Product Highlights
- 1G single-fiber BiDi LC transceiver
- 20km reach over single-mode fiber
- 1310nm TX / 1550nm RX wavelengths
- DDM and -40°C to 85°C operation
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EtherWAN SFPGYS20M Hardened Gigabit SFP Module (DDM, LC)
- SKU:
- EtherWan-SFPGYS20M
- MPN:
- SFPGYS20M
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Description
Product Overview
The EtherWAN SFPGYS20M Hardened Gigabit BiDi SFP Transceiver 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.
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.
Gigabit Single-Fiber BiDi Connectivity
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.
Up to 20 km Single-Mode Fiber Reach
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.
1310 nm TX / 1550 nm RX Wavelength Pairing
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.
Digital Diagnostic Monitoring Support
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.
Hardened -40°C to +85°C Operation
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.
15 dB Optical Link Budget
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.
Industrial Network Engineers
Deploy hardened Gigabit fiber connections between compatible industrial Ethernet switches in locations requiring extended operating temperature tolerance.
Fiber Infrastructure Integrators
Design single-strand optical links using complementary BiDi SFP modules, appropriate single-mode fiber, and verified optical power budgets.
Transportation Network Teams
Integrate compatible hardened fiber transceivers into transportation and roadside networking equipment where long-distance optical communication is required.
Industrial Automation Integrators
Connect compatible Gigabit SFP networking devices across facilities and equipment areas while accounting for environmental requirements and fiber infrastructure.
Network Maintenance Technicians
Identify the correct 1310 nm transmit and 1550 nm receive SFP module when replacing transceivers or troubleshooting compatible single-fiber Ethernet links.
Technical Procurement Teams
Source the SFPGYS20M and complementary SFPGZS20M by their exact manufacturer part numbers while checking host compatibility and availability.
| Specification | Detail |
|---|---|
| Manufacturer | EtherWAN |
| Model / Part Number | SFPGYS20M |
| Product Name | Hardened Gigabit BiDi SFP Fiber Transceiver (DDM, LC) |
| Product Category | Fiber Optic Transceivers and Networking Modules |
| Product Type | Hardened Gigabit Bidirectional SFP Optical Transceiver |
| Ethernet Data Rate | 1 Gbps / Gigabit Ethernet |
| Module Form Factor | Small Form-factor Pluggable (SFP) |
| Optical Connector | Single LC / Simplex LC |
| Fiber Configuration | Single-Fiber Bidirectional (BiDi) |
| Fiber Strand Requirement | One optical fiber strand per bidirectional link |
| Optical Fiber Type | Single-Mode Fiber (SMF) |
| Fiber Core / Cladding | 9/125 microns |
| Maximum Rated Transmission Distance | 20 km / Approximately 12.4 miles |
| Transmit Wavelength | 1310 nm |
| Receive Wavelength | 1550 nm |
| Optical Output Power | -8 to -2 dBm |
| Receiver Sensitivity | -23 dBm |
| Nominal Optical Link Budget | 15 dB, based on minimum transmit power and receiver sensitivity |
| Digital Diagnostic Monitoring | Supported (DDM) |
| DDM Host Requirement | Host equipment must support diagnostic monitoring for access to readings |
| Operating Temperature Range | -40°C to +85°C / -40°F to +185°F |
| Environmental Classification | Hardened / Industrial |
| Supply Voltage | +3.3V, per EtherWAN SFP Series specifications |
| Hot-Pluggable Design | Supported by SFP Series design; follow host equipment instructions |
| SFP Interface Compliance | SFP Multi-Source Agreement (MSA) |
| Laser Safety | Class 1, EN 60825-1, per manufacturer series specifications |
| Environmental Compliance | RoHS Compliant, Lead-Free |
| Complementary BiDi Module | EtherWAN SFPGZS20M |
| Complementary Transmit Wavelength | 1550 nm |
| Complementary Receive Wavelength | 1310 nm |
| Complementary Module Included | No; SFPGZS20M is a separate product |
| Related Duplex LC Model | SFPGIS20M, separate hardened 20 km Gigabit SFP using a duplex LC interface |
| Host Equipment Compatibility | Verify the specific Gigabit SFP switch, media converter, or networking device |
| Optical Link Requirements | Complementary wavelength pairing, compatible single-mode fiber, and link loss within the available optical budget |
| Physical Dimensions and Weight | Exact model-specific dimensions and weight not confirmed |
| Manufacturer Warranty | Subject to EtherWAN's applicable product warranty policy and purchase terms |
What is the EtherWAN SFPGYS20M used for?
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.
Does the SFPGYS20M support Gigabit Ethernet or 10 Gigabit Ethernet?
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.
Can the SFPGYS20M transmit data over a single fiber for 20 kilometers?
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.
Which transceiver pairs with the EtherWAN SFPGYS20M?
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.
What are the optical output power and link budget of SFPGYS20M?
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.
Does the SFPGYS20M support Digital Diagnostic Monitoring and industrial temperatures?
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.
What is the difference between SFPGYS20M and SFPGIS20M?
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.
Need the EtherWAN SFPGYS20M Hardened Gigabit SFP?
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.
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