The 1000BASE‑BiDi SFP modules provide full‑duplex 1.25 Gb/s Gigabit Ethernet transmission over a single strand of single‑mode fiber using bidirectional (dual‑wavelength) technology.
Each BiDi module transmits and receives optical signals on separate wavelengths through a simplex LC connector, cutting fiber usage by 50%.
Compliant with IEEE 802.3z (1000BASE‑BX) and SFP MSA, these modules combine low power consumption, high reliability, and broad interoperability with major switch and router vendors.
Technical Specifications
- Data Rate: 1.25 Gbps (Gigabit Ethernet / 1G Fibre Channel)
- Wavelength Pairs: Tx 1270 nm / Rx 1330 nm, or Tx 1330 nm / Rx 1270 nm (other options 1550 / 1490 nm)
- Transmission Distance: 10 km – 120 km (depending on optical budget)
- Connector Type: Simplex LC (single fiber)
- Optical Components: DFB / FP Transmitter · PIN or APD Receiver
- Power Consumption: ≤ 1.0 W
- DDM/DOM Support: Optional per SFF‑8472 digital diagnostics
- Compliance: IEEE 802.3z (1000BASE‑BX) · SFP MSA · RoHS 6 · FCC · EMC Directive
Main Features
- Single‑fiber bidirectional operation, reducing fiber infrastructure costs by 50%
- Supports 1.25 Gbps full‑duplex Gigabit Ethernet transmission
- Available for link distances from 10 km to 120 km using different DFB or FP optics
- Low power operation (≤ 1 W) with hot‑pluggable SFP form factor
- Compatible transmit/receive pairs (1270/1330 nm or 1330/1270 nm)
- DDM/DOM availability for real‑time monitoring and maintenance
- Designed for FTTx, Metro access, and enterprise backbone applications
- Interoperable with Cisco, Juniper, Huawei, Nokia, and other OEM platforms
Applications
- FTTx and Metro Ethernet aggregation nodes
- Gigabit Ethernet uplinks and access switches
- Single‑fiber campus and enterprise LAN links
- Telecom and industrial backhaul networks
- Media converters and optical transmission equipment
Related Keywords: 1000BASE‑BiDi SFP, 1G BiDi SFP transceiver, single‑fiber Gigabit SFP, Gigabit BiDi LC SFP, 1.25 Gbps BX SFP module, MEFiber 1000BASE‑BX SFP.
FAQ – 1000BASE‑BiDi Gigabit SFP Modules
1. What is a 1000BASE‑BiDi SFP module?
It is a Gigabit Ethernet SFP that transmits and receives on two different wavelengths over a single fiber using a simplex LC interface.
2. How does BiDi transmission work?
BiDi modules use WDM filters to separate Tx and Rx channels on a single fiber, requiring complementary pairs (e.g., Tx1270/Rx1330 ↔ Tx1330/Rx1270).
3. What are the common wavelength pairs of 1G BiDi SFPs?
The most common configurations are 1270/1330 nm and 1330/1270 nm, with options for 1490/1550 nm and 1550/1490 nm for extended reach.
4. What is the maximum link distance for BiDi SFPs?
Distances range from 10 km (FP) to 120 km (DFB transmitter + APD receiver) over SMF.
5. Are 1000BASE‑BiDi SFPs compatible with standard duplex SFPs?
No. BiDi modules must be used in matched Tx/Rx pairs and cannot operate with duplex (SX/LX) modules on the same link.
6. Do BiDi modules support digital diagnostic monitoring?
Yes. Models with SFF‑8472 DDM provide real‑time data including temperature and optical power levels.
7. Can BiDi SFPs be used in industrial environments?
Yes, industrial‑rate models rated −40 → +85 °C are available for rugged and outdoor deployments.
8. Where are 1000BASE‑BiDi SFPs commonly used?
They are widely used in FTTx networks, campus LANs, and access switch uplinks requiring fiber optimization.