Equip-Link Equip-Link

Optical Transceivers 1.25G SFP Module Manufacturer & Exporters

Your Trusted Global Partner for Carrier-Grade Fiber Optic Connectivity, Multi-Vendor Interoperability, and Scalable Network Infrastructures.

Product Portfolio

Premium 1.25G SFP Optical Transceiver Modules

Explore our top-selling 1.25G SFP transceivers engineered for unmatched stability, long transmission distances, and robust multi-vendor compatibility.

1310nm-TX/1550nm-RX Simplex LC Bidirectional Fiber Optic Transceivers Module Single Mode 1G Bidi SFP 20km

1310nm-TX/1550nm-RX Simplex LC Bidirectional Fiber Optic Transceivers Module Single Mode 1G Bidi SFP 20km

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Multimode Dual LC Optical Transceiver MMF 850nm 1.25G SFP Fiber Optic Module 550m

Multimode Dual LC Optical Transceiver MMF 850nm 1.25G SFP Fiber Optic Module 550m

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Duplex LC SMF Fiber Optic Transceiver Single Mode 1310nm 1.25G SFP Optical Module 10km

Duplex LC SMF Fiber Optic Transceiver Single Mode 1310nm 1.25G SFP Optical Module 10km

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1000BASE-ZX Mini Gbic Fiber Optical Transceiver Single Mode 1550nm 1G SFP Module 80km

1000BASE-ZX Mini Gbic Fiber Optical Transceiver Single Mode 1550nm 1G SFP Module 80km

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1000BASE-SX SFP Ethernet Module 850nm 550m Duplex LC MMF Fiber Optical Transceiver

1000BASE-SX SFP Ethernet Module 850nm 550m Duplex LC MMF Fiber Optical Transceiver

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1000BASE-T SFP 1310nm 2km Duplex LC MMF Optical Fiber Transceiver Module

1000BASE-T SFP 1310nm 2km Duplex LC MMF Optical Fiber Transceiver Module

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1000BASE-LX/LH SFP Module 1310nm 10km DOM Duplex LC SMF Optical Transceiver

1000BASE-LX/LH SFP Module 1310nm 10km DOM Duplex LC SMF Optical Transceiver

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1000BASE-LX/LH SFP Transceiver 1310nm 20km Duplex LC SMF Optical Module

1000BASE-LX/LH SFP Transceiver 1310nm 20km Duplex LC SMF Optical Module

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Corporate Strength

Why Global Networks Trust Equip-Link

Founded in 2017, Equip-Link Intelligent Equipment (Shenzhen) Co., Ltd. has established itself as an authoritative leader in high-performance optical transceiver engineering. Supporting major international operators and cloud architectures, our scientific R&D coupled with strict quality validation standards underpins our market leadership.

Our modern 380 square meter facility operates with state-of-the-art clean-room standards, utilizing high-precision optical alignment tools and performance validation systems to exceed the strict tolerances demanded by global networks.

14+
Years Industry Expertise
9+
Years Export History
$18M+
Annual Export Value
1280+
Supply Chain Partners
Industry Whitepaper

The Vital Role of 1.25G SFP Modules in Modern Networks

Exploring the technical resilience, cost efficiency, and performance engineering of 1.25Gb/s Small Form-Factor Pluggable (SFP) architectures.

1. Technical Landscape & Industry Trends of 1.25G SFP Modules

While global hyper-scale data centers aggressively scale towards 400G and 800G optical engines, 1.25G SFP transceivers remain an indispensable foundation for optical access networks, enterprise campuses, and industrial automation networks. The longevity of 1.25Gb/s networks is driven by their unmatched balance of power efficiency, thermal endurance, and cost effectiveness. In applications such as Fiber-to-the-Home (FTTH) backhaul, industrial IoT (IIoT) sensor networks, and legacy telecom networks, transitioning to higher bandwidth formats is economically and structurally unnecessary.

Moreover, the technological progression within 1.25G architectures has not stagnated. Modern SFP transceivers leverage state-of-the-art optical sub-assemblies (TOSA/ROSA) to support advanced multiplexing methods like Bidirectional (BiDi) transmission. By sending and receiving signals over a single strand of fiber using distinct wavelengths (e.g., 1310nm-TX/1550nm-RX), operators can immediately double their fiber capacity without running new cables, saving significant infrastructure capital.

2. High-Yield Procurement Demands for Global Enterprises

Global optical transceiver procurement has shifted from a raw cost-per-unit focus to analyzing the Total Cost of Ownership (TCO) and system availability. Enterprise IT leaders, system integrators, and telecom operators prioritize optical modules that deliver high reliability and absolute compatibility. The primary issue with budget-grade transceivers is their high failure rate under thermal stress and their inability to communicate with host platforms due to proprietary software lockouts.

Equip-Link meets these critical enterprise requirements by delivering transceivers that comply with MSA standards and support Digital Optical Monitoring (DOM) per SFF-8472. DOM provides network administrators with real-time access to critical operating metrics such as laser bias current, optical output power, receiver sensitivity, operating temperature, and voltage. This enables proactive network maintenance, minimizing unplanned downtime and protecting mission-critical operations.

3. Macro-Topological Applications and Cross-Industry Solutions

Our 1.25G SFP modules are deployed across diverse sectors to solve various networking challenges:

  • Metropolitan Access & FTTH Networks: Providing cost-effective, long-reach connectivity (up to 160km using 1000BASE-ZXC architectures) to link regional offices and remote broadband distribution nodes.
  • Industrial Ethernet and Utility Grids: Featuring wide-temperature ratings to support outdoor switch gear, smart transportation control boxes, and energy substation monitoring systems.
  • Enterprise and Campus Networks: Assisting systems integrators in establishing gigabit fiber backbones between offices, data rooms, and edge switches.
Manufacturing Infrastructure

Step-by-Step Quality Control & Production Flow

From premium materials to rigorous optical testing, explore our transparent manufacturing process ensuring high reliability.

Raw Material Inspection
1. Raw Material Inspection
Injection Molding
2. Precision Injection Molding
Optoelectronic Assembly
3. Optoelectronic Assembly
Systematic Packing
4. Systematic Packing

5. High-Capacity Distribution Warehouse

Our managed warehouse maintains optimized stock levels of core 1.25G SFP components to support fast global shipping and high-volume demand.

Warehouse Storage

Advanced Laboratory Testing & Equipment

Every batch of transceivers undergoes rigorous optical performance and environmental stress testing using advanced testing systems.

Injection Molding Machine
Precision Injection Machine
High And Low Temperature Damp Heat Alternating Test Chamber
Damp Heat Alternating Test Chamber
Optical Insertion Loss Tester
Optical Insertion Loss Tester
Integrated Optical Fiber End Face Inspection Experts

Integrated Optical Fiber End Face Inspection

Uncleaned optical connector end faces are the leading cause of signal degradation and transceiver failure. Our testing process ensures zero dust contamination and perfect geometry on every fiber mating surface.

Value-Added Solutions

Customized Firmware & Multi-Vendor Compatibility

Overcoming vendor lock-in with precise EEPROM programming and customized hardware design.

Cross-Platform Compatibility Programming

Modern networking switches use software lockouts to prevent the use of third-party transceivers. To bypass this, Equip-Link's engineering team maintains a database of host configuration codes for major switches like Cisco, Juniper, HPE, Arista, Dell, and Huawei.

By custom-programming the transceiver's onboard EEPROM to match these device profiles, our modules integrate seamlessly, preventing error codes like "transceiver unrecognized" and enabling smooth operation.

Supported Network Architectures

  • Cisco Catalyst & Nexus Series
  • Juniper EX/MX Routing & Switching
  • Arista 7000 Datacenter Platforms
  • HP ProCurve / Aruba Enterprise Switched Networks
  • Generic MSA Compliant Hardware Platforms
Technology Roadmap

The Future of Edge Connectivity & Industrial Systems

Our engineering roadmap highlights key trends in edge and industrial networks.

Eco-Friendly Architectures

Reducing power consumption to under 0.8W per module to lower energy costs in large deployments.

Extended Range BiDi Tech

Scaling 1.25G Single-Fiber BiDi links to 160km to optimize optical distribution networks.

Coexistence with 10G/25G

Developing multi-rate transceivers that adapt from 1G to 10G, supporting step-by-step network upgrades.

FAQ

Frequently Asked Questions

Get expert answers to technical and compatibility questions regarding 1.25G SFP modules.

What is the difference between SX, LX, EX, ZX, and EZX SFP modules?
These designations represent different transmission distances and fiber standards:
  • 1000BASE-SX: Uses Multi-mode Fiber (MMF), 850nm, designed for short links up to 550 meters.
  • 1000BASE-LX/LH: Uses Single-mode Fiber (SMF) or MMF, 1310nm, supporting link lengths up to 10km or 20km.
  • 1000BASE-EX: Uses Single-mode Fiber (SMF), 1550nm, supporting link lengths up to 40km.
  • 1000BASE-ZX: High-performance SMF module, 1550nm, supporting link lengths up to 80km.
  • 1000BASE-EZX/ZXC: Extended SMF modules using high-sensitivity ROSAs to support links up to 120km or 160km.
Can 1.25G SFP transceivers be plugged into 10G SFP+ ports?
Yes, in many cases. Most SFP+ ports on switches are backward-compatible and can auto-negotiate down to 1G. However, you must manually configure the switch port speed from 10G to 1G in the operating system (e.g., Cisco IOS) to establish the link.
What is DOM/DDM support, and why is it critical for enterprise deployments?
Digital Optical Monitoring (DOM) or Digital Diagnostic Monitoring (DDM) allows network administrators to view real-time operating metrics such as receiver sensitivity, operating temperature, and laser bias current. This data helps identify potential fiber cuts or laser degradation before a link failure occurs, reducing troubleshooting time.
How does Equip-Link ensure multi-vendor compatibility?
Every optical transceiver we produce features a customized EEPROM memory chip. During the testing phase, we write specific firmware configurations onto the transceiver, enabling it to match the host equipment's expected protocol and bypass proprietary vendor lock-in.
Complete SFP Solutions

Extended Range & Industrial SFP Series

Explore our long-haul and industry-standard SFP optical transceivers, designed to maintain link stability across long distances and demanding conditions.

1000BASE-EX SFP 1550nm 40km Duplex LC SMF Fiber Optical Transceiver Module

1000BASE-EX SFP 1550nm 40km Duplex LC SMF Fiber Optical Transceiver Module

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1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module

1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module

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1000BASE-EZX SFP 1550nm 100km Duplex LC SMF Optical Transceiver Module

1000BASE-EZX SFP 1550nm 100km Duplex LC SMF Optical Transceiver Module

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1000BASE-EZX SFP Transceiver 1550nm 120km DOM Duplex LC SMF Fiber Optical Module

1000BASE-EZX SFP Transceiver 1550nm 120km DOM Duplex LC SMF Fiber Optical Module

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1000BASE-ZXC SFP Module 1550nm 160km Duplex LC SMF Fiber Optical Transceiver

1000BASE-ZXC SFP Module 1550nm 160km Duplex LC SMF Fiber Optical Transceiver

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1000BASE-LX/LH SFP Transceiver 1310nm 10km DOM Duplex LC SMF 1.25G Optical Module

1000BASE-LX/LH SFP Transceiver 1310nm 10km DOM Duplex LC SMF 1.25G Optical Module

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1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF 1.25G Transceiver Module

1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF 1.25G Transceiver Module

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1000BASE-ZX SFP 1550nm 80km Duplex LC SMF 1.25G Optical Transceiver Module

1000BASE-ZX SFP 1550nm 80km Duplex LC SMF 1.25G Optical Transceiver Module

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All 1.25G SFP Module Products