Unibus pinout
Pinout:
| AA1 | /INIT | BA1 | BG6 |
| AA2 | POWER(+5v) | BA2 | POWER(+5v) |
| AB1 | /INTR | BB1 | BG5 |
| AB2 | GROUND | BB2 | GROUND |
| AC1 | /D00 | BC1 | /BR5 |
| AC2 | GROUND | BC2 | GROUND |
| AD1 | /D02 | BD1 | GROUND |
| AD2 | /D01 | BD2 | /BR4 |
| AE1 | /D04 | BE1 | GROUND |
| AE2 | /D03 | BE2 | BG4 |
| AF1 | /D06 | BF1 | /ACLO |
| AF2 | /D05 | BF2 | /DCLO |
| AH1 | /D08 | BH1 | /A01 |
| AH2 | /D07 | BH2 | /A00 |
| AJ1 | /D10 | BJ1 | /A03 |
| AJ2 | /D09 | BJ2 | /A02 |
| AK1 | /D12 | BK1 | /A05 |
| AK2 | /D11 | BK2 | /A04 |
| AL1 | /D14 | BL1 | /A07 |
| AL2 | /D13 | BL2 | /A06 |
| AM1 | /PA | BM1 | /A09 |
| AM2 | /D15 | BM2 | /A08 |
| AN1 | GROUND | BN1 | /A11 |
| AN2 | /PB | BN2 | /A10 |
| AP1 | GROUND | BP1 | /A13 |
| AP2 | /BBSY | BP2 | /A12 |
| AR1 | GROUND | BR1 | /A15 |
| AR2 | /SACK | BR2 | /A14 |
| AS1 | GROUND | BS1 | /A17 |
| AS2 | /NPR | BS2 | /A16 |
| AT1 | GROUND | BT1 | GROUND |
| AT2 | /BR7 | BT2 | /C1 |
| AU1 | NPG | BU1 | /SSYN |
| AU2 | /BR6 | BU2 | /CO |
| AV1 | BG7 | BV1 | /MSYN |
| AV2 | GROUND | BV2 | GROUND |