ZMUX-128 is an E1 protection switching device. It adopts a 19-inch 2U high chassis design, which can realize automatic switching function for two sets of E1 signals (lines) with different routes, and meet 8 important E1 signals for 16-channel E1 line protection transmission.

ZMUX-128 has 4 DB37 connectors. Two DB37 connectors provide 8 main E1 interfaces and 8 standby E1 interfaces. The other 2 DB37 connectors can provide 8 important user E1 interfaces. Enter two sets of E1 lines provided by different routes to complete 8 important E1 signal protection functions.