SQ box 13:49 Sep 18, 2010
You might need to ask the customer on this one; it seems to me highly unlikely that they would refer to some kind of 'square box' as an identifier in this obviously fairly precise technical document — not least, because there might well be more than one 'square box' in a services cupboard!
Also, the fact that it is in u/c suggests to me that it might be an acronym or abbreviation — but so far, I have only been able to find SQ in connection with car audio, or as a specific manufacturer of technical equipment (a possibility that perhaps shouldn't be ruled out!) |