DSS1 protcol stack implements layer 2 and layer 3 of ISDN network (Q.921 and Q.931). The library uses layer 1 conroller based on TEL-KA HDLC controller, implemented in FPGA.
The library can be used for ARM processor applications with real time OS, or for PC implementation (on Linux).
For ARM-based solution, we offer software driver for hardware HDLC controller management. For PC/LINUX platform, we have kernel device driver for communication between layer 1 and layer 2.
Application examples
The DSS1 protocol stack is easily mergable software component for complex devices.
It has been used in number of devices such as: