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1.2 Serial Port Pins: (RS 232 interface)
Figure 2. DB9 Female RS-232 DCE Interface
1.3 Applications:
Example applications for data communications with CMM 900-3W include:
• Packet Data Radio
• SCADA and Telemetry Systems
• Remote gas/water/electric meter readings.
• Factory Automation systems
• Vending Machines
1.4 Your package includes:
• CMM 900-3W unit (Power supply and antenna are optional)
• RS 232 Cable (DB9, M-F)
• This USER GUIDE
Pin No. Signal Name Input/Output
1 DCD Output
2 RXD Output
3 TXD Input
4 DTR Input
5 GND
6 DSR Output
7 RTS Input
8 CTS Output
9 RI Output