Projeto e Implementao de um Sistema de Comutao Telefnica by Carlos Alberto Varga-image

Projeto e Implementao de um Sistema de Comutao Telefnica by Carlos Alberto Varga

$ 64.91

Language: Does not apply ISBN-13: 9786208287399 Author: Carlos Alberto Vargas Quiroz ISBN: 9786208287399 Publication Name: NA Type: NA Format: Paperback gtin13: 9786208287399 Book Title: Projeto e Implementao de um Sistema de Comutao Telefnica

Description

Projeto e Implementao de um Sistema de Comutao Telefnica by Carlos Alberto Vargas Quiroz Estimated delivery 3-12 business days Format Paperback Condition Brand New Description Foi desenvolvido um sistema de controle baseado em microcontroladores para um equipamento de comunicação e comutação de dez assinantes, basicamente serão dois telefones conectados, podendo chegar a dez em todo o equipamento, também a união de outros nove equipamentos semelhantes permite uma comunicação total de cem assinantes, já que são dois dígitos para todo um sistema de comutação. Para a realização do projeto, começámos por investigar e analisar todos os circuitos presentes num sistema de comutação geral ou central telefónica, definindo assim os circuitos básicos presentes no novo equipamento de comutação. Posteriormente estes circuitos foram analisados e viu-se a possibilidade de relacioná-los com os microcontroladores, uma vez feito isso, é feita a interface entre eles para que os circuitos sejam comandados pelos microcontroladores. Antes da implementação são realizados uma série de testes aos circuitos do sistema para ver como reagem em casos extremos, finalmente são definidos todos os circuitos presentes no novo sistema de comutação telefónica. Details ISBN 6208287391 ISBN-13 9786208287399 Title Projeto e Implementao de um Sistema de Comutao Telefnica Author Carlos Alberto Vargas Quiroz Format Paperback Year 2024 Pages 100 Publisher Edicoes Nosso Conhecimento GE_Item_ID:168884267; About Us Grand Eagle Retail is the ideal place for all your shopping needs! With fast shipping, low prices, friendly service and over 1,000,000 in stock items - you're bound to find what you want, at a price you'll love! Shipping & Delivery Times Shipping is FREE to any address in USA. Please view eBay estimated delivery times at the top of the listing. Deliveries are made by either USPS or Courier. We are unable to deliver faster than stated. International deliveries will take 1-6 weeks. NOTE: We are unable to offer combined shipping for multiple items purchased. This is because our items are shipped from different locations. Returns If you wish to return an item, please consult our Returns Policy as below: Please contact Customer Services and request "Return Authorisation" before you send your item back to us. Unauthorised returns will not be accepted. Returns must be postmarked within 4 business days of authorisation and must be in resellable condition. Returns are shipped at the customer's risk. We cannot take responsibility for items which are lost or damaged in transit. For purchases where a shipping charge was paid, there will be no refund of the original shipping charge. Additional Questions If you have any questions please feel free to Contact Us. Categories Baby Books Electronics Fashion Games Health & Beauty Home, Garden & Pets Movies Music Sports & Outdoors Toys

  1. Seller sent me the wrong book, but the book they sent sounded interesting enough for me to keep it. I still contacted the seller and communication was fast and professional. They apologized for sending me the wrong book and said I could return it for a refund. I told them that I liked the book they sent me and wanted to keep it. They were happy. Told them thank you and happy new year. People make mistakes, but the fact that this seller was quick and professional and apologized made a difference.

    Prototypefe1

  2. The basket is perfectly what I ordered and as listed. It came in the factory packaging and was perfect upon delivery. Thank you postal service lol. The delivery took way longer than listed though, it was listed to come in a week from purchase, but took a whole month. I had some concerns at first, but communication with the company was top notch and they were very professional and answered most of my questions satisfyingly. Just prepare for a longer wait than listed, but I got what I bought lol.

    coalmine489a

  3. The two new out-of-print books I ordered were exactly as described and shipped promptly. I did ask the seller's support person (an AI chatbot, I think) to be sure to package the items carefully, and "he" said that he'd make that request of the shipping department. I knew this was hooey, and as I expected, the books were shipped in nothing but a padded paper mailer, no other protection. I got lucky, no damage, but don't bother making special requests of this seller.

    Olivier Marguillard

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