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Nt1210 Lab Report

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1.0 Introduction: Telephone signals are controlled through the process of digital switches. Every wire a telephone has two connections, which is known as input and outputs signals with a binary combination. In this lab, the overall purpose of the circuit was to build a telephone switch that would function which connects to one subscriber to another. What the circuit does is that it gives an input signal using four subscribers which is connected with an output signal using 8 subscribers. As the input signal known as MUX and output signal known as DeMUX, the wiring of the signals are displayed of page 11 known as the Tekron Logic Lab sheet. After completing the circuit, to determine if each input signal is connected to an output signal, the lamp input, S1 and S0, with the additional of pulse output of 1 and 3, the switch was turn on from the back of Tektron Logic device and lamp switch. Then the button were …show more content…

To determine a 4-input MUX as ask in perlab question 1.13, we used two of 2-input MUXs is used to build a 4 input MUX as shown in gates in figure 3. The 4-input MUX circuit in the perlab uses the design of three dual 2-input AND-NOR gates and five NOT gates. The figure 3 shows how a 4-input MUX could be constructed through the use of three two-input MUX’s. For a four-input MUX, a combination of two binary values such as 00, 01, 10, and 11 were the addresses. A schematic of the dialer is given. The dialer was used to send signals through the MUX and DeMUX. On the Tektron logic board, 52, 53 and 54 contain very useful gate considering I used them instead of 2 input gates, with N10, 11 and 12 were also used for not inverter. The inerter required to change the signal back to its original form the OR gate, and by using those gates it can avoided saving multiple wires to required to connect each gate together. As shown below in figure 3 using 51, 52, 53 and inverters, the MUX circuit was

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