Nsgarch.....you hit the nail on the head! The first duplex is exactly as you described, so it must be the SP-15a. Mine doesn't have the tag or model #, not sure if it came off or was an early model.
Thanks again for your help, as this will assist in how I integrate it into my system.
Best regards,
Dave
Thanks again for your help, as this will assist in how I integrate it into my system.
Best regards,
Dave