Hi!
NS4: 1 x 100G line service processing board.
The NS4 board is a line board that supports hybrid transmission of OTN and packet services with a maximum bandwidth of 100 Gbit/s. The NS4 board processes and converts the received service signals into one OTU4 signal carried over an ITU-T G.694.1-compliant DWDM wavelength.
The rate of the NS4 board is 100Gb/s.
For more details, please click the link: NS4
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Thank you!