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1G BASE SFP Optical Modules | SX 550m, LX 10km & LH 20km
1.25Gbps SFP transceiver for Gigabit Ethernet
550m, 10km and 20km transmission options
850nm multimode and 1310nm single-mode models
Duplex LC optical interface
0 to 70°C commercial operating temperature
Custom-coded compatibility for specified network equipment
What Makes YRTFIBER 1GBASE SFP the Right Choice?
YRTFIBER 1GBASE SFP optical transceivers provide reliable Gigabit Ethernet connectivity for switches, routers, media converters and other SFP-enabled network equipment.
Choose the 850nm 1000BASE-SX model for short multimode links, or select a 1310nm 1000BASE-LX/LH model for single-mode transmission up to 20km. Custom compatibility coding is available for your specified equipment brand and model.
1G BASE SFP Modules Specification parameters
- Specification parameters
- OPTICAL CHARACTERISTICS
| Port Number | Data Rate | Wavelength | TX | Sensitivity | Distance | Connector | Temperature | Datasheet |
|---|---|---|---|---|---|---|---|---|
| AE-SFP-TA | 10/100/1000M | N/A | N/A | N/A | 100M | RJ45 | 0-70℃ |  |
| AE-SFP-T | 1000M | N/A | N/A | N/A | 100M | RJ45 | 0-70℃ | |
| AE-SFP-SX | 1.25G | 850nm | -9.5~3dBm | -17dBm | 550M | Duplex LC | 0-70℃ | |
| AE-SFP-LX | 1.25G | 1310nm | -9.5~3dBm | -22dBm | 10KM | Duplex LC | 0-70℃ | |
| AE-SFP-LH | 1.25G | 1310nm | -9.5~3dBm | -23dBm | 20KM | Duplex LC | 0-70℃ | |
| AE-SFP-EX | 1.25G | 1310nm | -5~0dBm | -24dBm | 40KM | Duplex LC | 0-70℃ | |
| AE-SFP-ZX | 1.25G | 1550nm | 0~5dBm | -24dBm | 80KM | Duplex LC | 0-70℃ | |
| AE-SFP-ZX120 | 1.25G | 1550nm | 0~5dBm | -32dBm | 120KM | Duplex LC | 0-70℃ | |
| AE-SFP-ZX160 | 1.25G | 1550nm | 1~6dBm | -35dBm | 160KM | Duplex LC | 0-70℃ | |
Product Structure & Composition
The compact SFP housing integrates the optical transmitter, receiver, control circuit and host electrical interface in one hot-pluggable module. A duplex LC receptacle provides separate transmit and receive fiber connections.
Duplex LC Port: Connects the transmit and receive fibers.
Optical Transmitter: Converts the electrical signal into an 850nm or 1310nm optical signal.
Optical Receiver: Converts the incoming optical signal back into an electrical signal.
Metal Housing: Protects the internal optical and electronic components.
SFP Edge Connector: Connects the module to the host switch, router or media converter.
Pull Tab or Bail Latch: Supports convenient module installation and removal.
Benefits of 1G BASE SFP Modules
Build Gigabit Links with the Right Reach
Choose 550m, 10km or 20km transmission according to the fiber type and distance of each network connection.
This avoids paying for unnecessary reach while ensuring an appropriate optical link budget.
Simplify Network Installation and Replacement
The hot-pluggable SFP form factor allows compatible modules to be installed or replaced without redesigning the network equipment.
Duplex LC connectivity also works with widely used fiber patching systems in data centers, campuses and telecom rooms.
Use One Platform for Multimode and Single-mode Links
Network operators can use SX modules for short multimode connections and LX/LH modules for longer single-mode routes while keeping the same SFP equipment platform.
This makes inventory planning and network expansion more flexible.
Reduce Multi-Vendor Compatibility Risk
Custom firmware coding can be prepared for the specified switch, router or media-converter model.
Correct coding helps the host equipment recognize the module and simplifies deployment in mixed-brand networks.
Engineering Applications 1G BASE SFP Modules
Enterprise and Campus Networks
Connect access switches, distribution switches, server rooms and remote buildings through Gigabit Ethernet fiber links.
Use 1000BASE-SX for short multimode runs and 1000BASE-LX/LH for longer single-mode backbone connections.
Telecom and ISP Access Networks
Deploy 1G optical uplinks between access equipment, aggregation locations and telecom rooms.
The available reach options support both local connections and links extending up to 20km.
Data Centers and Server Rooms
Provide fiber connectivity for management networks, legacy Gigabit Ethernet equipment and low-bandwidth infrastructure links.
The compact form factor helps maintain high port density in SFP-enabled switches.
Industrial and Security Networks
Extend Gigabit Ethernet between control rooms, surveillance systems and remote network cabinets through optical fiber.
Fiber transmission provides electrical isolation between connected network locations.
Shipping & Packaging
Each 1G SFP transceiver is protected with an anti-static package and individual product identification. Export cartons provide additional protection during international transportation.
Individual anti-static packaging
Model, wavelength, distance and compatibility labels
Protective inner packing and export carton
OEM label, barcode and packaging options
Express, air and sea shipping support
Product Comparison：
1000BASE-SX vs 1000BASE-LX vs 1000BASE-LH
| Comparison | 1000BASE-SX | 1000BASE-LX | 1000BASE-LH |
|---|---|---|---|
| YRTFIBER Model | AE-SFP-SX | AE-SFP-LX | AE-SFP-LH |
| Data Rate | 1.25Gbps | 1.25Gbps | 1.25Gbps |
| Wavelength | 850nm | 1310nm | 1310nm |
| Recommended Fiber | Multimode | Single-mode | Single-mode |
| Maximum Distance | 550m | 10km | 20km |
| Connector | Duplex LC | Duplex LC | Duplex LC |
| Best For | Short building and equipment-room links | Campus and metropolitan access links | Extended access and point-to-point links |
| Fiber Usage | Two fibers | Two fibers | Two fibers |
1G BASE SFP Modules Selection Guide
How to Select a 1GBASE SFP Transceiver
Confirm the host port: Check that the switch, router or media converter has a 1G SFP port and supports the required Ethernet standard.
Identify the fiber type: Choose 1000BASE-SX for multimode fiber or 1000BASE-LX/LH for single-mode fiber.
Measure the link distance: Select AE-SFP-SX for links up to 550m, AE-SFP-LX for links up to 10km or AE-SFP-LH for links up to 20km.
Check the connector: The listed models use duplex LC connectors and require separate transmit and receive fibers.
Verify the optical budget: Include fiber attenuation, connector loss and splice loss when checking whether the selected module can support the route.
Confirm compatibility: Provide the exact equipment brand, model and software version when requesting custom coding.
Check the environment: These listed models are specified for operation from 0 to 70°C.
with your equipment model, fiber type, link distance and quantity for a compatible 1G SFP recommendation and quotation.
How to Install a 1GBASE SFP Transceiver
Wear an anti-static wrist strap and confirm that the SFP module matches the host equipment, fiber type and required transmission distance. Remove the dust plug, keep the bail latch closed, align the module with the SFP port and gently push it into the port until it is fully seated. Do not force the module if resistance is encountered.
Clean and inspect the duplex LC connectors before connecting the transmit and receive fibers. Insert the LC patch cord, verify that the remote transceiver uses the same Ethernet standard and compatible wavelength, and then check the equipment status, received optical power and link indicators. Keep dust caps fitted whenever the module or fiber connector is disconnected.
Download YRTFIBER Product Catalog
Factory Real Shot
Frequently Asked Questions & Quick Inquiry
1G BASE SFP Modules FAQ
What is the difference between 1000BASE-SX, LX and LH SFP modules?
1000BASE-SX uses an 850nm wavelength with multimode fiber for links up to 550m. The listed 1000BASE-LX and LH models use a 1310nm wavelength with single-mode fiber for transmission distances of up to 10km and 20km respectively.
Which fiber patch cord should I use with these 1G SFP modules?
Use a duplex LC multimode patch cord with the AE-SFP-SX model. Use a duplex LC single-mode patch cord with the AE-SFP-LX or AE-SFP-LH model. Both fiber ends must be connected with the transmit and receive paths correctly aligned.
Can the 1G SFP module be coded for my switch or router?
Yes. Custom compatibility coding is available. Please provide the equipment manufacturer, exact device model and, when possible, the operating-system or firmware version before ordering.
Can I use a 20km SFP module for a very short fiber link?
The selected module should match the actual link loss and the receiver's permitted optical-power range. A high-power long-distance module can overload the receiver on a very short link, so the optical budget should be checked and an attenuator used when required.
Why does the link remain down after the SFP modules are installed?
Check that both modules support the same data rate and Ethernet standard, the fiber type matches the module, the duplex LC transmit and receive fibers are correctly crossed, all connectors are clean, and the modules are recognized by the host equipment.
Do these 1G SFP transceivers support hot plugging?
Yes. The SFP form factor is hot-pluggable in compatible equipment. Follow the equipment manufacturer's handling instructions and use proper anti-static protection when installing or removing a module.
What information should I provide when requesting a quotation?
Please provide the required quantity, transmission distance, fiber type, connector type, equipment brand and model, operating-temperature requirement, OEM labeling requirements and delivery destination.
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