DWDM SFP+ modules use ITU-T DWDM channel wavelengths (C-band 1525-1565nm, 100 GHz or 50 GHz spacing) for wavelength-division multiplexed long-haul transmission over a single fiber pair.
| Pin | Name | Function | Type |
|---|---|---|---|
| TX | TX | DWDM channel optical transmit | BUS |
| RX | RX | DWDM channel optical receive | BUS |