{"product_id":"mitsubishi-electric-qj71lp21-25-link-unit-networking-module","title":"Mitsubishi Electric QJ71LP21-25 Link Unit Networking Module","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"521\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/mitsubishi\" title=\"Mitsubishi\"\u003eMitsubishi\u003c\/a\u003e QJ71LP21-25 \u003ca href=\"https:\/\/plgautomation.com\/collections\/networking-communication\" title=\"Link Unit Networking\"\u003eLink Unit Networking\u003c\/a\u003e Module is used in industrial automation systems to enable high-speed data communication over MELSECNET\/10 fiber optic networks between PLC stations. Commonly installed in large-scale production lines, process control systems, and distributed automation setups requiring reliable long-distance communication. Maintenance teams, OEMs, and system integrators use this part for system expansion, replacement, and upgrading network communication infrastructure.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"523\" data-end=\"540\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"541\" data-end=\"894\"\u003eThe Mitsubishi QJ71LP21-25 module is widely used in industrial environments where stable and high-speed network communication is critical. It is commonly applied in factory automation systems, material handling systems, power plants, and process industries where multiple PLCs and devices must communicate over long distances using fiber optic networks.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"896\" data-end=\"925\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"926\" data-end=\"1428\"\u003e• Manufacturer Part Number (MPN): QJ71LP21-25\u003cbr data-start=\"971\" data-end=\"974\"\u003e• Product Type: PLC Networking Module (Fiber Optic Link Unit)\u003cbr data-start=\"1035\" data-end=\"1038\"\u003e• Series: MELSEC-Q\u003cbr data-start=\"1056\" data-end=\"1059\"\u003e• Network Type: MELSECNET\/10\u003cbr data-start=\"1087\" data-end=\"1090\"\u003e• Transmission Medium: Fiber optic cable\u003cbr data-start=\"1130\" data-end=\"1133\"\u003e• Communication Speed: Up to 10 Mbps\u003cbr data-start=\"1169\" data-end=\"1172\"\u003e• Maximum Distance: Up to 25 km (depending on configuration)\u003cbr data-start=\"1232\" data-end=\"1235\"\u003e• Topology: Ring \/ loop configuration\u003cbr data-start=\"1272\" data-end=\"1275\"\u003e• Number of Stations: Supports multiple network nodes\u003cbr data-start=\"1328\" data-end=\"1331\"\u003e• Mounting: Rack-mounted (Q-series base unit)\u003cbr data-start=\"1376\" data-end=\"1379\"\u003e• Compatibility: Mitsubishi MELSEC-Q Series PLC\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1430\" data-end=\"1454\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1455\" data-end=\"1525\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Mitsubishi \u003ca href=\"https:\/\/plgautomation.com\/products\/mitsubishi-link-unit-qj71lp21-25-networking-module-melsec-si-fibre-optic-cable?_pos=4\u0026amp;_sid=0321cb2e8\u0026amp;_ss=r\" title=\"QJ71LP21\"\u003eQJ71LP21\u003c\/a\u003e\u003cbr data-start=\"1476\" data-end=\"1479\"\u003e• Mitsubishi QJ71LP21G\u003cbr data-start=\"1501\" data-end=\"1504\"\u003e• Mitsubishi \u003ca href=\"https:\/\/plgautomation.com\/products\/mitsubishi-qj71br11-net-or-net-10-master-with-coaxial-link-mitsubishi-electr?_pos=1\u0026amp;_sid=00a516884\u0026amp;_ss=r\" title=\"QJ71BR11\"\u003eQJ71BR11\u003c\/a\u003e\u003c\/p\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558417010990,"sku":"New","price":1040.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/QJ71LP21-25_V.jpg?v=1751959712","url":"https:\/\/plgautomation.com\/products\/mitsubishi-electric-qj71lp21-25-link-unit-networking-module","provider":"PLG Automation ","version":"1.0","type":"link"}