Illinois-based Janus which designs, manufactures and distributes M2M products, is offering an interesting GSM/GPRS modem called Terminus GSM864Q. Janus claims "the Terminus encapsulates everything required for wireless M2M capability in one compact, cost-effective solution."
Features:
- Nine user configurable GPIO
- 1 ADC input
- Audio handset Interface (standard interface)
- RS-232 AT command UART interface (DB-9)
- User selectable UART interface (50-pin Header) or DB-9 serial command
- Power supply voltage range 7 - 35VDC
- Internal replacement fuse
- Externally accessible SIM card socket
- GPS option
Download a data sheet here
Donald Wallace in Device Connectivity, 8/1/2007
Link