Eaton N390B-25M-1X2AP 25 m OS2 MPO Breakout Cable

Name: Eaton N390B-25M-1X2AP 25 m OS2 MPO Breakout Cable
Brand: Eaton
SKU: N390B-25M-1X2AP
Price: 122.61 USD
Availability: InStock

Eaton|

MPN: N390B-25M-1X2AP

In Stock

$122.61

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Key Features

25 m optical cable length
OS2 8.3/125 µm single-mode fiber
1 x 8-fiber APC MPO female to 2 x 4-fiber breakout topology
High-density trunk-to-branch fiber transition
Split one 8-fiber APC MPO female connection into two 4-fiber branches.

Route a single-mode optical trunk from one 8-fiber APC MPO female connection into two separate 4-fiber branches with this 25 m breakout assembly. The Eaton N390B-25M-1X2AP uses OS2 8.3/125 µm fiber, making it suited to single-mode structured-cabling environments where fiber count must be divided without adding an intermediate breakout panel at the cable transition point. Its 1-to-2 topology distinguishes this cable from a straight MPO trunk: one eight-fiber MPO path is broken out to two four-fiber legs. That arrangement helps organize links where an eight-fiber backbone or equipment-side MPO interface must fan out toward separate four-fiber connections. The APC MPO female end provides the named high-density interface for the trunk side of the link. The 25 m length supports cross-row, cabinet-to-cabinet, and room-level optical paths where a short patch lead is insufficient but a fixed breakout topology remains preferable to multiple separate cables. Match the installed mating interface, fiber polarity method, and required termination at each four-fiber branch before installation. This cable provides the physical fiber transition; it does not replace the need to validate end-to-end optical design and connector compatibility.

Ideal For

Breaking out an 8-fiber MPO trunk into two four-fiber paths in a data center cabinet row.
Extending a single-mode backbone connection from an MPO interface to separate four-fiber branch routes.
Organizing structured optical cabling where a fixed 1-to-2 breakout is required over a 25 m path.

Why This Product

1Provides a fixed 1-to-2 breakout from one 8-fiber path to two 4-fiber branches.
2Uses a named APC MPO female connection on the eight-fiber side.
3Supplies a 25 m reach for longer structured-cabling paths.
4Uses OS2 8.3/125 µm single-mode fiber.

Physical

Cable Length	25 m
Shipping Weight	0.00 lb

Connectivity

Breakout Configuration

1 x 8-fiber APC MPO female to 2 x 4-fiber breakout

Optical Fiber

Fiber Type	OS2 single-mode fiber
Core/Cladding Size	8.3/125 µm

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Frequently Asked Questions

How do I confirm N390B-25M-1X2AP is the right part for my deployment?▾

Confirm that the cable run requires a 25 m OS2 single-mode breakout with one 8-fiber APC MPO female connection and two 4-fiber branches. Verify the mating connector interfaces, fiber polarity approach, and required endpoint terminations for the complete optical path.

What optical fiber does this breakout cable use?▾

This cable uses OS2 single-mode fiber with an 8.3/125 µm core-and-cladding specification. OS2 fiber is used for single-mode optical cabling paths and should be matched with compatible single-mode transceivers, panels, and installed fiber infrastructure.

What does the 1 x 8-fiber to 2 x 4-fiber configuration mean?▾

One eight-fiber trunk-side connection is divided into two separate four-fiber branches. This fixed breakout arrangement supports cabling layouts that begin with a high-density eight-fiber MPO path and need to route fiber toward two distinct four-fiber connection paths.

Does the cable use an APC MPO connector?▾

Yes. The eight-fiber side is specified with an APC MPO female connection. Confirm that the equipment, cassette, or patching component at the MPO end has the required mating connector style and supports the intended fiber polarity arrangement.