User's Manual

DR-915 OEM DATA RADIO MODULE
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Revision A INTEGRATOR’S
GUIDE
3
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. When installed using an approved antenna, the user need
only ensure that the radio’s FCC label or a copy of the FCC label is clearly visible on the
outside of the integrated product.
Caution: If this radio is integrated into another product, the user is responsible for
complying with the external labeling requirements as directed in the FCC Rules and
Regulations part 15.19. To avoid obtaining an FCC certification, the user may only use
antennas that have been tested and approved for use with this radio.
The unit operates on 25 discrete frequencies within the ISM band, each frequency
about 800kHz apart. Using a frequency agile phase-locked loop synthesizer, the radio is
able to scan all 25 channels and quickly acquire synchronization with a transmitting
radio.
The radio is connected to a host device using a 10-pin SIP header. This connection
provides the radio with the required DC power source, allows it to be programmed and
configured and provides all I/O lines for both an asynchronous serial as well as an SPI
interface.