Sealevel provides WinSSD, a helpful software utility that allows easy verification your synchronous card is working properly. After you install the SeaMAC V5 synchronous software driver onto your system, WinSSD will be located in the SeaMAC folder in the Start menu.
To verify operation of your card, launch WinSSD, open the port and then select RS-232 as your electrical interface. Configure RSET source and TSET source for “SSI Timing BRG” and attach a Sealevel loopback or jumper wire between Tx and Rx (pins 2 & 3). Use the BERT test (Bit Error Rate Test) in the WinSSD application, which will transmit and receive data to confirm that the synchronous serial card is working correctly.