Panduit FY9WP77B005F036 48-Fiber Single-Mode Plenum Trunk Cable Assembly
The Panduit FY9WP77B005F036 is a 48-fiber single-mode indoor trunk cable assembly from the QuickNet™ HD Flex sub-brand, purpose-built for pre-terminated fiber infrastructure in environments where installation speed and air-handling compliance are non-negotiable. At 36 feet (11 meters), this assembly is sized for horizontal or inter-rack runs within data centers, telecommunications rooms, entrance facilities, and equipment distribution areas — deployed pull-and-plug rather than field-terminated, eliminating splice labor and the variability that comes with it. The red cable jacket makes it instantly identifiable in high-density trays and eliminates the guesswork during moves, adds, and changes.
Overview
Pre-terminated fiber optic trunk cables exist to compress deployment timelines and reduce termination errors in high-density environments. The FY9WP77B005F036 ships factory-terminated and tested — you're not field-polishing 48 ST connectors under time pressure. For teams managing structured cabling rollouts across multiple racks or floors, the difference between a pre-terminated trunk and a bulk cable spool is measured in hours of labor per run, not minutes.
The Panduit QuickNet HD Flex line is engineered around the premise that fiber infrastructure should go in fast and perform reliably for the life of the building — explore the full Panduit cabling catalog for the broader ecosystem of panels, enclosures, and connectors this trunk integrates with.
Key Features
- 48-Fiber Single-Mode Core: Single-mode glass carries signal over longer distances with lower attenuation than multimode — critical in data center spine-leaf topologies where aggregation switches may be 100+ feet from edge nodes. 48 fibers in a single trunk means one pull covers what would otherwise require multiple smaller cables, cutting conduit fill and pull time.
- ST Connectors (Polarity Type B): ST bayonet connectors are a known quantity in legacy and mixed-vintage environments. Polarity Type B (PLRTYB) reverses the A-to-B fiber mapping across the trunk — verify your panel and equipment port polarity map before ordering. Mismatched polarity is the most common commissioning error with pre-terminated trunks, and it won't be visible until link-up testing.
- Plenum (OFNP) Flammability Rating: OFNP-rated cable is code-compliant for installation in air-handling plenums and raised-floor environments without conduit — a requirement in most commercial and enterprise facilities where HVAC air returns run through cable trays. Using non-plenum cable in these spaces is a code violation; this assembly eliminates that risk.
- 36-Foot (11-Meter) Factory Length: Pre-cut to 36 feet, this trunk is sized for inter-rack or top-of-rack-to-patch-panel runs in standard data center row configurations. Ordering pre-terminated at the correct length removes excess slack management from the equation — but measure your specific run before ordering, since factory-terminated trunks cannot be field-shortened without defeating the termination.
- Red Cable Jacket: Color coding is a maintenance discipline, not cosmetics. Red conventionally designates single-mode fiber in many data center standards. In a high-density tray with dozens of cables, color identification prevents accidental disconnection of the wrong circuit during maintenance or troubleshooting — a genuine operational safeguard.
- Indoor Small-Diameter Trunk Construction: Small-diameter construction reduces bend radius and cable tray fill compared to conventional round cables, allowing more fibers to pass through the same conduit or tray without violating fill ratios. This matters in renovation deployments where existing pathways are already congested.
- QuickNet™ HD Flex Platform: As part of the Panduit QuickNet HD Flex ecosystem, this trunk is designed to mate with compatible HD Flex panels and enclosures — meaning the connector geometry, polarity labeling, and ferrule spacing align with the broader system. This reduces the risk of connector-to-panel mismatch that can damage ferrules during blind installation in tight enclosures.
Integration and Compatibility
The FY9WP77B005F036 is designed for integration with Panduit QuickNet HD Flex patch panels and enclosures in data centers, telecommunications rooms, entrance facilities, and equipment distribution areas. ST connector terminations are compatible with equipment and panels featuring ST receptacles, which appear in both legacy and current-generation optical equipment. For high-density fiber patch panel installations, confirm that your enclosure supports 48-fiber trunk connectivity and that the polarity scheme (Type B) matches your panel labeling. This assembly is not suitable for outdoor or direct-burial applications — it is rated for indoor use only.
For environments migrating to LC or MTP/MPO connectivity, this ST-terminated trunk will require ST-to-LC hybrid adapters at panel interfaces — factor that into bill-of-materials planning. See our fiber optic cable selection guide for polarity mapping references and connector compatibility charts.
Frequently Asked Questions
Q: What polarity type is the FY9WP77B005F036?
A: The FY9WP77B005F036 uses Polarity Type B (PLRTYB). This reverses fiber mapping from end A to end B of the trunk. Verify that your patch panels and equipment are configured for Type B polarity before ordering — mismatched polarity will prevent link-up and is the most common commissioning error with pre-terminated trunks.
Q: Is the FY9WP77B005F036 suitable for installation in air-handling plenums?
A: Yes. The FY9WP77B005F036 carries a Plenum (OFNP) flammability rating, making it compliant for installation in air-handling spaces and raised-floor environments in commercial facilities. No conduit is required in plenum spaces when using OFNP-rated cable.
Q: Can the FY9WP77B005F036 be used outdoors?
A: No. This assembly is rated for indoor use only. It is not designed for outdoor, direct-burial, or wet-location applications. Select an outdoor-rated assembly for exterior or underground runs.
Q: What is the exact length of the FY9WP77B005F036?
A: The FY9WP77B005F036 is factory-terminated at 36 feet (11 meters). Pre-terminated trunks cannot be field-shortened without losing the factory termination, so confirm your actual run distance before ordering.
Q: What connector type does the FY9WP77B005F036 use?
A: The FY9WP77B005F036 terminates with ST connectors. ST is a bayonet-style push-and-twist connector common in legacy data center and telecommunications equipment. If your panels or equipment use LC or MTP/MPO interfaces, you will need appropriate hybrid adapters.
Q: How many fibers does the FY9WP77B005F036 carry?
A: This trunk carries 48 single-mode fibers. Deploying a single 48-fiber trunk replaces multiple smaller cables in the same pathway, reducing tray fill and simplifying moves, adds, and changes in high-density environments.
The FY9WP77B005F036 is a product I reach for when a data center team needs to hit a go-live date without sacrificing fiber quality or code compliance. The 48-fiber single-mode construction at 36 feet covers the majority of inter-rack horizontal runs, and the OFNP plenum rating means you're not calling the AHJ for a variance before you can route through the ceiling cavity. That combination of density and code readiness is what makes this trunk practical rather than just impressive on paper.
Technical Highlights:
- 48 Single-Mode Fibers: Consolidates what might otherwise be four 12-fiber runs into a single cable pull — reducing conduit fill, labor time, and the number of discrete connections to test and document at commissioning.
- OFNP Plenum Rating: Satisfies NEC Article 770 requirements for optical fiber cable in air-handling spaces without requiring conduit — a real cost and schedule factor in multi-floor enterprise deployments where plenum paths are the dominant routing option.
- ST Connectors, Polarity Type B: Factory-terminated and tested, which eliminates field polishing variability on 48 fiber ends. The Type B polarity is the spec most likely to cause a commissioning headache — confirm panel polarity maps before this cable goes in the tray.
Deployment Considerations:
- This trunk is factory-cut to exactly 36 feet (11 meters) — measure your actual run with slack management accounted for before ordering. Unlike bulk cable, you cannot trim a pre-terminated assembly in the field without voiding the factory termination.
- ST connectors are a legacy interface; if your aggregation switches or panels have transitioned to LC or MTP/MPO, plan for hybrid adapter panels at each end — they add connection points and should be included in your optical loss budget calculation.
This assembly is the right fit for a greenfield data center build or structured cabling refresh in a telecommunications room where the routing path runs through an air-handling plenum, the fiber count per pathway needs to be maximized, and the project timeline does not support field termination labor.
