{"product_id":"digital-input-output-module-foxboro-p0914hjb","title":"Digital Input\/Output Module | Foxboro P0914HJB","description":"\u003ch2\u003eFoxboro P0914HJB Digital Input\/Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFoxboro P0914HJB\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eP0914HJB\u003c\/strong\u003e Digital Input\/Output Module, operates as a dedicated hardware component for discrete signal processing within Foxboro I\/A Series distributed control systems. The unit manages incoming 24 VDC switch statuses and drives external relay actuators concurrently, translating field-level discrete states into internal binary registers across the backplane data bus.\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\u003eP0914HJB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFoxboro\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\u003e0.63 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.3 x 9.8 x 5.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e4.0 W nominal from system bus rails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input\/Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003e16 digital input and 16 digital output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; 4-20 mA HART Loop Protocols\u003c\/h3\u003e\n\u003cp\u003eThe internal circuitry incorporates galvanic channel-to-channel isolation barriers to prevent ground loops and high-voltage electrical transients from transferring between connected field sensors and the central controller backplane. Although primarily configured for discrete switching tasks, the module architecture supports mixed-signal coexistence within the same rack layout. This isolation design guarantees measurement stability and protects internal logic components against external common-mode voltage surges across extensive industrial cabling runs.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module handle output states during a controller communication fault?\u003c\/p\u003e\n\u003cp\u003eA: Upon losing connection with the primary controller node, internal watchdog timers force output channels into pre-configured fail-safe states to prevent erratic field device behavior.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module be inserted or removed while the system is powered on?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping capabilities depend on the specific backplane revision and enclosure configuration; technicians must verify slot-level power isolation before extracting the hardware to prevent bus communication disruptions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEngineers must follow rigorous physical and electrical procedures during site installation:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eSecure the modular assembly firmly onto a grounded mounting plate within a protective industrial control enclosure, ensuring proper alignment with the backplane connector pins.\u003c\/li\u003e\n\u003cli\u003eRoute low-voltage signal cables through dedicated metallic conduits, maintaining strict physical separation from high-voltage AC power lines and inverter drives to eliminate electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eTerminate all shielded cable drain wires directly to the designated enclosure grounding bar using low-impedance metallic clamps to preserve signal integrity.\u003c\/li\u003e\n\u003cli\u003eVerify that all terminal block screws are torqued precisely to manufacturer specifications prior to energizing the system power supplies.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"FOXBORO","offers":[{"title":"Default Title","offer_id":51286484549944,"sku":"P0914HJB","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/P0914HJB.jpg?v=1761636128","url":"https:\/\/www.automodulexpert.com\/products\/digital-input-output-module-foxboro-p0914hjb","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}