Description
The Huawei SFP-10G-ER-SM1270-BIDI is a 10G Bi-Directional (BiDi) SFP+ optical transceiver designed for long-distance single-mode fiber communication.
Main Description
Speed: 10 Gigabit Ethernet (10GBASE-BX)
Fiber Type: Single Mode Fiber (SMF)
Connector: LC Simplex
Transmission Type: BiDi (single fiber communication)
Wavelength:
TX: 1270nm
RX: 1330nm
Distance: Usually available in 40km versions officially; some compatible vendor versions are marketed for 80km/120km links
DDM/DDMI: Supported (Digital Diagnostic Monitoring)
Form Factor: SFP+
Temperature: 0°C to 70°C
What BiDi Means
This module uses only one fiber core for both transmit and receive by using different wavelengths.
It must be used with the opposite pair module:
Side A Side B
TX 1270nm / RX 1330nm TX 1330nm / RX 1270nm
If both sides use the same wavelength module, the link will not work.
DDM Feature
DDM (Digital Diagnostic Monitoring) allows monitoring of:
Optical TX power
RX power
Temperature
Voltage
Laser bias current
Useful for troubleshooting fiber links and monitoring signal health.
Typical Usage
Used in:
Huawei switches
OLT uplinks
Data centers
Metro Ethernet
Long-distance fiber backbone links
Important Note About “120km”
Huawei official documentation for the SFP-10G-ER-SM1270-BIDI commonly specifies up to 40km transmission distance
Call Us or WhatsApp For confirm Pricing and stock availability.
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