Allied Telesis AT-SPTX Compatible 1000BASE-T SFP Transceiver Module (Copper, 100m, RJ45)
This Allied Telesis AT-SPTX compatible SFP module supports 1000Base-T connectivity up to 100m (328ft) over Cat5/Cat5e or above Ethernet cable via RJ45 connector. It is a copper transceiver compliant with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE 802.3-2002 and IEEE 802.3ab. Instead of an OEM supplier, it is made by a third-party manufacturer, OPTCORE. Hence, it offers a very affordable price when compared with the original AT-SPTX. Most importantly, we code and test each transceiver to ensure it works with the Allied Telesis 1G network switches, routers, servers, and network interface cards (NICs).
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-SPTX | Manufacturer | OPTCORE |
Manufacturer Part# | OSP1250-CU01NCR | Form Factor | SFP |
Data Rate | 1000 Mbps | Wavelength | NA |
Media Type | Cat5/5e/6/6a cable | Max Distance | 100 m |
Transmitter Type | N/A | Receiver Type | N/A |
Transmitter Power | N/A | Receiver Sensitivity | N/A |
Extinction Ratio | N/A | Receiver Overload | N/A |
Connector | RJ45 Female | Power Consumption | 1.1 W |
DDM/DOM | No | Compliance | RoHS, CE, REACH SFP MSA, IEEE 802.3, 802.3ab |
Environment | Operating Temperature: 0~70°C Storage Temperature: -40~85°C |
Application | Gigabit Ethernet Switch to Switch Interface Switch to NIC or Media Converter Interface Other 1G Links |
Shipping Weight | 0.03 kg | Dimensions (LxWxH) | 68.0×13.5×14mm |
Application Diagram

Gigabit Ethernet Switch
SFP-1G-T
Cat6 Cable
SFP-1G-T
Gigabit Ethernet Switch

Gigabit Ethernet Switch
SFP-1G-T
Cat6 Cable
SFP-1G-T
1G SFP NIC
2U Rackmount Server
Key Features
Boost Throughput With Copper Networks
Quickly improve network performance for SMBs and data centers with 1G connectivity, extending the distance up to 100 meters using legacy Cat 5, Cat 5e, or Cat 6, Cat 6a and higher Ethernet cables.

Optimal Performance and Quality for 1G Networks
Featuring a built-in Marvell chip and reliable RJ45 port, the 1000BASE-T SFP module delivers low power consumption and stable copper connectivity for 1G networks, such as Gigabit Ethernet in enterprise networks and data centers.

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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