E1 channel multidirectional network bridge transmission device and method

The invention belongs to the technical field of narrow-band data transmission and exchange technologies, in particular to a device and a method for transmitting Ethernet data by utilizing an E1 channel. An E1 channel multidirectional network bridge transmission device comprises a 10M/100M Ethernet interface (1), a PHY interface (2), an E1 interface, and a control circuit (3), an FPGA large exchange matrix chip (4), an SDRAM storage (5), an FPGA configuration chip (6) and a CPU (7). The function realized by the invention can overcome the defect that the prior art can not be applied to point to multipoint. Proved by actual tests, the conversion efficiency of the Ethernet data to E1, i.e. the utilization ratio of the E1 channel, reaches 90 percent. When two devices are used in a point to point mode, the prior art can be completely substituted; when a plurality of devices are used, E1 networking can be carried out to realize point-to-multipoint Ethernet data transmission, a local area network is formed between every two networked devices based on the E1 (2M) channel, and the Ethernet data can also be transmitted freely among all the devices; in addition, the Ethernet data can be transmitted cross nodes among the plurality of devices by utilizing the E1 interface.