{"id":8934551257241,"title":"Single Mode ST Gigabit Fiber Media Converter to Ethernet RJ45, 20km\/12.4mi | 1310nm dual-fiber, built-in ST module - copper Cat5e or Cat6, auto-sensing 10\/100\/1000, jumbo frame, LLF, cord in box","handle":"single-mode-st-gigabit-fiber-media-converter-to-ethernet-rj45-20km-12-4mi-1310nm-dual-fiber-built-in-st-module-copper-cat5e-or-cat6-auto-sensing-10-100-1000-jumbo-frame-llf-cord-in-box","description":"\u003ch3\u003eSingle Mode ST Gigabit Fiber Media Converter to Ethernet RJ45, 20km\/12.4mi | 1310nm dual-fiber, built-in ST module - copper Cat5e or Cat6, auto-sensing 10\/100\/1000, jumbo frame, LLF, cord in box\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eExtend your Gigabit or Fast Ethernet Network Over Single Mode Fiber Up to 20\nkm With Ease AN-UMGSM-AS-20J-ST Will Automatically Detect 10 Mbit\/s or 100\nMbit\/s Fast Ethernet or 1000 Mbit\/s Gigabit port - You just need plug in the\ncables and it will work right away! Powering it up? Easy, it will come with AC\npower adapter in set, just plug it! All These Important Features Are All\nSupported:Compliant with IEEE 1000Base-T and 1000Base-LXOne 10\/100\/1000Base-T\nRJ-45 port autosensing featuredOne 1000Base-LX Single Mode Dual Fiber port\nPort with ST type connector - up to 20 km distanceStatus LED indicators for\nPower, Link\/Activity, Full-Duplex, and SpeedStandards: IEEE802.3z\/ab\n100\/1000\/1000Base-T 1000Base-LXPower supply: 100 to 240VAC 50 to\n60HzDimensions: 70.5mm(L)X94mm(W)X26.5mm(H)Environment: Relative humidity; 5%\nto 90%Operating temperature: 0 to 70 degree celsius CE, FCC, ROHS, LVD\ncertified Supports Jumbo Ethernet frames up to 9000 bytes (if needed,\nconfigurable by dip switches) Supports LLF feature - Link Loss Feature - (if\nneeded, configurable by dip switches) Media converter will extend Your LAN\nnetwork with any standard Ethernet interface to distances with 2 km or less -\nyou no need to use attenuator also for significantly less distances than 2 km\nas well. Setup of these units are really easy as the 3 steps shown in picture\ngallery, and all default settings will work for all of your cases, but for\nsophisticated users we had created some more customized settings available via\ndip switches on unit's back panel. It's always good to have versatile and\nadaptive unit to all Your cases! Questions during installation? Questions\nduring considering a purchase? We are always here to answer You and guide You\nthrough!\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eSINGLE MODE ST, 20 km (12.4 miles) OVER 1310nm FIBER: converts Gigabit Ethernet to single-mode ST fiber and back, for building-to-building, campus and site-to-site runs. Dual-fiber (separate TX and RX strands) - the ST module is built into the unit and factory-aligned, nothing to fit or match.\u003c\/li\u003e\n \u003cli\u003eSupports Dual Speed Fiber Mode (configurable by dip switch) Select 1000Base-LX or 100Base-LX interconnecting with existing fiber nodes is easy with this media converter. Wavelength 1310nm, Use it with Single Mode Fiber Only.\u003c\/li\u003e\n \u003cli\u003eAUTO-SENSING 10\/100\/1000 COPPER: the RJ-45 port negotiates speed and duplex automatically, so it links to whatever switch, router, NAS, PC or IP camera you connect. Works with Cat5e or Cat6 copper. Jumbo frame support up to 9000 bytes for full throughput on file and backup traffic.\u003c\/li\u003e\n \u003cli\u003ePLUG AND PLAY, WITH ROOM TO ADJUST: it works out of the box - connect fiber and RJ-45 and the link comes up, no software, no drivers, nothing to configure. In the rare case you want more control, four DIP switches let you turn Link Loss Forwarding on or off, enable broadcast storm control, or drop the fiber port to 100Base-FX for older Fast Ethernet gear.\u003c\/li\u003e\n \u003cli\u003eBUY TWO FOR A FIBER RUN: use ONE if the far end already has a single-mode ST fiber port on a switch. Use TWO, one at each end, to join two copper devices over a fiber run. Ships with a 1m Cat5e patch cord so the copper side is ready out of the box.\u003c\/li\u003e\n \u003cli\u003eBUILT FOR THE JOB: fanless with no moving parts, desktop or wall mount, standard AC power. Works with any IEEE 802.3 switch, router or NIC - no drivers, no configuration, no management software.\u003c\/li\u003e\n \u003cli\u003eSINGLE MODE ONLY - CHECK YOUR FIBER: the fiber side is 1310nm single-mode with a built-in ST connector, and needs two strands (dual-fiber). It will NOT link over multimode fiber, over a single strand, or with a different connector type - pick the matching model if your run differs.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-08-26T22:22:06+10:00","created_at":"2026-08-26T21:12:56+10:00","vendor":"ADnet","type":"Network Transceivers","tags":["electronics_selected_Aug2026"],"price":31900,"price_min":31900,"price_max":31900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48937217786009,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B07DWXNVV9","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Single Mode ST Gigabit Fiber Media Converter to Ethernet RJ45, 20km\/12.4mi | 1310nm dual-fiber, built-in ST module - copper Cat5e or Cat6, auto-sensing 10\/100\/1000, jumbo frame, LLF, cord in box","public_title":null,"options":["Default Title"],"price":31900,"weight":431,"compare_at_price":null,"inventory_management":"shopify","barcode":"AN-UMGSM-AS-20J-ST","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/soundstores.net\/cdn\/shop\/files\/B07DWXNVV9.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/81vmXvPrCDL.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/91e0_-7S9dL.jpg?v=1787742779","\/\/soundstores.net\/cdn\/shop\/files\/71Nr8ThJDEL.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/81XM7wkAmxL.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/81QR_UIbhfL.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/51c7OZY0s7L.jpg?v=1787742778","\/\/soundstores.net\/cdn\/shop\/files\/71infVQfomL.jpg?v=1787742778"],"featured_image":"\/\/soundstores.net\/cdn\/shop\/files\/B07DWXNVV9.jpg?v=1787742778","options":["Title"],"media":[{"alt":null,"id":37278862770329,"position":1,"preview_image":{"aspect_ratio":1.657,"height":892,"width":1478,"src":"\/\/soundstores.net\/cdn\/shop\/files\/B07DWXNVV9.jpg?v=1787742778"},"aspect_ratio":1.657,"height":892,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/B07DWXNVV9.jpg?v=1787742778","width":1478},{"alt":null,"id":37278862803097,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/soundstores.net\/cdn\/shop\/files\/81vmXvPrCDL.jpg?v=1787742778"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/81vmXvPrCDL.jpg?v=1787742778","width":2000},{"alt":null,"id":37278862835865,"position":3,"preview_image":{"aspect_ratio":0.886,"height":2560,"width":2268,"src":"\/\/soundstores.net\/cdn\/shop\/files\/91e0_-7S9dL.jpg?v=1787742779"},"aspect_ratio":0.886,"height":2560,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/91e0_-7S9dL.jpg?v=1787742779","width":2268},{"alt":null,"id":37278862868633,"position":4,"preview_image":{"aspect_ratio":2.615,"height":979,"width":2560,"src":"\/\/soundstores.net\/cdn\/shop\/files\/71Nr8ThJDEL.jpg?v=1787742778"},"aspect_ratio":2.615,"height":979,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/71Nr8ThJDEL.jpg?v=1787742778","width":2560},{"alt":null,"id":37278862901401,"position":5,"preview_image":{"aspect_ratio":0.725,"height":2560,"width":1856,"src":"\/\/soundstores.net\/cdn\/shop\/files\/81XM7wkAmxL.jpg?v=1787742778"},"aspect_ratio":0.725,"height":2560,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/81XM7wkAmxL.jpg?v=1787742778","width":1856},{"alt":null,"id":37278862934169,"position":6,"preview_image":{"aspect_ratio":1.27,"height":1964,"width":2495,"src":"\/\/soundstores.net\/cdn\/shop\/files\/81QR_UIbhfL.jpg?v=1787742778"},"aspect_ratio":1.27,"height":1964,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/81QR_UIbhfL.jpg?v=1787742778","width":2495},{"alt":null,"id":37278862966937,"position":7,"preview_image":{"aspect_ratio":1.493,"height":821,"width":1226,"src":"\/\/soundstores.net\/cdn\/shop\/files\/51c7OZY0s7L.jpg?v=1787742778"},"aspect_ratio":1.493,"height":821,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/51c7OZY0s7L.jpg?v=1787742778","width":1226},{"alt":null,"id":37278862999705,"position":8,"preview_image":{"aspect_ratio":1.018,"height":1964,"width":2000,"src":"\/\/soundstores.net\/cdn\/shop\/files\/71infVQfomL.jpg?v=1787742778"},"aspect_ratio":1.018,"height":1964,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/71infVQfomL.jpg?v=1787742778","width":2000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eSingle Mode ST Gigabit Fiber Media Converter to Ethernet RJ45, 20km\/12.4mi | 1310nm dual-fiber, built-in ST module - copper Cat5e or Cat6, auto-sensing 10\/100\/1000, jumbo frame, LLF, cord in box\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eExtend your Gigabit or Fast Ethernet Network Over Single Mode Fiber Up to 20\nkm With Ease AN-UMGSM-AS-20J-ST Will Automatically Detect 10 Mbit\/s or 100\nMbit\/s Fast Ethernet or 1000 Mbit\/s Gigabit port - You just need plug in the\ncables and it will work right away! Powering it up? Easy, it will come with AC\npower adapter in set, just plug it! All These Important Features Are All\nSupported:Compliant with IEEE 1000Base-T and 1000Base-LXOne 10\/100\/1000Base-T\nRJ-45 port autosensing featuredOne 1000Base-LX Single Mode Dual Fiber port\nPort with ST type connector - up to 20 km distanceStatus LED indicators for\nPower, Link\/Activity, Full-Duplex, and SpeedStandards: IEEE802.3z\/ab\n100\/1000\/1000Base-T 1000Base-LXPower supply: 100 to 240VAC 50 to\n60HzDimensions: 70.5mm(L)X94mm(W)X26.5mm(H)Environment: Relative humidity; 5%\nto 90%Operating temperature: 0 to 70 degree celsius CE, FCC, ROHS, LVD\ncertified Supports Jumbo Ethernet frames up to 9000 bytes (if needed,\nconfigurable by dip switches) Supports LLF feature - Link Loss Feature - (if\nneeded, configurable by dip switches) Media converter will extend Your LAN\nnetwork with any standard Ethernet interface to distances with 2 km or less -\nyou no need to use attenuator also for significantly less distances than 2 km\nas well. Setup of these units are really easy as the 3 steps shown in picture\ngallery, and all default settings will work for all of your cases, but for\nsophisticated users we had created some more customized settings available via\ndip switches on unit's back panel. It's always good to have versatile and\nadaptive unit to all Your cases! Questions during installation? Questions\nduring considering a purchase? We are always here to answer You and guide You\nthrough!\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eSINGLE MODE ST, 20 km (12.4 miles) OVER 1310nm FIBER: converts Gigabit Ethernet to single-mode ST fiber and back, for building-to-building, campus and site-to-site runs. Dual-fiber (separate TX and RX strands) - the ST module is built into the unit and factory-aligned, nothing to fit or match.\u003c\/li\u003e\n \u003cli\u003eSupports Dual Speed Fiber Mode (configurable by dip switch) Select 1000Base-LX or 100Base-LX interconnecting with existing fiber nodes is easy with this media converter. Wavelength 1310nm, Use it with Single Mode Fiber Only.\u003c\/li\u003e\n \u003cli\u003eAUTO-SENSING 10\/100\/1000 COPPER: the RJ-45 port negotiates speed and duplex automatically, so it links to whatever switch, router, NAS, PC or IP camera you connect. Works with Cat5e or Cat6 copper. Jumbo frame support up to 9000 bytes for full throughput on file and backup traffic.\u003c\/li\u003e\n \u003cli\u003ePLUG AND PLAY, WITH ROOM TO ADJUST: it works out of the box - connect fiber and RJ-45 and the link comes up, no software, no drivers, nothing to configure. In the rare case you want more control, four DIP switches let you turn Link Loss Forwarding on or off, enable broadcast storm control, or drop the fiber port to 100Base-FX for older Fast Ethernet gear.\u003c\/li\u003e\n \u003cli\u003eBUY TWO FOR A FIBER RUN: use ONE if the far end already has a single-mode ST fiber port on a switch. Use TWO, one at each end, to join two copper devices over a fiber run. Ships with a 1m Cat5e patch cord so the copper side is ready out of the box.\u003c\/li\u003e\n \u003cli\u003eBUILT FOR THE JOB: fanless with no moving parts, desktop or wall mount, standard AC power. Works with any IEEE 802.3 switch, router or NIC - no drivers, no configuration, no management software.\u003c\/li\u003e\n \u003cli\u003eSINGLE MODE ONLY - CHECK YOUR FIBER: the fiber side is 1310nm single-mode with a built-in ST connector, and needs two strands (dual-fiber). It will NOT link over multimode fiber, over a single strand, or with a different connector type - pick the matching model if your run differs.\u003c\/li\u003e\n \u003c\/ul\u003e"}