TeeJet RX 400p - Manual (Page 139)

RX 400p
9-1 98-05044
R1
9 Appendix B - Interface
This appendix provides information on interfacing the various aspects of your RX
400p receiver.
The main purpose of the RX 400p receiver is to provide differentially corrected
position and position-related information in the standard NMEA format. In addition
to the RX 400p operating as a positioning sensor, you may also have a use for the
correction data received by the internal WAAS, OmniSTAR, or beacon.
The following sections detail how to interface your RX 400p depending on your
application.
9.1 GPS NMEA Output
The data output from the RX 400p MAIN port is differentially corrected GPS NMEA
data.
To establish communications between the RX 400p and your data logging or
monitoring device in these modes of operation, you must:
Connect Pin-2-transmit (TX) of the MAIN port to the receive pin (RX) of the data
logging or monitoring device.
Connect Pin-3-receive (RX) of the MAIN port to transmit pin (TX) of the monitor
device if bi-directional communication is required
Connect Pin-5-Common Ground of the MAIN port to the signal return or common
ground of the external device.
This configuration is also valid for the output of RTCM data and the Bin95 and
Bin96 binary messages through the MAIN port.
Figure B-1 illustrates the required interface between the RX 400p and an external
device: