Pin A1000 A2/3000 CD32 A4000 1 +5V KCLK DATA I/O 2 CLOCK KDAT TxD n/c 3 DATA NC GND Ground 4 GND GND +5V +5VDC (100mA) 5 +5V CLOCK Clock 6 RxD n/c A1000 is RJ12 jack. A2000/3000 is a 5-pin DIN female. CD32 is a 6-pin miniDIN female. A4000 is a 6-pin miniDIN female.