TXD2SA-12V-1 TXD2SA-12V-1-W TXD2SA-12V-1-X TXD2SA-12V-3 TXD2SA-12V-3-X TXD2SA-12V-3-Z TXD2SA-12V-4 TXD2SA-12V-4-X TXD2SA-12V-4-Z TXD2SA-12V-6