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- What is common channel signaling? And how does it work?What is a transmission gate? Draw its circuit circuit diagram. How does it operate? What is the need for a transmission gate? What is it disadvantage?VI. FILL-IN QUESTIONS: 1. Before the TRIAC is triggered on, the voltage across its main terminals is equal to the voltage. 2. When the TRIAC is triggered on, the voltage across its main terminal is about V. 3. Once the TRIAC is conducting, the gate_control the current to flow through the TRIAC. 4. The TRIAC can be turned off by reducing the current through it below its The TRIAC can have_or__terminal voltage and be triggered on by_applied on the gate.
- How does "optical amplification" improve the performance of optical fiber communication, and what are the different types of optical amplifiers?What is a multipath channel? Why is a multipath channel frequency selective?Explain Difference between Circuit Switching, and Packet Switching. And also what are the advantages of Circuit Switching and Packet Switching?
- 5. Which of the following statements is true ? 1.There are only Common Cathode displays. 2.There are only Common Anode displays 3.There are Common Cathode and Common Anode displays 6. What is the output when decimal numbers are converted into BCD switch when No. 6 is pressed ? 1. 1001 2. 0110 3. 1000 7. Construct a 4 -16 decoder using two pieces of IC74138.What Is branch datapath?Explain the disadvantages of digital telecommunication.
- Describe how digital signals are transmitted over a telephone line or TV cable.Describe how each of the following circuits works and indicate typical inputs and outputs. Also provide a carefully labeled “black box” diagram for each. 1. a) Decoder 2. b) MultiplexerSimilar to the GTO, IGBT can be designed to block negative voltage .... What does this sentence mean?What is the advantage block negative voltage??