Why are the eSlate voting devices daisy-chained together?
The daisy-chain configuration allows each Cast Vote Record (CVR) to be instantly stored in multiple physically separate locations: in the eSlate’s internal memory, in the Judge’s Booth Controller’s (JBC’s) internal memory, on the Mobile Ballot Box (MMB) flash memory card installed in the JBC, and on the voter verifiable paper audit trail if that option is included. Creating this duplication of the CVR provides maximum security for voted ballots. This configuration also allows us to use the paper Access Code to activate the voting device, rather than using a smart card or other means that might introduce a security risk. An additional advantage of the daisy-chain is that a poll worker does not need to activate each individual voting device, at the device itself, for each voter.
