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RX 400p

9-1 98-05044

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:

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Teejet RX 400p Bedienungsanleitung Seite 139