Multiplexing equipment is synthesized in multichannel protection

The utility model provides a multiplexing equipment is synthesized in multichannel protection, it includes master control center and professional dish storage device, master control center and professional dish storage device be through 2 at least E1 link communication connection, and one of them E1 link communication connection is the main link, and one or more is the standby protection link in addition, the master control center is equipped with and is used for detecting the E1 chain detecting element of channel time slot, a crosspoint for exchanging idle time slot, a switch unit and power supply unit that is used for conversion standby protection link under the full up circumstances of main link trouble or time slot, through carrying out loop detection to the E1 link, exchange idle time slot, make each speech signal transmit on a E1 link through the mode of judging the time slot free time, can realize 128 way pronunciation transmission or more on arbitrary E1 chain way, and the switch unit can be under the full up condition of main link trouble or time slot, switch over to the standby protection chain on the road.