User's Manual

9XTend™ OEM RF Module - Product Manual v2.x6x

X-CTU Software

X-CTU is a Digi-provided software program used to interface with and configure Digi RF Modules.

The software application is organized into the following four tabs:

 PC Settings tab - Setup PC serial ports for interfacing with an RF module

 Range Test tab - Test the RF module's range and monitor packets sent and received

 Terminal tab - Set and read RF module parameters using AT Commands

 Modem Configuration tab - Set and read RF module parameters

Figure B-11. X-CTU User Interface (PC Seings, Range Test, Terminal and Modem guration tabs)

NOTE: PC Setting values are visible at the bottom of the Range Test, Terminal and Modem Configura-

tion tabs. A shortcut for editing PC Setting values is available by clicking on any of the values.

Installation

Double-click the "setup_X-CTU.exe" file and follow prompts of the installation screens. This file is

located in the 'software' folder of the Digi CD and also under the 'Downloads' section of the follow-

ing web page: www.maxstream.net/support/downloads.php

Setup

Serial Communications Software

A terminal program is built into the X-CTU Software. Other terminal programs such as "HyperTer-

minal" can also be used to configure modules and monitor communications. When issuing AT Com-

mands through a terminal program interface, use the following syntax:

Figure B-12. Syntax for sending AT Commands

NOTE: To read a parameter value stored in a register, leave the parameter field blank.

The example above issues the DT (Destination Address) command to change destination address

of the module to "0x1F".

To save the new value to the module’s non-volatile memory, issue WR

(Write) command after modifying parameters.

To use the X-CTU software, a module assembly (An RF module mounted to an interface Board)

must be connected to a serial port of a PC.

NOTE: Failure to enter AT Command Mode is most commonly due to baud rate mismatch. The

interface data rate and parity settings of the serial port ("PC Settings" tab) must match those of

the module (BD (Baud Rate) and NB (Parity) parameters respectively).