E1/T1/Fractional E1/Fractional T1 DSU/CSU ()01 series unit has one DTE device / DIP switch settings with LED indicators ()02 series unit has four DTE devices and one E1/T1 sub-link/SNMP/Setup and con
4U 19`` Rack type E1/T1/Fractional E1/Fractional T1 DSU/CSU ()Up to 13 hot swapping of E1, T1, or E1/T1 Cards/ SNMP Card ()Two separated power supplies which performance power redundancy ()BNC/Termin
E1/T1/Datacom BERT Performance Analysis ()Alarm and Looping Setting ()VF Access and Measurement ()Pulse Shape, Signal Result ()ABCD Signaling Setting and Display ()Autoconfigure ()Drop and Insert n*6