Summary of Contents for Coyote DataCom DR-915
- Page 1 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.com...
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Page 2: Table Of Contents
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ TABLE OF CONTENTS General Information ................3 RF Exposure Statement .................3 Configuration..................6 Specifications..................14 DR-915 Mechanical Overview............... 15 Pin Definitions..................16 Approved Antennas................18 In-System Configuration..............19 FCC Compliance Warning and Class B Statement ........24 INTEGRATOR’S... -
Page 3: General Information
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. -
Page 4: Rf Exposure Statement
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ADIO 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. - Page 5 DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ADIO ONFIGURATION Default Settings Serial Baud ................9600 bits/second Port......................UART RX buffer size .................. 190 bytes* TX buffer size .................. 190 bytes* CTS assert ..................180 bytes* CTS de-assert .................. 150 bytes* TX assert.................180 bytes*/5 mS...
- Page 6 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. Start the program by locating and double clicking on the “Programmer” icon. This will launch the configuration program and display the screen below.
- Page 7 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.
- Page 8 DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Repeater INTEGRATOR’S Revision A GUIDE...
- Page 9 The default setting will be adequate for most applications. Acknowledgement (Ack-Back™) The DR-915 has powerful, built-in, path management features designed to make OEM integration quick and easy. Activating packet acknowledgement will virtually guarantee all data transmitted is received. Any packet transmitted by the DR-915 is then acknowledged by the receiving radio.
- Page 10 This method of group code translation guarantees that data is transferred through the repeater and not directly between radios. When the DR-915 is in Ack-Back™ mode and there are repeaters in the system, the amount of time needed to receive packet acknowledgements increases. By specifying the number of repeaters in the Configuration program, this delay is calculated and the radio is updated correctly.
- Page 11 ___________________________________________________________________________________________ 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.
- Page 12 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.
- Page 13 DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ On-Sync Signal Monitoring INTEGRATOR’S Revision A GUIDE...
- Page 14 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.
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Page 15: Configuration
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 D ADIO PECIFICATIONS Overall Frequency ..................902-928 MHz Frequency Control..............PLL Synthesizer Transport ..........Transparent, Point-to-Point Guaranteed Data Interface ........ Asynchronous TTL, Synchronous Serial (SPI) Channels ...................... 62 Configuration.........Windows98™ Application using PC Serial Port Duty Cycle............. -
Page 16: Dr-915 Mechanical Overview
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio ADIO ARDWARE NTERFACE DR-915 Mechanical Overview INTEGRATOR’S Revision A GUIDE... -
Page 17: Pin Definitions
DR-915 OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR-915 Data Radio ADIO ARDWARE NTERFACE Pin Definitions for Connector P2 FUNCTION Ground Receive Data Transmit Data Reset SPI Clock SPI MISO SPI MOSI PIN 1 – Ground Power and signal ground for the data radio. - Page 18 PIN 7 – SPI Clock This is the SPI clock signal. Data is clocked into and out of the DR-915 on the rising edge. This pin is also used for updating the code in the radio.
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Page 19: Approved Antennas
___________________________________________________________________________________________ DR-915 Data Radio PPROVED NTENNAS The DR-915 may only be used with one of the following antennas without obtaining further approvals. • Antennex model AX-FG9026 omni directional base station antenna • Antennex model AX-B8956C collinear mobile antenna • Cushcraft model CCPC906N Yagi antenna INTEGRATOR’S... -
Page 20: In-System Configuration
DR-915 D ADIO YSTEM 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. General Structure... - Page 21 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)
- Page 22 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! CAUTION! The radio software performs no validation of settings. Great care should be taken when programming any of these settings.
- Page 23 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.)
- Page 24 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.)
- Page 25 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...
- Page 26 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.
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