(This scheme is part of the network system in the general contracting scheme of weak points of an office building. The network design of 1152 pieces of information is definitely a classic work, please refer to it.
If you have WYB, you will be troubled to make money. If you don't have WYB, leave an email and I will send it to you.
This document includes the following attachments:
An office building network system scheme (35 pages).doc...)