CO - Central Office (a box for all intents and purposes)
CAB - Cabinet (not joking)
BEP - Building entry point (it's a box)
FB - Floor box
If you're wondering what the rest are ...
OLT - Optical Line Terminal (it's the source of data)
ONT - Optical Network Terminal (it's the end user)
OTO - Optical Terminal Outlet (it's the fucking port or whatever you plug your thing into)
Acronyms on the caption
G652D/G657A1 are types of optical fibers
FTTH - Fiber To The Home
Now you might be wondering.
"How many other acronyms does this paper have?". 23 on the first 2 pages.
"Is this paper readable?". No. Why do you think I'm making this post instead of reading that paper?
"What is the funniest acronym on this paper?". I think CAB and FB are good contenders. But more funny is that this paper does not make an acronym of "Bob station" or "Alice station". Those must be written out in their full glory each time.
The FTTH industry is a grab bag of good old boys that grew as a tumor off the old telecoms.
When I started most of the design work was still just kinda vibed out. I've written a ton of software for our company that automates the design process, so you know, it's like actually a functional graph/redundant network. Before they just kinda plugged stuff in and manually went through thousands of fiber traces in CAD to fill out a spreadsheet that was used for splicing...