PRODUCT

A transmission equipment is a communication line that connects a switch to a switch. The transmission system and technology includes: PDH(Pseudo-synchronous Digital Hierarchy), SDH(Synchronous Digital Hierarchy), MSTP(Multi-Service Transfer Platform), ASON(Automatically Switched Optical Network), PTN(Packet Transport Network), DWDM(Dense Wavelength Division Multiplexing), OTN(Optical Transport Network), PON(Passive Optical Network) and so on.

The fundamental of transmission includes:

PDH to SDH, added ring network protection and subnet protection,

SDH to MSTP, Converged TDM and Ethernet layer switching,

MSTP to ASON/NG-SDH, realize Mesh network structure,

MSTP to PTN, complete grouping of switched kernels and so on.