Features
- Supports 800Gb/s aggregate data rate via dual 400GBASE-DR4 interfaces
- 8 × 106.25 Gb/s PAM4 electrical lanes (53.125 GBaud)
- Compliant with QSFP-DD MSA HW Rev 7.0, Type 2B
- Dual MPO-12/APC optical interfaces for parallel single-mode fiber (SMF)
- Based on 1311 nm EML transmitter and PIN receiver
- Transmission distance up to 500 m over SMF
- Supports KP4 FEC (host-side) for error-free operation
- Power consumption: Typical 15.5 W, Max. 18 W
- Single 3.3 V power supply
- Hot-pluggable QSFP-DD form factor
- Supports digital diagnostics monitoring (DDM) via CMIS interface
- Operating case temperature: 0°C to 70°C
- RoHS compliant
Description
The WST-QD8-DR4X2-C is a hot-pluggable optical transceiver module in the QSFP-DD form factor, designed for 800 Gb/s Ethernet applications. The module integrates two independent 400GBASE-DR4 optical interfaces, each paired with a corresponding 400GAUI-4 electrical interface, enabling operation as either a single 800G link or two independent 400G links.
Each optical interface consists of four parallel lanes operating at 53.125 GBaud PAM4 (106.25 Gb/s per lane) over single-mode fiber (SMF). The module utilizes 1311 nm EML transmitters and PIN photodiode receivers, supporting transmission distances of up to 500 m via dual MPO-12/APC optical connectors.
The module is compliant with QSFP-DD MSA and relevant IEEE 802.3 standards, and is designed for use in systems employing host-side KP4 FEC to achieve reliable link performance.
Specification
