DSU

Data Service/Switching Unit + Digital Service Unit

DSU

Data service unit. Device used in digital transmission that adapts the physical interface on a DTE device to a transmission facility such as T1 or E1. The DSU is also responsible for functions such as signal timing. Often referred to together with CSU, as CSU/DSU. See also CSU.
Found on http://www.wildpackets.com/resources/compendium/glossary_of_networking_term

DSU

Development Support Unit
Found on http://www.met.police.uk/foi/glossary.htm

DSU

Digital service unit used to connect to digital leased lines on the LAN side.
Found on http://www.comptechdoc.org/independent/networking/cert/netterms.html

DSU

Discipline Support Unit
Found on http://www.met.police.uk/foi/glossary.htm

DSU

Distress Signal Unit another term for a type of PASS device.
Found on http://en.wikipedia.org/wiki/Glossary_of_firefighting_equipment

DSU

Distress Signal Unit another term for a type of PASS device.
Found on http://www.translationdirectory.com/glossaries/glossary102.htm

DSU

Dog Support Unit
Found on http://www.met.police.uk/foi/glossary.htm

dsu

don't screw up
Found on http://www.noslang.com/dictionary/d/
No exact match found