... SS7, PRI, Q.SIG, R2, V5.2; 2)Interface Connector:16 E1, 1 10/100M network, 1 RS232 console; Description:NC-AD300D is designed ... SS7, PRI, Q.SIG, R2, V5.2;·Interface Connector: 16 E1(T1), 1 10/100M network, 1 RS232 console;·Link: 16 SS7 links, 16 ... expand the capacity through multi stack;·Provide CTI Link API interface for user program control;Physical Specification: ItemSpecificationInput voltage-48V ...