The G215 is a universal interface board based on 3U CompactPCI Serial. The physical layer can be realized for each channel individually using SA-Adapters.
SA-Adapters are small universal boards providing the line drivers for legacy serial I/O, fieldbus interfaces and other I/O functions. SA-Adapters typically use 9-pin D-Sub connectors at the front panel and can also be connected to the front panel via ribbon cable. The SA concept enables adding additional I/O interfaces to the G215, enhancing flexibility regarding line transceivers and isolation requirements.
Two SA-Adapters can be mounted directly on the G215, up to six more adapters need more front-panel space and can be connected to the carrier via ribbon cable. The G215 comes in a standard configuration with five predefined functions on 8 HP: two CAN interfaces, two UARTs and one 8-channel digital I/O interface. Accordingly, duagon offers a large variety of SA-Adapters that can be ordered as needed, e.g. for the UARTs.
The board's I/O functions are realized by means of an FPGA, making it a very flexible and inexpensive solution for dedicated serial I/O. The card fits all purposes from a customized I/O combination to a specialized 8-port CAN card or even an intelligent I/O board with a Nios soft core on 4, 8 or 12 HP. duagon also offers an option to access further I/O signals including high-speed interfaces via rear I/O on CompactPCI Serial connectors P3 and P4. The FPGA is loaded automatically from a 4 MB serial flash after powerup. To facilitate updating, this flash is user-accessible.
Configurations of up to 64 MB of DDR2 SDRAM are available to complement the functions of the FPGA.