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Drivers Manual

Trimble 7400 RealTime Survey Data - 12

Description

Driver for Trimble 7400 series Real Time Survey Data (RT17).
Driver extracts pseudoranges, ephemerides, ionospheric and UTC data and optionally position information from the receiver. 

Driver Information

Driver  Trimble 7400 RealTime Survey Data Interface Type Serial  Driver Class Type Counted
UTC Driver (question)  No Input / Output Input (two-way)  Executable DrvTrimbleRT.exe
Related Systems
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System Configuration

The Trimble 7400 receivers can be configured using the remote controller program (RemCon).

Receiver Port Config: Set the interface parameters for the receiver.

Click the "CONTROL" key

Click the "ALPHA" key to go down one screen

Click the <SERIAL PORT SETUP> key to configure the serial port I/O settings. 
Clicking the "ALPHA" key changes the values. The next field can be reached by pressing the "ENTER" key.

Configure the receiver raw data output format by the following sequence on the simulated display

Click the "CONTROL" key

Click the "ALPHA" key to go down one screen

Click the <SERIAL PORTS OUTPUT> softkey

Click the <RT!&/BINARY OUTPUT> softkey

Now set the following using the "ALPHA" and "ENTER" key:

PORT: the port to which QINSy is connected, i.e. 1 to 4.

CONCISE: on

MEASUREMENTS: 1 HZ

R-T FLAGS: on

POSITIONS: off or 1 HZ

EPHEMERIS: on

Interfacing Notes

All four IO ports of the receiver can be used. The following table shows where the ports are located .

Port #

Connector

Port 1

PWR I/O 1

Port 2

I/O 2

Port 3

PWR 2&3

Port 4

AUX

The wiring for the receiver has to be bi-directional. Either Trimble supplied cables can be used together with a DB-9 to DB-25 converter, or a special made cable.
Pin numbers of the 5 and 7 pin LEMO plugs are shown below. The view is towards the rear panel of the receiver, which is the same as the soldering end of the plug.

The 7-pin LEMO ports 2 and 4 have to be wired as follows:

LEMO
7-pin

I/O 2 or
AUX

DB-9

COM

DB-25

COM

Pin 1

SG

------

Pin 5

SG

Pin 7

SG

Pin 3

Data in

------

Pin 3

TXD

Pin 2

TXD

Pin 7

Data out

------

Pin 2

RXD

Pin 3

RXD

The 5-pin LEMO port 1 and 3 have to be wired as follows:

LEMO
5-pin

PWR 2&3
PWR-I/O 1

DB-9

COM

DB-25

COM

Pin 3

Data in

------

Pin 3

TXD

Pin 2

TXD

Pin 4

SG

------

Pin 5

SG

Pin 7

SG

Pin 5

Data out

------

Pin 2

RXD

Pin 3

RXD

Database Setup

If the position output is also configured, select item "Systems" under the object and define a new "Position navigation system".
Select the same driver, I/O parameters and antenna node as with the satellite system.