TimeSlot drop and insert system
Time Slot Extraction and Insertion system consists of node equipment and central convergence server, and node equipment can extract partial time-slots from E1 channel to implement multiplexing transmission of 1/2/4/8 channel(s) of RS232/RS422/RS485 serial port data or Ethernet data, and the node equipment can construct chain network by cascade connection, and the central server can collect serial port data or Ethernet data of E1 time-slots, and upload it via IP mode