1)Interface Connector:8 E1(T1), 1 10/100M network, 1 RS232 console; 2)Convert any signalling between SS7, ISDN PRI, Q.SIG, R2.. Description:After has gone through 10 versions, NC-AD300D-P8 performance and functionality have become getting better and better.with a powerful processor, embedded operating system. It Widely used in the signaling conversion, small and large clients tandem jumper ...