... E1(T1); 2)16 SS7 links, 16 PRI; Description:NC-AD300D is designed and manufactured by NiceComm according to International Telecom Standard, solves any signaling ... NC-AD300D is a cost effective, powerful, reliable and stable signaling converter.Specification:·Signaling support: SS7, PRI, Q.SIG, R2, V5.2;·Interface Connector: 16 E1 ... 1 Signaling Convert Between SS7, ISDN PRI, V5.2, R2, Q.931;Figure 2 ...