Jackson Labs LC_XO - 4 SCPI-Control Quick Start Instructions; 4.2 General SCPI Commands; 4.3 GPS Subsystem; 4.5 SYNChronization Subsystem

© 2012 Jackson Labs Technologies, Inc. 29
LC_XO GPSDO User Manual
4SCPI-Control Quick
Start Instructions
4.1 Introduction
The SCPI (Standard Commands for Programmable Instrumentation) subsystem is accessed via the
RS-232 interface and a terminal program. By default the terminal settings are 115200, 8N1.
There are a number of commands that can be used as listed below. Most of these are identical or
similar to Symmetricom 58503A commands.To get a listing of the available commands, send the
HELP? query. This will return a list of all the available commands for the LC_XO GPSDO.
Additional information regarding the SCPI protocol syntax can be found on the following web site:
http://www.scpiconsortium.org
Please refer to the document SCPI-99.pdf for details regarding individual SCPI command
definitions. A basic familiarity with the SCPI protocol is recommended when reading this chapter.
4.2 General SCPI Commands
4.2.1 Quick Start Commands
For a quick start, try the following SCPI serial port commands:
help?
syst:stat?
gps?
sync?
meas?
4.2.2 *IDN?
This query outputs an identifying string. The response will show the following information:
<company name>, <model number>, <serial number>, <firmware revision>