"Three to five." An assembly having 3pin Male and 5pin Female XLR
connectors, used for data/DMX
Pins are wired one-to-one, pins 4&5 are unwired.
One commercially available product:
Data Products Cables & Adaptors: DMX 3 Pin Male to 5 Pin Female Adapter | Lex Products
See also this thread: http://www.controlbooth.com/forums/l...-question.html