Computer buses and slots connectors pinouts  > obsolete computers pinouts
Pin Name Description
1n/cReserved
2n/cReserved
3n/cReserved
4n/cReserved
5n/cReserved
6n/cReserved
7n/cReserved
8n/cReserved
9GNDGround
10+5V+5 Volts DC
11A23Address 23
12A22Address 22
13A21Address 21
14A20Address 20
15A19Address 19
16A18Address 18
17A17Address 17
18A16Address 16
19GNDGround
20+5V+5 Volts DC
21A15Address 15
22A14Address 14
23A13Address 13
24A12Address 12
25A11Address 11
26A10Address 10
27A9Address 9
28A8Address 8
29GNDGround
30+5V+5 Volts DC
31A7Address 7
32A6Address 6
33A5Address 5
34A4Address 4
35A3Address 3
36A2Address 2
37A1Address 1
38A0Address 0
39GNDGround
40+5V+5 Volts DC
41D31Data 31
42D30Data 30
43D29Data 29
44D28Data 28
45D27Data 27
46D26Data 26
47D25Data 25
48D24Data 24
49GNDGround
50+5V+5 Volts DC
51D23Data 23
52D22Data 22
53D21Data 21
54D20Data 20
55D19Data 19
56D18Data 18
57D17Data 17
58D16Data 16
59GNDGround
60+5V+5 Volts DC
61D15Data 15
62D14Data 14
63D13Data 13
64D12Data 12
65D11Data 11
66D10Data 10
67D9Data 9
68D8Data 8
69GNDGround
70+5V+5 Volts DC
71D7Data 7
72D6Data 6
73D5Data 5
74D4Data 4
75D3Data 3
76D2Data 2
77D1Data 1
78D0Data 0
79GNDGround
80+5V+5 Volts DC
81/IPL2 
82/IPL1 
83/IPL0 
84n/cReserved
85/RSTReset
86/HLTHalt
87n/cReserved
88n/cReserved
89SIZE1 
90SIZE0 
91/ASAddress Strobe
92/DSData Strobe
93R/WRead/Write
94/BERRBus Error
95n/cReserved
96/AVEC 
97/DSACK1 
98/DSACK2 
99CPUCKLA 
100ECLOCKEClock pulse
101GNDGround
102+5V+5 Volts DC
103FC2Processor Status 2
104FC1Processor Status 1
105FC0Processor Status 0
106/RMC 
107n/cReserved
108n/cReserved
109n/cReserved
110n/cReserved
111/BRSlot specific Bus Arbitration
112/BGSlot specific Bus Arbitration
113n/cReserved
114/BOSS 
115/FPUCSFPU Chip select
116/FPUSENSEFPU Sense
117CCKA 
118/RESETReset
119GNDGround
120+5V+5 Volts DC
121/NETCS 
122/SPARECS 
123/RTCCSRealtime Clock Chip select
124/FLASH 
125/REG 
126/CCENA 
127/WAIT 
128/KBRESETKeyboard reset
129/IORDIO Read
130/IOWRIO Write
131/OEOutput enable
132/WE 
133/OVR/DTACK Override
134XRDYExternal Ready
135/ZORRO 
136/WIDE 
137/INT2Interrupt level 2
138/INT6Interrupt level 6
139GNDGround
140+5V+5 Volts DC
141SYSTEM1System1 Ground
142SYSTEM0System0 Ground
143/xRxD 
144/xTxD 
145/CONFIG OUT 
146AGNDAudio Ground
147ALEFTAudio Left
148ARIGHTAudio Right
149+12V+12 Volts DC
150-12V-12 Volts DC

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Source(s) of this and additional information: Hardware Book
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