Everise automatic optical switch is mainly divided into four channel 1*4 optical switch HJ-OS-0416A and four channel 1*8 optical switch HJ-OS-0432A, using advanced high-performance core devices to control, with stable work, fast switching speed, low insertion loss, low temperature related loss and polarization related loss, low back loss, high isolation. The long life of the switch is widely used in optical transmission system, test system and monitoring field. The tester has abundant communication interfaces, which can support RS232 and LAN communication.