GPON SFP Class C++ TX1490nm/RX1310nm 2.5G RX 1310nm 1.25G 20km

Basic Information
Place of Origin: China
Brand Name: Gigaopto
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-SGT21-20DCC
Minimum Order Quantity: 1
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
Supply Ability: 50,000pcs/month
Detail Information
Product Name: GPON OLT Transceiver Wavelength: TX1490/RX1310
Max Reach: 20km Data Speed: TX2.5G/RX1.25G
Type: Class C+ Keywords: GPON OLT Class C+ SFP Transceiver
Connector: SC
High Light:

GPON SFP Class C++


Gpon Class C+


SFP 1.25 G 1310nm 20km

Product Description

Compatible GPON OLT SFP Class C+ TX 1490nm 2.5G RX 1310nm 1.25G 20km SC DDM Transceiver Module





The GIGAOPTO's GTS-SGT21-20DCC is a high performance transceiver module for single fiber communications using a 1490nm continuous-mode transmitter and a 1310nm burst-mode receiver. It is designed to meet ITU G.984.2 Class C+ requirements for optical line terminal (OLT) applications.

The GPON OLT transceiver module provides digital diagnostic information of its operating conditions and status, including transmitting power, laser bias current, module temperature, and supply voltage. Calibration and alarm/warning threshold data are written and stored in the internal memory (EEPROM).

The 1490nm DFB LD transmitter has automatic power control (APC) function and temperature compensation circuitry to ensure stable optical power and extinction ratio over all operating temperature range. The transmitter meets Class 1 eye safety per IEC60825 and CDRH standards.

The receiver has a hermetically packaged APD-TIA (trans-impedance amplifier) pre-amplifier and a limiting amplifier with LVPECL compatible differential outputs. It features a Burst Packet Detect (SD) output which is LVTTL compatible. The SD output will come high after receiving the burst packet.

This SFP transceiver module has done sampling test under most famous brands of routers, switches, servers.

The hot swappable GPON SFP transceiver is ideal for Internet Service Provider (ISP) Gigabit Passive Optical Network (GPON) communication links, other optical links.






Product Packaging SFP Power Supply Voltage 3.3V
Optical Connector SC UPC Maxim Distance 20km
DDM Yes Fiber Type Single Mode Fiber
Warranty 3 years Temperature Range

0 to 70°C (32 to 158°F)

-40 to 85°C (-40 to 185°F)

Data Rate (TX) 2.5Gbps RX Data Rate 1.25Gbps
Center Wavelength 1490nm RX Wavelength 1310nm
Power Consumption <1.5W Total Current 450mA
Laser Type DFB PD Type APD
TX Power +3 to +7dBm RX Sensitivity <-30dBm
Extinction Ratio >8.2dB RX Saturation >-12dBm

SFF-8472, ITUT-984. 




  • Single fiber bi-directional data links asymmetric TX 2488Mbps/RX1244Mbps application
  • 1490nm continuous-mode DFB laser transmitter and 1310nm burst-mode APD-TIA receiver
  • Small Form Factor Pluggable package with SC/UPC Connector
  • LVPECL compatible data input/output interface
  • LVTTL transmitter disable control
  • LVTTL transmitter laser fault alarm
  • Fast LVTTL receiver Signal Detect (SD) indication response
  • Low EMI and excellent ESD protection
  • International Class1 laser safety certified
  • Single 3.3V power supply
  • DDMI function available with internally calibrated mode
  • Digital burst RSSI function to monitor the input optical power level
  • Operating temperature range:

   Commercial: -5°C~70°C

   Industrial: -40°C~85°C

  • RoHS6 Compliance




All of GIGAOPTO's GTS-SGT21-20DCC SFP optical transceiver modules are open sourced, can be coded to be fully compatible with worldwide popular brands' devices, e.g. HUAWEI MA5603T, HUAWEI MA5608T, HUAWEI MA5680T, HUAWEI MA5800T, ZTE ZXA10 C300, ZTE ZXA10 C320, ZTE C600, Alcatel-Lucent 7360, Nokia 7360, C-DATA, VSOL, BDCOM. please refer to the P/N correspondence table. If you are interested in knowing more compatibility, you are always welcome to contact us.


Compatible Brand Compatible Part Number Compatible Brand Compatible Part Number
GIGAOPTO GTS-SGT21-20DCC Huawei 34060694
Alcatel-Lucent 3FE53441BA01 ZTE 033030100160
Nokia 3FE53441BAAA Fiber Home FH-PON-GP-20-C+
Dashan Zhone MXK-GPON-SFP-C+-RSSI Hisense LTE3680P-BC+1DM
Calix 100-03417 Eoptolink EOLS-GT-35-D-ZTE1-DM
Calix 100-05071 TRUHAN THMPRS4343GDA-DM
Ubiquiti UF-GP-C+ Neophotonics 38J0-6537E-KC+
ADTRAN 1442540F1 WTD RTXM167-526
Cisco CGP-SFP-OC SourcePhotonics SPS-43-48H-CP-CDF-SD
Generic SFP GPON OLT C+ Superxon SOGQ4321-PSGB



Broadex D34364-SSCB


Contact Details

WhatsApp : +8615989585901