Product Details
Description
The TB840 Cluster Modem extends the Modulebus for distributed S800 I/O clusters using fiber optic connections. It provides signal isolation, eliminates ground loops, and resists EMI. Used in redundant pairs, it ensures reliable communication between the FCI and remote I/O in large industrial DCS systems.
Specifications
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Manufacturer: ABB
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Country of Origin: Sweden
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Model Number: TB840
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Order Number: 3BSE021456R1
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Product Series: S800 I/O
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Function: Modulebus Cluster Extension
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Communication Speed: 10 Mbit/s
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Redundancy: Supports dual-cluster modem configurations
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Power Supply: 24 V DC (via MTU)
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Approximate Weight: 0.15 kg
Features
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Optical Isolation: Converts electrical signals to fiber optics to provide total galvanic separation and noise immunity between clusters.
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Redundant Path Support: Facilitates the implementation of redundant Modulebus architectures for high-availability control systems.
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Signal Regeneration: Active electronics ensure that communication pulses are refreshed, allowing for reliable data transfer over extended distances.
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Compact Integration: Designed for efficient DIN-rail mounting on specialized Module Termination Units (MTUs).
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Diagnostic Monitoring: Features front-panel LED indicators to provide real-time status of power, traffic, and internal hardware health.
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.
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