Product Details
Product Description
The 1788-FBJB6 serves as a high-reliability distribution node for H1 segment networking. Engineered by Allen-Bradley, this junction box facilitates the integration of up to six field instruments within a process control architecture. It is designed to maintain signal integrity across long-run trunk lines while providing branched connectivity for localized device clusters.
This module supports both FOUNDATION Fieldbus and PROFIBUS PA physical layers, adhering to the IEC 61158-2 standard. The open-style construction is optimized for cabinet installation, utilizing a compact footprint to maximize rail space. With a current consumption of only 40 mA, it minimizes the overall power budget of the fieldbus segment.
Technical Specifications
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Manufacturer: Allen-Bradley / Rockwell Automation
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Model Designation: 1788-FBJB6
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Network Compatibility: FOUNDATION Fieldbus (H1) and PROFIBUS PA
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Device Capacity: 6 H1 Media Drops (Spurs)
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Trunk Interfaces: 1 Port Input / 1 Port Output (Daisy-chain capable)
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Operating Voltage Range: 12 to 32V DC
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Internal Current Draw: 40 mA @ 24V DC
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Mounting Infrastructure: Standard 35mm DIN Rail
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Physical Housing: Open-style (IP00 rated)
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Wiring Torque Specifications: 0.5 to 0.6 Nm (4.4 to 5.3 lb-in)
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Mechanical Shock Rating: 15 G (Operating)
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Net Weight: 0.34 kg (0.75 lbs)
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Isolation: Non-isolated (Common ground architecture)
Implementation FAQ
Does the 1788-FBJB6 include integrated bus termination?The 1788-FBJB6 provides the physical connection points for a segment but typically requires an external terminator if it is located at the end of the trunk line. Always verify segment impedance during commissioning.
Can this unit be used in hazardous areas?As an open-style device, it must be installed within a secondary enclosure (NEMA 4X or IP66) that meets the specific hazardous location ratings (Class/Division or ATEX) required for the environment.
Is it compatible with different cable types?Yes, it accepts standard Type A fieldbus shielded twisted-pair cabling. Ensure the terminal torque is strictly followed to prevent signal intermittent issues in high-vibration environments.
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
Understanding Marshalling Cabinets in Industrial Control Systems Architecture
Industrial control system deployments rely on structured signal distribution to bridge field instrumentation with central processing hardware. A marshalling cabinet serves as the vital intermediate connection point between heavy field home-run multi-pair cables and delicate input/output (I/O) modules housed inside Programmable Logic Controller (PLC) or Distributed Control System (DCS) enclosures. By segregating field cable terminations from control hardware, engineers maintain system flexibility, safeguard controller components, and streamline commissioning workflows.
FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
Industrial control system deployment relies on strict verification protocols to guarantee operational safety, system stability, and regulatory compliance. Commissioning complex Programmable Logic Controller (PLC) racks, Distributed Control Systems (DCS), and Safety Instrumented Systems (SIS) requires two critical milestones: the Factory Acceptance Test (FAT) and the Site Acceptance Test (SAT). Both procedures validate that system automation meets design specifications, but they occur at different stages of project execution and target distinct operational risks.
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.