Product manual
XStream‐PKG‐R™RS‐232/485RFModem–ProductManualv4.2B
©2005MaxStream,Inc.Confidential&Proprietary 20
4.2. Programming the Modem
For information about entering and exiting AT and Binary Command Modes, refer to the
Command Mode section [p17].
4.2.1. AT Command Examples
MaxStream has provided X-CTU software for programming the modem using an extensive list of
AT Commands. The X-CTU software provides an interface that is divided into four tabs that
facilitate the following functions:
• PC Settings tab - Setup PC serial port to interface with an XStream RF Modem
• Range Test tab – Test XStream RF Modem's range in varying environments
• Terminal tab – Configure and read XStream RF Modem parameters using AT Commands
• Modem Configuration tab – Configure and read RF Modem parameters
To install the X-CTU Software:
Double-click the “setup_X-CTU.exe” file located in the MaxStream CD or under the “Downloads”
section of the following web page: www.maxstream.net/helpdesk/. Then follow the prompts of
the installation screens.
PC Settings Tab
As stated in the Serial Communications section; in order to communicate data to the RF modem
through the PC, baud (serial data rate), data bit, parity and stop bit settings on the PC serial port
must match those of the RF modem. The PC Settings tab provides a software user interface that
facilitates the modification of PC serial port settings.
PC Setup
1. Set the DIP Switch to RS-232 mode. Switch 1 is ON (up) and the remaining 5 switches are
OFF (down).
2. Connect the male DB-9 connector of the PC with the female DB-9 connector of the RF
modem using an RS-232 cable.
3. Power the RF modem through the power connector.
4. Launch X-CTU Software and select the PC Settings tab; then select parameter values from
the dropdown lists that match the current parameter values of the RF modem.
[Refer to Table 3.1 on p12 for more information.]
Figure4.2. RFModemConfigurationsthroughaSerialCable
Terminal Tab
A terminal program has been built into the X-CTU software and is located under the Terminal tab.
The Terminal tab provides an easy-to-use interface for programming the modem.
Multiple AT Commands. Multiple AT commands can be entered on one line with one carriage
return at the end of the line. Each command must be delimited by a comma (spaces in between
are optional). The “AT” prefix is only sent before the first command and should not be included
with subsequent commands in a line.
System Response. When a command is sent to the modem, the modem will parse and execute
the command. Upon successful execution of a command, the modem returns an “OK” message. If
execution of a command results in an error, the modem returns an “ERROR” message.