{"product_id":"honeywell-51304493-200-pm-modem-board","title":"HONEYWELL 51304493-200 PM Modem Board","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 51304493-200\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51304493\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51304493-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.13 lbs (0.51 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard PM\/APM card slot form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane powered via PM chassis bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAdvanced Process Manager Modem Card \/ Add-On Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Architecture\u003c\/td\u003e\n\u003ctd\u003eTDC 3000 \/ PM \/ APM Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Form Factor\u003c\/td\u003e\n\u003ctd\u003ePrinted Circuit Board (PCB) Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFOUNDATION Fieldbus and Loop Wiring Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 51304493-200 modem board be hot-swapped while the Process Manager rack is under power?\u003c\/p\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003cp\u003eQ: How does the board handle signal interference across adjacent communication channels?\u003c\/p\u003e\n\u003cp\u003eA: Integrated transformer coupling and channel-to-channel isolation barriers eliminate physical ground loops and filter out electromagnetic interference (EMI) originating from external wiring runs.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Discharge Protection:\u003c\/strong\u003e Wear a grounded ESD wrist strap attached to the cabinet chassis frame before removing the board from its anti-static shielding sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Alignment \u0026amp; Insertion:\u003c\/strong\u003e Align the printed circuit board edges with the chassis card guides, pushing firmly until the rear edge connectors seat completely into the backplane receptacle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCard Retention:\u003c\/strong\u003e Tighten the top and bottom captive thumbscrews to secure the board against cabinet vibration and ensure consistent frame ground contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Strain Relief:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53581549109557,"sku":"51304493-200","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51304493-200_Cocoai.png?v=1789440954","url":"https:\/\/www.5gplc.com\/products\/honeywell-51304493-200-pm-modem-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}