Dublin, Ireland, September 23, 2019 – Eoptolink Technology Inc., Ltd (SZSE: 300502) today announced the full support of CMIS 4.0 for its 400G QSFP-DD and OSFP optical transceivers.

CMIS 4.0 enables customers to upgrade MCU and DSP firmware from the host system, offer additional digital diagnostics and has an improved state machine.
Diagnostic functions include
• PRBS Generation and Checking
• Loopback functions
• SNR data
• PAM4 Level Transition Parameters
• Pre-FEC BER and Uncorrected Error Count data

“We are pleased that our complete OSFP and QSFP-DD transceiver portfolio can now be ordered with either CMIS 3.0 or CMIS 4.0 support”, says Sean Davies, Director of Sales in Americas.