Campbell Scientific RF300-Series DRL VHF/UHF Radio Transceivers - Manual (Page 60)

APPENDIX J. CABLE PIN OUTS AND LED FUNCTION FOR RF95A AND RF300
J-2
TABLE J-4. Radio 9 pin Serial
Communications Connector
9 Pin
Radio
Description
1 Sleep/Wake Mode
2 RS-232 RX
3 RS-232 TX
4
5
Ground
6 Channel Select
7
8
Channel Select 1
9 Channel Select 2
LED’s
Yellow = Carrier Detect, indicates a carrier
frequency has been detected.
Green = Power applied to Loader, see below.
Red = Transmit, indicates the radio is
transmitting.
Radios are factory configured with LED’s
enabled. When the radio is connected to
power, the Green power LED will stay on
unless the radio is connected to an RF95A and
a datalogger. When using the RF95A and
datalogger, the green LED will start flashing
after 45 seconds. A flashing green LED
indicates the RF300 is in sleep mode.
LED’s can be Enable/Disabled via the JDT
Software
TABLE J-5. JDT Software
Items that can be set be the JDT Software and
the settings CSI will set the radios up for:
Radio Model: 3412 = UHF or 3422 = VHF
Range: See Chart
RX Audio Mode: FSK
TX Audio Model: Audio
600 Ohm input: On
Enable LEDs: On
PTT Polarity: Active Low
Carrier Detect Polarity: Active High
Sleep Mode Polarity:
Active Low
RX Mute Control: Mute As Squelch
TX Only: No