These are zipped PDF files

Impact Telephone User Guides
DXP and FX

Impact 8024S, 8012S, 8324S, 8312S and 8324F Reference Manual GCA70-250(.05) (638 KB)

Impact 8024S, 8012S, 8324S, 8312S and 8324F Station Users Guide GCA70-258(.08)(374 KB)

Impact 8124S, 8112S, 8112N, 8212S, 8212N Reference Manual GCA70-249(.05) (438 KB)

Impact 8124S, 8112S, 8112N, 8212S, 8212N Station Users Guide GCA70-313(.04) (366 KB)

Impact 8101N and 8201N Station Users Guide GCA70-251(.06) (211 KB)

DSU and DSU II

Impact 8024S, 8012S, 8324S, 8312S and 8324F Reference Manual GCA70-245(.03) (516 KB)

Impact 8024S, 8012S, 8324S, 8312S and 8324F Station Users Guide GCA70-281(.04) (345 KB)

Impact 8124S, 8112S, 8112N, 8212S, 8212N Reference Manual GCA70-244(.03) (398 KB)

Impact 8124S, 8112S, 8112N, 8212S, 8212N Station Users Guide GCA70-248(.07) (304 KB)

Impact 8101N and 8201N Station Users Guide GCA70-246(.03) (190 KB)