The Yellow MPO-MPO 12 Fibre Singlemode Distribution Trunk Cable provides pre-terminated 12-fibre connectivity for high-density fibre distribution, backbone and data centre infrastructure.
Because MPO networks can use different connector genders and fibre mappings, fibreSales offers this trunk with selectable MPO gender, cable length and polarity. Customers can therefore configure the assembly to match the requirements of their existing MPO infrastructure.
Select the required configuration when ordering:
| Ordering Option | Selection |
|---|---|
| Fibre Count | 12 Fibre |
| Fibre Type | Singlemode |
| Connector A | MPO |
| Connector B | MPO |
| MPO Gender | Select Male / Female configuration |
| Polarity | Type A / Type B / Type C |
| Cable Length | Select required length |
| Cable Colour | Yellow |
| Cable Type | Distribution Trunk |
Before ordering, confirm three critical variables: MPO gender, cable length and polarity.
Choosing a 12-fibre singlemode MPO cable without checking these options can result in an assembly that physically connects incorrectly or maps the fibres differently from the rest of the optical channel.
MPO connectors are available as male or female.
A male MPO connector contains alignment pins, while a female MPO connector does not. Correct mating normally requires one male and one female interface; two pinned male connectors should not be mated together. Fluke also notes that active equipment commonly presents male MPO interfaces, meaning a cable connecting directly to that equipment typically requires a female MPO connector. Fluke Networks
Because your fibreSales trunk is configurable, the customer should select the appropriate male/female arrangement for the equipment, adaptors, cassettes or other MPO components at each end of the link.
Polarity determines where each of the 12 fibres at one end arrives at the other end. This is critical because an optical channel ultimately needs the transmit path at one end to reach the corresponding receive path at the other.
The three established 12-fibre MPO cable mappings are Type A, Type B and Type C. Fluke Networks
| Polarity | 12-Fibre Mapping | Description |
|---|---|---|
| Type A | 1→1, 2→2, 3→3 … 12→12 | Straight-through |
| Type B | 1→12, 2→11, 3→10 … 12→1 | Reversed |
| Type C | 1→2, 2→1, 3→4, 4→3 … | Pair-flipped |
Type A maintains each fibre position from one end of the trunk to the other.
For a 12-fibre cable:
1 → 1
2 → 2
3 → 3
4 → 4
through to
12 → 12
Traditional Type A trunks use a Key Up to Key Down arrangement. Because the trunk itself does not create the Tx/Rx crossover, the complete channel must provide the necessary polarity elsewhere. Fluke Networks
Type B reverses all 12 fibre positions:
1 → 12
2 → 11
3 → 10
4 → 9
5 → 8
6 → 7
The mapping then continues in reverse through the remaining fibres.
Type B traditionally uses a Key Up to Key Up cable arrangement. The reversed mapping provides the end-to-end fibre position change within the trunk. Fluke Networks
Type C swaps adjacent fibre pairs:
1 → 2
2 → 1
3 → 4
4 → 3
5 → 6
6 → 5
This pattern continues across all 12 fibres.
Type C uses the cable itself to create the pair-by-pair crossover. It is associated primarily with duplex applications; Fluke notes that Method C is not recommended for parallel-fibre applications because of the additional polarity complexity involved. Fluke Networks
There isn’t one polarity that is automatically correct for every MPO installation.
The selection needs to match the polarity method used throughout the complete fibre channel, including trunks, adaptors, cassettes, patch leads and equipment interfaces.
Therefore, before ordering, check the existing system documentation or confirm the required mapping with the network designer.
Do not replace a Type A trunk with Type B simply because both cables have 12-fibre MPO connectors. The internal fibre mapping is different.
This distinction is worth making very clear on the product page.
Gender describes whether the MPO connector has alignment pins:
Male = pins
Female = no pins
Polarity describes how the individual fibres map from one end of the cable to the other:
A = straight
B = reversed
C = pair-flipped
Therefore, a customer needs to check both gender and polarity when configuring the trunk. Fluke Networks
The third ordering option is length.
Selecting the appropriate manufactured length avoids unnecessary excess cable while ensuring the trunk comfortably reaches between the intended MPO connection points.
Before ordering, consider:
Avoid choosing a length based only on the straight-line distance between cabinets.
| Specification | Details |
|---|---|
| Product | MPO-MPO Distribution Trunk Cable |
| Connector A | MPO |
| Connector B | MPO |
| Fibre Count | 12 Fibre |
| Fibre Type | Singlemode |
| Cable Colour | Yellow |
| Gender | Select when ordering |
| Polarity | Select Type A, Type B or Type C |
| Length | Select when ordering |
| Configuration | MPO-MPO |
| Application | Fibre Distribution / Trunk Connectivity |
Before adding the cable to your order, confirm:
Designed for fibre distribution and backbone applications, the cable provides a practical option for data centres, communications rooms and other installations where fibre density and organised cable deployment matter.
An MPO trunk cable combines multiple optical fibres within a single cable assembly and terminates them through multi-fibre MPO connectors.
This model contains 12 singlemode fibres and provides an MPO connection at each end.
Consequently, one trunk assembly can provide a considerably more compact connection than deploying the same number of fibres as individual simplex connections.
Choose this cable when the network design requires a 12-fibre singlemode trunk with MPO connectivity at both ends.
Before ordering, confirm the required MPO gender, polarity, connector polish and cable length, because those characteristics must match the equipment and overall MPO system design.
The cable carries 12 optical fibres through a single MPO-to-MPO assembly.
That configuration makes MPO particularly useful in environments where installers need to manage multiple fibres efficiently. Instead of individually connecting 12 separate fibre strands at each end of the link, compatible MPO infrastructure consolidates them into multi-fibre interfaces.
This can simplify:
This trunk uses singlemode fibre, distinguishing it from multimode MPO assemblies within the fibreSales range.
Singlemode and multimode assemblies should not be treated as interchangeable merely because both use MPO connectors. The complete optical system must use the appropriate fibre type for the network design and connected equipment.
The yellow cable also provides straightforward visual identification within an installation.
Typical applications include:
| Specification | Details |
|---|---|
| Product Type | MPO Distribution Trunk Cable |
| Connector End A | MPO |
| Connector End B | MPO |
| Fibre Count | 12 Fibre |
| Fibre Type | Singlemode |
| Cable Colour | Yellow |
| Configuration | MPO-MPO |
| Application | Fibre Distribution / Trunk Connectivity |
I would not add MPO gender, polarity, polish, fibre grade, jacket type, insertion loss or cable diameter until we have those specifications for this exact assembly.
A single MPO connector handles multiple fibres. Therefore, MPO infrastructure can reduce the number of individual connector interfaces required for high-fibre-count links.
The MPO connectors arrive as part of the cable assembly, reducing the need to terminate individual fibres at the installation point.
Consolidating 12 fibres into a trunk assembly can make high-density fibre pathways easier to organise and manage.
MPO trunk cabling commonly forms part of modular fibre distribution systems, allowing compatible cassettes, modules and other MPO components to connect through structured trunk links.
The correct assembly depends on what exists at each end of the link.
| Cable Configuration | Primary Function |
|---|---|
| MPO-MPO | Multi-fibre trunk connection between compatible MPO interfaces |
| MPO-LC | Breakout/distribution between an MPO interface and individual LC connections |
This product provides MPO at both ends, so it is intended for applications requiring an MPO trunk rather than an LC breakout.
MPO systems require careful attention to fibre polarity.
Do not select an MPO trunk solely by fibre count and connector appearance. The cable must fit the polarity method used throughout the complete link.
Before ordering, verify:
These details become especially important when the trunk forms part of a larger system incorporating cassettes, adaptors or breakout assemblies.
Protect MPO connector end faces from contamination throughout installation. Because one MPO connector contains multiple fibres, contamination or damage can affect several optical paths at the same connection point.
Keep protective caps fitted until the connection is ready, and inspect and clean the connector according to the installation procedure before mating.
fibreSales supplies Fibre Cleaning Products and Fibre Inspection Microscopes for fibre installation and maintenance.
Cable colour provides useful visual identification, but it does not establish every technical characteristic of the assembly.
MPO connector gender must match the mating interface. Confirm the required configuration before ordering.
Correct fibre mapping through an MPO system depends on the specified polarity arrangement.
Two 12-fibre MPO trunk cables can differ in fibre type, gender, polarity, polish, length and other construction details.
An MPO-MPO trunk has MPO connectivity at both ends. By comparison, an MPO-to-LC assembly transitions the multi-fibre MPO interface into individual LC connections.
For compatible fibre infrastructure and maintenance requirements, see:
fibreSales supplies fibre optic connectivity, testing, installation and distribution products for Australian network infrastructure.
The Yellow MPO-MPO 12 Fibre Singlemode Distribution Trunk Cable provides a pre-terminated multi-fibre option for networks requiring 12-fibre singlemode connectivity between compatible MPO interfaces.
The cable contains 12 singlemode fibres.
The assembly has an MPO connector at each end.
This version is singlemode.
The cable is yellow.
No. This product provides MPO-to-MPO connectivity.
A distribution trunk provides multi-fibre connectivity between compatible points within a fibre distribution system.
Yes. Connector gender must match the intended mating interface.
Yes. Polarity forms an important part of an MPO system and must match the network design.
The polarity has not yet been specified for this exact product. Confirm it before we publish a polarity designation.
The gender has not yet been provided, so we should not assign a male or female specification until confirmed.
The connector polish has not yet been confirmed for this product.
This assembly uses singlemode fibre. Select the cable according to the fibre type and optical requirements of the complete system.
Choose this assembly when your fibre infrastructure requires a 12-fibre singlemode MPO-to-MPO trunk connection.
Before ordering, confirm the required length, MPO gender, polarity and connector polish so the cable matches the rest of the MPO infrastructure.
The Yellow MPO-MPO 12 Fibre Singlemode Distribution Trunk Cable combines 12 singlemode fibres within a pre-terminated MPO-to-MPO assembly for high-density fibre distribution and backbone applications.
Its multi-fibre format provides a compact alternative to managing the equivalent number of individual fibre connections, while MPO termination supports modular, organised fibre infrastructure.
For more fibre optic solutions, technical resources, and installation products, visit www.fibresales.com.au.
Application
-Backbone installations
| File | File size |
|---|---|
| MTPMPO Trunk Cables Brochure | 232 KB |
| File | File size |
|---|---|
| MTPMPO Trunk Cables Brochure | 232 KB |