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Mar 26, 2003, 5:18 AM
whepin
New User (1 post)
Mar 26, 2003, 5:18 AM
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WAN E1?
Help me please,i am a novice about WAN.I have many questions to ask,please take pains,thx.

1,what is framed and unframed E1,and what is frational E1 and framed E1?

2,who knows the diffrence between DSU and DTU?