Part numbers: 10404, 100G-CWDM4-QSFP2KM
The CWDM (coarse wavelength division multiplexing) QSFP28 module provides a 100 Gb optical connection using LC duplex optical connectors over single-mode fiber at distances up to 2 km.
This optical module integrates four data lanes on separate CWDM wavelengths in each direction for 100 Gbps aggregate bandwidth. Each lane operates at 25.78 Gbps using single-mode fiber.
Note that 100 Gb CWDM4 uses different wavelengths for the four 25 Gb data lanes than are used for 100 Gb LR4. As a result, 100 Gb CWDM4 interfaces are not compatible with 100 Gb LR4 interfaces.
For a complete listing of hardware compatible with these modules, see the Extreme Optics Compatibility website.
Transmission distances are provided as a nominal guide only. To determine achievable distances, refer to the device's optical specifications and to the specific characteristics of your fiber installation.
The CWDM4 QSFP28 module conforms to the 100G CWDM4 MSA 2 km Optical specification.
The following table lists specifications for the CWDM4 QSFP28 module. The specifications listed are for part 10404. Specifications for other parts are substantially similar but might not be identical.
| Parameter | Minimum | Maximum |
|---|---|---|
| Transmitter | ||
| Average launch power, each lane | -4.0 dBm | 2.5 dBm |
| Center wavelength | 1264.5 nm | 1277.5 nm |
| 1284.5 nm | 1297.5 nm | |
| 1304.5 nm | 1317.5 nm | |
| 1324.5 nm | 1337.5 nm | |
| Receiver | ||
| Average receive power, each lane | -10 dBm | 4.5 dBm |
| Operating wavelength | 1264.5 nm | 1277.5 nm |
| 1284.5 nm | 1297.5 nm | |
| 1304.5 nm | 1317.5nm | |
| 1324.5 nm | 1337.5 nm | |
| Link | ||
| Operating distance: SMF (single-mode fiber) | 2 m | 2 km |