{"product_id":"honeywell-2mlr-dbsf-fiber-optic-i-o-interface-module","title":"Honeywell 2MLR-DBSF Fiber Optic I\/O Interface Module","description":"\u003ch2\u003eHoneywell 2MLR-DBSF Fiber Optic I\/O Interface Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for optical extension‑base communication in HC900 and ControlEdge platforms, the \u003cstrong\u003eHoneywell 2MLR-DBSF\u003c\/strong\u003e (\u003cstrong\u003e2MLR-DBSF\u003c\/strong\u003e fiber interface module) provides physical optical signaling between distributed I\/O bases using multi‑mode fiber and LC connectors.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e2MLR-DBSF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia Type\u003c\/th\u003e\n\u003ctd\u003eOptical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Distance\u003c\/th\u003e\n\u003ctd\u003e2 km (multi‑mode fiber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable Specification\u003c\/th\u003e\n\u003ctd\u003e62.5\/125 multi‑mode fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eLC (Lucent Connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReturn Loss\u003c\/th\u003e\n\u003ctd\u003e\u0026gt; 45 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoader Connection\u003c\/th\u003e\n\u003ctd\u003eExtension drive USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStation Range\u003c\/th\u003e\n\u003ctd\u003e1 to 31 (other numbers generate error)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstall Position\u003c\/th\u003e\n\u003ctd\u003eCPU parts (CPU0 connector) in extension base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e99 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel Isolation Behavior\u003c\/h3\u003e\n\u003cp\u003eAlthough the module handles optical communication rather than analog loops, its fiber‑based signaling architecture prevents electrical coupling between extension bases. Optical isolation eliminates ground‑loop interference and ensures deterministic backplane communication across long distances. The LC multi‑mode interface maintains stable attenuation characteristics, preventing cross‑talk between adjacent optical channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 2MLR-DBSF be inserted or removed while the extension base is powered? A: No. The extension base must be fully de‑energized before module insertion or removal to avoid communication faults.\u003c\/p\u003e\n\u003cp\u003eQ: What happens if a station number outside 1 to 31 is assigned? A: The system flags an error and prevents initialization of the extension link.\u003c\/p\u003e\n\u003cp\u003eQ: Does fiber length affect communication timing? A: Within the 2 km limit, timing remains deterministic. Excessive length or incorrect fiber type may increase attenuation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eUse 62.5\/125 multi‑mode fiber exclusively to maintain correct optical attenuation. Ensure LC connectors are fully seated and free of dust; contamination can significantly reduce return loss. Route fiber cables separately from copper conductors to avoid mechanical stress. Maintain minimum bend radius as specified for multi‑mode fiber to prevent signal degradation. Confirm correct station numbering before energizing the extension base.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48191160385726,"sku":"2MLR-DBSF","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/2MLL-C42B_7adb69ed-d90f-4eb7-9f5e-8465350ff588.png?v=1784280824","url":"https:\/\/www.autooiltech.com\/ar\/products\/honeywell-2mlr-dbsf-fiber-optic-i-o-interface-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}