... ISDN PRI, Q.SIG, R2.. Description:After has gone through 10 versions, NC-AD300D-P8 performance and functionality have become getting ... , Q.SIG,R2, V5.2;·Interface Connector: 8E1,1 10/100M network, 1 RS232 console;·Link: 8 SS7 links, 8 ... Type of ConnectorPCME1,G.703CC4/BNC/RJ45Ethernet Port10/100Base-T,IEEE802.3RJ45Serial PortRS232RJ45ItemSpecificationInput voltage-48v DC or 200~240V ...