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Honeywell 51304493-100

Product Name:​ HPM Modem Card
Product Introduction:​ The Honeywell 51304493-100 is an HPM Modem Card configured for modem-based communication in the Honeywell TDC 3000 Universal Control Network (UCN). It provides the direct physical execution of subsystem data transfer between Process Manager modules (PM/HPM).

Detailed content

Technical Specifications:
  • Part Number: 51304493-100
  • module Type: PM/HPM Modem Card (PCB board)
  • System Family: Honeywell TDC 3000 / UCN
  • Weight: 0.71 lbs
  • Power: Backplane supplied (exact consumption not specified)
  • Core Function: PM/HPM modem communication interface
  • Protocol Support: 4-20 mA HART loop protocol
  • Status: Discontinued by Honeywell
  • Origin: USA
Functional Features:​ Enables hybrid analog/digital communication for field devices via the 4-20 mA HART loop protocol, allowing simultaneous transmission of process variables and diagnostic data. Channel-to-channel isolation is maintained to prevent interference between multiple signal paths, ensuring deterministic communication within the UCN.
Application Scenarios:​ Subsystem data transfer within Honeywell TDC 3000 UCN environments; PM/HPM module interconnection.
Structural Characteristics:​ A printed circuit board (PC board) card that plugs into the PM/HPM chassis backplane.
Working Principle:​ Acts as a hardware modem interface to physically execute data transfer between PM/HPM modules over the UCN.
Installation Requirements:
  • Ensure proper seating into the PM/HPM chassis backplane connector.
  • Maintain shielded cabling for modem signal paths with grounding at a single point to avoid ground loops.
  • Observe routing practices to separate communication lines from high-voltage conductors.
  • Verify mechanical retention clips are engaged to prevent vibration-induced loosening.
  • Follow Honeywell TDC 3000 installation manuals for slot assignment and subsystem addressing.
Usage Precautions:​ Does NOT support hot-swap installation; removal or insertion must be performed during system shutdown to avoid backplane bus disruption. The card draws power directly from the PM/HPM backplane; current load must be considered in chassis load planning. Firmware updates are not required as it is a hardware interface.

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