DNT2400DK DNT2400P RJ-45/DB-9F RJ-11/DB-9F DNT2400 RJ-45 RS232 RJ-11 FT232RL

Items Supplied in the Kit: · · · · · Two DNT2400P radios installed in DNT interface boards

DNT2400DK DNT2400DK Quick Start Guide Items Supplied in the Kit: · · · · · Two DNT2400P DNT2400P radios installed in DNT interface boards (labeled Base and Remote) Two installed U.FL coaxial jumper cables and two 2 dBi dipole antennas Two 9 V wall-plug power suppliers, 120/240 VAC, plus two 9 V batteries Two RJ-45/DB-9F RJ-45/DB-9F cable assemblies, one RJ-11/DB-9F RJ-11/DB-9F cable assembly, two A/B USB cables One DNT2400DK DNT2400DK documentation and software CD Additional Items Needed: · One PC with Microsoft Windows XP or Vista Operating System. The PC must be equipped with a USB port or a serial port capable of operation at 9.6 kb/s. Developer's Kit Operational Notes: 1. DNT2400DK DNT2400DK kits are preconfigured to run at a 500 kb/s RF data rate with 1 mW of RF transmit power. Due to the high sensitivity of the DNT2400 DNT2400 radio module which provides its exceptional range, if the RF transmit power is increased from the default 1 mW, the DNT2400 DNT2400 nodes must be separated by a minimum of 6 feet for 10 mW, or 25 feet for 63 mW in order to reliably link. Developer's Kit Assembly: 1. Observe ESD precautions when handling the kit circuit boards. The components that make up a development board are shown in Figure 1, and are shipped with the DNT2400P DNT2400P radio and U.FL coax jumper cable installed in the interface board. 2. If a DNT2400P DNT2400P radio and/or the U.FL jumper cable has been unplugged after receipt, confirm the DNT2400P DNT2400P is correctly plugged into its interface board with the radio oriented so that its U.FL connector is next to the U.FL connector on the interface board, as shown in Figure 2. Also check the radio's alignment in the socket on the interface board. No pins should be hanging out over the ends of the connector. If needed, reinstall the U.FL jumper as shown in Figure 2. 3. Install the 2 dBi dipole antennas on each interface board. RFM module technical support: tech_sup@rfm.com, Phone +1.678.684.2000, FAX +1.678.684.2001, www.RFM.com Figure 1 Figure 2 4. Figure 3 shows the location of several LEDs that are active during operation. As shown in Figure 4, there are three serial connectors on the interface boards. The RJ-45 RJ-45 connector provides a high-speed RS232 RS232 interface to the DNT2400P DNT2400P's main serial port. The USB connector provides an optional interface to the radio's main serial port. The RJ-11 RJ-11 connector provides a high-speed RS232 RS232 interface to the radio's diagnostic port. Figure 3 Figure 4 5. The DNT Demo utility program runs on the radio's main port. Many desktop PCs have a built-in serial port capable of operation at 9.6 kb/s. The kit runs satisfactorily at the 9.6 kb/s data rate, but not at its fastest throughput. Use the RJ-45/DB-9F RJ-45/DB-9F cable assemblies for serial port operation. Connect the Base interface board to the PC. Labels on the bottom of the interface boards specify Base or Remote. Then power the Base and the Remote with the supplied wall-plug power supplies. RFM module technical support: tech_sup@rfm.com, Phone +1.678.684.2000, FAX +1.678.684.2001, www.RFM.com 5a. Optionally, the DNT Demo can be run from the USB port. Plugging in the USB cable automatically switches operation to the USB connector. The USB interface is based on an FT232RL FT232RL serial-to-USB converter IC manufactured by FTDI. The FT232RL FT232RL driver files are located in the i386 and AMD64 AMD64 folders on the CD, and the latest version of the drivers can downloaded from the FTDI website, www.ftdichip.com. The drivers create a virtual COM port on the PC. Power the Base using one of the supplied wall-plug power supplies. Next connect the Base to the PC with a USB cable. The PC will find the new USB hardware and open a driver installation dialog box. Enter the letter of the drive holding the kit CD and click Continue. The installation dialog will run twice to complete the driver installation. Next power the Remote using the other wall-plug power supply. Figure 5 6. The DNT Demo utility program is located in the PC Programs folder on the kit CD. The DNT Demo requires no installation and can be simply copied to the PC and run. Start the Demo on the PC. The Demo start-up window is shown in Figure 5. Figure 6 7. Click on Connect to open the Select Comm Port Settings dialog box, as shown in Figure 6. Set the baud rate to 9.6 kb/s. Set the CommPort to match the serial port connected to the Base, either the hardware port or the USB virtual serial port. Then click OK to activate the serial connection. RFM module technical support: tech_sup@rfm.com, Phone +1.678.684.2000, FAX +1.678.684.2001, www.RFM.com 8. At this point the Demo will collect data from the Base, filling in data in the Local Radio column on the Demo window as shown in Figure 7. The Status Window should also show that the Remote has joined the Base. Click on the drop down box at the top of the Radio 1 column and select the MAC Address for the Remote. Next press the Start button using the default 1 s Refresh Delay. Figure 7 9. The Demo will display updated data on the Remote in the Radio 1 column, including bar graphs of RSSI (signal strength) and percent packet success rate, as shown in Figure 8. Adjusting the pot on the Remote can be observed on the Potentiometer (ADC1) row. See the DNT2400 DNT2400 Integration Guide for information on other DNT2400 DNT2400 utility programs. Figure 8 RFM module technical support: tech_sup@rfm.com, Phone +1.678.684.2000, FAX +1.678.684.2001, www.RFM.com 10. To perform serial data loop-back testing with the kit, move the two jumpers on the Remote board labeled Ext_TX and Ext_RX to connect the center and right header pins. This disconnects the module's TX and RX pins from the USB and RS-232C RS-232C circuits. Use a banana clip or other short jumper to connect together the two pins on the header labeled J11 (Ext_MICRO). See Figure 9. Attempting loop-back testing by connecting Pins 2 and 3 of the DB9 serial connector can cause erratic behavior due to noise coupling from the serial TX/RX lines into the "weakly" pulled up flow control lines on the board. Figure 9 11. In order to turn off the DCD LED (D4) on the development board in sleep mode, the GPIO_SleepState parameter in the DNT2400P DNT2400P has been set to 0xC0 rather than the factory default value of 0x00. If the DNT2400P DNT2400P is reset to its factory defaults, the DCD LED with remain on in sleep mode until the GPIO_ SleepState is set to 0xC0. See Section 4.2.7 in the DNT2400 DNT2400 Integration Guide for additional information on the GPIO_SleepState parameter. 12. If any difficulty is encountered in setting up your DNT2400DK DNT2400DK, contact RFM's module technical support group. The phone number is +1.678.684.2000. Phone support is available from 8:30 AM to 5:30 PM US Eastern Time Zone, Monday through Friday. The E-mail address is tech_sup@rfm.com. Windows XP and Vista are registered trademarks of Microsoft Corporation. RFM module technical support: tech_sup@rfm.com, Phone +1.678.684.2000, FAX +1.678.684.2001, www.RFM.com Part # M-2400-3001 M-2400-3001 Rev A, 2009.13.05