Honeywell 51304493-100 HPM Modem Card

Honeywell 51304493-100 HPM Modem Card

Configured for modem-based communication in Honeywell TDC 3000 Universal Control Network (UCN), the Honeywell 51304493-100 (51304493 HPM Modem Card) provides direct physical execution of subsystem data transfer between Process Manager (PM/HPM) modules.

Hardware Specifications

4-20 mA HART Loop Protocol

The modem card supports integration with 4-20 mA HART loop protocol, enabling hybrid analog/digital communication for field devices. This allows 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.

Frequently Asked Questions

Q: Does the 51304493-100 support hot-swap installation? A: No, removal or insertion must be performed during system shutdown to avoid backplane bus disruption.

Q: What is the typical backplane current load of this card? A: The card draws power directly from the PM/HPM backplane; exact current values are not specified but must be considered in chassis load planning.

Q: Is firmware upgrade compatibility required for operation? A: No, the card functions as a hardware modem interface and does not require firmware updates.

Field Installation Guidelines

• 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.