The CPQ-CE-ER-CDA02 is a single mode QSFP28 transceiver designed for 100 Gigabit Ethernet 100GBASE-ER4 applications. The module integrates four LAN-WDM optical lanes operating in the 1310nm wavelength window. Each transmit lane utilizes a LAN WDM EML laser and each receive lane uses a PIN photodiode receiver.

Each lane supports 25.78Gbps, providing an aggregate data rate of 103.125Gbps. The module supports transmission distances up to 40km over standard single mode fiber without FEC. The transceiver complies with QSFP28 MSA (SFF-8661 and SFF-8636) and IEEE 802.3bm CAUI-4 electrical interface standards. It operates from a single 3.3V power supply and uses a duplex LC optical connector. Digital Diagnostic Monitoring (DDM) is supported via a two-wire serial interface.

The module operates over a commercial case temperature range of 0?C to +70?C and is suitable for metro networks, long-haul 100G Ethernet links, and data center interconnect applications requiring extended reach.