{"product_id":"schneider-electric-172jnn21032-modicon-momentum-serial-link-option-adaptor","title":"Schneider Electric 172JNN21032 Modicon Momentum Serial Link Option Adaptor","description":"\u003cp\u003eThe \u003cstrong\u003eSchneider Electric 172JNN21032\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e172JNN21032\u003c\/strong\u003e Serial Link Option Adaptor, operates as a dedicated hardware component for single-port RS232 or RS485 serial communication processing within Modicon Momentum automation platform systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003e172JNN21032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSchneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eFrance \/ Global Operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e85.05 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e143.1 mm x 25 mm x 60.06 mm\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\u003e700 mA at 12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC (+\/- 5%) via I\/O base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e1 port (RS232 or RS485 selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Interface\u003c\/td\u003e\n\u003ctd\u003e1 x 9-pin D-shell connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal-Time Clock Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 13 s\/day drift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Battery Type\u003c\/td\u003e\n\u003ctd\u003eLithium battery, 2\/3 AA size (5-year life)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP20 conforming to IEC 529\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Coating\u003c\/td\u003e\n\u003ctd\u003eConformal coating Humiseal 1A33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003eLexan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Backplane Communication \u0026amp; Fieldbus Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe 172JNN21032 handles serial payload translation across deterministic backplane networks, providing a direct interface between the Modicon Momentum I\/O base and serial field infrastructure. Backplane bus communication velocity and protocol translation latencies are maintained through hardware-level buffer management. The module supports point-to-point RS232 signaling or multi-drop RS485 topology options via its DB9 interface. Integrated real-time clock functionality relies on a dedicated lithium backup source, maintaining system timestamps during primary power dropouts without backplane bus degradation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the 172JNN21032 draw internal operational power?\u003c\/p\u003e\n\u003cp\u003eA: The adapter receives its primary 5 VDC logic power directly through the underlying Modicon Momentum I\/O base bus connection, drawing up to 700 mA at 12 VDC during active operational cycles.\u003c\/p\u003e\n\u003cp\u003eQ: What happens to clock tracking when the base power is removed?\u003c\/p\u003e\n\u003cp\u003eA: An internal 2\/3 AA lithium battery maintains real-time clock operation during power outages, providing up to 30 days of autonomous clock retention after a battery-low state is flagged at 40 deg C.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the option adapter directly onto the designated Modicon Momentum base unit slot. Ensure field wiring connected to the 9-pin D-shell interface adheres to RS232 or RS485 differential distance limitations. Standard industrial shielding procedures require grounding the cable braid to the DB9 connector shell to prevent EMI interference. Maintain minimum clearance around the module assembly to allow passive thermal dissipation across the 0 to 60 deg C operating range.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":50014924931314,"sku":"172JNN21032","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/172JNN210322.jpg?v=1788340340","url":"https:\/\/www.petrospare.com\/products\/schneider-electric-172jnn21032-modicon-momentum-serial-link-option-adaptor","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}