An optical transceiver device has an optical transceiver component, an O/E conversion substrate and a switch control substrate. The optical transceiver component is connected to the first, second optical fiber network equipments for the transmission of optical signal, respectively. The O/E conversion substrate is electrically connected to an in-line equipment at a first location for transmission of electrical signal, and may convert the received optical signal into the electrical signal or convert the received electrical signal into the optical signal. The switch control substrate is electrically connected with an optical switching switch and is connected with the in-line equipment at a second location to receive a control signal for the optical switch from the in-line equipment such that the optical switching switch operates at an normal mode or an bypass mode to guarantee normal network communication of the first, second optical network equipment.