{"id":"abb-user-drawing-2105859-tfio-comm-interface-module-2100421-rs-485-generic-pinout-990638386e","name":"User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout","manufacturer":"ABB","category":"automation","description":"ABB User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout: instrumentation or control-connection reference for instrument and control-system connections. Manufacturer reference UD/2105859.","equipment":["User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout"],"keywords":["User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout","","UD/2105859 / 2105859","Unclassified electrical reference","instrumentation","instrument and control-system connections","instrumentation or control-connection reference","UD/2105859"],"markets":["Global"],"marketNote":"Confirm the exact regional configuration against the selected manufacturer drawing.","kind":"drawing","sourceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B","officialEvidenceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B","sourcePublisher":"ABB","formats":["PDF"],"availability":"direct","accessNote":"1 original file is available to download here. Manufacturer sources and revisions are listed below.","checkedAt":"2026-11-04","files":[{"id":"ec418224a4bf627d305f","name":"UD/2105859.pdf","format":"PDF","purpose":"Manufacturer drawing reference UD/2105859","url":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B","availability":"direct","sha256":"ec418224a4bf627d305f69852e958db58a8c3444b637f478057eaed5d08d5a16","bytes":62358,"retrievedAt":"2026-11-04T00:26:31Z","filenameBasis":"document-reference","revision":"B","hosted":true,"redistribution":"unknown","validation":"signature-checked","documentNumber":"UD/2105859","latestRevisionUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch","rightsReview":{"checkedAt":"2026-11-04","sources":["https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B"],"note":"Reviewed the available source, embedded drawing text and archive notices. No explicit applicable redistribution prohibition was identified. Rights remain unknown; no licence or manufacturer endorsement is asserted."},"hostingBasis":{"policy":"no-explicit-prohibition","checkedAt":"2026-11-04","evidenceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B","attribution":"ABB"},"delivery":{"kind":"original","name":"UD/2105859.pdf","format":"PDF","sha256":"ec418224a4bf627d305f69852e958db58a8c3444b637f478057eaed5d08d5a16","bytes":62358,"includes":["UD/2105859.pdf"]},"downloadUrl":"https://eloragrid.ai/tools/cad-library/download/abb-user-drawing-2105859-tfio-comm-interface-module-2100421-rs-485-generic-pinout-990638386e/ec418224a4bf627d305f"}],"fileClasses":["manufacturer PDF reference"],"configurationNote":"Manufacturer reference UD/2105859 identifies this instrumentation or control-connection reference.","technicalFacts":[{"label":"Manufacturer reference","value":"UD/2105859","sourceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B"},{"label":"Document revision","value":"B","sourceUrl":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B"}],"drawingNumber":"UD/2105859","equipmentFacts":[{"label":"Equipment / resource","value":"User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout"},{"label":"Manufacturer","value":"ABB"},{"label":"Resource type","value":"Named drawing reference"},{"label":"Manufacturer drawing","value":"UD/2105859"},{"label":"Manufacturer reference","value":"UD/2105859"},{"label":"Document revision","value":"B"},{"label":"Listed file formats","value":"PDF"},{"label":"Listed files","value":"1"},{"label":"Available previews","value":"1 drawing previews"},{"label":"Recorded revisions","value":"B"},{"label":"Source checked","value":"2026-11-04"},{"label":"Download access","value":"Email registration for site downloads; official source links are also available"}],"previewImage":"/tools/cad-library/drawing-preview/abb-user-drawing-2105859-tfio-comm-interface-module-2100421-rs-485-generic-pinout-990638386e/ec418224a4bf627d305f?asset=8fc66c080e00961a7827897b9fb80f2c11c50e5394cff849f2f326ef57e5e272","relatedReferences":[{"name":"PLC CPU module","url":"https://eloragrid.ai/objects/ga-plc-cpu-module"},{"name":"HMI touchscreen","url":"https://eloragrid.ai/objects/ga-hmi-touchscreen"}],"fileChoiceGuidance":["Use UD/2105859.pdf revision B to read the original manufacturer sheet and its annotations."],"plainEnglish":{"title":"Using the User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout reference","introduction":"ABB User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout: instrumentation or control-connection reference for instrument and control-system connections. Manufacturer reference UD/2105859.","example":"Use UD/2105859.pdf revision B to read the original manufacturer sheet and its annotations.","drawings":"Use UD/2105859.pdf revision B to read the original manufacturer sheet and its annotations.","terms":[],"diagram":"flow","steps":["Identify User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout","Select the drawing or model","Check the mounting interface"],"caption":"Manufacturer reference UD/2105859 identifies this instrumentation or control-connection reference.","sources":[{"label":"ABB source","url":"https://search.abb.com/library/Download.aspx?DocumentID=UD%2F2105859&LanguageCode=en&DocumentPartId=2105859&Action=Launch&DocumentRevisionId=B"}],"questions":[{"question":"What can I use the User drawing - 2105859 TFIO COMM Interface Module (2100421) RS-485 Generic Pinout reference for?","answer":"Use this instrumentation or control-connection reference for instrument and control-system connections. Keep the instrument, board and signal configuration named on the sheet. A signal connection drawing does not give an equipment mounting footprint or define a complete control system."},{"question":"Which manufacturer reference identifies this drawing?","answer":"ABB reference UD/2105859. The file list retains the original source and recorded revision."}],"checklist":["Keep the instrument, board and signal configuration named on the sheet. A signal connection drawing does not give an equipment mounting footprint or define a complete control system."]},"canonicalUrl":"https://eloragrid.ai/tools/cad-library/equipment/abb-user-drawing-2105859-tfio-comm-interface-module-2100421-rs-485-generic-pinout-990638386e"}