The Gigalight GQSR-SPO111-LR4C is a dual-rate QSFP28 receiver module designed for use in 100G Ethernet and OTN OTU4 links for Deep Packet Inspection (DPI) up to 10km on SMF. It is compliant with the QSFP MSA, IEEE 802.3ba 100GBASE-LR4, and OTU4 standards. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP MSA. The optical receiver is RoHS compliant.


  • Hot-pluggable QSFP28 form factor
  • Receiver only optical module
  • Supports 111.8Gb/s aggregate bit rate
  • 4 channels PIN ROSA without TOSA
  • Internal CDR circuits on both receiver and transmitter channels
  • 1.5W maximum power dissipation
  • Maximum link length of 10km on SMF
  • Duplex LC receptacles
  • Built-in digital diagnostic functions
  • Operating case temperature range: 0 to 70°C
  • 3.3V power supply voltage
  • RoHS 6 compliant (lead free)


  • 100GBASE-LR4 Ethernet
  • OTN OTU4

Ordering Information

Product Description Product Number
QSFP28, Receiver, 100GBASE-LR4 and OTU4, 111.8Gb/s, 1310nm, 10km, SMF, Duplex LC GQSR-SPO111-LR4C

download attachments : GQSR-SPO111-LR4C 【Preview】