Programming

Reviewing SCPI Syntax Rules

Combine commands from different subsystems

You can send commands and program queries from different sub- systems on the same line. Simply precede the new subsystem by a semicolon followed by a colon. In the following example, the colon and semicolon pair before DISP allows you to send a command from another subsystem.

OUTPUT 720;”:CALC2:PEXC 12;:DISP:WIND:GRAP:STAT OFF”

Sending common commands

If a subsystem has been selected and a common command is received by the instrument, the instrument remains in the selected subsystem. For example, if the program message

”DISPLAY:MARK:MAX:LEFT;*CLS;DISP:MARK:MAX:RIGH”

is received by the instrument, the Display subsystem remains selected.

If some other type of command is received within a program message, you must reenter the original subsystem after the command.

Adding parameters to a command

Many commands have parameters that specify an option. Use a space character to separate the parameter from the command as shown in the following line:

OUTPUT 720;”:INIT:CONT ON”

Separate multiple parameters with a comma (,). Spaces can be added around the commas to improve readability.

OUTPUT 720;”:MEAS:SCAL:POW:FREQ? 1300, MAX”

White space

White space is defined to be one or more characters from the ASCII set of 0 through 32 decimal, excluding 10 (NL). White space is usually optional, and can be used to increase the readability of a program.

Numbers

All numbers are expected to be strings of ASCII characters. Thus, when sending the number 9, you would send a byte representing the ASCII code for the character “9” (which is 57). A three- digit number like 102 would take up three bytes (ASCII codes 49, 48, and 50). This

3-25

Page 102 Page 104
Page 103
Image 103
Agilent Technologies Agilent 86120C manual Combine commands from different subsystems, Sending common commands, White space
Page 102 Page 104

Agilent 86120C specifications

Agilent Technologies is renowned for its innovative solutions in the field of electronic measurement and test instrumentation. Among its extensive portfolio, the Agilent 86120C stands out as a high-performance optical sampling oscilloscope designed for advanced optical communication system testing and development.

One of the key features of the Agilent 86120C is its ability to perform high-speed digital modulation analysis. With a bandwidth of up to 20 GHz, it supports a wide range of optical signals, making it ideal for testing and characterizing various optical components and systems. The device is capable of analyzing multiple modulation formats, including pulse amplitude modulation (PAM-4), making it a critical tool for engineers working on next-generation data transport technologies.

Another outstanding characteristic of the Agilent 86120C is its sophisticated optical performance monitoring capabilities. It employs advanced algorithms and techniques to provide real-time assessment of signal integrity. The oscilloscope can measure parameters such as eye diagrams, jitter, and signal-to-noise ratios, which are crucial for ensuring the reliability and performance of optical communication links.

Incorporating cutting-edge technologies, the Agilent 86120C features a high-sensitivity photodetector optimized for low-light detection and high-speed applications. This allows users to accurately capture and analyze signals, even when working with low-power transmission systems. The oscilloscope also supports multiple input channels, enabling simultaneous testing of multiple wavelengths or different signal paths.

User-friendly software is another highlight of the Agilent 86120C. The intuitive interface streamlines the measurement process and provides comprehensive data analysis tools. Users can quickly generate reports, conduct statistical analysis, and visualize data in various formats to enhance their understanding of signal behavior.

Additionally, the Agilent 86120C is equipped with connectivity options for seamless integration into larger test setups. It can easily interface with other Agilent test instruments, PCs, and networked environments, allowing engineers to create a comprehensive testing environment tailored to their specific needs.

In conclusion, the Agilent 86120C optical sampling oscilloscope combines high performance, advanced features, and cutting-edge technologies to meet the demanding requirements of optical communication testing. Its versatility makes it an essential tool for engineers working in the rapidly evolving field of data communications.
Top Page Image Contents