E1 PDH optical multiplexer

BX series PDH optical multiplexer（BX120A/ 240A/ 480A） can realize transparent transmission of the 2M quasi-synchronous group-based signal and service transmission of voice and data. Its transmission capacity is 4/8/16 E1 channel. It can also provide additionally 1 or 4 RS232 asynchronous data channels and 1 channel PCM official telephone without occupying 2M channel.

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