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I need to configure telnet capabilities on the Aux port of a 3660 router, using RJ45 on the Aux port and DB9 cable to an NMS port of a T1 Inverse Multiplexer (DL3800).
Fernan, Un CSU/DSU es utilizado cuando vas a connectar una linea de Communicacion de Datos ya sea Frame-Relay, PPP, T3 ect.. El CSU/DSU puede ser interno o externo.. Un modem lo usas como una entrada auxiliar a tu Router y funciona en cualquier linea...