patch board
or patch paneln1. (Electronics) a device with a large number of sockets into which electrical plugs can be inserted to form many different temporary circuits: used in telephone exchanges, computer systems, etc. Also called: plugboard
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014