RR-CirKits, Inc IO-Test - 8 Line I/O Port Test Board - Multi Scale

(I/O Test Board) This board contains 8 push button switches and 8 LED pairs. It is designed to quickly test the I/O ports on any of our boards such as the Tower LCC, Mark II, various of the WorkMan series SSB boards, and our LCC I/O nodes. It may be configured to test Common Anode or Common Cathode connection (by jumper settings).