Allied Telesis AT-SPLX10/I Compatible 1000BASE-LX/LH SFP Industrial Transceiver (SMF, 1310nm, 10km-20km, LC, DOM, -40~85°C)
This Allied Telesis AT-SPLX10/I compatible SFP industrial transceiver supports 1000BASE-LX/LH connectivity over single mode fiber cable (SMF). It supports a link distance of 10km to 20km on SMF fiber, or 550m on MMF fiber (must be used with a mode conditioning patch cable). This 1G SFP transceiver complies with SFP MSA, IEEE 802.3z, and SFF-8472, so suitable for any MSA-compliant equipment. Instead of an OEM supplier, it comes from OPTCORE, a third-party manufacturer. Hence, this SFP offers a very affordable price compared to the original AT-SPLX10/I.
Unlike the commercial transceiver, this 1G SFP LX industrial transceiver is made with hardened IC and optical components. It also passes extensive high and low temperature tests, allowing it to support an extended industrial temperature range of -40°C to 85°C. Therefore, it is ideal for industrial networks in harsh environments, including telecommunication, data processing and management, industrial and factory automation, machine control, surveillance, mining, oil and gas, rail, intelligent transportation systems (ITSs), and other outdoor applications.
Features

Proven Performance
When performance and reliability are vital, use our 1G SFP module to build your network. OPTCORE transceivers are engineered, produced, and tested in-factory for reliable end-to-end quality.

Proven Compatibility
There’s an easy way to verify compatibility: test in real network devices. The OPTCORE SFP transceiver is tested for compatibility with multi-switch devices to ensure flawless functioning.

Enjoy Massive Saving
Compared to the original transceiver, the OPTCORE 1G SFP module can save you up to 80% on project and optical networking cabling. You won't find a better combination of quality and affordability.
Specifications
Compatible OEM Part# | AT-SPLX10/I | Manufacturer | OPTCORE |
Manufacturer Part# | OSP1250-3120DTR | Form Factor | SFP |
Data Rate | 1.25 Gbps | Wavelength | 1310 nm |
Media Type | SMF | Max Distance | 10km-20km |
Transmitter Type | FP | Receiver Type | PIN |
Transmitter Power | -9 ~ -3 dBm | Receiver Sensitivity | < -22 dBm |
Extinction Ratio | > 9 dB | Receiver Overload | > -3 dBm |
Connector | LC Duplex | Power Consumption | 0.9 W |
DDM/DOM | Yes | Compliance | RoHS, CE, REACH SFP MSA(INF-8074i), IEEE 802.3z, SFF-8472 |
Environment | Operating Temperature: -40~85°C Storage Temperature: -40~85°C |
Application | Industrial Gigabit Ethernet Industrial 1G Fibre Channel Industrial Switch to Switch Interface Industrial Switch to NIC or Media Converter Industrial 1G Optical Links |
Shipping Weight | 0.03 kg | Dimensions (LxWxH) | 55.5×13.7×12 mm |
Receiver sensitivity measured with a PRBS 27-1 test pattern @1.25Gbps, Bit Error Ratio (BER) ≤1E-12.
Application Diagram

Industrial Ethernet Switch
SFP-1G-LX-I
FOC-125
LC-LC-SM-DX
SFP-1G-LX-I
Gigabit Switch (48xRJ45, 4xSFP)

Industrial Ethernet Switch
SFP-1G-LX-I
LC-LC-SM-DX
SFP-1G-LX-I
SFP Industrial Converter
Cat6 Cable
Gigabit Switch
Key Features
Industrial-Grade SFP for Industrial Gigabit Ethernet
Designed for harsh industrial environments, the 1000BASE-LX SFP provides secure 1G connectivity for industrial automation, manufacturing, security, transportation, oil and gas, mining, and smart cities. Typically used in industrial Ethernet switches, media converters, and routers.
Intelligent DOM/DDM for Reliable Networks
With built-in DOM/DDM function, the 1G SFP industrial module allows users to monitor the fiber link operating parameters in real-time. That ensures a reliable optical network and helps locate network problems quickly.

Optimal Performance and Quality for 1G Industrial Networks
Featuring a built-in Semtec chip and reliable FP laser / PIN receiver, the SFP module delivers low power consumption and stable optical links for 1G single mode networks like Industrial Gigabit Ethernet and Fibre Channel. You can rest assured regarding quality and warranty.

Compatibility
- Allied Telesis 8000GS Series – AT-8000GS/24,AT-8000GS/24PoE,AT-8000GS/48
- Allied Telesis 8000S Series – AT-8000S/16,AT-8000S/24,AT-8000S/24PoE,AT-8000S/48,AT-8000S/48PoE
- Allied Telesis 8100S Series Copper Switch – AT-8100S/24,AT-8100S/24-POE,AT-8100S/24C,AT-8100S/48,AT-8100S/48-POE
- Allied Telesis 8100S Series Fiber Switch – AT-8100S/16FB-LC,AT-8100S/16FB-SC,AT-8100S/24F-LC
- Allied Telesis 8100L Series – AT-8100L/8,AT-8100L/8POE,AT-8100L/8POE-E
- Allied Telesis 9000 Series Managed Gigabit Switch – AT-9000/28,AT-9000/28SP,AT-9000/52
- Allied Telesis 9400 Series Managed Gigabit Ethernet Switch – AT-9408LC/SP-xx,AT-9424T/SP-xx
- Allied Telesis 9900 Series Gigabit Layer 3 Switch – AT-9924T,AT-9924SP,AT-9924T
- Allied Telesis GS900M Series Layer 2 Gigabit Access Switches – AT-GS908M,AT-GS916M,AT-GS924M
- Allied Telesis GS900MX/MPX Series Gigabit Stackable Switches – AT-GS924MPX,AT-GS924MX,AT-GS948MPX,AT-GS948MX
- Allied Telesis GS950 Gigabit WebSmart Switch Series – AT-GS950/16,AT-GS950/24,AT-GS950/48,AT-GS950/8,AT-GS950/8PoE
- Allied Telesis SwitchBlade 4000 Layer 3 Modular Switch – ATSB104-XX – AT-SB4442, ATSB108-XX – AT-SB4442
- Allied Telesis SwitchBlade x3100 Series Access Edge Chassis Switches
- Allied Telesis x210 Series Gigabit Edge Switches – AT-x210-16GT,AT-x210-24GT,AT-x210-9GT
- Allied Telesis x230 Series Gigabit Edge Switches – AT-x230-10GP,AT-x230-18GP,AT-x230-18GT,AT-x230-28GP,AT-x230-28GT
- Allied Telesis x310 Series Stackable Access Switches – AT-x310-26FP,AT-x310-26FT,AT-x310-50FP,AT-x310-50FT
- Allied Telesis x510 Series Stackable Gigabit Switches – AT-x510-28GPX,AT-x510-28GSX,AT-x510-28GSX-80,AT-x510-28GTX,AT-x510-52GPX,AT-x510-52GTX,AT-x510DP-28GTX,AT-x510DP-52GTX,AT-x510L-28GP,AT-x510L-28GT,AT-x510L-52GP,AT-x510L-52GT
- Allied Telesis x600 Series Gigabit Layer 3 Stackable Switches – AT-x600-24Ts,AT-x600-24Ts-POE,AT-x600-24Ts-POE+,AT-x600-24Ts/XP,AT-x600-48Ts,AT-x600-48Ts/XP
- Allied Telesis x610 Series Layer 3+ Network Switch – AT-610-24Ps/X,AT-610-24Ts,AT-610-24Ts-POE+,AT-610-24Ts/X,AT-610-24Ts/X-POE+,AT-610-48Ts,AT-610-48Ts-POE+,AT-610-48Ts/X,AT-610-48Ts/X-POE+
- Allied Telesis x900 Advanced Layer 3 Switch Series – AT-x900-12XT/S-yy,AT-XEM-12S,AT-x900-24XS-xx,AT-x900-24XS-xx,AT-x900-24XT-N-85,AT-x900-48FE,AT-x900-48FS
- Allied Telesis SwitchBlade x908 – AT-XEM-12S,AT-XEM-12Sv2
Note: All trademarks, products, and company names mentioned are the property of their respective owners and are used for comparative purposes only. This product is NOT certified or endorsed by Allied Telesis.
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