Patent ID: 7580635

Claim:
A data transmission method, comprising: creating different identifiers for each transmitting end and each receiving end for indicating the corresponding relationship between the transmitting end and the receiving end; adding to each low-rate service signal the identifier of the transmitting end thereof; multiplexing and converting more than one low-rate service signal into an optical signal with a transmission rate of about 5 Gb/s, and transferring the optical signal with the transmission rate of about 5 Gb/s to a destination node; converting the received optical signal with the transmission rate of about 5 Gb/s into an electrical signal and de-multiplexing the electrical signal to obtain more than one low-rate service signal; a1. deciding according to the identifier set by the transmitting end whether the receiving end is corresponding to the transmitting end, if it is, the receiving end receives the more than one low-rate service signal; otherwise, proceeding to a2; and a2. switching an order of the more than one of low-rate service signals, and the receiving end receives the switched signals.