General information:
ETH+4FX 2M Voice MUX(FE1/10-100BaseT+4FXO is a new-style multiplexing device. Provide conversion from 1channel framing E1 interface to 10/100BaseT Ethernet interface, transmit 1 to 4 voice signals through E1 channel; FXS connect to the phone, FXO inset into PBX extension line.
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