AA		AB		BA		BB
01	VIRQ5		+5		DCLO		+5
02	VIRQ6		-12		ACLO		-12
03	AP16		GND		A18		GND
04	AP17		+12		A19		+12
05	UMAP		DOUT		A20		AD2
06	DCE		RPLY		A21		AD3
07	SEL		DIN		LTCF		AD4
08	GND		SYNC		GND		AD5
09	SP		WTBT		SP		AD6
10	SP		VIRQ4		SP		AD7
11	GND		IAKI		GND		AD8
12	DMR		IAKO		SACK		AD9
13	HALT		BS		VIRQ7		AD10
14	REFRESH		DMGI		EVNT		AD11
15	+5 bck		DMGO		+12 bck		AD12	
16	GND		INIT		GND		AD13
17	SP		AD0		SP		AD14
18	+5 bck		AD1		+5		AD15