X21 Extenders

X21 ExternderThe 2000 Series S BUS Extender is designed for extending secure telephones over X21 networks. Each unit can accommodate up to 4 secure  ISDN telephones and combine them into an X21 presentation. The system interfaces the secure phone and converts the channels into a fractional E1 G703 stream which in turn is presented to the E1 port of the CW2000 unit , the CW2000 unit then tags the time slots and outputs 4 off X21 channels which can be connected into a X21 network such as DSSS.

S-Bus Extender Datasheet