Jackson Labs LC_XO - Serial Echo

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LC_XO GPSDO User Manual

Figure 3.1 Z38XX parameter window

Set the communications parameters as follows:

•

Comm port: Windows will assign a comm port. Enter that number in the Com box.

•

Baudrate: 115,200

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Data bits: 8 bits

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Stop bits: 1

•

Parity: none

3.2.1.2 Serial Echo

For serial communication with Z38XX to work correctly, Serial Echo must be turned off (see the

explanation in the Z38XX manual). To turn off serial echo, click on the Manual Command Entry tab.

The drop-down menu shown in Figure 3.2 will appear. Scroll all the way down and click on

SYST:COMM:SER:ECHO OFF. Wait until the yellow indicator is lit and then press “Send”. This

will send a command to the LC_XO and turn off serial echo.

Note: If you want to run GSPcon utility subsequently, be sure and turn back on Serial

Echo as that program requires it. To do so, click on the Manual Command Entry tab

and scroll down to the menu item SYST:COMM:SER:ECHO ON. Wait until the yellow

indicator is lit and then press ”Send”.