Radio Shack ET-543 owner manual Installation, Selecting a Location, Installing the Phone

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INSTALLATION

SELECTING A LOCATION

Select a location for the telephone that meets these requirements:

•Near an AC outlet

•Near a telephone line jack

•Out of the way of normal activities

•Away from electrical machinery, electrical appliances, and metal walls or filing cabinets

•Away from wireless intercoms, alarms, and room monitors

The base’s location affects the phone’s range. If you have a choice of several locations, try each one to see which provides the best performance.

If the phone line jack is not a modular jack, you must update the wiring your- self, using jacks and adapters avail- able at your local RadioShack store. Or, you can let the phone company up- date the wiring for you.

Notes:

•The phone company will charge you for the installation of the nec- essary jacks.

•The USOC number of the jack to be installed is RJ11C.

INSTALLING THE PHONE

Follow these steps to install the base on a desk, shelf, or table.

1.Plug one end of the supplied mod- ular cord into the phone jack on the back of the base.

2.Plug the modular cord’s other end into a modular phone line jack.

3.Insert the supplied AC adapter’s barrel plug into the DC 12V jack on the back of the base.

4.Plug the adapter into a standard AC outlet.

For the best reception, fully extend the base’s antenna and place it in a verti- cal position.

Caution: You must use a 120V AC/ 12V DC adapter that delivers at least 200 milliamps. Its center tip must be positive, and its plug must correctly fit the phone’s DC 12V jack. The supplied adapter meets these requirements. Using an adapter that does not meet these requirements could damage the phone or the adapter.

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Contents ET-543 Features Fm Page 3 Tuesday, August 17, 1999 1036 AM Read this Before Installation FCC StatementContents Installation Installing the PhoneSelecting a Location Connecting Battery Charging BatteryPreparation Setting the Dialing Mode Operation Using the Handset At the BaseUsing the Handset Away from the Base MAKING/ANSWERING a CallUsing Redial Using FLASH/DELReducing Interference Using Memory DialingStoring a Number in Memory Dialing a Stored Number Entering a Pause A Memory NumberTesting Stored Emergency Numbers Chain DialingTroubleshooting SolutionsProblem The handset’s range decreases Care and Maintenance Replacing Battery FCC Wants YOU to KnowLightning RadioShack Division of Tandy Corporation Fort Worth, Texas

ET-543 specifications

The Radio Shack ET-543 is a noteworthy addition to the realm of portable electronic technology, particularly in the category of handheld calculators and educational tools. Launched during a vibrant era of innovation, the ET-543 encapsulates the spirit of the late 20th century, when personal computing and digital gadgets became increasingly accessible to the general public.

At its core, the ET-543 features a natural display that allows for easy viewing of calculations, making it user-friendly for both novices and seasoned users alike. The device is equipped with a combination of mathematical functions that streamline computations ranging from basic arithmetic to more complex algebraic operations. This wide array of capabilities makes the ET-543 an ideal choice for students and professionals who require a reliable tool for everyday calculations.

One of the standout technologies of the ET-543 is its robust memory function, which allows users to store multiple calculations for later use. This feature is particularly beneficial for users who engage in repetitive tasks or require a quick reference for previously calculated values. Coupled with its programmable functions, the ET-543 presents a versatile platform that can accommodate a range of mathematical needs.

In terms of design, the Radio Shack ET-543 boasts a compact and lightweight form factor, making it highly portable. This characteristic is essential for users who need a dependable calculator on the go, whether in the classroom, workplace, or during travel. The button layout is intuitive, allowing for easy navigation through various functions without the need for extensive training.

Another important aspect of the ET-543 is its educational value. The device serves as a practical teaching aid, helping students grasp fundamental concepts of mathematics and computation. Its durability and ease of use ensure that it stands up to repeated use in educational environments.

In summary, the Radio Shack ET-543 is more than just a calculator; it embodies the fusion of technological innovation and user-centric design. With features tailored to meet a variety of mathematical challenges, coupled with its portability and educational utility, the ET-543 remains a symbol of practical technology that resonates with users across generations.
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