{"id":823,"date":"2026-05-21T11:00:00","date_gmt":"2026-05-21T03:00:00","guid":{"rendered":"https:\/\/web.neoedgecentral.com\/?p=823"},"modified":"2026-05-21T11:05:16","modified_gmt":"2026-05-21T03:05:16","slug":"serial-port-interface-configuration","status":"publish","type":"post","link":"https:\/\/www.ecloudedge.com\/en\/serial-port-interface-configuration\/","title":{"rendered":"How to configure a serial port interface"},"content":{"rendered":"<p class=\"wp-block-paragraph\">When the Gateway needs to read data from OT devices via the serial port, correctly configuring the Gateway's serial port is the first thing you need to focus on.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gateway serial port configuration can be divided into two stages:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Configure Communication Interface Type (RS-232, RS-422, RS-485)<br>The communication interface type requires the firmware or software provided by the Gateway manufacturer. This article will explain how to configure it.<\/li>\n\n\n\n<li>Configure communication transmission specifications (e.g., Baud Rate, Start Character, Stop Character)<br>Communication transmission specifications can be configured through Gateway Management in NeoEdge Central. Please refer to the YouTube tutorial video.\n<ul class=\"wp-block-list\">\n<li><\/li>\n\n\n\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=5TsqpMFJhYo&amp;list=PLUAJDbJOOHqzpqJ9g9IN0j4ClaQMbtXE8&amp;index=7\" data-type=\"link\" data-id=\"https:\/\/www.youtube.com\/watch?v=7yFzKXjZ9Sk&amp;list=PLUAJDbJOOHqzpqJ9g9IN0j4ClaQMbtXE8&amp;index=3\" rel=\"nofollow noopener\" target=\"_blank\">Gateway Management<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">Configure communication interface type (RS-232, RS-422, RS-485) via BIOS settings<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Most industrial computer manufacturers only allow communication interface types to be changed via BIOS, which means that before a Gateway is deployed to an OT site, you need to confirm that the serial port communication interface of each Gateway has been correctly configured.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Step 1, restart the Gateway, enter BIOS settings<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Step 2, select Advanced from the main menu to enter the Advanced settings (most BIOSes categorize serial port settings under Advanced).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Step 3, select iManager Configuration or Super IO Configuration (different BIOS versions may have different entry points).<\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-5dc7d5b\" data-block-id=\"5dc7d5b\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-5dc7d5b-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-bb7d79f\" data-v=\"4\" data-block-id=\"bb7d79f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-bb7d79f-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-bb7d79f-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-919451d\" data-block-id=\"919451d\"><style>.stk-919451d .stk-img-wrapper{width:100% !important;height:200px !important;}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-826\" src=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_2-2.webp\" width=\"513\" height=\"398\" srcset=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_2-2.webp 513w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_2-2-300x233.webp 300w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_2-2-15x12.webp 15w\" sizes=\"auto, (max-width: 513px) 100vw, 513px\" \/><\/span><\/figure><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6d10d4d\" data-v=\"4\" data-block-id=\"6d10d4d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-6d10d4d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-6d10d4d-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-16d6970\" data-block-id=\"16d6970\"><style>.stk-16d6970 .stk-img-wrapper{width:74% !important;height:200px !important;}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1067\" src=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-Advanced.jpg\" width=\"500\" height=\"268\" srcset=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-Advanced.jpg 500w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-Advanced-300x161.jpg 300w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-Advanced-18x10.jpg 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/span><\/figure><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Step 4, select Serial Port ID (1,2\u2026), change settings<\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-cc0a8c4\" data-block-id=\"cc0a8c4\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-cc0a8c4-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e45baed\" data-v=\"4\" data-block-id=\"e45baed\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e45baed-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e45baed-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-16b5edf\" data-block-id=\"16b5edf\"><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-828\" src=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_4-2.webp\" width=\"513\" height=\"398\" srcset=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_4-2.webp 513w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_4-2-300x233.webp 300w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/configure_serial_ports_4-2-15x12.webp 15w\" sizes=\"auto, (max-width: 513px) 100vw, 513px\" \/><\/span><\/figure><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e2bf7b1\" data-v=\"4\" data-block-id=\"e2bf7b1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e2bf7b1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e2bf7b1-inner-blocks\">\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-bba70ce\" data-block-id=\"bba70ce\"><style>.stk-bba70ce .stk-img-wrapper{width:74% !important;height:200px !important;}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-827\" src=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-iManager-Setup.jpg\" width=\"500\" height=\"281\" srcset=\"https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-iManager-Setup.jpg 500w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-iManager-Setup-300x169.jpg 300w, https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/BIOS-iManager-Setup-18x10.jpg 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/span><\/figure><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Through software, set communication interface type (RS-232, RS-422, RS-485)<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">A few industrial computer manufacturers (e.g., Moxa) offer software utilities that allow you to change settings from the operating system. When combined with NeoEdge Central remote login, you can change serial port communication interface types as needed, at any time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Step 1, download <a href=\"https:\/\/www.moxa.com\/getmedia\/bf07835c-fdca-43c2-8879-0eaa24bdcd4d\/moxa-industrial-linux-3-debian-11-manual-with-security-hardening-guide-v1.0.pdf\" data-type=\"link\" data-id=\"https:\/\/www.moxa.com\/getmedia\/bf07835c-fdca-43c2-8879-0eaa24bdcd4d\/moxa-industrial-linux-3-debian-11-manual-with-security-hardening-guide-v1.0.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Moxa Industrial Linux User Manual<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Step 2, Configure using MCIM (Moxa Computer Interface Manager)<\/p>\n\n\n\n<pre class=\"wp-block-code has-small-font-size\"><code>$ mx-interface-mgmt serialport                             # List all serial ports\n$ mx-interface-mgmt serialport            # Show detailed information\n$ mx-interface-mgmt serialport  set_interface   # Set interface<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>\u7576 Gateway \u9700\u8981\u7d93\u7531\u5e8f\u5217\u57e0\u5411 OT \u8a2d\u5099\u8b80\u53d6\u8cc7\u6599\u6642\uff0c\u6b63\u78ba\u7684\u8a2d\u5b9a Gateway \u7684\u5e8f\u5217\u57e0\u662f\u60a8\u8981\u95dc\u6ce8\u7684\u7b2c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":824,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-support-documents"],"blocksy_meta":[],"uagb_featured_image_src":{"full":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort.jpg",870,400,false],"thumbnail":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort-150x150.jpg",150,150,true],"medium":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort-300x138.jpg",300,138,true],"medium_large":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort-768x353.jpg",768,353,true],"large":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort.jpg",870,400,false],"1536x1536":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort.jpg",870,400,false],"2048x2048":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort.jpg",870,400,false],"trp-custom-language-flag":["https:\/\/www.ecloudedge.com\/wp-content\/uploads\/2024\/11\/SerialPort-18x8.jpg",18,8,true]},"uagb_author_info":{"display_name":"kevinkao","author_link":"https:\/\/www.ecloudedge.com\/en\/author\/kevinkao\/"},"uagb_comment_info":0,"uagb_excerpt":"\u7576 Gateway \u9700\u8981\u7d93\u7531\u5e8f\u5217\u57e0\u5411 OT \u8a2d\u5099\u8b80\u53d6\u8cc7\u6599\u6642\uff0c\u6b63\u78ba\u7684\u8a2d\u5b9a Gateway \u7684\u5e8f\u5217\u57e0\u662f\u60a8\u8981\u95dc\u6ce8\u7684\u7b2c&hellip;","_links":{"self":[{"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/posts\/823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/comments?post=823"}],"version-history":[{"count":3,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/posts\/823\/revisions"}],"predecessor-version":[{"id":1068,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/posts\/823\/revisions\/1068"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/media\/824"}],"wp:attachment":[{"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/media?parent=823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/categories?post=823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecloudedge.com\/en\/wp-json\/wp\/v2\/tags?post=823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}