A.622 Mbit/s B.155 Gbit/s C.140 Mbit/s D.2 Mbit/s
A.比特間插 B.奇偶比特效驗 C.比特間插奇偶效驗 D.奇偶效驗
A.A1A1A1A2A2A2 B.A1A2A3A1A2A3 C.A2A2A2A1A1A1 D.A1A2A1A2A1A2