Manuals for the DSU II
User Guides
Impact LCD Speakerphone Attendant Manual
Impact LCD Speakerphone Station Users Guide
Impact Non-LCD Speakerphone Station Users Guide
Impact Single Line Proprietary Telephone Station Users Guide
Technical Publications
DSU II Introduction 11/96 (707 KB)
DSU II Installation Part 1 11/96 (707 KB)
DSU II Installation Part2 11/96 (654 KB)
DSU II Programming Part 1 11/96 (311 KB)
DSU II Programming Part 2 11/96 (1.2 MB)
DSU II Programming Records 09/97 (432 KB)
DSU II System Features 11/96 (341 KB)
Technical Advisory Bulletins for the DSU II
DSU II Software Release 6A 7/00 (52 KB)
DSU II Software Release 5C 7/00 (39 KB)
DSU II Software Release 5B 11/98 (27 KB)
DSU II Software Release 5A 05/98 (28 KB)
DSU II Software Release 4A 08/97 (157 KB)
DSU II Software Release 3A 03/97 (119 KB)