{"product_id":"honeywell-ssd-d08g-4500-digital-i-o-cards","title":"Honeywell SSD-D08G-4500 Digital I\/O Cards","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell SSD-D08G-4500\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSSD-D08G-4500\u003c\/strong\u003e Digital I\/O Card, operates as a dedicated hardware component for high-density discrete signal processing and multi-protocol network routing within Honeywell control system environments. Configured to manage physical signal states, this board directly interfaces digital field devices, translating 16 independent input states and driving 16 independent output loops into synchronized control variables across standard backplane buses. The assembly enforces hardware isolation and execution logic to maintain real-time process monitoring across industrial automation networks.\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\u003eSSD-D08G-4500\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\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e135 mm x 87 mm x 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12-24 VDC system bus powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEPNI2 I\/O Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Configuration\u003c\/td\u003e\n\u003ctd\u003e16 discrete digital input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Configuration\u003c\/td\u003e\n\u003ctd\u003e16 discrete digital output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eModbus TCP\/IP, DeviceNet, CANopen\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; Multi-Protocol Gateway Boundaries\u003c\/h3\u003e\n\u003cp\u003eThe SSD-D08G-4500 integrates multi-layer PCB shielding and galvanic isolation to maintain signal purity in mixed-signal DCS environments. While managing 12-24 VDC discrete digital logic tracks, the board's internal ground planes suppress high-frequency switching transients, preventing noise coupling into adjacent 4-20 mA HART loop protocol lines within shared wireways. The onboard processing architecture routes field data simultaneously across Modbus TCP\/IP, DeviceNet, and CANopen protocols. High-velocity optical isolation barriers maintain channel-to-channel isolation, protecting backplane logic from ground loops and field-side electrical surges.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the SSD-D08G-4500 execute simultaneous Modbus TCP\/IP and DeviceNet communication without packet arbitration delays?\u003c\/p\u003e\n\u003cp\u003eA: The board utilizes an integrated communication co-processor that decouples the Ethernet-based Modbus TCP\/IP stack from the CAN-based DeviceNet and CANopen transceivers. Discrete input states are updated to a dual-port RAM structure, allowing concurrent polling across all configured network interfaces.\u003c\/p\u003e\n\u003cp\u003eQ: What thermal considerations apply when operating the board at maximum I\/O load near +60 deg C?\u003c\/p\u003e\n\u003cp\u003eA: Driving all 16 digital output channels simultaneously under full load increases internal thermal dissipation. While rated for operation up to +60 deg C, maintaining designated cabinet clearance gaps is necessary to ensure adequate convective air flow across the circuit board components.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAlign the board edges with the card cage guide rails and insert the module firmly into the backplane connector socket until fully seated.\u003c\/li\u003e\n\u003cli\u003eSecure all mechanical retaining screws on the front panel to bond the module ground plane directly to the rack enclosure chassis.\u003c\/li\u003e\n\u003cli\u003eRoute 12-24 VDC digital I\/O conductors through separate wireways, isolated from low-level analog sensor cables and high-voltage AC power lines.\u003c\/li\u003e\n\u003cli\u003eTerminate network shield drain wires directly at the central enclosure earth ground bar using low-impedance grounding clamps.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53625210339637,"sku":"SSD–D08G-4500","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/SSD_D08G-4500.png?v=1790046638","url":"https:\/\/www.5gplc.com\/products\/honeywell-ssd-d08g-4500-digital-i-o-cards","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}