... support:SS7, PRI, Q.SIG, R2, V5.2; 2)Interface Connector:16 E1, 1 10/100M network, 1 RS232 console ... powerful, reliable and stable signaling converter. Specification:·Signalling support: SS7, PRI, Q.SIG, R2, V5.2;·Interface Connector: 16 E1(T1), 1 ... expand the capacity through multi stack;·Provide CTI Link API interface for user program control; Physical Specification:ItemSpecificationInput voltage-48V ...