1600G is a traditional WDM model. Single-core supports 1600G capacity. Except for long-distance trunks such as national trunks and old systems such as radio and television, they are basically withdrawn from the network.
6800 is the NGWDM product series. It supports larger transmission bandwidth and more service types. It belongs to OTN equipment and supports both CWDM and DWDM.
SDH equipment: optix 10G (commonly used), 155এস (eliminated), metro 1050 (eliminated), metro 500 (used frequently), 155/622এইচ (metro1000) (commonly used), 2500 (eliminated), metro1100 (eliminated), ওএসএন 2000 (commonly used), 155/622 (metro2050) (eliminated), 2500+ (metro3000) (used), metro 200 (eliminated), metro 100 (commonly used), ওএসএন 500, 155এইচ (eliminated), metro 3100 (eliminated)
NG SDH equipment: optix OSN 2500 (common), ওএসএন 3500 II, OptiX GCP, অপটিএক্স ওএসএন 2500 REG, OptiX OSN 3500T, অপটিএক্স ওএসএন 1500 (common), অপটিএক্স ওএসএন 3500 (common), অপটিএক্স ওএসএন 7500 (common)
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