1000BASE-BX Fiber Optical Transceiver SMF 1550nm-TX/1310nm-RX SFP BIDI 20KM

Basic Information
Place of Origin: Shenzhen, China
Brand Name: GIGAOPTO
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-B5312-20DC
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
Name: BiDi SFP Transceiver Form Factor: SFP
Data Rate: 1000Mbps Optical Components: BiDi DFB
Cable Type: Single Mode Fibre Max Distance: 20km (12.4 Miles)
Centre Wavelength: 1550nm-TX/1310nm-RX Max. Power Consumption: 1W
High Light:

1000BASE-BX Fiber Optical Transceiver


Fiber Optical Transceiver SMF



Product Description

Cisco Compatible 1000BASE-BX BiDi SFP SMF 1.25Gbps DOM Simplex LC Transceiver Module 1550nm-TX/1310nm-RX 20km





The GIGAOPTO's GTS-B5312-20DC transceiver is a high performance, cost effective module supporting data rate of

1.25Gbps and 20km transmission distance with single mode fiber (SMF) using 1550nm in transmitter side and 1310nm in receiver side. The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser (the 1550nm DFB laser)and the PIN/TIA. All modules satisfy class I laser safety requirements.


This 1000BASE-BX BiDi SFP transceiver meets the SFP industry standard package utilizing an integral LC-Bi-directional optical interface connector. The digital optical monitoring (DOM) support is present to allow access to real-time operating parameters.


The SFP transceiver is compatible with the Small Form Factor Pluggable (SFP) Multi-Source Agreement (MSA).



  • Operating data rate Up to 1.25Gb/s
  • Single +3.3V power supply and TTL logic interface
  • Excellent ESD protection
  • Metal with Lower EMI
  • Low power dissipation
  • Support Digital Diagnostic Monitor interface
  • A type: 1310nm FP TX /1550nm RX

B type: 1550nm DFB TX /1310nm RX

  • 20km with 9/125 µm SMF
  • BIDI LC/UPC type pluggable optical interface
  • PIN photo receiver
  • Case operating temperature:

Commercial: 0℃~ 70℃

Extended: -20℃ ~ 85℃

Industrial: -40°C ~ 85°C

  • Class 1 FDA Laser Safety and RoHS Compliant


  • Fiber Channel Links
  • Switch to Switch Interface
  • Router/Server Interface
  • Fast Ethernet
  • Switched Backplane Applications



Compatible Brand CISCO Compatible P/N GLC-BX-20D
Product Packaging SFP Bit Rate 1.25Gbps
Optical Connector Simplex LC Link Length 20km (12.4 miles)
Digital Diagnosis Supported Fiber Mode SMF
Storage Temperature -40 to 85°C (-40 to 185°F) Commercial Temperature 0 to 70°C (32 to 158°F)
Center Wavelength 1550nm-TX/1310nm-RX Supply Voltage 3.3V
Power Consumption 1W Icc <300mA
Transmitter Type DFB BiDi PD Type PIN
Optical Output Power -9~-3dBm Receiver Sensitivity <-20dBm
Extinction Ratio >9dB RX Saturation >-3dBm
Power Budget 14dB Transceiver Type BX
Protocols IEEE 802.3z, Fast Ethernet, Gigabit Fibre Channel, MSA Compliant




Gigaopto manufactures and stocks a full range of optical transceivers up to 100G. All of our optical transceiver modules are quality-tested for compatibility with the target switch environment and are 100% compatible with major brands such as Cisco, Brocade, HP, Juniper, Huawei, Alcatel-Lucent, Extreme, Arista, Force10, D-link, 3Com, etc. and offer a 3-year warranty.

For this (1000BASE-BX BiDi SFP TX1550nm /RX1310nm 20km), please refer to the P/N correspondence table. If you need more compatibility, please don’t hesitate to let us know.


Compatible Brand Compatible Part Number Compatible Brand Compatible Part Number
CISCO GLC-BX-20D Dell SFP-GE-BX20-1550
Juniper SFP-GE20KT15R13 Extreme MGBIC-BX20-U-1550
Brocade E1MG-1G-BXD-20 HuaWei SFP-GE-20-SM1550-U



Ordering Information


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

Contact Details

WhatsApp : +8615989585901