PRODUCT FEATURES  

1. 4 CWDM lanes Mux/De-mux design
2. CWDM TOSA integrated Driver
3. Build in CDR on both TX and RX
4. Up to 25.78Gbps Data rate per wavelength
5. Up to 2km transmission on SMF
6. Electrically hot-pluggable
7. Digital Diagnostics Monitoring Interface
8. Compliant with QSFP28 MSA with LC connector
9. Case operating temperature range:0°C to 70°C  
10. Power dissipation < 3.5 W

 APPLICATIONS

1. 100G Ethernet &100GBASE-LR4

STANDARD

1. Compliant to IEEE 802.3ba and 100G CLR4/CWDM4
2. Compliant to SFF-8436
3. RoHS Compliant.

General Description
100G QSFP28 CWDM4 is designed to operate over single-mode fiber system using 4X25 CWDM channel in 1310 band and links up to 2km. The module converts 4 inputs channel of 25Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 100Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 100Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.
The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. Single-mode fiber (SMF) is applied in this module. This product converts the 4-channel 25Gb/s electrical input data into CWDM optical signals (light), by a 4-wavelength Distributed Feedback Laser (DFB) array. The 4 wavelengths are multiplexed into a single 100Gb/s data, propagating out of the transmitter module via the SMF. The receiver module accepts the 100Gb/s optical signals input, and de-multiplexes it into 4 CWDM 25Gb/s channels. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA.
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA) and compliant to IEEE 802.3ba.