JDS Uniphase HA9 Series User Manual

Programming Guide – 70
*WAI Command
Syntax *WAI
Function Prevents the attenuator from executing any further commands or queries until all
pending operations have been completed.
Example
:INP:ATT 10;WAI;INP:OFF? prevents the attenuator from reading the offset until
it has completed setting the attenuation to 10 dB.
DISPlay Commands
:DISPlay:BRIGhtness
Syntax
:DISPlay:BRIGhtness<space><numeric value> where 0 ≤ <numeric value> ≤ 1
Function Sets the brightness of the LCD display. Because the display brightness can only
be set to 1, the numeric value is rounded to 1. This command is implemented
only to maintain compatibility with the HP 8156A attenuator.
Example
:DISP:BRIG 1.0
:DISPlay:BRIGhtness?
Syntax :DISPlay:BRIGhtness?
Function Returns the brightness setting for the display.
Example
:DISP:BRIG 0.5;BRIG? returns 1 in all cases.
:DISPlay:ENABle
Syntax :DISPlay:ENABle <boolean>
Function This command enables or disables a display on the attenuator. However,
because the attenuator display cannot be turned off, the command has no
effect. It is implemented only to maintain compatibility with the HP 8156A
attenuator.
Example
:DISP:ENAB 1
:DISPlay:ENABle?
Syntax :DISPlay:ENABle?
Function Returns the current state of the display.
Example
:DISP:ENAB 0;ENAB? returns 1 in all cases.
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JDS Uniphase HA9 Series Specifications

General

Brand	JDS Uniphase
Model	HA9 Series
Category	Control Unit
Language	English

Summary

Safety Information, Instructions, and Symbols

Safety Instructions

Essential safety guidelines for operation, service, and repair.

Safety Symbols

Explanation of symbols and warning messages used in the manual.

Compliance

Details on FCC and CE compliance standards for the device.

General Information and Specifications

Product Overview

General description of the HA9 Series Extended Range Programmable Optical Attenuator.

Key Features

Highlights of the attenuator's capabilities, including range and resolution.

Specifications

Detailed optical and electrical specifications for the HA9 attenuator.

Getting Started

Initial Setup and Inspection

Steps for initial setup, inspection, and connecting the unit.

Operating Environment

Recommended conditions for temperature, humidity, and ventilation.

Cleaning Connectors

Procedures for cleaning optical connectors before use.

Interface Connections

How to connect GPIB and RS232 interfaces for remote operation.

Operating and Maintenance Instructions

Front Panel Overview

Description of front panel controls, keys, and LEDs.

Rear Panel and Connections

Identification of rear panel ports and connections.

Attenuator Operation Modes

How to set and use ATT, PWR modes, and power up the unit.

Calibration and Slope Configuration

Procedures for setting calibration wavelength and user slope.

Maintenance and Verification

Steps for verifying calibration, insertion loss, and maintaining the unit.

Programming Guide

Remote Operation Setup

Configuring GPIB and RS232 interfaces for remote control.

Command Syntax and Rules

Guidelines for command structure, parameters, and message formats.

HA9/HPM Command Reference

Detailed listing of operation and query commands for HA9/HPM.

Status Reporting and Control

Managing status registers, service requests, and error handling.

Status Structures Overview

Explanation of implemented status data structures and registers.

Error Handling

Information on the error queue and description of error numbers.

SCPI Command Tree

Hierarchical structure of SCPI commands for the device.

Common Commands

Standard IEEE 488.2 commands applicable to the attenuator.