Hubbell FHMTLCB8S6L3N 8-Fiber MPO to LC Single-Mode Fanout Cord, Type B, 3M

Overview

The Hubbell FHMTLCB8S6L3N is an 8-fiber MPO-to-LC single-mode fanout cord designed to bridge high-density MPO trunk infrastructure with LC-terminated equipment ports. At 3 meters, it gives you enough slack for clean in-rack or top-of-rack breakout runs without the cable management headaches of over-length cords. If you are building or extending a fiber optic cable backbone, this cord handles the last-meter transition from your MPO cassette or module to individual LC SFP ports on switches, transceivers, or NVRs.

The MPO connector on one end mates with standard 12-fiber or 8-fiber MPO adapters found in most pre-terminated fiber systems. The eight individual LC connectors on the breakout end connect directly to 1G or 10G SFP ports — no additional pigtails or splicing required. Type B polarity means the fiber positions are reversed end-to-end, which is the correct polarity for direct MPO-to-MPO connections in single-mode systems built to TIA-568 standards. Verify your system's polarity scheme before ordering: Type A and Type B cords are not interchangeable in a given link.

Single-mode construction supports long-distance runs with minimal signal loss — the right choice when your backbone extends beyond the 300-meter ceiling of multimode OM3/OM4 or when you are running 10G or higher over distances that multimode cannot reliably support. Pair this cord with compatible single-mode patch panels and fiber-capable network switches for a complete structured cabling solution. For guidance on fiber type selection and polarity planning, consult a structured cabling buying guide before finalizing your cable plant design.

Compatibility

The FHMTLCB8S6L3N is compatible with any MPO adapter or module accepting an 8-fiber or 12-fiber MPO ferrule in a Type B orientation. LC ports must be single-mode (OS1/OS2). Confirm port count and polarity with your MPO cassette or fiber panel manufacturer before deploying in an existing infrastructure — polarity mismatches cause link failures that are time-consuming to diagnose after installation.

Frequently Asked Questions

Q: What does Type B polarity mean on the FHMTLCB8S6L3N?

A: Type B polarity means the fiber strand positions are reversed between the MPO end and the LC breakout end. This follows TIA-568 Method B and is required for certain direct-connect MPO link configurations. It is not interchangeable with Type A polarity cords — check your infrastructure documentation before ordering.

Q: Is this cord single-mode or multimode?

A: The FHMTLCB8S6L3N is single-mode (SM), suitable for OS1/OS2 fiber plant deployments. It is not compatible with multimode OM1/OM2/OM3/OM4 systems.

Q: How many fibers does this cord carry?

A: Eight fibers. The MPO end consolidates all 8 into one connector; the LC end breaks them out into 8 individual LC simplex or 4 LC duplex connectors.

Q: What is the length of the FHMTLCB8S6L3N?

A: 3 meters (approximately 9.8 feet), suited for in-rack or short top-of-rack runs.

Q: Can I use this cord with a 12-fiber MPO cassette?

A: An 8-fiber MPO connector can physically mate with a 12-fiber MPO adapter in many systems, but only 8 of the 12 positions will be active. Verify compatibility with your specific MPO cassette or panel before deploying.

Karl Wilson

The FHMTLCB8S6L3N is a purpose-built 8-fiber MPO-to-LC Type B single-mode fanout cord at 3 meters — the kind of cable that either installs cleanly and is forgotten, or causes a day of troubleshooting if you order the wrong polarity type for your infrastructure. Get the polarity right upfront.

Technical Highlights:

• 8-Fiber MPO Connector: Consolidates eight single-mode strands into one MPO ferrule, enabling high-density breakout from a single cassette port to eight LC device ports without additional splicing or patch panels.
• Type B Polarity: Strand positions reverse end-to-end per TIA-568 Method B — correct for direct MPO link configurations but incompatible with Type A infrastructure. Verify before ordering; swapping polarity types after installation means pulling the cord.
• 3-Meter Single-Mode Construction: Sized for in-rack or top-of-rack runs; single-mode supports OS1/OS2 plant and is the correct choice when backbone distances exceed multimode limits or when 10G+ wavelengths are in play.

Deployment Considerations:

• Confirm your MPO cassette or panel polarity scheme before ordering — Type A and Type B are not field-swappable, and a polarity mismatch produces a dead link with no obvious visual indicator.
• At 3 meters this cord is sized for rack-internal or same-rack breakout only; cross-aisle or inter-rack runs will require a longer trunk or a different cord length from the same Hubbell family.

Best suited for data center top-of-rack deployments where a pre-terminated MPO backbone feeds individual 10G SFP ports on ToR switches or fiber-connected NVR appliances — anywhere you need a clean, polarity-correct 8-fiber breakout without field termination.