Tus ntse serial rau DCE X.21 serial c.21 serial cisco router cable yog feem ntau siv los txuas Cisco Routers nrog lwm cov khoom siv. Nws muaj qhov 26-} pin ntse serial interface rau ib qho kawg thiab DB15 tus txiv neej DTE interface rau lwm tus. Cov cable no feem ntau yog siv rau kev sib txuas Cisco routers (xws li 1700, 2600, thiab lwm yam khoom siv sib txuas lus thiab kev tswj hwm los ntawm kev sib txuas lus.

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