A synchronous transmission system with a 4 s frame duration has a total of 5980 bytes, including 154 bytes of transmission overhead. Calculate the line

A synchronous transmission system with a 4 μs frame duration has a total of 5980 bytes, including 154 bytes of transmission overhead. Calculate the line rate of this transmission system and find the maximum client data rate that this transmission system can support, i.e, the payload area rate. 24 bytes of the overhead is used for an embedded data channel to carry network management traffic. Another 18 bytes are used for another data channel to support other administrative functions. 

What is the data rate of each of these embedded channels?