multi cable questions

so im not sure what the purpose of these lines are can someone explain to me what thy are for..

i am doing nema 2000 not 0183
also what is an external buzzer?
event switch?
alarm contact?

now can net do i need to connect these for nema 2000?

Please refer to page 2-2 of the installation manual for the full information on this cable.
http://www.furunousa.com/ProductDocumen ... Manual.pdf