Product Details
The Honeywell 51304493-200, also cataloged as the 51304493 PM Modem Board, operates as a dedicated hardware component for high-speed modem signal conversion and serial interface execution within Honeywell TDC 3000 Process Manager (PM) and Advanced Process Manager (APM) architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51304493-200 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 1.13 lbs (0.51 kg) |
| Dimensions | Standard PM/APM card slot form factor |
| Operating Temp | 0 deg C to +60 deg C |
| Power Consumption | Backplane powered via PM chassis bus |
| Module Type | Advanced Process Manager Modem Card / Add-On Board |
| System Architecture | TDC 3000 / PM / APM Systems |
| Physical Form Factor | Printed Circuit Board (PCB) Assembly |
FOUNDATION Fieldbus and Loop Wiring Channel Isolation
The modem board uses galvanically isolated signal channels to interface with field communication trunks and controller backplanes. In processing nodes managing multi-drop 4-20 mA HART loop protocol instruments or digital field networks, the circuit architecture maintains strict channel-to-channel isolation. This physical dielectric boundary suppresses high-frequency common-mode noise, prevents ground loop circulation across redundant I/O racks, and safeguards internal bus logic from field-side voltage spikes.
Frequently Asked Questions
Q: Can the 51304493-200 modem board be hot-swapped while the Process Manager rack is under power?
A: No, online insertion or removal of the modem board requires powering down the local card slot or putting the primary node in an isolated maintenance state to prevent backplane signal corruption and current transients.
Q: How does the board handle signal interference across adjacent communication channels?
A: Integrated transformer coupling and channel-to-channel isolation barriers eliminate physical ground loops and filter out electromagnetic interference (EMI) originating from external wiring runs.
Field Installation Guidelines
- Electrostatic Discharge Protection: Wear a grounded ESD wrist strap attached to the cabinet chassis frame before removing the board from its anti-static shielding sleeve.
- Slot Alignment & Insertion: Align the printed circuit board edges with the chassis card guides, pushing firmly until the rear edge connectors seat completely into the backplane receptacle.
- Card Retention: Tighten the top and bottom captive thumbscrews to secure the board against cabinet vibration and ensure consistent frame ground contact.
- Cable Strain Relief: Ensure all serial and modem interface cables attached to the front faceplate are routed through cabinet cable channels with sufficient strain relief to prevent pin deflection.
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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