1、Adopt photoelectric isolation technology to isolate the electrical and ground circuits of both RS-232 devices, which protects the communication equipment from the disturbance of power supply grounding circuit and surge, obviously improves the reliability and stability of the communication system. 2、Uses double-line balanced transmission, the single-end transmission mode of RS-232 interface is changed, greatly enlarges the communication distance. 3、There are 4,6 and 8 lines for power supply. Four lines can transmit a pair of data signals. Six lines and eight lines can also transmit a pair or two pairs of control signals. 4、Small size, no special requirements for conductor wires, no external power supply required, plug and play, convenient to use. 5、Widely used in point-to-point RS-232 communication, multi-user terminal and host connection, RS-232 remote control system, program-controlled switch billing terminal and satellite receiver. Features: Adopt photoelectric isolation technology to isolate the electrical and ground circuits of both RS-232 devices, which protects the communication equipment from the disturbance of power supply grounding circuit and surge, obviously improves the reliability and stability of the communication system. Uses double-line balanced transmission, the single-end transmission mode of RS-232 interface is changed, greatly enlarges the communication distance. There are 4, 6 and 8 lines for power supply. Four lines can transmit a pair of data signals. Six lines and eight lines can also transmit a pair or two pairs of control signals. Small size, no special requirements for conductor wires, no external power supply required, plug and play, convenient to use. Widely used in point-to-point RS-232 communication, multi-user terminal and host connection, RS-232 remote control system, program-controlled switch billing terminal and satellite receiver. Specification: Item name: RS232 to RS232 photoelectric isolation converter Isolation voltage: 2500V continuous or 7500V pulse Transfer rate: Up to 57.6kbps Item size: 6.4 * 3.3 * 1.7cm /2.52 * 1.3 * 0.67in(L * W * H) Item weight: Approx.22.4g /0.79oz Package weight: 26g /0.92oz Package list: 1 * RS232 to RS232 photoelectric isolation converter 1 * RS232 to RS232 photoelectric isolation converter