CDR-915L Data Radio Module INTEGRATOR’S GUIDE Coyote DataCom, Inc.• 3941 Park Drive, Suite 20-266, El Dorado Hills, CA 95762 • Tel. 916-933-9981 • Fax 916-913-0951 www.coyotedatacom.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ TABLE OF CONTENTS General Information and Labeling Requirements ..................... 3 Configuration ..................................................................... 5 Specifications ................................................................... 13 CDR-915L Mechanical Overview .......................................... 14 Pin Definitions ...................................
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L Data Radio General Information and Labeling Requirements This CDR-915L is a data transceiver operating in the 902-928 MHz ISM band. The unit is designed to operate under Part 15.249 of the FCC rules and regulations and is designed as an OEM module for professional integration into other products or field devices.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO C ONFIGURATION Default Settings Serial Baud .......................................................... 9600 bits/second Port..................................................................................... UART RX buffer size ............................................................... 180 bytes* TX buffer size .............................................
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO C ONFIGURATION The CDR-915L is supplied with an easy-to-use Windows™ 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 “CDR-915L Tools” or copy it onto another drive.
CDR-915L 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 to select the radio type being configured. Then select the radio Communications Port.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Radio Options Repeater Options Revision M INTEGRATOR’S GUIDE 7
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Addressing The radio has been designed to be very versatile in its addressing functions. Each radio unit 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ data. While reducing throughput, this feature also handles missed transmissions as well as performs path management, allowing full duplex communications. The numeric value populated in the Retries field specifies the number of attempts the radio will make in trying to resend unacknowledged packets.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Path Management The CDR-915L 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 radio’s channel and determine if there is a potential interference problem.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ The On-Sync mode allows the installer to look only at radio transmissions for CDR-915L radio. When packets are received, the transmission’s 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Code Upgrading The CDR-915L 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 CDR-915L/LT Configuration program running on the user’s PC, the radio can be re-flashed with new operating code. Special customer code can also be loaded in this manner.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO S PECIFICATIONS Overall Frequency ................................................................. 902-928 MHz Frequency Control ................................................... PLL Synthesizer Transport .............................. Transparent, Point-to-Point Guaranteed Data Interface ...........................................
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Antenna Connector..........................................
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA 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/Fail SPI MOSI/Sending 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ bit (high). This is a TTL-level interface. Applications requiring RS-232 must use an appropriate interface circuit or a CDR-915L RS-232 interface board. PIN 5 – Transmit Data This is the data sent by the user device for the radio to transmit.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO RS-232 I NTERFACE B OARD The CDR-915I-232 is a serial adapter board that allows the user to easily connect to the CDR-915L Data Radio using a standard DB-9 serial cable. The interface board also provides visual indication of data coming from and going to the user-connected equipment.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ LED Indicators Yellow indicates the radio is ready to accept data from the userconnected equipment. Green indicates data is being sent from the radio to the userconnected equipment. Red indicates data is being sent from the user-connected equipment to the radio.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ DB-9 Pin Out (RS-485) PIN PIN PIN PIN PIN PIN PIN PIN PIN 1 2 3 4 5 6 7 8 9 – – – – – – – – – Unused Unused Unused Unused GND (Ground) is the interface common. Unused RS-485Unused RS-485+ Power Connector Pin Out The power connector should receive 9-15 VDC at 300mA. The 2.5mm x 5.5mm jack is center positive.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO H ARDWARE T IMING Ack-Back™ Handshaking When configured for Ack-Back™ mode, the radio will attempt to resend packets that are not acknowledged as received by the destination radio. While this virtually guarantees that data will be correctly transmitted, there is still the possibility that the destination radio is unavailable.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ If and acknowledgement is not received within the Ack-Back™ Timeout time, the radio will resend the packet up to the AckBack™ Retries setting. If an acknowledgment is received during one of the retries, the SNDING signal will return low, indicating a successful transmission.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO I N -S YSTEM C ONFIGURATION The CDR-915L 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ Command Structure The format of the data bytes for sending a command to the radios is as follows: Read command: - 0x01 (1 byte) - memory select (1 byte) (0 = read from EEPROM, 1 = read from RAM) - 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) - memory select (1 byte) (0 = write to EEP
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ DR915L Repeater Address Map: 0x0001 = Channel (Valid range = 0 – 63) 0x0002 = Preamble Bytes (high byte) (Valid range = 16 - 1000. Default = 16. A value of less than 16 will cause improper operation.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO R EGULATORY FCC Compliance Warning Changes or modifications to the CDR-915L 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.
CDR-915L OEM DATA RADIO MODULE ___________________________________________________________________________________________ CDR-915L D ATA R ADIO R EGULATORY Approved Antennas • • Revision M ¼ Wave Bolt-on (CDI p/n ANT-915) ¼ Wave with 6” coax pigtail (CDI p/n ANT-916PW) INTEGRATOR’S GUIDE 27