Application example "Buffer storing fee and call data":

Telephone systems provide fee data with each conversation, which are output directly on the RS232 port of the telephone equipment. Processing this data used to require that a PC with a running receiving program be continuously connected and turned on in order to be able to receive this fee data. The telephone equipments itself generally does not have sufficient buffer storage capacity.

The serial buffer takes the call data until it is queried by the PC. The PC may in the meantime be turned off or used for other purposes. The buffer stores the data in a non-volatile memory, so that power failures do not result in loss of the valuable data. To query the buffer from the PC, use either our small software tool, which generates text or Excel files, or integrate the 3-byte query sequences directly into your fee calculation software.

Converting serial transmission parameters (e.g. baud rate converter):

If you need to connect two terminal devices in serial whose interfaces have different, non-configurable transmission parameters (baud rate, data format and handshake procedure), the RS232 Universal Serial Buffer can be used as a converter.

Since the transmission parameters for the two buffer interfaces can be set independently of each other, it is possible to connect both terminal devices together through the buffer. When the buffer receives data at a port, the format is converted to that of the second device and passed to that device. Upward converting of the transmission speed (baud rate) is also possible using the internal 4 MB memory. The set handshake procedure controls the data flow and prevents the memory from overflowing.

As part of the conversion of the serial transmission parameters baud rate, data format and handshake procedure can be changed.