intelligent pcm120 offers 16 e1 directions and 120 voice channels. All
of the 512 time slots can be cross-connected flexibly.
the 1u4e1pcm30 offers 4 e1 and 30 channels. All time slots support flexible
the ompcm30 mux provides 1 e1 and 1 optical interface as well as 30 voice
channels. It can connect directly with 2m interface of the
program-controlled switchboards, such as harris, ericsson, siemens and