{"product_id":"etherwan-sfpgys20m-20km-bidi-sfp-module-ddm-lc","title":"EtherWAN SFPGYS20M Hardened Gigabit SFP Module (DDM, LC)","description":"\n\u003c!-- CSS loads automatically via Coremicro theme --\u003e\n\u003cdiv class=\"cm-vendor-general\"\u003e\n\n  \u003c!-- STAT BAR --\u003e\n  \u003cdiv class=\"cm-stat-bar\"\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n      \u003cdiv class=\"cm-stat-bar__value\"\u003e1 Gbps\u003c\/div\u003e\n      \u003cdiv class=\"cm-stat-bar__label\"\u003eEthernet Speed\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n      \u003cdiv class=\"cm-stat-bar__value\"\u003e20 km\u003c\/div\u003e\n      \u003cdiv class=\"cm-stat-bar__label\"\u003eFiber Transmission Reach\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n      \u003cdiv class=\"cm-stat-bar__value\"\u003eSingle LC\u003c\/div\u003e\n      \u003cdiv class=\"cm-stat-bar__label\"\u003eBiDi Optical Connector\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n      \u003cdiv class=\"cm-stat-bar__value\"\u003e15 dB\u003c\/div\u003e\n      \u003cdiv class=\"cm-stat-bar__label\"\u003eOptical Link Budget\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n      \u003cdiv class=\"cm-stat-bar__value\"\u003e-40 to 85°C\u003c\/div\u003e\n      \u003cdiv class=\"cm-stat-bar__label\"\u003eOperating Temperature\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- INTRO --\u003e\n  \u003cp class=\"cm-intro\"\u003e\n    The \u003cstrong\u003eEtherWAN SFPGYS20M Hardened Gigabit BiDi SFP Transceiver\u003c\/strong\u003e delivers reliable single-fiber optical connectivity for compatible industrial Ethernet switches and media converters. Designed for Gigabit Ethernet communication over 9\/125-micron single-mode fiber, the module supports transmission distances up to 20 kilometers through a single LC connector. Its bidirectional optical interface transmits at 1310 nm and receives at 1550 nm, while Digital Diagnostic Monitoring (DDM) provides optical monitoring capabilities through supported host equipment. With a hardened -40°C to +85°C operating temperature range, the transceiver is suitable for industrial networking systems requiring long-distance fiber connections and wide environmental tolerance.\n  \u003c\/p\u003e\n\n  \u003c!-- GEO FACTS --\u003e\n  \u003cp class=\"cm-intro\" id=\"cm-geo-facts\"\u003e\n    The EtherWAN SFPGYS20M is a hardened 1 Gbps bidirectional Small Form-factor Pluggable (SFP) fiber optic transceiver. EtherWAN specifies a simplex LC optical interface, 9\/125-micron single-mode fiber, a maximum transmission distance of 20 km, 1310 nm transmit wavelength, and 1550 nm receive wavelength. The manufacturer lists optical transmit power from -8 to -2 dBm, receiver sensitivity of -23 dBm, and a 15 dB optical link budget. The module supports Digital Diagnostic Monitoring and operates between -40°C and +85°C. It is designed to pair with a complementary wavelength module such as the EtherWAN SFPGZS20M, which transmits at 1550 nm and receives at 1310 nm. EtherWAN's SFP Series specifications identify a +3.3V supply, SFP Multi-Source Agreement compliance, RoHS compliance, and Class 1 laser safety requirements. Actual fiber reach depends on optical attenuation, connector and splice losses, compatible host equipment, and the complete link design. Coremicro supplies professional networking solutions and can assist customers with SFP selection and product compatibility.\n  \u003c\/p\u003e\n\n  \u003c!-- HERO IMAGE --\u003e\n  \u003cdiv class=\"cm-hero\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-SFPGYS20M.webp?v=1792991475\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-SFPGYS20M.webp?v=1792991475\u0026amp;width=700 700w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-SFPGYS20M.webp?v=1792991475\u0026amp;width=1000 1000w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-SFPGYS20M.webp?v=1792991475\u0026amp;width=1400 1400w\" sizes=\"(min-width: 1440px) 1416px, 100vw\" width=\"1000\" height=\"1000\" alt=\"EtherWAN SFPGYS20M hardened Gigabit BiDi SFP with single LC, 20km reach and DDM\" loading=\"lazy\" decoding=\"async\"\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- KEY FEATURES --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n    \u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n    \u003cspan class=\"cm-section-label__text\"\u003eKey Features\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cm-feature-grid cm-feature-grid--2col\"\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🔌\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eGigabit Single-Fiber BiDi Connectivity\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        The SFPGYS20M provides 1 Gbps optical Ethernet connectivity through a single LC interface. Its bidirectional design carries transmit and receive signals over one single-mode fiber strand using two different wavelengths. This configuration is useful for compatible network installations where a single available fiber strand must support communication in both directions.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e📡\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eUp to 20 km Single-Mode Fiber Reach\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        EtherWAN rates the module for distances up to 20 kilometers over 9\/125-micron single-mode optical fiber. This makes it suitable for long-distance Gigabit Ethernet links between compatible networking devices. Actual reach depends on fiber attenuation, connector and splice losses, optical power levels, and overall link conditions rather than distance alone.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🔄\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003e1310 nm TX \/ 1550 nm RX Wavelength Pairing\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        The SFPGYS20M transmits at 1310 nm and receives at 1550 nm. A compatible bidirectional link requires the opposite wavelength arrangement at the remote end. EtherWAN identifies the SFPGZS20M as the complementary 1550 nm TX \/ 1310 nm RX model. Both transceivers are separate products and must be matched to their respective SFP hosts.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e📊\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eDigital Diagnostic Monitoring Support\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        Built-in Digital Diagnostic Monitoring enables supported networking equipment to access transceiver diagnostic information. DDM can assist network technicians when evaluating optical operating conditions or investigating fiber link problems. Available readings, monitoring functions, and management access depend on the capabilities of the connected switch or media converter.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🌡️\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eHardened -40°C to +85°C Operation\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        The transceiver supports an industrial operating temperature range from -40°C to +85°C, making it appropriate for compatible networking equipment deployed in demanding thermal environments. The complete installation must still meet the environmental ratings of the host device, enclosure, fiber cabling, and other connected components.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e📐\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003e15 dB Optical Link Budget\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003e\n        EtherWAN specifies optical output power between -8 and -2 dBm and a receiver sensitivity of -23 dBm. Using the minimum transmit power, these values establish a nominal 15 dB optical link budget. Fiber loss, connector attenuation, splices, and any engineering margin must be evaluated when designing a link to operate reliably within the specified optical limits.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- REAL-WORLD APPLICATIONS --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n    \u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n    \u003cspan class=\"cm-section-label__text\"\u003eReal-World Applications\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cm-audience-grid\"\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eIndustrial Network Engineers\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Deploy hardened Gigabit fiber connections between compatible industrial Ethernet switches in locations requiring extended operating temperature tolerance.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eFiber Infrastructure Integrators\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Design single-strand optical links using complementary BiDi SFP modules, appropriate single-mode fiber, and verified optical power budgets.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eTransportation Network Teams\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Integrate compatible hardened fiber transceivers into transportation and roadside networking equipment where long-distance optical communication is required.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eIndustrial Automation Integrators\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Connect compatible Gigabit SFP networking devices across facilities and equipment areas while accounting for environmental requirements and fiber infrastructure.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eNetwork Maintenance Technicians\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Identify the correct 1310 nm transmit and 1550 nm receive SFP module when replacing transceivers or troubleshooting compatible single-fiber Ethernet links.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eTechnical Procurement Teams\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003e\n        Source the SFPGYS20M and complementary SFPGZS20M by their exact manufacturer part numbers while checking host compatibility and availability.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- TECHNICAL SPECIFICATIONS --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n    \u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n    \u003cspan class=\"cm-section-label__text\"\u003eHardened Gigabit SFP Technical Specifications\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cm-table-wrap\"\u003e\n    \u003ctable class=\"cm-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eDetail\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eEtherWAN\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSFPGYS20M\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eHardened Gigabit BiDi SFP Fiber Transceiver (DDM, LC)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eProduct Category\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eFiber Optic Transceivers and Networking Modules\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eHardened Gigabit Bidirectional SFP Optical Transceiver\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eEthernet Data Rate\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1 Gbps \/ Gigabit Ethernet\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eModule Form Factor\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSmall Form-factor Pluggable (SFP)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOptical Connector\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSingle LC \/ Simplex LC\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eFiber Configuration\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSingle-Fiber Bidirectional (BiDi)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eFiber Strand Requirement\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eOne optical fiber strand per bidirectional link\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOptical Fiber Type\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSingle-Mode Fiber (SMF)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eFiber Core \/ Cladding\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e9\/125 microns\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eMaximum Rated Transmission Distance\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e20 km \/ Approximately 12.4 miles\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eTransmit Wavelength\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1310 nm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eReceive Wavelength\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1550 nm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOptical Output Power\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e-8 to -2 dBm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eReceiver Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e-23 dBm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eNominal Optical Link Budget\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e15 dB, based on minimum transmit power and receiver sensitivity\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eDigital Diagnostic Monitoring\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSupported (DDM)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eDDM Host Requirement\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eHost equipment must support diagnostic monitoring for access to readings\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e-40°C to +85°C \/ -40°F to +185°F\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eEnvironmental Classification\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eHardened \/ Industrial\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e+3.3V, per EtherWAN SFP Series specifications\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eHot-Pluggable Design\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSupported by SFP Series design; follow host equipment instructions\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eSFP Interface Compliance\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSFP Multi-Source Agreement (MSA)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eLaser Safety\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eClass 1, EN 60825-1, per manufacturer series specifications\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eEnvironmental Compliance\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eRoHS Compliant, Lead-Free\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eComplementary BiDi Module\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eEtherWAN SFPGZS20M\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eComplementary Transmit Wavelength\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1550 nm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eComplementary Receive Wavelength\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1310 nm\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eComplementary Module Included\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eNo; SFPGZS20M is a separate product\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRelated Duplex LC Model\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSFPGIS20M, separate hardened 20 km Gigabit SFP using a duplex LC interface\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eHost Equipment Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eVerify the specific Gigabit SFP switch, media converter, or networking device\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOptical Link Requirements\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eComplementary wavelength pairing, compatible single-mode fiber, and link loss within the available optical budget\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003ePhysical Dimensions and Weight\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eExact model-specific dimensions and weight not confirmed\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eManufacturer Warranty\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSubject to EtherWAN's applicable product warranty policy and purchase terms\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FREQUENTLY ASKED QUESTIONS --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n    \u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n    \u003cspan class=\"cm-section-label__text\"\u003eFrequently Asked Questions\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat is the EtherWAN SFPGYS20M used for?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          The EtherWAN SFPGYS20M is a hardened Gigabit Ethernet SFP optical transceiver designed for bidirectional communication over a single strand of single-mode fiber. It uses a simplex LC connector, transmits at 1310 nm, receives at 1550 nm, and supports rated distances up to 20 km when installed with compatible networking equipment and a complementary transceiver.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eDoes the SFPGYS20M support Gigabit Ethernet or 10 Gigabit Ethernet?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          The SFPGYS20M is a Gigabit Ethernet transceiver designed for 1 Gbps optical connections. It is not specified as a 10 Gigabit Ethernet SFP+ module. The connected equipment must support the appropriate Gigabit SFP interface and the transceiver's optical and electrical requirements.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eCan the SFPGYS20M transmit data over a single fiber for 20 kilometers?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          Yes. EtherWAN specifies a maximum rated transmission distance of 20 km using 9\/125-micron single-mode fiber. Its bidirectional optical design allows both communication directions to use one fiber strand. Actual operating distance depends on the total fiber loss, connectors, splices, complementary module, and available optical power budget.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhich transceiver pairs with the EtherWAN SFPGYS20M?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          The EtherWAN SFPGZS20M is the complementary 20 km hardened Gigabit BiDi SFP model. SFPGYS20M transmits at 1310 nm and receives at 1550 nm, while SFPGZS20M transmits at 1550 nm and receives at 1310 nm. The complementary module must be purchased separately, and both host devices must support the selected transceivers.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat are the optical output power and link budget of SFPGYS20M?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          EtherWAN lists optical transmit power from -8 to -2 dBm and receiver sensitivity of -23 dBm. These figures produce a nominal 15 dB optical link budget using the minimum transmit power. A complete link design must also account for fiber attenuation, connectors, splices, operating margin, and the optical limitations of both transceivers.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eDoes the SFPGYS20M support Digital Diagnostic Monitoring and industrial temperatures?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          Yes. The SFPGYS20M supports Digital Diagnostic Monitoring and is rated for operation from -40°C to +85°C. DDM information can be accessed when supported by the connected networking device. The complete installation must also remain within the environmental and operational requirements of the host equipment and fiber infrastructure.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat is the difference between SFPGYS20M and SFPGIS20M?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003e\n          The SFPGYS20M is a single-fiber BiDi Gigabit transceiver with a simplex LC connector and separate 1310 nm transmit and 1550 nm receive wavelengths. The SFPGIS20M is a hardened Gigabit SFP with a duplex LC interface designed for a two-fiber optical connection. Both are listed for 20 km single-mode operation with DDM, but their fiber arrangements are different and they are not direct substitutes in every installation.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- CALL TO ACTION --\u003e\n  \u003cdiv class=\"cm-cta\"\u003e\n    \u003ch3 class=\"cm-cta__title\"\u003eNeed the EtherWAN SFPGYS20M Hardened Gigabit SFP?\u003c\/h3\u003e\n    \u003cp class=\"cm-cta__text\"\u003e\n      Contact Coremicro to confirm compatibility with your industrial Ethernet switch or media converter, review 20 km single-mode fiber requirements, and select the appropriate complementary SFPGZS20M transceiver. Our team can help with SFP model selection, optical specifications, product availability, and purchasing information for your Gigabit fiber networking project.\n    \u003c\/p\u003e\n    \u003ca href=\"\/pages\/contact\" class=\"cm-cta__button\"\u003eTalk to a Specialist\u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FOOTER LINKS --\u003e\n  \u003cdiv class=\"cm-footer-links\"\u003e\n    \u003cp class=\"cm-footer-links__label\"\u003eContinue Exploring\u003c\/p\u003e\n    \u003cdiv class=\"cm-footer-links__list\"\u003e\n      \u003ca href=\"\/collections\/network\" class=\"cm-footer-links__item cm-footer-links__item--primary\"\u003eNetwork Equipment\u003c\/a\u003e\n      \u003ca href=\"\/pages\/brands-coremicro\" class=\"cm-footer-links__item\"\u003eCoremicro Brands\u003c\/a\u003e\n      \u003ca href=\"\/pages\/contact\" class=\"cm-footer-links__item\"\u003eContact Us\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"EtherWan","offers":[{"title":"Default Title","offer_id":47488739639458,"sku":"EtherWan-SFPGYS20M","price":529.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-SFPGYS20M.webp?v=1792991475","url":"https:\/\/www.coremicro.com\/products\/etherwan-sfpgys20m-20km-bidi-sfp-module-ddm-lc","provider":"COREMICRO.COM","version":"1.0","type":"link"}