User's Guide

10
2. Serial Interface Between Application DTE
This unit can be easily integrated into anywhere of the wireless modem adopted
device.
1. RESET : External Reset 11. SENSE4 : Status Input 4
2. TXD : Transmit Data 12. DSR : Data Set Ready
3. PWRON : RPM Power On/Off 13. MAGWAIT : Message Wait
4. RXD : Receive Data 14. DCD : Data Carrier Detect
5. SENSE1 : Status Input 1 15. INRANE : In Range Indicator
6. RTS : Request to Send 16. RI : Ring Indicator
7. SENSE2 : Status Input 2 17. LOWBATT : Low Battery
8. CTS : Clear to Send 18. 5V PWR : 5V Power Supply
9. SENSE3 : Status Input 3 19. GND : Ground to Host
10. DTR : Data Transmit Ready 20. 5V PWR : 5V Power Supply
INTERFACE CIRCUIT OF CNI-803D