BAPI BA-SOX Transceiver RS-485 to Single Mode Fiber Optic

When an HVAC communications network has to travel between different buildings BAPI recommends the use of fiber optic cable. Because fiber optic cable is not electrically conductive it is unaffected by electrical disturbances such as lightning strikes, radio transmitters, electrical power distribution system ground variations, etc. Once inside the building envelope the fiber optic transceiver, BA/SOX, converts the fiber optic signal into RS-485 for distribution to controllers in that building. The BA/SOX accepts the fiber cable on connectors along its front edge and RS-485 data on the connector that plugs into the communications repeater backplane, BA/RBP. The BA/SOX converts the RS-485 data on the back plane to a fiber optic signal and sends it out on the transmit fiber cable. The BA/SOX converts the data on the receive fiber into an RS-485 signal on the backplane. A green power LED shows that the unit has 12 VDC power. One red LED for each fiber cable connection will flash when data is transmitted or received.