... Product Description Model name: BD-OP-MUX08 Product function: The voice fiber multiplexer is point to point fiber transmitting equipment, which ... designed on large scale integrated circuit, realizes 1~8 channel voice (FXO, FXS) over fiber and 4 E1 circuit, 1 channels ... +1 Ethernet+4RS232 over fiber, AC220VBD-OP-MUX08-D Voice fiber multiplexer,8 voice mux, 4E1+1 Ethernet+4RS232 over fiber,DC ...