ZTE SFP-SDB-GE-S10K Compatible 1000BASE-BX SFP BiDi Transceiver (SMF, 1490nm-TX/1310nm-RX, 20km, LC, DOM)
This ZTE SFP-SDB-GE-S10K compatible SFP BiDi module supports 1G Bi-directional connectivity by using WDM technology. By integrating the 1490nm DFB transmitter and 1310nm PIN receiver into a simplex LC interface, it supports 10km to 20km link distance via a single mode fiber (SMF). Compared with a regular SFP, this BiDi transceiver allows end-users to reduce the total cost of fiber cabling infrastructure by requiring only half of the fiber cables. That provides increased transmission capacity and simplifies installation without the need for new fibers. As a third-party supplier, OPTCORE provides this SFP BiDi at a very affordable price when compared to the original SFP-SDB-GE-S10K. Most importantly, we code and test each unit to ensure it works with the ZTE Gigabit Ethernet switches, routers, servers, and NICs.
Features

Proven Performance
When performance and reliability are vital, use our SFP BiDi module to build your network. OPTCORE transceivers are engineered, produced, and tested in-factory for reliable end-to-end quality.

Proven Compatibility
There’s an easy way to verify compatibility: test in real network devices. OPTCORE SFP BiDi transceivers are tested in multi-switch devices for compatibility to ensure flawless functioning.

Enjoy Massive Saving
Compared to the original transceiver, the OPTCORE SFP BiDi module can save you up to 80% on project and optical networking cabling. You won't find a better combination of quality and affordability.
Specifications
Compatible OEM Part# | SFP-SDB-GE-S10K | Manufacturer | OPTCORE |
Manufacturer Part# | OPB1250-4320DCR | Form Factor | SFP BiDi |
Data Rate | 1.25 Gbps | Wavelength | 1490nm-TX/1310nm-RX |
Media Type | SMF | Max Distance | 20km |
Transmitter Type | DFB | Receiver Type | PIN |
Transmitter Power | -9 ~ -3 dBm | Receiver Sensitivity | < -22 dBm |
Extinction Ratio | > 9 dB | Receiver Overload | > -3 dBm |
Connector | LC Simplex | Power Consumption | 0.9 W |
DDM/DOM | Yes | Compliance | RoHS, CE, REACH SFP MSA(INF-8074i), IEEE 802.3z, SFF-8472 |
Environment | Operating Temperature: 0~70°C Storage Temperature: -40~85°C |
Application | Gigabit Ethernet 1G Fibre Channel Switch to Switch Interface Switch to NIC or Media Converter Interface Other 1G Optical Links |
Shipping Weight | 0.03 kg | Dimensions (LxWxH) | 55.4×13.4×8.5 mm |
Receiver sensitivity measured with a PRBS 27-1 test pattern @1.25Gbps, Bit Error Ratio (BER) ≤1E-12.
Application Diagram
















Key Features
Double Network Capacity without New Fiber Deployment
The regular transceiver requires two fibers to accomplish communications, while the BiDi SFP can communicate over just one fiber strand. By switching to a BiDi transceiver, you can instantly double network throughput with the same fiber infrastructure, and finally save the fiber deployment cost.

Intelligent DOM/DDM for Reliable Networks
With built-in DOM/DDM function, the 1G SFP BiDi module allows users to monitor the fiber link operating parameters in real-time. That ensures a reliable optical network and helps locate network problems quickly.

Optimal Performance and Quality for 1G Networks
Featuring a built-in Semtec chip and reliable BOSA with integrated FP/DFB laser + PIN receiver, the BiDi SFP module delivers low power consumption and stable optical links for 1G Bidirectional networks like Gigabit Ethernet and Fibre Channel. You can rest assured regarding quality and warranty.

Compatibility
- ZTE Gigabit Ethernet Switches
- ZTE Gigabit Ethernet Routers
- ZTE Gigabit Ethernet Firewalls
- ZTE Gigabit Network Interface Card (NICs)
- ZTE Gigabit Fiber Media Converters
- ZTE Gigabit Fiber Mode Converters
- ZTE Network Attached Storage (NAS)
- ZTE 1G SAN Switches
- ZTE Mesh WiFi System with 1G SFP Port
- ZTE 1G SFP WiFi Router
Note: All trademarks, products, and company names mentioned are the property of their respective owners and are used for comparative purposes only. This product is NOT certified or endorsed by ZTE.
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