How is the serial cable wired for the SR 2000 does it look like this?
The SR2000 uses standard RS232 protocol.
Depending on your PC/Laptop, older PC/Laptop use 9-Pin Male socket. New PC/Laptop today use USB for serial connection.
For older PC/Laptop use this cable ...
For new PC/Laptop with no RS232 Port, use this cable ...
This is example of USB to RS232 DB9 Serial Female Converter Adapter Cable, maybe buy from here ...
utechcables.com