AValon RF DX-02 Series - Manual (Page 11)

AVALON RF, INC. Page 8 of 20
DX402/DX502/DX602 User’s Guide & Operating Manual
2.7.3 Audio Output (pins 4 and 3) )..
The DX602 audio outputs 1V(rms) into a 600 load impedance.
2.7.4 Audio talk back (pins 5, 6 and 9).
The DX602 audio talk back channel has a 100Hz-3.4KHz frequency
response and built-in automatic gain control. It is compatible with an
Electret microphone with separate microphone bias.
The DX602 audio talk back is compatible with the TX623/TX630
2.7.5 Wireless Data Link (WDL) (pins 12 and 13). ).
The WDL is a RS485 half duplex communication link capable of baud
rates of from 1200 baud to 19.2Kbaud.
The DX602 WDL is compatible with a TX623/TX630
2.7.6 Alarm Output (pin 11 and pin 9).
The Alarm output is a dry relay output capable of driving a resistive
load limited to 24V and 1A. It is normally open.
The DX602 alarm is compatible with a TX623/TX630.
2.7.7 Telemetry Output (pins 10, 14 and 15). .
The DX602 has three telemetry outputs. Each output has a voltage
swing of 0V to 1V and an output impedance of 1Kohm with a 0.01uF
capacitor to filter high frequency noise.
The DX602 telemetry is compatible with a TX623/TX630
2.7.8 RS232 Input (pin 7 to pin 9).
The DX602 RS232 input is used to tune the receiver from a remote
computer. It is an asynchronous link operating at 9600 baud, 8 bits,
no parity, ASCII encoded per protocol described in Appendix A.