on projects where every cassette and panel already follows the Type B method. If your plant runs Type A or Type C, request that build on the drawing instead of forcing this SKU. Violet and Erika Violet (magenta) describe the same OM4 jacket family here; the 8-fiber OM4 trunk is a separate page. Overall length runs 5-100 m.
Key Features
- One MPO-12/PC female connector on each end
- 12 live fibers, OM4 50/125 μm multimode
- Type B polarity fixed in the official build — no BOM ambiguity
- 3.0 mm round violet jacket (Erika Violet / magenta equivalent)
- 5-100 m standard length set, custom on request
- LSZH, OFNP and OFNR jacket options
- 100% factory-terminated and optically tested before shipment
Technical Specifications
| Item | Specification |
|---|---|
| Product family | MPO Trunk Cable |
| Interface | MPO-12 to MPO-12 |
| Active fibers | 12 |
| Fiber type | OM4 multimode, 50/125 μm |
| Jacket color | Violet (Erika Violet / magenta equivalent) |
| Polish | PC |
| Gender | Female (F), both ends |
| Polarity | Type B (fixed in this build) |
| Cable OD | 3.0 mm |
| Overall length | 5-100 m standard set; custom on request |
| 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
- Order this page when the plant runs the Type B method end to end. Type A and Type C are different builds — request them on the drawing.
- Female (unpinned) ends mate with pinned cassette and panel ports; male (pinned) builds are quoted on request.
- Violet, Erika Violet and magenta identify the same OM4 jacket family on this page; the color does not change the fiber grade.
- For Base-8 SR4-class channels, see the 8-fiber OM4 trunk (Type B confirmed) instead of this 12-fiber build.
- Jacket by space: OFNP for plenum, OFNR for riser shafts, LSZH for enclosed or public areas.
Applications
- Type B parallel-optics trunks and cassette interconnect inside the hall
- Base-12 OM4 structured cabling on the Type B method
- Panel-to-panel backbone links in high-density OM4 plants
- Pre-terminated replacements for field-polished OM4 trunks
Order Guide
Polarity is already fixed as Type B in this build — choose overall length and jacket. If the site plan calls for Type A or Type C, request that build on the drawing.
| Configuration | Part Number | Description |
|---|---|---|
| Type B / LSZH | BWN-TK-M12-OM4-VIO-B-LSZH-{LEN} | MPO-12/PC (F) to MPO-12/PC (F) trunk, 12F OM4, violet, Type B |
| Type B / OFNP | BWN-TK-M12-OM4-VIO-B-OFNP-{LEN} | MPO-12/PC (F) to MPO-12/PC (F) trunk, 12F OM4, violet, Type B |
| Type B / OFNR | BWN-TK-M12-OM4-VIO-B-OFNR-{LEN} | MPO-12/PC (F) to MPO-12/PC (F) trunk, 12F OM4, violet, Type B |
Standard lengths: 5, 7, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 90 and 100 m. Custom lengths between or beyond these steps 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. A fixed Type B official name keeps purchasing repeat-simple on standardized plants, and polarity records still travel with each order. Send the interface, fiber type, jacket and overall 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
Can I order Type A or Type C on this page?
This official build is Type B. Type A and Type C 12F OM4 trunks are different builds — state the method on the drawing and BWNFiber will quote them.
Is Erika Violet a different product?
No. Violet, Erika Violet and magenta describe the same OM4 jacket color family on this page. The 8-fiber Erika Violet trunk, however, is a separate SKU with 8 live fibers.
Is this an SR4 cable?
No. Twelve live fibers are not the 8-fiber SR4 map. For Base-8 channels, see the 8-fiber OM4 trunk.
Which ports does a female MPO mate with?
Female (unpinned) MPO ends mate with pinned ports, such as cassette and panel rear interfaces. Transceivers also present pinned MPO interfaces.
What lengths are listed?
5 m to 100 m in the standard set, plus custom lengths quoted on the drawing.
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