a$)$ Draw a DETAILED diagram of your system, showing all components and interconnections. Please do not draw diagrams by hand. Snag your drawings in JPG format, then paste them into this document. Please draw star configurations as stars, and rings as rings. Include your name or initials somewhere to identify the drawing as your own. $(10$ marks$)$

b$)$ Provide a description of your system, pointing out any assumptions you have made. About $1$ page will be sufficient. Please make it a structured description with the following headings $($properly numbered$).(5$ marks$)$

i$.$ Ethernet infrastructure

ii$.$ Wireless infrastructure

iii. Redundancy

iv$.$ Security

v$.$ Connection to the corporate network

c$)$ Give full details of the following devices. Include brand name, model number and picture $($snag$)$ of the particular device you are using. The information must be sufficient to find the datasheets on the Internet. $(6$ marks$)$

i$.$ Central switch

ii$.$ Ring switches

iii. Wireless modems

d$)$ Give full details of the RTUs. Include brand name, model number, I$/$O configuration and snag of the particular device you are using. $(4$ marks$)$