TP-LINKs TL-SM321A adopts the latest standard 1000Base-BX, transmission over a single strand of fiber, with one different wavelength going in each direction. You can extend the network distance up to 10Km (6.2 miles) paired with TP-LINK TL-SM321A, MC112CS, or compatible third-party WDM module.
| Performance | |
| SFP transceiver type: | Fiber optic |
| Maximum data transfer rate: | 1250 Mbit/s |
| Interface type: | SFP |
| Single-mode fiber (SMF) supported: | ![]() |
| Multi-mode fiber (MMF) supported: | ![]() |
| Fiber optic connector: | LC (UPC) |
| Fiber cable diameters supported (core/cladding): | 9/125 µm |
| SFP transceiver standard: | BX |
| Maximum transfer distance: | 1000 m |
| Networking standards: | IEEE 802.3z |
| Fiber ethernet cabling technology: | 1000BASE BX |
| Wavelength-division multiplexing (WDM): | ![]() |
| Operational conditions | |
| Operating temperature (T-T): | 0 - 70 °C |
| Storage temperature (T-T): | -40 - 80 °C |
| Operating relative humidity (H-H): | 10 - 90% |
| Storage relative humidity (H-H): | 5 - 90% |
| Technical details | |
| Sustainability certificates: | RoHS |
| Logistics data | |
| Harmonized System (HS) code: | 85369010 |