829 Flynn Road
Camarillo, CA 93012

40G 300 Pin Transponders

The 40 Gbps Transponder is a 300 pin MSA compliant module for VSR2000 applications. Using an NRZ line coding scheme, the transmitter section is based on a cost-effective, 1550 nm electro-absorption modulator with a high-performance laser driver.

PIN based low-noise receiver is incorporated to provide optimum performance. A set of advanced, mixed signal Mux and Demux ICs translate the OC-768, STM-256, or G.709 compatible data stream to an SFI-5 compliant, high-speed differential output, allowing direct connection to a framer or FEC IC on the host board.

The transponder also provides controls and monitors for key transponder operations via the 40G 300 pin MSA pin map and the I2C interface, which is fully compliant to the MSA’s I2C Edition 4 Management Interface.


  • Operating Temperature Range from 0°C up to 70°C
  • 40 G 300 pin MSA compliant
  • 40 Gbps NRZ modulation with 16 channel multiplexing and demultiplexing
  • Supports OC-768/ STM-256 (39.8Gbps) and G.709 (43.1 Gbps)
  • Supports VSR200 3R2, 3R3, and 3R5
  • Provides MSA I2C Edition 4 compliant control, monitoring, and alarms for optics management
  • OIF SFI-5 compliant electrical interface
  • 4.5" x 3.5" x 0.65" small form factor
  • 14 W typical, 16 W max power dissipation
  • Optional jitter filter for normal and line timing operations
  • Optional flat case or integrated heat sink
  • Available in both 1550nm and 1310nm


  • SONET/SDH transmission systems
  • 40 G client-side interfaces and metro networking systems
  • Terabit routers/switches using OADM
  • Optical cross-connect systems
P/N Data Rate (Gbps) Wavelength (nm) Reach (km)
GT40-1310TRK 43 1310 10
GT40-1550TRK 43 1550 2