Description
Applications
Specifications

◆ Description:

Miray’s GE-BX20-SM3149 Transceivers are a high performance, cost effective module which have a single LC optics interface. They are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) and Digital diagnostics functions are available via the 2-wire serial bus specified in SFF-8472. The receiver section uses a PIN receiver and the transmitter uses a 1310 nm FP laser, up to 14dB link budge ensure this module 1000Base-LX Ethernet 20km application.

Compact 1.25Gbps BiDi Connectivity for Long-Range Fiber Links
This SFP module delivers a practical 1000BASE-BX solution for network switch deployments that need stable point-to-point fiber transmission over longer distances, making it a strong fit for ethernet switch upgrades, access-layer expansion, and structured cabling environments where one fiber strand must carry both transmit and receive traffic. With TX1310nm/RX1490nm operation, a single LC interface, and support for up to 20km on 9/125μm SMF, it gives system builders and procurement teams a dependable way to extend links without adding unnecessary complexity. Buyers looking for a field-ready sfp module for industrial networking, telecom rooms, or campus interconnects will value its balanced mix of reach, interoperability, and operational simplicity, especially when building with equipment from top network switch manufacturers and industrial ethernet switch manufacturers.

Engineered for Reliable Operation and Monitoring
Built around a 1310nm FP laser transmitter and a PIN photo-detector, this transceiver is designed to support up to 1.25Gb/s data links with the optical budget needed for consistent performance in 1000Base-LX-style applications. It is hot-pluggable, runs on a single +3.3V power supply, and supports the SFF-8472 monitoring interface, allowing operators and maintenance teams to check diagnostics during installation or routine service. With a maximum power rating of 1W, RoHS compliance, and lead-free construction, it aligns well with procurement requirements for qualified components sourced from established optical transceiver manufacturers. For buyers selecting parts for a network switch platform or a poe switch environment that needs dependable uplink optics, this module offers a stable and specification-aligned choice.

Well-Suited for Industrial, Commercial, and Extended Temperature Deployments
Available in industrial, extended, and commercial operating temperature versions, the module supports a wide range of deployment environments from -40°C to 85°C, -5°C to 85°C, or 0°C to 70°C, making it practical for plant networks, outdoor enclosures, telecom racks, and controlled indoor cabinets. That flexibility helps integrators standardize one transceiver family across multiple project types while keeping stocking and replacement simpler for distributors and service teams. Whether the application is an ethernet switch in a factory line, a fiber uplink in a building backbone, or a maintenance-ready spare for a network switch program, this module provides a reliable way to maintain link performance over 20km with clear operational fit for industrial and commercial infrastructure.

Key Advantages

Stable 1.25Gb/s BiDi Link for Reliable Network Builds
This sfp module supports up to 1.25Gb/s data links with a single LC interface, making it well suited for compact port designs in an ethernet switch or network switch. The 1310nm FP transmitter and 1490nm PIN receiver work together to support up to 20km over 9/125 μm SMF, which gives system builders a practical way to extend links without changing core hardware. For optical transceiver manufacturers and procurement teams, the stable link budget and hot-pluggable design help reduce downtime during installation and replacement.

Built for Monitoring, Deployment, and Industrial Use
This module includes a digital diagnostics interface compliant with SFF-8472, so operators can monitor key transceiver conditions and detect issues before they affect service. The single +3.3V power supply and maximum 1W power profile support efficient integration in equipment made by top network switch manufacturers, industrial ethernet switch manufacturers, and poe switch platform builders. With industrial, extended, and commercial temperature options available, plus RoHS compliant and lead free construction, it is a practical choice for teams that need dependable operation in demanding environments.

Use Scenarios

Factory Network Uplinks and Control Room Connections
In a factory or plant control room, operators often need to connect an ethernet switch to remote machines or another building without running a new copper line. This transceiver serves as the optical link in that setup, carrying traffic over single-mode fiber while keeping the connection stable over longer distances. It is well suited to these conditions because the module supports hot swapping, offers diagnostic monitoring, and is available in temperature ranges designed for industrial equipment.

Equipment Integration for Switch and Access Platform Makers
For OEMs and resellers assembling a network switch or poe switch line, the module provides a practical optical port option that fits compact hardware and simplifies service planning. The single LC design, SFF-8472 monitoring support, and 20km reach make it a good match when buyers need to connect access devices, cabinet-mounted systems, or remote nodes with minimal complexity. It is especially useful for optical transceiver manufacturers and industrial ethernet switch manufacturers that need a stable, standards-based part for production and after-sales support.

FAQ

Q1. What network applications is this transceiver suited for?
This module is built for 1.25Gb/s data links and 1000Base-BX Ethernet over up to 20 km of 9/125 μm SMF. It is well-suited for a network switch, ethernet switch, or poe switch deployment where a single-LC BIDI connection is required.

Q2. What connector and fiber type do I need?
It uses a single LC connector and is designed for single-mode fiber only. For stable operation, we use 9/125 μm SMF in the specified 20 km link budget, which helps teams plan cabling for transceiver integration with existing equipment.

Q3. What electrical and diagnostic features does it include?
The unit operates from a single +3.3V power supply and includes a monitoring interface compliant with SFF-8472. Our team provides digital diagnostics support so operators can check module status during installation, commissioning, and routine maintenance.

Q4. What operating temperatures are available?
Three temperature versions are available: industrial at -40°C to 85°C, extended at -5°C to 85°C, and commercial at 0°C to 70°C. We recommend selecting the version that matches the cabinet, plant, or outdoor environment where the sfp module will run.

Q5. Can this be used in industrial procurement and OEM projects?
Yes, it is RoHS compliant and lead free, with a maximum power of 1W and hot-pluggable design. We supply this module for buyers working with industrial ethernet switch manufacturers and optical transceiver manufacturers, and our specs support system planning and integration.

Applications

1000Base-ZX Ethernet
Metro/Access Networks
1×FibreChannel
Other Optical Links

Specifications

Part Number:	GE-BX20-SM3149	Vendor Name:	Miray
Form Factor:	SFP	Data Rate:	1.25Gbps
Wavelength:	1310nm-TX/1490nm-RX	Distance:	10km
Connector:	LC Simplex	Cable Type:	OS2 SMF
Transmitter:	FP	Receiver Type:	PIN
TX Power:	-9~-3dBm	Receiver Sensitivity:	<-23dBm
Power Consumption:	<1W	Modulation Format:	NRZ
DDM:	Support	Bit Error Ratio (BER):	1E-12
Protocols:	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant, SFF-8472	Warranty:	5 Years

1.25Gbps 1000BASE-BX SFP BIDI TX1310nm/RX1490nm 20km DOM LC SMF Transceiver Module

Description

Applications

Specifications

Applications

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