这个是infieon的SDFE-4的芯片资料，是有关HDSL传输的，我可是费很大劲才弄到的,This is infieon the SDFE-4 chip data transmission is about HDSL, I get劲才But costs a lot of

这个infieon的HDSL的SDFE-4的图纸，网上一般可是找不到的哦，一定珍惜哦-HDSL this infieon the SDFE-4 of the drawings, on-line in general but can not be found Oh, oh, must cherish