Lt Terraneo 608 & 672 Manuals

[FencingBloke]

Would anyone happen to have/know where I can get manuals for LT Terraneo 608 & 672 audio system modules? I've recently been handed a job to maintain four blocks of flats that use this gear, and there's no wiring diagrams, three different sets of partially used wiring (3 twenty way cables for a dozen wires), all the commons on the twisted pairs have been used, and none of the colours.........

For pity sake someone rescue me!!

And breathe............