RoHS Fiber Optical Transceiver 1490nm-TX/1310nm-RX 1000BASE-BX SFP Bidirectional Transceiver

Basic Information
Place of Origin: China
Brand Name: GIGAOPTO
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-B4312-20DC
Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: Single Package, 10 or 20pcs per Tray, 30 or 50 or 100pcs per box, 400 or 600pcs per carton
Delivery Time: 1-5 working days
Payment Terms: T/T, Western Union
Supply Ability: 100,000pcs / month
Detail Information
Form Factor: SFP Data Rate: 1000Mb/s
Wavelength: 1490nm-TX/1310nm-RX Laser Type: DFB BiDi
Connector: LC Simplex Max Reach: 20km (12.4 Miles)
RoHS Compliant: Yes
High Light:

RoHS Fiber Optical Transceiver


Fiber Optical Transceiver 1490nm


1000BASE-BX SFP Bidirectional Transceiver

Product Description

Cisco Linksys Compatible 1000BASE-BX BiDi SFP 1.25Gbps Transceiver Module SMF DOM Simplex LC 1490nm-TX/1310nm-RX 20km





The GIGAOPTO's GTS-B4312-20DC optical transceiver is a single fiber bi-direction 1000Mbps Small Form-factor Pluggable SFP BIDI module for Gigabit Ethernet 1000BASE-BX and Fiber Channel single fiber applications by using 1310nm/1490nm transmitter and 1490nm/1310nm receiver. This 1000BASE-BX SFP module is high-performance, cost-effective, supporting data rate of 1.25Gbps and 20km transmission distance with single-mode fiber (SMF) via simplex LC connector.


It supports digital diagnostic monitoring function that allows real time access to the transceiver operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage by reading a built-in memory with I²C interface.


This transceiver is fully compliant with SFP Multi-Source Agreement (MSA), IEEE 802.3 1000BASE-BX20 and SERDES standard.



  • Fiber Bi-Directional SFP optical transceiver
  • Real Time Digital Diagnostic Monitoring
  • Single +3.3V power supply
  • Hot-pluggable SFP footprint
  • Support up to 1.25Gb/s data links
  • A type: 1310nm FP transmitter /1490nm receiver

B type: 1490nm DFB transmitter /1310nm receiver

  • Up to 20km for SMF transmission
  • BIDI LC/UPC type pluggable optical interface
  • Class 1 Laser International Safety Standard IEC 60825 Compliant
  • AC/AC Coupling according to MSA
  • Ambient temperature range:

Industrial: -40℃ ~ 85℃

Commercial: 0℃~ 70℃

Extended: -20℃ ~ 85℃



  • 1G Fiber Channel
  • Switched Backplane Applications
  • Broadband aggregation and wireless infrastructure
  • Switch to Switch Interface
  • Gigabit Ethernet
  • Router/Server Interface



Compatible Brand Cisco Linksys Compatible P/N MGBBX1D
Product Packaging SFP Bit Rate 1.25Gb/s
Connector Type LC Single Max Cable Distance 20km (12.4 miles)
DDM/DOM Yes Cable Type Single Mode Fiber
Storage Temperature -40℃ ~ 85℃ Commercial Temperature Range


0 to 70°C (32 to 158°F)

Center Wavelength 1490nm-TX/1310nm-RX Power Supply Voltage 3.3V
Power Consumption 1.0W Icc 300mA
Optical Components DFB BiDi Receiver Type PIN
Transmitter Power -9~-3dBm RX Sensitivity <-20dBm
Extinction Ratio (ER) >9dB Saturation >-3dBm
Protocols Fast Ethernet, Gigabit Fiber Channel, IEEE 802.3z, SFF-8472, MSA Compliant




As a global provider of Brand Compatible Networking products, we Gigaopto have made significant investments over the past few years to support our customers, as well as in our physical infrastructure and test equipment platforms. Our overall trusted engineering and testing capabilities allow us to produce a large selection of Brand Compatible Transceivers.
This (1000BASE-BX BiDi SFP 1490nm-TX/1310nm-RX 20km) is 100% compatible with mainstream optical devices. Below is a table of P/N correspondence for different brand modules. For more information, please don't hesitate to contact us.


Compatible Brand Compatible Part Number Compatible Brand Compatible Part Number
CISCO Linksys MGBBX1D HPE ProCurve J9142B
Juniper SFP-GE20KT14R13 H3C SFP-GE-LX20-SM1490
Brocade E1MG-BXD-20 Dell SFP-GE-BX20D-1490
Alcatel-Lucent SFP-GIG-BX-D20 Extreme MGBIC-BX20-D
HuaWei SFP-GE-20-SM1490    



Ordering Information


P/N Description Data Rate Wavelength Reach Laser Type Media
GTS-B3412-20DC 1000BASE-BX-U BiDi SFP 1.25Gbps 1310nm-TX/1490nm-RX 20km FP Single Mode
GTS-B4312-20DC 1000BASE-BX BiDi SFP 1.25Gbps 1490nm-TX/1310nm-RX 20km DFB Single Mode
GTS-B3512-20DC 1000BASE-BX BiDi SFP 1.25Gbps 1310nm-TX/1550nm-RX 20km FP Single Mode
GTS-B5312-20DC 1000BASE-BX BiDi SFP 1.25Gbps 1550nm-TX/1310nm-RX 20km DFB Single Mode


Contact Details

WhatsApp : +8615989585901