2108 is a cost effective, 1 RU chassis and multi-service WDM transmission platform which provides 8 wavelengths for point to point application, or 4 wavelengths ring application per device, more wavelengths application is possible by stacking multiple boxes at each location. Each channel port supports bit rate from 1Gb/s to 10Gb/s. It integrates 3R (CDR) for every channel to get better performance. LLF and TX sync functions are also supported, and can be configured by software. It supports 1+1 optical channel and optical line protection. It is stackable for future expansion. 2108 complies with standard of ITU G.709, FCC, RoHS and VCCI.