User`s guide

Connecting the Radio Modem 5-1
Chapter 5
Connecting the Radio Modem
This section details the radio modem serial pin connections and describes various examples
of connecting the radio modem to real world devices.
Serial Pinouts
The RMX232 DTE interface is via a 9 way female D type connector fitted to the side of
the radio modem.
The DTR signal into the Radio Modem is used to wake up the Radio Modem. The
Radio Modem can be forced into a permanently power up state by disabling DTR
control in the configurator.
Pin
2
3
4
5
7
8
Other pins
Connection (DTE naming)
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Request To Send
Clear To Send
No Connection
Direction
Output
Input
Input
-
Input
Output
-
Radio modem DTE connector connections
User’s Guide