Hubbell HDFHPCLCPRPG4M2 OM4 Duplex LC Plenum Fiber Patch Cord
Overview
The Hubbell HDFHPCLCPRPG4M2 is a 2-meter, OM4 multimode duplex fiber patch cord terminated with LC push-rod connectors on both ends in a reverse-polarity configuration. The aqua jacket carries a plenum (CMP) rating, making it the correct choice for horizontal runs above suspended ceilings and inside HVAC air-handling spaces where fire code prohibits riser or LSZH-only cables. If you are deploying high-density 40G or 100G links — transceiver-to-switch, switch-to-patch-panel, or structured cabling cross-connect — this cord covers the short-reach segment with the fiber grade those speeds demand.
Key Features
- OM4 Multimode Fiber: OM4 supports 40GbE and 100GbE links at distances up to 150 meters — far beyond what a 2-meter patch cord will ever be asked to cover. In practice this means you have headroom when a port on an adjacent switch or transceiver requires guaranteed OM4 performance; mixing OM3 into an OM4 plant introduces a performance ceiling you may not notice until throughput drops under load.
- LC Push-Rod Connectors: Push-rod (also called push-pull tab) LC connectors let you release the latch with a straight push rather than reaching in with a finger or tool. In a fully loaded 1U patch panel where ports are stacked 24 or 48 high, this is not a convenience feature — it is the only practical way to disconnect a specific cord without disturbing adjacent connectors. Reverse-polarity orientation is built into the connector, not added with an adapter.
- Reverse Polarity (RP) Configuration: The HDFHPCLCPRPG4M2 ships with the transmit and receive fibers deliberately swapped at one end. This is required for MPO-based parallel optic infrastructures where polarity must alternate across the link to ensure TX at one end aligns with RX at the other. Verify your polarity scheme (Method A, B, or C per TIA-568) before ordering — an RP cord in the wrong position introduces a dark link that can take hours to trace.
- Plenum (CMP) Jacket Rating: CMP-rated cables meet NFPA 262 flame and smoke propagation requirements for installation inside building air plenums. If your pathway crosses a ceiling return-air space, this is the legally required jacket grade in most US jurisdictions. Using a riser (CMR) or general-purpose cable in a plenum space is a code violation that will surface during inspection or insurance review.
- Duplex Configuration: Two fibers in a single jacket cover full-duplex transmission — one fiber carries TX, one carries RX — which is standard for transceiver-based Ethernet, Fibre Channel, and most structured cabling links. No separate simplex cords or adapter keys needed.
- 2-Meter Length: Two meters is the practical standard for within-rack and top-of-rack switch connections: long enough to dress cleanly through a cable manager without stressing the connector, short enough to avoid coiling excess cord that traps heat and creates cable management headaches. If your patch panel and switch are in adjacent rack units, 1 meter works; if they span more than 2U with a horizontal manager between them, consider 3 meters.
- Aqua Color Coding: Aqua is the TIA-568 and ISO/IEC 11801 standard color for OM3/OM4 multimode fiber. Color-coding enforces polarity and fiber-type discipline at a glance during moves, adds, and changes — especially valuable in multi-fiber-type environments where OM1 (orange), OS2 (yellow), and OM4 (aqua) cables coexist in the same tray.
Integration & Compatibility
This cord integrates directly with any LC duplex transceiver port — SFP+, SFP28, QSFP+ breakout, or 10G BASE-SR/LR modules — on switches, NVRs, servers, or storage arrays from any manufacturer. The LC connector form factor is the dominant interface on enterprise-grade 10G and 25G optics, so compatibility is broad. Because this is a passive optical component, there are no firmware, vendor lock-in, or VMS compatibility concerns. The OM4 fiber grade is backward compatible with OM3 equipment, though the link budget will be governed by the lower-performing fiber in a mixed-grade plant.
For fiber optic patch cord selections across multiple lengths and connector types, the full Hubbell cabling line covers LC, SC, ST, and MPO configurations in both singlemode and multimode grades. When planning a high-density fiber backbone, pair this cord with compatible fiber optic assemblies and a fiber patch panel to maintain organized cross-connect points. For network equipment on the receiving end, network switches with SFP+ or SFP28 uplink ports are the typical pairing in data center and IDF closet deployments.
Frequently Asked Questions
Q: What does reverse polarity mean on the HDFHPCLCPRPG4M2, and do I need it?
A: Reverse polarity (RP) means the TX and RX fibers are swapped at one end of the cord. This is required in MPO-based parallel optic systems where the cabling method (TIA-568 Method A, B, or C) dictates an alternating polarity scheme to ensure transmit aligns with receive across the full link. If you are not using MPO trunks or your plant uses standard (non-RP) polarity throughout, you need a standard duplex cord, not an RP cord. Installing an RP cord in the wrong position will result in a dark link.
Q: Can the HDFHPCLCPRPG4M2 be installed in a plenum ceiling space?
A: Yes. The CMP (plenum) jacket rating satisfies NFPA 262 requirements for installation in air-handling ceiling plenums and HVAC return-air spaces. It is the correct jacket grade for horizontal runs in US commercial buildings where the pathway crosses a plenum space. A riser (CMR) cable is not a permissible substitute in a plenum space.
Q: Does this cord support 40GbE or 100GbE?
A: The OM4 fiber grade supports 40GbE to 150 meters and 100GbE to 150 meters per IEEE standards. At 2 meters, the link length is well within specification for both speeds. The optics (transceivers) at each end must also be OM4-compatible; the cord itself introduces no speed limitation at this length.
Q: What is the difference between a push-rod LC and a standard LC connector?
A: A standard LC connector uses a small plastic latch that you depress with your fingertip. A push-rod (push-pull tab) LC adds a sliding sleeve or tab over the latch that you push toward the port to release. In dense patch panels where ports are spaced 5–6mm apart, the push-rod mechanism allows disconnection without a tool and without disturbing adjacent cords — a practical necessity in any high-density fiber installation.
Q: Is OM4 backward compatible with OM3 ports?
A: Yes. OM4 fiber is physically identical in connector geometry and core diameter (50/125µm) to OM3. You can connect an OM4 patch cord to an OM3-rated transceiver and it will function. However, the link budget for the combined OM3/OM4 plant will be limited by the lower OM3 bandwidth specification, so for new installations it is better practice to keep the fiber grade consistent throughout the link.
The detail I want to flag on the HDFHPCLCPRPG4M2 is the reverse-polarity orientation combined with the push-rod LC termination — these two specifications exist for the same reason: to solve a specific density and polarity problem in high-port-count fiber infrastructure, not to be used as a universal drop-in patch cord. If your deployment calls for this cord, you likely already know you need it; if you are not certain, that uncertainty is the right signal to verify your polarity scheme before the cords arrive on site.
Technical Highlights:
- OM4 Fiber Grade: 50/125µm laser-optimized multimode — minimum effective modal bandwidth of 4700 MHz·km (overfilled) and 2000 MHz·km (effective), which translates to certified support for 40G and 100G parallel optic applications at distances far beyond the 2-meter use case here.
- CMP Plenum Jacket: Rated to NFPA 262 for smoke and flame in air-plenums — the legally required jacket when the cable pathway enters a return-air ceiling space under US building codes. Not a marketing designation; it determines whether the installation passes inspection.
- Push-Rod LC Connector: The sliding-tab release mechanism is engineered for 24- and 48-port LC patch panels where standard-latch LC connectors physically cannot be individually released without disturbing adjacent cords. Saves time during MACs and prevents the accidental link drops that come from wrestling standard latches in tight rows.
Deployment Considerations:
- Confirm your polarity method (TIA-568 Method A, B, or C) before deploying RP cords — the reverse-polarity configuration is correct only at specific positions in the link; installing it at the wrong position creates a dark fiber that passes all physical inspection and only manifests as a dead link under traffic.
- At 2 meters, this cord is sized for within-rack or adjacent-rack patch panel to switch connections; if your horizontal run exceeds 3–4 meters between termination points, order the appropriate longer variant rather than looping excess cable, which adds insertion loss and creates a cable management hazard.
This cord is the right specification for a data center or IDF closet deploying an MPO-based OM4 backbone with LC breakout connections at the equipment side — specifically where push-rod density and polarity discipline are non-negotiable. It is not the right cord for a general-purpose LC-to-LC patch where standard polarity and a conventional latch connector will do the job at lower cost.
