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HONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev DHONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev DHONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev D
HONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev D
HONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev D
HONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev D

HONEYWELL 51304848-100 K4LCN COMPEQ Processor Board Rev D


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PRODUCT SKU : 51304848-100

PRODUCT TYPE : Central Processing Units

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

The Honeywell 51304848-100, also cataloged as the 51304848 K4LCN COMPEQ Processor Board, operates as a dedicated hardware component for high-speed local control network processing and system bus management within Honeywell TDC 3000 Local Control Network (LCN) architectures.

Hardware Specifications

Parameter Specification
Model 51304848-100 (Revision D)
Brand Honeywell
Base Model K4LCN COMPEQ
Product Type LCN Communications Processor Board
Origin USA
Weight 0.85 kg
Dimensions Standard LCN card file slot form factor
Operating Temp 0 deg C to +60 deg C
Power Consumption Powered via LCN backplane bus (+5 VDC / +12 VDC)
System Architecture Honeywell TDC 3000 / LCN Network Nodes

Channel-to-Channel Isolation and Bus Signal Integrity

Configured for high-throughput network data processing, the 51304848-100 executes real-time token-passing communications across the dual-redundant TDC 3000 Local Control Network coaxial cable bus. The board utilizes transformer-isolated transceiver channels to decouple high-speed network communication paths from internal micro-controller logic. By establishing physical dielectric barriers between coaxial cable drops and backplane circuitry, the module eliminates ground loop currents, mitigates electromagnetic interference (EMI), and maintains deterministic packet transmission across distributed process nodes managing 4-20 mA HART loop protocol I/O subsystems.

Frequently Asked Questions

Q: What operational changes are introduced in Revision D of the 51304848-100 board?

A: Revision D incorporates updated board-level timing circuits and enhanced component heat dissipation profiles to improve long-term thermal stability during continuous high-load network operations.

Q: Can the K4LCN COMPEQ processor board be extracted or inserted while the LCN node power is on?

A: No, online insertion or removal of the board without proper node bypass procedures can disrupt real-time LCN token passing and cause temporary communication loss across connected network nodes.

Field Installation Guidelines

  • Electrostatic Discharge Protection: Always wear a grounded ESD wrist strap clipped to the metal cabinet frame prior to opening anti-static packaging or handling the printed circuit board.
  • Card Slot Insertion: Align board edges accurately within the upper and lower card guides of the LCN chassis, pushing firmly until the dual faceplate ejector levers lock flush into position.
  • Coaxial Connector Engagement: Verify that all BNC coaxial cable connectors attached to the board or its associated transition card are fully engaged and twisted to secure bayonet locks.
  • Cabinet Thermal Flow: Maintain unobstructed airflow through cabinet cooling fans to ensure ambient temperatures inside the LCN rack do not exceed +60 deg C.

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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