Specify eight single-mode fiber paths from an MPO/APC female end to four LC/UPC uniboot duplex ends. This configuration is intended for projects that explicitly call for G.657.A2 fiber and compact paired LC terminations. Check the finished cable routing limits, connector drawing and branch schedule before requesting a quotation.
Product Overview
The MPO 8F OS2 G657A2 to LC uniboot breakout cable is a passive fiber assembly for routing an eight-fiber connection into four duplex destinations. The supplied configuration lists a yellow jacket, an unpinned MPO/APC end and four LC/UPC uniboot pairs. Each pair contains two optical paths; four uniboot housings do not mean four fibers.
Configuration status: The product identity and options below come from the supplied product brief. The production BOM, connector drawing and acceptance specification require approval: confirmation with BWNFiber. Use this page to prepare a configuration request; the approved quotation and drawing define the assembly supplied.
Browse the MPO breakout and harness cable range when the fiber count or branch connector has not yet been selected.
Key Features
- Eight specified OS2 single-mode paths with G.657.A2 fiber identified in the requested BOM.
- One MPO/APC female termination and four LC/UPC uniboot duplex terminations.
- Paired LC ends for panels designed to accept the selected uniboot housing and latch.
- A branch-by-branch destination schedule to define pairing and labels before purchase.
- Separate review of fiber bend performance, cable routing limits and connector boot clearance.
These describe the requested construction, not certified performance or stocked availability. Approval of this exact configuration is confirmation with BWNFiber.
Technical Specifications
| Item | Supplied configuration | Release evidence required |
|---|---|---|
| Product reference | Source item 35; not a manufacturer part number | Approved order code — confirmation with BWNFiber |
| Active fibers | 8 | Continuity and branch map |
| MPO end | MPO-8/APC, female/unpinned | Ferrule format, occupied positions, key orientation and mating drawing |
| LC ends | 4 × LC/UPC uniboot duplex | Housing dimensions, latch access and pair orientation |
| Fiber | OS2, G.657.A2; source uses 9/125 μm designation | Fiber supplier datasheet and BOM traceability |
| Jacket color | Yellow | Approved material and assembly drawing |
| Overall length requests | 1–50 m listed in source | Offered lengths, reference points and tolerances |
| Branch length requests | 30 / 45 / 60 cm listed in source | Equal or staggered dimensions; no default assumed |
| Jacket requests | LSZH, OFNP or OFNR listed in source | Construction-specific documentation; confirmation with BWNFiber |
| Polarity | Type A/B/C labels appear in source | Approved position-to-LC mapping; no field switching assumed |
| Optical acceptance | No verified limits provided for item 35 | MPO and LC insertion/return loss limits, wavelengths and methods |
| Mechanical/environmental limits | Not established by the brief | Cable diameter, bend radius, pull load and temperature limits |
G.657.A2 fiber and finished cable routing
ITU-T G.657 describes bending-loss-insensitive single-mode fiber and cable characteristics. Its uncabled-fiber bend tests do not establish the installation bend radius of this finished harness. The trunk, furcation body, branch cords and connector boots each need suitable clearance. Request the assembly’s static and installation limits before laying out a tight routing path.
The G.657.A2 designation also does not establish link speed, connector loss or transmission distance. Those depend on the complete optical channel and the selected equipment. For the broader fiber comparison, use the G.657.A1 and G.657.A2 guide.
Selection Guidance
Confirm the MPO and LC interfaces separately
“MPO-8” in the source identifies the eight-fiber configuration, but does not supply a ferrule position drawing. Obtain that drawing before assuming where the eight active fibers sit. Verify the pinned/unpinned mating pair, polish and key orientation at the MPO connection. The LC end must mate to the appropriate UPC interface. APC at one end of a cable and UPC at the other is distinct from mating unlike polish types at a single connection.
Record four duplex destinations
| Uniboot pair | Destination to complete | Drawing entry to approve |
|---|---|---|
| Pair 1 | Panel and port ___ | Two MPO positions → two LC positions ___ |
| Pair 2 | Panel and port ___ | Two MPO positions → two LC positions ___ |
| Pair 3 | Panel and port ___ | Two MPO positions → two LC positions ___ |
| Pair 4 | Panel and port ___ | Two MPO positions → two LC positions ___ |
This is a blank ordering worksheet, not a pinout. The network designer supplies the destination schedule; the manufacturer confirms the assembly map. A Type A, B or C label alone is insufficient to approve the complete channel. See MPO polarity and channel design for channel-level planning.
Compare the closest constructions
| Requested construction | Selection reason | Evidence needed before substitution |
|---|---|---|
| Item 35: G.657.A2 OS2 with uniboot pairs | BOM explicitly specifies A2 fiber and paired housings | A2 fiber traceability and finished assembly dimensions |
| Standard OS2 uniboot configuration, source item 44 | Project accepts a separately approved OS2 fiber specification | Actual fiber grade; OS2 alone does not identify G.652 or exclude G.657 |
| OS2 with conventional LC duplex ends, source item 36 | Panel or handling procedure calls for a different LC housing | Connector fit, boot and pair dimensions |
| OM3 uniboot configuration, source item 25 | A separately designed multimode channel | Optical mode, equipment and interface approval; not an OS2 substitute |
The source references above identify comparison drafts, not verified live product links. Select through the category range until their published URLs and independent configurations are confirmed.
Applications
| Project situation | Why this configuration may fit | Condition to verify |
|---|---|---|
| OS2 distribution to four duplex panel destinations | Keeps the four pairs identified at the LC end | Approved pinout, LC housing access and port spacing |
| Dense rack routing with an explicit A2 fiber requirement | Addresses the requested fiber class within the assembly BOM | Finished cable radius, furcation location and strain relief |
| Replacement of an existing uniboot harness | Supports comparison against a known part drawing | Match every interface, dimension, label and acceptance limit |
| Equipment breakout proposal | Provides separate optical paths to paired destinations | Exact modules, breakout mode, wavelengths, lane rate, mapping and link budget |
A passive harness does not convert data rate or optical wavelength. PSM4/DR4 names in the source are not compatibility approvals. Send both endpoint module part numbers and the switch configuration for an application-specific check.
Order Guide
- State that the request is for item 35: eight fibers, OS2 G.657.A2, MPO/APC female to four LC/UPC uniboot duplex ends.
- Attach the required MPO position map and four-pair destination schedule.
- Specify overall length and the measurement reference at each connector. Define all four branch lengths and whether they are equal or staggered.
- Include panel spacing, latch-access constraints and routing dimensions. Identify where the furcation body will sit.
- State the project jacket requirement and documentation needed in the destination market.
- Agree optical acceptance limits, report format, quantity and requested delivery date before placing the order.
Length and jacket requests
The source lists 1, 1.5, 2, 3, 5, 7, 10, 15, 20, 25, 30, 40 and 50 m, combined with three polarity labels and three jacket labels. These are 117 requested combinations, not 117 verified stock items. Availability, custom lengths, branch options and tolerances are confirmation with BWNFiber. The accompanying order schedule preserves every combination without repeating the full product name in each row.
Use metric dimensions on the approved drawing. For reference, 1 m ≈ 3.28 ft, 1.5 m ≈ 4.92 ft and 2 m ≈ 6.56 ft. Feet are approximate conversions, not alternative manufacturing dimensions.
LSZH describes smoke/halogen characteristics; it is not by itself evidence of a plenum or riser classification. Request documentation for the exact proposed jacket construction and installation requirement. Do not approve a substitution from the color or jacket label alone.
Why Source from BWNFiber
Use a documented configuration request to align the purchasing team, installer and assembly supplier. Ask BWNFiber to confirm the fiber BOM, connector drawings, branch map, dimensional tolerances and evidence supplied with the order. This keeps acceptance tied to the requested assembly rather than to a generic catalog description.
Quality control and test documentation
| Acceptance item | Document to request | What it resolves |
|---|---|---|
| Fiber identity | BOM and fiber supplier declaration | Whether item 35 actually uses G.657.A2 |
| Path identity | Eight-path continuity/polarity report | Pair routing and channel labels |
| Connector performance | Agreed MPO and LC loss limits with test conditions | Whether the assembly fits the optical budget |
| End-face condition | Inspection criteria and agreed record format | Cleanliness and interface condition |
| Mechanical fit | Dimensioned assembly drawing | Branch reach, boot clearance and routing limits |
| Batch identity | Label, lot and drawing revision record | Repeat orders and traceable acceptance |
These are requested acceptance documents, not a claim that a particular report or test is already supplied. Test coverage, methods, loss grade, compliance declarations and production capabilities are confirmation with BWNFiber. The source’s IEC/TIA/RoHS list is not treated as proof of compliance. No numeric IL/RL limits from another product are carried into this specification.
Need a Configuration Review or Sample?
Send your four-port destination schedule, connector drawing, routing dimensions, jacket requirement, quantity and endpoint equipment details with the subject Item 35 — A2 uniboot harness review. Ask for the confirmed part description, assembly drawing, acceptance criteria and quotation. Sample availability, MOQ, price and lead time require a written response: confirmation with BWNFiber.
For a different termination arrangement, start with the existing MPO/MTP breakout assembly range.
