Combined with a Nokia 30 or 31 GSM Connectivity Terminal–available separately–the OptoGSM I/O rack transmits machine or environmental data over any Global System for Mobile Communications (GSM) network. The system thus provides everything needed–machine connections, mobile communications and carrier services–to attach to and communicate with remote systems and equipment. The OptoGSM I/O rack is priced at $245 and will be available in the third quarter.