I do not see 'able to read floorplans' commonly listed as a prerequisite skill to be an install or service tech, but maybe it should be.
The diagram drawn on the inside of this alarm panel pretty much states it:
*** **** ** *** ******: '** YOU ****** ****** **** ******* *** CLOSE **** ***** *** ** ****' ...harsh *** ***** **** ******. *** rest ** *** ********* ******* ***** good ** **; ***** *** ** scale, ***** **** *** **** ** clearly *******, ***** **** *** ******, and '*****' ** **** ******* **'*. (Someone ***** ****** *******.)
* **** ***** ****** ** ******, especially ****** *****, *** ****** ********* floorplans ***** **** *** **** ******** with ****. ** ***** ********* ***** information, *** ****/**** ****** **** ** be ****** *** ** **** **********. (IPVM *** **** ***** ****:*** ** **** ********** *** ******** Projects,********* *** ******** ************ *****,******* "**-*****" ******** ********, *** ** *********** ****** ********** **** ****** / Guide)
** *** ******** *** ***** * prerequisite ** ** * ****?
********** * ************, *'* *** ***** to ****** ** ** ***** *********, but ***** ********* ** *** ** translate ***** ** ***** **** *** building ** * *** ********* ** being * ****. ** ** ********* something **** ***** **** ********.
* *** **** * *** **** label ******* ***** ** ** ***** they **** ******** (****) ** ******** on *** ********. *** **** *** a **** ** ********, *** * lack ** *****.