Switch setup: [ ALL ]

	C1.1 <-> R1.2 <-> R2.1
	C1.2 <-> C4.2 <-> R3.1 <-> volume module.11
	C2.1 <-> C4.1 <-> R1.1 <-> R4.2
	C2.2 <-> C3.1 <-> R3.2
	C3.2 <-> R2.2 <-> volume module.12
	volume module.4 <-> volume module.5

