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Introduction to EVM

Introduction to EVM. It is a reliable machine for conducting Elections. Has mainly 2 units: Ballot and Control Units. Operates on a Special Battery Tamper-proof Information recorded is retained in memory even when the battery is removed.

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Introduction to EVM

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  1. Introduction to EVM • It is a reliable machine for conducting Elections. • Has mainly 2 units: Ballot and Control Units. • Operates on a Special Battery • Tamper-proof • Information recorded is retained in memory even when the battery is removed. • Manufactured by Electronics Corporation of India & Bharat Electronics Ltd. and approved by Election Commission, India. • Easily portable

  2. Units • Each Unit has been provided a casing. • Once opened 3 things will be found: Control unit, Ballot Unit and the Interconnecting Cable. Control Unit Ballot Unit Cable

  3. Battery • They are Special batteries supplied separately • These batteries have a Seal which should be removed before Using • They have an active lifetime of 24 hours.

  4. Details of Interconnecting Cable • It is a flat protected cable and who’s one end is connected to the Ballot Unit permanently while the other end is attached VIA a connector to the Control unit. • Make sure that the cable is properly secured to the Control unit. Cable TOP 15 PIN CONNECTOR SPRING CLIPS

  5. 2.Control Unit • Controls the polling process. • Operated only by P.O. • Consists of: Display Section Busy lamp ON lamp Candidate Set Section 4 sections in all Result Section Ballot Section

  6. Details of Control Unit • Display section has: 2 lamps: On and Busy ; also 2 display panels: one of 2 digit and other of 4 digit displays. • Candidate Set Section: has a cover opening l-r: we see a left compartment which accommodates the Battery and the right one a Red Cad Set button. This section is closed by thread Seal. • Result Section: also has same cover as above. On opening we find the left side has aBlack Close button while right side has inner compartment with its own door. One button her is result 1 button. used for one type of election only: like only single Poll. Result 2 used for both types conducted at the same time, Clear button. Provision kept for a seal in the cover of this inner compt. and thread seal too. • Ballot Section: has 2 buttons , a gray Total button and a large Ballot button. • Bottom of C.Unitalso open for plugging the cable from b.unit and a power switch to switch EVM On/Off.

  7. Lamps details…. • On lamp: in display section will glow GREEN when Control Unit Power switch is put ON, indicating EVM is ready for use. • Busy lamp: in display section glows RED when Ballot button is pressed by P.O. to enable voter to cast vote. Goes Off when over.

  8. ERROR Indicates the Control Unit is not fit for use INVALIDIndicates a button on the Control Unit has been pressed out of sequence. CU ERROR Indicates the Control Unit is to be changed. BU – 1 ERROR Indicates the Ballot Unit-1 is to be changed CLOCK ERROR Indicates the malfunction of Real Time Clock (RTC)

  9. Display Panel details 2 DIGIT DISPLAY • LE: link error: ie. Interconnecting cable not properly connected. • PE: Pressed error, where any of the candidates buttons in Ballot unit are jammed or kept pressed. • Er: Memory Error: Control unit not fit to use.

  10. Display Panel details 4 DIGIT DISPLAY • no: indicates a button pressed on Control unit is pressed out of sequence. • End: End of display sequence after pressing Close , Result or clear button. • Full : indicates max no.of votes for which machine is designed. 9999 is the max.

  11. Display on both panels • nP 1 : machine set for Single poll only. • Cd 6 : machine set for 6 candidates. • to 1234: total no. of votes casted = 1234 • 06 234: candidate 6 has 234 votes in his favor.

  12. Beeps • A beep of not less than 2 seconds after a voter casted his vote. • A beep of 1 second, when displaying information on display units. • Short interrupted beeps to show malfunctioning , disconnection, errors….

  13. Ballot: enables voter to record his vote: so once pressed: the BUSY lamp goes Red, Ready lamp of C.Unit goes Green and voter can now caste his vote. Then Pressed again to allow next voter to record his vote…. • Total: shows no. of candidates and total no. of votes recorded so far. Pressed at anytime: to see the same. But not when Busy lamp is ON. • Close: Once pressed: no further voting can take place. Only pressed at the end of the Poll. When Pressed the no. of polls, no. of candidates, total votes polled and the word end will be displayed

  14. Display Panel details 2 DIGIT DISPLAY • LE: link error: ie. Interconnecting cable not properly connected. • PE: Pressed error, where any of the candidates buttons in Ballot unit are jammed or kept pressed. • Er: Memory Error: Control unit not fit to use.

  15. Display Panel details 4 DIGIT DISPLAY • no: indicates a button pressed on Control unit is pressed out of sequence. • End: End of display sequence after pressing Close , Result or clear button. • Full : indicates max no.of votes for which machine is designed. 9999 is the max.

  16. Display on both panels • nP 1 : machine set for Single poll only. • Cd 6 : machine set for 6 candidates. • to 1234: total no. of votes casted = 1234 • 06 234: candidate 6 has 234 votes in his favor.

  17. Beeps • A beep of not less than 2 seconds after a voter casted his vote. • A beep of 1 second, when displaying information on display units. • Short interrupted beeps to show malfunctioning , disconnection, errors….

  18. . • Ballot: enables voter to record his vote: so once pressed: the BUSY lamp goes Red, Ready lamp of C.Unit goes Green and voter can now caste his vote. Then Pressed again to allow next voter to record his vote…. • Total: shows no. of candidates and total no. of votes recorded so far. Pressed at anytime: to see the same. But not when Busy lamp is ON. • Close: Once pressed: no further voting can take place. Only pressed at the end of the Poll. When Pressed the no. of polls, no. of candidates, total votes polled and the word end will be displayed. • .

  19. +NOTA

  20. Main Source:-www.eci.nic.in. & Miss.KenyirOlga Nongrum, NIC for Election Dept.Jowai Although some modifications has been done keeping in view the aspects of Training.This PPT must only be used for Non-Commercial Purpose.

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