The Cisco SFP-10G-BXD-I and SFP-10G-BXU-I SFPs operate on a single strand of standard SMF. A SFP-10G-BXD-I device is always connected to a SFP-10G-BXU-I device with a single strand of standard SMF with an operating transmission range up to 10 km. The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices. SFP-10G-BXD-I transmits a 1330-nm channel and receives a 1270-nm signal, whereas SFP-10G-BXU-I transmits at a 1270-nm wavelength and receives a 1330-nm signal. The presence of a wavelength-division multiplexing (WDM) splitter integrated into the SFP to split the 1270-nm and 1330-nm light paths.

Weight & dimensions
Width	13.4 mm
Depth	56.5 mm
Height	8.5 mm
Operational conditions
Operating temperature (T-T)	-40 - 85 °C
Storage temperature (T-T)	-40 - 85 °C
Operating relative humidity (H-H)	0 - 95%
Storage relative humidity (H-H)	0 - 95%
Packaging data
Number of products included	1 pc(s)
Performance
SFP transceiver type	Fiber optic
Maximum data transfer rate	10000 Mbit/s
Interface type	SFP+
Single-mode fiber (SMF) supported	Y
Fiber optic connector	LC
Fiber cable diameters supported (core/cladding)	9/125 µm
SFP transceiver standard	BX
Maximum transfer distance	10000 m
Wavelength	1330 nm
Networking standards	IEEE 802.3, IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3u
Cabling technology	10GBASE-BXD
Auto MDI/MDI-X	Y
Features
Hot-Plug support	Y
Certification	MSA
Logistics data
Harmonized System (HS) code	85369010