Allied Telesis AT-SP10LR20 Compatible 10GBASE-LR SFP+ 20km
Allied Telesis compatible AT-SP10LR20 - Key Features
- Compatibility: Allied Telesis
- Media Type: Single-Mode Fiber (SMF)
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 20 km
- Average Link Budget: 9 dB
- Tx Wavelength: 1310 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Allied Telesis AT-SP10LR20 Price
Allied Telesis compatible AT-SP10LR20 Specifications
Form Factor | SFP+ |
Media Type | Single-Mode Fiber (SMF) |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 20 km |
Average Link Budget | 9 dB |
TX Wavelength | 1310 nm |
RX Wavelength | 1310 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 100 nm (1260-1360 nm) |
Rx Wavelength Bandwidth | 100 nm (1260-1360 nm) |
Minimum Transmitting Power | -8.2 dBm |
Maximum Transmitting Power | 0.5 dBm |
Receiver Sensitivity | -14.5 dBm |
Receiver Overload | 0 dBm |
Dispersion | 140-160 ps/nm |
Transmitter Type | DFB Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
Allied Telesis compatible AT-SP10LR20 Datasheet
v6Complete technical specifications and product details
Allied Telesis compatible AT-SP10LR20 Description
EdgeOptic's AT-SP10LR20 compatible is an Allied-Telesis-coded 10GBASE-LR SFP+ for 10G Ethernet over single-mode fiber out to 20 km. The OEM AT-SP10LR20 is published as a 20 km native SFP+, and our compatible matches that reach class directly, with parity on optical budget and wavelength plan rather than an extended-reach claim. The module ships with Allied-Telesis-recognized EEPROM, so AlliedWare Plus accepts it without a third-party transceiver override.
Allied Telesis has marked the AT-SP10LR20 as End of Sale, so engineers maintaining legacy Allied Telesis installations cannot order new OEM stock. The EdgeOptic compatible is built specifically for that deployment scenario, keeping in-place x510 and x930 SFP+ uplinks running on long-reach single-mode without forcing a switch refresh.
Optically, the module operates at 1310 nm nominal with a DFB laser transmitter and a PIN photodiode receiver. TX power is between -8.2 and 0.5 dBm, RX sensitivity is rated to -14.5 dBm, and the average link budget of 9 dB carries the link across roughly 20 km of G.652 SMF given typical industry attenuation. The line interface is duplex LC, and digital diagnostic monitoring (DDM/DOM) reports temperature, supply voltage, TX bias, TX power, and RX power for in-service health checks. Operating temperature is the standard 0 to 70 degrees C class, suitable for typical data center, central office, and enterprise wiring closet environments.
Applications align with the Allied Telesis SFP+ ecosystem: 10G uplinks between distribution and aggregation, ISP fiber-to-the-home backhaul, mobile core and backhaul aggregation, and inter-site data center connections where 20 km of dark fiber sits between buildings. The compatible supports both 10G Ethernet at 10.3125 Gbps and Gigabit Ethernet at 1.25 Gbps when the host port is configured for the appropriate rate.
Compatible with Allied Telesis switches that expose 1/10G SFP+ ports, including the x510 Series and the x930 Series. Verify the module on the host with the AlliedWare Plus command show system pluggable diagnostics; the module's optical parameters and EEPROM data should appear in the output without any unsupported-transceiver warning. For host platforms outside the AT-SP10LR20 EEPROM scope, consult the chassis transceiver compatibility table before deployment.
The module is CE and RoHS compliant, Class 1 laser safety certified to FDA and IEC 60825-1, and built to the SFP+ MSA SFF-8432 mechanical and SFF-8431 electrical specifications.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. The AT-SP10LR20 compatible inherits its optical specification from the EdgeOptic 10G-SFP-20 root product; for sizing help on a legacy Allied Telesis refresh or a mixed-vendor 20 km link, contact our sales team.
AT-SP10LR20 Frequently Asked Questions
How do AT-SP10LR, AT-SP10LR20, and AT-SP10LR20/I differ?
Three different Allied Telesis SFP+ SKUs covering the same 1310 nm LR family. AT-SP10LR is the 10 km LR variant. AT-SP10LR20 is the 20 km extended-reach variant in the standard 0 to 70 degrees C class; that's the part this page covers. AT-SP10LR20/I is the 20 km industrial-temperature version rated for -40 to +85 degrees C. The reach is encoded in the SKU name and the trailing /I marks the industrial build. Order against the SKU printed on the OEM part you are replacing; the EdgeOptic compatibles are coded separately for each variant.
How do I verify the AT-SP10LR20 compatible is recognized on AlliedWare Plus?
Insert the module into a 1/10G SFP+ port on an AlliedWare Plus switch and run show system pluggable diagnostics from the CLI. The command is documented in the AT-x510 series Command Reference and reports the transceiver's identity, optical parameters, and DDM telemetry. With the EdgeOptic compatible's Allied-Telesis-coded EEPROM, the module appears as a recognized AT-SP10LR20 without any unsupported-transceiver warning. If the host runs a different chassis family, consult that chassis transceiver table to confirm SFP+ port support.
Allied Telesis lists AT-SP10LR20 as End of Sale. Can I still source a replacement?
Yes. Allied Telesis no longer sells new AT-SP10LR20 units, which is why most engineers reach this page in the first place; they are maintaining an installed x510 or x930 deployment and need a like-for-like 20 km LR replacement. The EdgeOptic compatible is built for that scenario: same 1310 nm 20 km SMF spec, Allied-Telesis-coded EEPROM, and EU stock for next-business-day shipping. For larger refresh projects across multiple sites, contact our sales team for staged delivery options.