{"product_id":"honeywell-621-9940c-ipc-620-serial-input-output-module","title":"Honeywell 621-9940C IPC 620 Serial Input Output Module","description":"\u003cdiv class=\"qk-md-paragraph qk-md-has-multi-modal\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 621-9940C\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e621-9940C\u003c\/strong\u003e Serial Input \/ Output Module, operates as a dedicated hardware component for multi-channel serial data transmission and peripheral interfacing within Honeywell IPC 620 PLC system racks.\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\u003e621-9940C\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\u003e0.86 kg (1.90 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard IPC 620 rack-slot form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eRack backplane driven (5 VDC \/ 24 VDC internal rails)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Capacity\u003c\/td\u003e\n\u003ctd\u003e12 Serial I\/O Ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSerial Communications \/ Interface Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eIPC 620 backplane connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel Isolation and Process Loop Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe 621-9940C serial communication assembly features onboard channel-to-channel and bus-to-field galvanic isolation to protect central IPC 620 processor units from ground potential offsets and high-voltage line spikes. Designed for multi-drop serial topology management, the hardware incorporates differential noise filtering and transient voltage suppression across all 12 serial interface channels to preserve signal transmission integrity in high-EMI industrial environments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 621-9940C module support live insertion into an active IPC 620 rack chassis?\u003c\/p\u003e\n\u003cp\u003eA: No. Power to the IPC 620 rack backplane must be completely isolated before inserting or removing the 621-9940C card to prevent edge connector damage and bus execution faults.\u003c\/p\u003e\n\u003cp\u003eQ: How are serial communication status and diagnostic faults indicated on the hardware?\u003c\/p\u003e\n\u003cp\u003eA: Front panel ACTIVE and FAULT\/PASS LED indicators provide real-time operational status, indicating active data frame transfers or hardware-level communication errors.\u003c\/p\u003e\n\u003cp\u003eQ: What grounding procedure must be observed during installation in noisy enclosure environments?\u003c\/p\u003e\n\u003cp\u003eA: The card metal front panel and shield connections must bond securely to the main IPC 620 rack chassis earth ground to maintain proper noise shielding across all 12 serial channels.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation\u003c\/strong\u003e: Disconnect main power to the IPC 620 system rack prior to inserting the module into the designated backplane slot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCard Insertion\u003c\/strong\u003e: Align the PCB edge guides with the rack card channels and slide the module firmly into the slot until the backplane connector seats completely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Securing\u003c\/strong\u003e: Tighten the top and bottom captive thumbscrews to hand-tight torque to secure the card and ensure continuous chassis grounding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielded Cabling\u003c\/strong\u003e: Route all serial communications wiring using high-grade shielded twisted-pair cables, maintaining a minimum physical clearance of 50 mm from high-voltage AC conductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch2\u003eHoneywell 621-9940C IPC 620 Serial Input Output Module\u003c\/h2\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eHoneywell 621-9940C\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e621-9940C\u003c\/strong\u003e Serial Input \/ Output Module, operates as a dedicated hardware component for multi-channel serial data transmission and peripheral interfacing within Honeywell IPC 620 PLC system racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\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\u003e621-9940C\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\u003e0.86 kg (1.90 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard IPC 620 rack-slot form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eRack backplane driven (5 VDC \/ 24 VDC internal rails)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Capacity\u003c\/td\u003e\n\u003ctd\u003e12 Serial I\/O Ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSerial Communications \/ Interface Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eIPC 620 backplane connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eChannel Isolation and Process Loop Signal Integrity\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe 621-9940C serial communication assembly features onboard channel-to-channel and bus-to-field galvanic isolation to protect central IPC 620 processor units from ground potential offsets and high-voltage line spikes. Designed for multi-drop serial topology management, the hardware incorporates differential noise filtering and transient voltage suppression across all 12 serial interface channels to preserve signal transmission integrity in high-EMI industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003eQ: Does the 621-9940C module support live insertion into an active IPC 620 rack chassis?\u003c\/li\u003e\n\u003cli\u003eA: No. Power to the IPC 620 rack backplane must be completely isolated before inserting or removing the 621-9940C card to prevent edge connector damage and bus execution faults.\u003c\/li\u003e\n\u003cli\u003eQ: How are serial communication status and diagnostic faults indicated on the hardware?\u003c\/li\u003e\n\u003cli\u003eA: Front panel ACTIVE and FAULT\/PASS LED indicators provide real-time operational status, indicating active data frame transfers or hardware-level communication errors.\u003c\/li\u003e\n\u003cli\u003eQ: What grounding procedure must be observed during installation in noisy enclosure environments?\u003c\/li\u003e\n\u003cli\u003eA: The card metal front panel and shield connections must bond securely to the main IPC 620 rack chassis earth ground to maintain proper noise shielding across all 12 serial channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation\u003c\/strong\u003e: Disconnect main power to the IPC 620 system rack prior to inserting the module into the designated backplane slot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCard Insertion\u003c\/strong\u003e: Align the PCB edge guides with the rack card channels and slide the module firmly into the slot until the backplane connector seats completely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Securing\u003c\/strong\u003e: Tighten the top and bottom captive thumbscrews to hand-tight torque to secure the card and ensure continuous chassis grounding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielded Cabling\u003c\/strong\u003e: Route all serial communications wiring using high-grade shielded twisted-pair cables, maintaining a minimum physical clearance of 50 mm from high-voltage AC conductors.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52751439495448,"sku":"621-9940C","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/621-9940C3_Cocoai_abbbfb87-d622-42a8-8840-c432fa52bdd3.jpg?v=1790150077","url":"https:\/\/www.innoplcsync.com\/products\/honeywell-621-9940c-ipc-620-serial-input-output-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}