See also:
What pin we use for Knock2? MembersPage/GintsK
What about knock gnd in v3 harness? How can I make gnd for it? MembersPage/ZoltanAlmasi
Chart of Analog Inputs on page 2:
http://www.vems.hu/download/v3/doc/RescueKit.doc
The standard EC18 wiring (since 2009-09-29):
See also