User's Manual

DR-915 OEM DATA RADIO MODULE
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Revision I INTEGRATOR’S GUIDE
20
LED Indicators
Yellow indicates the radio is ready to accept data from the user-
connected equipment.
Green indicates data is being sent from the radio to the user-connected
equipment.
Red indicates data is being sent from the user-connected equipment to
the radio.
DB-9 Pin Out
PIN 1 – DCD (Data Carrier Detect) is always held high by the radio.
PIN 2 – RD (Receive Data) is serial data from the radio to the user
device.
PIN 3 – TD (Transmit Data) is serial data from the user device to the
radio.
PIN 4 – DTR (Data Terminal Ready) indicates the user device is ready to
send data to the radio for transmission. When this line is high,
the radio will transmit any data across the RF network. When
this line is low, the radio will process the data as commands.
PIN 5 – GND (Ground) is the interface common.
PIN 6 – DSR (Data Set Ready) is always held high by the radio.
PIN 7 – RTS (Request To Send) is not connected on an RS-232 Interface
board.
PIN 8 – CTS (Clear To Send) is used to indicate to the user device that
the radio can accept more data. When this line is high, the user
device is clear to send more data. When this line is low, the user
device should not send data.
PIN 9 – RI (Ring Indicator) is not connected on an RS-232 Interface
board.
Power Connector Pin Out
The power connector should receive 9-15 VDC at 300mA. The 2.5mm x 5.5mm jack is
center positive.