External login architecture SFC

1. A hardware-specific application (custom-made) registers hardware signals. The personnel number or badge number is read from these signals.
2. An SFC API call is made to the SFC External Login Web Service; the call includes the personnel or badge number and the name of the terminal.
3. SFC applicatie maintains a net.tcp connection to the web service so SFC can be notified when an external login comes in.