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LTA1311 QSFP28 PSM4 Transceiver
4 x25.78Gb/s 1310nm Transceiver

TA1311 is a QSFP28 Optical transceiver for 4 x 25Gb/s optical links. It is compliant with the QSFP28 PSM4 specifications. It operates at 25.78Gb/s up to 500m over single-mode fiber.

Part Number Package Interface Reach Temp Fiber Type Wavelength Rate Tx Output Rx Input
LTA1311-PC+ QSFP28 PSM4 mpo 500m C Single-mode 1310nm 4x25Gb/s -5~2.0dBm -11.35dBm***

• Infiniband EDR interconnects.

• IEEE 802.3bm Ethernet 


• High performance computing interconnect

• 4 independent parallel optical channels
• Each channel data rate up to 25.78Gb/s with integrated CDR
• Hot Pluggable
• Up to 500m link on single-mode Fiber 
• Silicon photonics Technology
• CML Compatible electrical I/O
• QSFP28 PSM4 MSA  Compliance
• Optical connectivity via industry standard MPO/MTP terminated fiber ribbon
• Monitors function for bias, transmitted/received power, module temperature, and module supply 
• Case Operating Temperature:
Commercial: 0 to 70ºC
RoHS II Compliance