Programming the Attenuator

Some Notes about Programming and Syntax Diagram Conventions

If more than 29 errors are put into the queue, the message ’-350 <Queue Overflow>’ is placed as the last message in the queue.

7.5Some Notes about Programming and Syntax Diagram Conventions

A program message is a message containing commands or queries that you send to the attenuator. The following are a few points about program messages:

•You can use either upper-case or lower-case characters.

•You can send several commands in a single message. Each command must be separated from the next one by a semicolon

(;).

•You end a program message with a line feed (LF) character, or any character sent with End-Or-Identify (EOI).

•You can use any valid number/unit combination.

Example 1500nm, 1.5∝ m and 1.5e-6m are all equivalent.

If you do not specify a unit, then the default unit is assumed. The default unit for the commands are given with command description in the next chapter.

Short Form and Long Form

The instrument accepts messages in short or long forms. For example, the message :INPUT:WAVELENGTH 1313 is in long form, the short form of this message is :INP:WAV 1313.

In this manual the messages are written in a combination of upper and lower case. Upper case characters are used for the short form of the message. For example, the above command would be written :INPut:WAVelength.

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Agilent Technologies 8156A manual Some Notes about Programming and Syntax Diagram Conventions, Short Form and Long Form
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8156A specifications

Agilent Technologies 8156A is a high-performance optical source offering advanced capabilities for testing and characterizing optical systems. Specifically designed for applications in telecommunications and data communications, the 8156A stands out due to its precision, versatility, and reliability, making it an essential tool for engineers and researchers in the telecommunications industry.

One of the main features of the 8156A is its ability to generate a stable, accurate, and tunable optical signal. This optical source operates across a wide wavelength range, typically from 1260 nm to 1675 nm, covering key regions used in fiber optics. The tunable laser module is particularly beneficial for applications requiring the testing of fiber optic components, systems, and networks, enabling users to specify any wavelength within this range.

The device employs advanced technologies, including distributed feedback (DFB) laser technology, offering low noise and high output power while ensuring minimal phase and frequency jitter. This results in precise measurements that are crucial for evaluating the performance of optical devices. The 8156A also features a built-in optical power meter, allowing for seamless integration and real-time monitoring of optical power levels during testing.

Another significant characteristic of the 8156A is its user-friendly interface, which includes easy-to-read displays and intuitive controls. This design simplifies operation, allowing users to set up tests quickly and efficiently. Additionally, it provides various output options, including single-mode and multi-mode fiber interface compatibility, expanding its usability across different applications.

The 8156A is equipped to handle numerous protocols and systems, including passive optical networks (PON), optical transport networks (OTN), and traditional wavelength-division multiplexing (WDM) technologies. Its agility in adapting to various protocols enhances its role in research and development settings.

Moreover, the device offers a range of automation features, enabling users to script complex measurement sequences, making it an adaptable solution for both laboratory and field environments. Combined with its robust build quality, the Agilent Technologies 8156A optical source not only ensures reliable operation but also provides a long service life, making it a valuable investment for any optical testing application.
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