Panduit FY9WP77B005F148 48-Fiber Singlemode Plenum Trunk Cable Assembly
Overview
The Panduit FY9WP77B005F148 is a 48-fiber singlemode indoor trunk cable assembly from the QuickNet™ HD Flex sub-brand, purpose-built for structured cabling deployments in data centers, telecommunications rooms, entrance facilities, and equipment distribution areas. At 148 feet (45.1 meters), this pre-terminated assembly ships ready to pull and plug — eliminating the field termination labor, cure times, and polish variables that slow conventional fiber installation. The red jacket makes it visually distinct on a congested cable tray, and the streamlined pulling eye end simplifies routing through conduit and overhead pathways.
Pre-terminated fiber optic trunk assemblies like this one are increasingly the preferred approach in high-density spine-leaf and MDA/EDA architectures where installation windows are tight and termination quality needs to be consistent across hundreds of connections. Panduit's QuickNet HD Flex line is designed around that premise — factory-controlled termination quality, tested before it ships, so your team is pulling and connecting rather than cleaving and polishing.
Key Features
- 48-Fiber Count: A single pull installs 48 individual singlemode fibers simultaneously. In a typical data center row, that's enough to trunk a full rack's worth of 40G/100G uplinks in one cable run — compared to pulling a dozen 4-fiber assemblies, the labor savings per deployment are significant.
- Singlemode Glass (OS2-class application): Singlemode fiber supports transmission distances well beyond the reach of multimode — relevant when this trunk is bridging entrance facilities or spanning large campus buildings where runs exceed 300–500 meters. It also future-proofs the infrastructure for higher-wavelength DWDM applications without re-pulling cable.
- ST Connector Termination: ST connectors are a bayonet-style, twist-and-lock interface with a long installation base in telecommunications rooms and legacy enterprise campuses. If your patch panels or equipment ports are ST-keyed, this assembly plugs directly in — no adapter required. For new greenfield builds specifying LC or MPO, confirm your panel interface before ordering.
- Plenum (OFNP) Flammability Rating: OFNP-rated cable is required by the NEC for air-handling spaces — dropped ceilings, raised floors with active airflow, and above-ceiling plenums. Using riser-rated (OFNR) cable in a plenum space is a code violation that will fail inspection. This assembly is already rated for the strictest general-building fire environment, so it installs in both plenum and non-plenum pathways without substitution decisions at rough-in.
- 148-Foot (45.1m) Pre-Cut Length: Factory-cut to this specific run length, which matches common data center floor-to-MDA distances and inter-row trunk spans in mid-to-large facilities. Ordering pre-cut eliminates field measurement error and the cost of excess cable coiled in a ceiling. If your actual run is shorter, document the excess and dress it neatly — do not cut a pre-terminated assembly in the field.
- Pulling Eye End (Strain Relief): The staggered pulling eye end design distributes pull tension across the cable jacket rather than concentrating it at the connector ferrules. This matters during installation: fiber ferrule damage from excess pull force is one of the most common causes of elevated insertion loss on new trunk deployments.
- Red Cable Jacket: The red outer jacket is a visual administration convention — commonly used to identify singlemode fiber, specific network zones, or high-priority backbone runs depending on your site's color plan. In a mixed-fiber environment, jacket color is your fastest visual differentiation tool at the tray level.
- Indoor Application: Rated for indoor use in data centers, telecommunications rooms, entrance facilities, and equipment distribution areas. This is not an outdoor-rated assembly — do not route it through exterior conduit, direct burial, or any pathway exposed to UV or moisture ingress.
Integration and Compatibility
The FY9WP77B005F148 integrates directly with Panduit's QuickNet HD Flex infrastructure ecosystem — including compatible high-density patch panels, fiber enclosures, and splice trays designed around the same connector and cable geometry. ST-terminated assemblies also connect to legacy equipment panels from major vendors across telecommunications and enterprise networking environments where ST ports remain the installed standard.
When planning a deployment, verify that your patch panels and fiber enclosures are ST-port configured. Mixing ST assemblies with LC or MPO-based panels requires adapters that add insertion loss and complexity. For new builds standardizing on LC or MPO, Panduit's QuickNet HD Flex line offers parallel assemblies with those connector types — cross-reference the sub-brand before ordering.
The OFNP plenum rating satisfies NEC Article 770 requirements for optical fiber in air-handling spaces. Verify your local AHJ's interpretation before final specification — some jurisdictions apply additional requirements beyond national code minimums.
Frequently Asked Questions
Q: Is the FY9WP77B005F148 suitable for outdoor or direct-burial use?
A: No. This assembly is rated for indoor use only. The OFNP plenum jacket is not UV-stabilized or moisture-resistant for outdoor environments. For outdoor runs, specify an OSP-rated or armored outdoor assembly.
Q: What connector type does the FY9WP77B005F148 use, and does it work with LC patch panels?
A: This assembly terminates in ST connectors — a bayonet-style interface. It will not plug directly into LC or MPO-keyed panels. If your enclosures use LC or MPO ports, you will need either an ST-to-LC adapter or a different assembly with LC termination.
Q: Can I cut this assembly to a shorter length in the field?
A: No. Field-cutting a pre-terminated trunk assembly destroys the factory termination. These assemblies are manufactured and tested at exactly 148 feet (45.1 meters). If your run is shorter, dress the excess into the overhead pathway or enclosure — do not cut it.
Q: What spaces can this OFNP-rated cable be installed in?
A: OFNP (Optical Fiber Nonconductive Plenum) is the highest general-purpose NEC listing for indoor fiber. It can be installed in plenum air-handling spaces, riser shafts, and general-purpose pathways. It cannot be used in outdoor or direct-burial applications.
Q: How many fibers does the FY9WP77B005F148 carry?
A: 48 individual singlemode fibers. In a 40G/100G breakout scenario, a single pull of this assembly delivers enough fiber capacity to serve multiple rack-level aggregation switches in one run.
Q: Is the FY9WP77B005F148 part of a broader Panduit pre-terminated system?
A: Yes. It belongs to the QuickNet™ HD Flex sub-brand, which is Panduit's high-density pre-terminated fiber infrastructure platform. Compatible enclosures, panels, and accessories within the same product family are designed to pair with this assembly's connector geometry and cable diameter.
The FY9WP77B005F148 is a 148-foot, 48-fiber singlemode plenum trunk that I'd reach for in a specific situation: you have an established ST-terminated fiber infrastructure — whether in a telecom room, an entrance facility, or a legacy enterprise MDA — and you need to extend or add capacity without re-terminating your panel side. The factory-terminated pulling eye end is a detail worth noting; pulling tension is how field installers inadvertently introduce insertion loss on new trunks, and Panduit's staggered eye design distributes that load correctly.
Technical Highlights:
- 48-Fiber Singlemode, 45.1m (148ft): A single conduit pull delivers 48 OS2-capable fibers at a length that covers typical MDA-to-EDA spans in mid-size data center footprints — no field splicing, no cure time, factory-tested insertion loss before it ships.
- OFNP Plenum Rating: NEC Article 770 requires OFNP for air-handling spaces — this assembly satisfies that requirement outright, so you're not making a substitution call at rough-in or risking a failed inspection on riser-rated cable in a plenum ceiling.
- ST Connector Interface: ST is a proven bayonet interface with a large installed base in enterprise telecom rooms. If your panels are ST-keyed, this drops in with no adapters and no added loss budget to account for.
Deployment Considerations:
- Confirm your panel and enclosure ports are ST-keyed before ordering — ST-to-LC or ST-to-MPO adapters add 0.3–0.5 dB of insertion loss per connection, which compounds on long singlemode links near power budget limits.
- The 148-foot fixed length is the primary constraint: if your actual run is 110 feet, you are managing 38 feet of dressed excess. For significantly shorter runs, cross-reference Panduit's QuickNet HD Flex catalog for a shorter pre-cut length rather than ordering this SKU and coiling excess in the ceiling.
This assembly is the right call for entrance facility and telecom room buildouts in established ST-based enterprise campuses — particularly where installation schedules are compressed and field termination quality is a variable you'd rather eliminate entirely from the equation.
