TP-LINK's TL-SM321A is a single-mode SFP module using the latest 1000 Base-BX standard, which performs bidirectional transmission on a single fiber. The SFP optical insert operates at 1550 nm and 1310 nm wavelengths. Single-mode SFP module TL-SM321A enables transmission over a distance up to 10 km and the speed of this transmission reaches up to 1.25 Gbps. SFP TL-SM321A inserts are equipped with LC/UPC connectors and work with many TP-LINK devices such as routers, switches and media converters.
| Basic technical parameters | |
| Standards and protocols | IEEE 802.3z, CSMA/CD, TCP/IP |
| Wavelength | TX: 1550 nm/RX: 1310 nm |
| Power supply | 3.3 V |
| Certificates | FCC, CE |
| Cable | Single mode optical fibre |
| Type of fibre | 9/125 µm single-mode |
| Maximum cable length | 10 km |
| Transmission speed | 1.25 Gbps |
| Connection type | LC/UPC |
| Environmental conditions | Operating temperature: 0℃~70℃ (32℉~158℉) Storage temperature: -40℃~80℃ (-40℉~176℉) Working humidity: 10%~90%, non-condensing Storage humidity: 5%~90%, non-condensing |
