BWN-TK-M8-OM4-EV-{POL}-{JKT}-{LEN} + configuration options
MPO 8 Fiber OM4 Trunk Cable
The BWNFiber 8-fiber MPO OM4 trunk cable terminates one MPO-8 PC female connector on each end of an Erika Violet jacket. It is the Base-8 trunk for parallel-optics plants — eight live fibers, not twelve, mapped straight into 8-fiber channel plans.

Product Overview
The BWNFiber 8-fiber MPO OM4 trunk cable terminates one MPO-8 PC female connector on each end of an Erika Violet jacket. It is the Base-8 trunk for parallel-optics plants — eight live fibers, not twelve, mapped straight into 8-fiber channel plans.
Fiber count is the whole point of this page: exactly 8 live fibers on an MPO-8 interface. Erika Violet identifies the OM4 fiber grade and does not create a second 12-fiber OM4 page. For 40G/100G SR4-class channels, the matching build is Type B with female ends mating pinned QSFP-class modules — confirm polarity and gender on the site drawing before applying this trunk to transceiver links. Overall length runs 5-100 m.
Key Features
- One MPO-8/PC female connector on each end
- 8 live fibers, OM4 50/125 μm multimode — true Base-8 map
- Erika Violet jacket per OM4 identification practice
- Type A, Type B or Type C polarity built to the site drawing
- Suited to 40G/100G SR4-class channels once Type B and female-to-pinned mating are confirmed
- 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-8 to MPO-8 |
| Active fibers | 8 |
| Fiber type | OM4 multimode, 50/125 μm |
| Jacket color | Erika Violet |
| Polish | PC |
| Gender | Female (F), both ends |
| Polarity | Type A / Type B / Type C, per order — Type B required for SR4-class channels |
| 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
- Polarity is not field-switchable. Choose Type A, Type B or Type C from the site drawing before ordering.
- For SR4-class transceiver channels: order Type B and confirm the female ends mate pinned module interfaces before applying this trunk.
- Female (unpinned) ends mate with pinned cassette, panel and module ports; male (pinned) builds are quoted on request.
- Erika Violet equals OM4 here — for the 12-fiber violet trunk, see the 12F OM4 page instead.
- 400G/800G SR8 channels need MPO-16 interfaces, which are outside this page.
- Jacket by space: OFNP for plenum, OFNR for riser shafts, LSZH for enclosed or public areas.
Applications
- Base-8 parallel-optics trunks in OM4 plants
- 40G/100G SR4-class channels after polarity and gender confirmation
- 8-fiber cassette and panel interconnect
- Migration paths from duplex to parallel-optics channel plans
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.
| Configuration | Part Number | Description |
|---|---|---|
| Type A | BWN-TK-M8-OM4-EV-A-{JKT}-{LEN} | MPO-8/PC (F) to MPO-8/PC (F) trunk, 8F OM4, Erika Violet |
| Type B | BWN-TK-M8-OM4-EV-B-{JKT}-{LEN} | MPO-8/PC (F) to MPO-8/PC (F) trunk, 8F OM4, Erika Violet — SR4-class build when female-to-pinned mating is confirmed |
| Type C | BWN-TK-M8-OM4-EV-C-{JKT}-{LEN} | MPO-8/PC (F) to MPO-8/PC (F) trunk, 8F OM4, Erika 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 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 8-fiber map is written into the product name and test records, keeping Base-8 stock separate from 12-fiber OM4 at receiving. Send the interface, fiber type, polarity, 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
Why 8 fibers and not 12?
This is the Base-8 build: exactly eight live fibers on an MPO-8 interface, mapped to 8-fiber channel plans. Older listings that said 12 fibers on this SKU were incorrect.
Can I use this for 40G/100G SR4 links?
Yes, once the build matches the channel: Type B polarity and female ends mating pinned QSFP-class module interfaces. Confirm both on the site drawing before applying it to transceiver links.
Is Erika Violet a different fiber from violet OM4?
No. Erika Violet identifies the same OM4 jacket color family. The difference on this page is the 8-fiber count, not the color.
Is this the same as the 12F OM4 trunk?
No. The 12F OM4 trunk carries twelve live fibers on MPO-12 connectors; this page carries eight on MPO-8.
Can I use it for 400G/800G SR8?
No. SR8-class channels use MPO-16 interfaces, which are outside this 8-fiber page.
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