Product Details
The Honeywell 51202971-312, also cataloged as the 51202971 Fiber Optic Cable, operates as a dedicated hardware component for high-speed data transmission within Experion LX control system networks. The pre-terminated LC duplex assembly establishes a low-latency, optical physical layer to interconnect processing nodes and communication switches across industrial automation architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51202971-312 |
| Brand | Honeywell |
| Origin | USA |
| Dimensions | 1.2 meters |
| Operating Temp | -40 deg C to +75 deg C |
| Power Consumption | Passive optical component (0 W) |
| Fiber Specification | OM3 50/125 um multi-mode |
| Wavelength | 850 nm |
| Connector Type | LC Duplex (male-to-male) |
| Attenuation | <= 3.5 dB/km at 850 nm |
| Isolation Voltage | 1500 V AC |
| Environmental Rating | 0-95% relative humidity (non-condensing) |
Channel-to-Channel Isolation and Optical Bus Connectivity
Within Honeywell DCS architectures, this optical interface provides absolute galvanic channel-to-channel isolation between distributed control nodes. By utilizing optical transmission instead of copper interconnects, the OM3 fiber eliminates ground loop potentials and provides total immunity to electromagnetic interference (EMI). This structural isolation creates a secure physical layer for multiplexed FOUNDATION Fieldbus / Profibus PA connectivity and digitized 4-20 mA HART loop protocol telemetry aggregated across Experion LX network switches.
Frequently Asked Questions
Q: What is the maximum bandwidth and transmission distance supported by the OM3 multi-mode core?
A: The 50/125 um OM3 fiber is optimized for 850 nm wavelengths, supporting data rates up to 1 Gbps with a modal bandwidth of 2000 MHz-km. It sustains signal integrity for maximum transmission distances of 300 meters before modal dispersion impacts the data link.
Q: Can the LC duplex connectors on this assembly be field-spliced?
A: The 51202971-312 is manufactured as a pre-terminated 1.2-meter patch assembly with factory-polished LC end-faces. Field splicing is not applicable for this specific short-run part number; any modifications will violate the <= 3.5 dB/km attenuation budget.
Field Installation Guidelines
- Bend Radius Restrictions: Maintain a minimum dynamic bend radius of 20 times the cable diameter during pulling operations and 10 times the diameter during static operation inside the cabinet to prevent micro-bending optical losses or core fracture.
- End-Face Preparation: Inspect and clean the LC duplex ceramic ferrules using a lint-free optical wipe and isopropyl alcohol immediately prior to insertion into the transceiver ports.
- Routing Segregation: Although fiber optic cores are immune to EMI, route the assembly in dedicated optical raceways to protect the external polymer jacket from mechanical crushing forces exerted by heavy high-voltage AC cables.
- Connection Seating: Insert the LC connectors directly into the transceiver housing until the mechanical latch clicks audibly. Leave factory dust caps installed until the exact moment of mating to prevent particulate contamination.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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