DR-915 Data Radio Module INTEGRATOR’S GUIDE Coyote DataCom, Inc. 12721 Benson, Overland Park, KS 66213 • Tel. 913-685-8350 • Fax 913-685-0732 www.coyotedatacom.com • sales@coyotedatacom.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ TABLE OF CONTENTS General Information ..............................................................................3 RF Exposure Statement .........................................................................3 Configuration........................................................................................6 Specifications........................................................
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio General Information This DR-915 is a frequency hopping spread spectrum data transceiver operating in the 902-928 MHz ISM band. The unit is designed to operate under Part 15.247 of the FCC rules and regulations and is designed as an OEM module for integration into other products or field devices.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO R EGULATORY FCC RF Exposure Statement This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device should be installed and operated with a minimum separation distance of 20 cm between the radiator and your body.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO C ONFIGURATION Default Settings Serial Baud ..............................................................................9600 bits/second Port......................................................................................................... UART RX buffer size ..................................................................................
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO C ONFIGURATION The DR-915 is supplied with an easy to use Windows98™ configuration program. The configuration program allows the user to control the operation of their radio network. Installing The configuration software does not require an installation. Simply run it from the CD labeled “DR-915 Tools” or copy it onto another drive.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Click on the “PC Settings” tab, then select which COM port will be used to connect to the data radio. As shown below, COM1 thru COM4 are available. This setting will be retained the next time the configuration program is run. Getting Started To configure the radio, click on appropriate tab for the radio being configured. Then select the radio Communications Port.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Repeater Revision A GUIDE INTEGRATOR’S 8
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Addressing The radio has been designed to be very versatile in its addressing functions. Each radio has its own identifier consisting of a group number and address number. The Source Group specifies which group of radios the unit being configured belongs to. The Source Address specifies the address within that group that uniquely identifies this radio.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ handles missed transmissions as well as performs path management, allowing full duplex communications. The Retries field specifies the number of attempts the radio will make in trying to resend unacknowledged packets. The Timeout field determines how long the radio will wait for the acknowledgement before resending.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Path Management The DR-915 has powerful path management tools to help ensure successful field installations. The Path Management window has two modes, Continuous and On Sync. The Continuous mode allows the installer to look at competing signals on the radios channel and determine if there is a potential interference problem.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ The On-Sync mode allows the installer to look only at radio transmissions for DR-915 or DR-915T radios. When packets are received, the transmissions current and maximum signal strength is displayed along with the packets source group code and address. This allows the installer to ensure there is adequate signal strength with enough fade margin to guarantee reliable operation.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ On-Sync Signal Monitoring Revision A GUIDE INTEGRATOR’S 13
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Code Upgrading The DR-915 has been designed for easy field upgrades. Using the RS-232 Serial Adapter board, a DR915 Programming cable, a standard Serial Configuration cable and a current version of the DR-915 Configuration program running on the users PC, the radio can be re-flashed with new operating code. Special customer code can also be loaded in this manner.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO S PECIFICATIONS Overall Frequency .................................................................................... 902-928 MHz Frequency Control......................................................................PLL Synthesizer Transport .............................................. Transparent, Point-to-Point Guaranteed Data Interface ........................
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio R ADIO H ARDWARE I NTERFACE DR-915 Mechanical Overview Revision A GUIDE INTEGRATOR’S 16
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio R ADIO H ARDWARE I NTERFACE Pin Definitions for Connector P2 PIN 1 2 3 4 5 6 7 8 9 10 FUNCTION Ground CTS DTR Receive Data Transmit Data Reset SPI Clock SPI MISO SPI MOSI VCC PIN 1 – Ground Power and signal ground for the data radio. PIN 2 – CTS Clear to Send. This line will be low when the radio is ready to accept data to transmit.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ interface. Applications requiring RS-232 must use an appropriate interface circuit or a DR-915 RS-232 interface board. PIN 5 – Transmit Data This is the data sent by the user device for the radio to transmit. The data format is a standard, asynchronous stream at the user set baud rate with one start bit (low) followed by 8 data bits and at least one stop bit (high).
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio A PPROVED A NTENNAS The DR-915 may only be used with one of the following antennas without obtaining further approvals.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO I N -S YSTEM C ONFIGURATION The DR-915 may be reconfigured while in a host system. This allows the users system to change the source or destination address and group codes on-the-fly, adding great versatility to the Ack-Back delivery mode.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Read command: - 0x01 (1 byte) beginning address (high byte) (1 byte) beginning address (low byte) (1 byte) number of bytes to be read (1 byte) Write Command: - 0x02 (1 byte) beginning address (1 byte) number of bytes to be written (1 byte) byte #1 to be written byte #2 to be written byte #3 to be written byte #n to be written Path Management: -0x03 (1 byte) -mode (1 byte) (0 = off,
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ Read Software Version Command: - 0x05 (1 byte) This command returns an ASCII string 15 bytes long. Addresses of Settings CAUTION! The radio software performs no validation of settings. Great care should be taken when programming any of these settings. DR915L Address Map: 0x0001 = Channel (Valid range = 0 - 63) 0x0002 = Tx Holdoff (Valid range = 5 - 255. Default = 5.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ 0x000D = AckBack™ Retries (Valid Range = 0 - 255.) 0x000E = AckBack™ Timeout (Valid Range = 50 - 255.) 0x000F = Communications Port (Valid range = 0 is SPI port, 1 is UART) 0x0010 = Number of Repeaters in System (Valid range = 0 - 255.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR915LT Address Map: 0x0001 = Channel (Valid range = 0 - 63) 0x0002 = Tx Holdoff (Valid range = 5 - 255. Default = 5.) 0x0003 = Preamble Bytes (Valid range = 15 - 255. Default = 15. A value of less than 15 will cause improper operation.
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ *Baud Rate settings for the DR915L and Repeater are as follows: 2400 baud = 215 4800 baud = 107 9600 baud = 53 (default) 14400 baud = 35 19200 baud = 26 28800 baud = 17 38400 baud = 12 (not recommended for use) 57600 baud = 8 *Baud Rate settings for the DR915LT are as follows: 2400 baud = 207 4800 baud = 103 9600 baud = 51 (default) 14400 baud = 34 19200 baud = 25 28800 baud = 16 38400
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ATA R ADIO R EGULATORY FCC Compliance Warning Changes or modifications to the DR-915 not expressly approved by Coyote DataCom, Inc. could void the user’s authority to operate this product. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.