SPARKOMATIC
model(s)	wire color	pin number
CB-1023	Audio	1
	Ground	2
	N/C	N/C
	Common	2
	PTT	3
	receive	5
model(s)	wire color	pin number
CB-2023	Audio	1
	Ground	2
	N/C	N/C
	Common	2
	PTT	3
	receive	4
model(s)	wire color	pin number
CB-1123	Audio	2
CB-5100	Ground	1
CB-5000	N/C	N/C
CB-1040	Common	1
	PTT	3
	receive	4
model(s)	wire color	pin number
CB-2123	Audio	1
	Ground	4
	N/C	N/C
	Common	5
	PTT	2
	receive	3