Pinouts of Connectors

Unibus connector pinout

layout
schematic diagram
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Available on the old Digital PDP-11

72 pin 2x36 EDGE FEMALE connector pin-out & layout
72 pin 2x36 EDGE FEMALE connector  at the backplane
 
+------------//--------+   +------------//--------+
|AA1 AB1 AC1 // AU1 AV1|   |BA1 BB1 BC1 // BU1 BV1|
|AA2 AB2 AC2 // AU2 AV2|   |BA2 BB2 BC2 // BU2 BV2|
+------------//--------+   +------------//--------+
PIN SIGNAL
AA1 /INIT
AA2 POWER(+5v)
AB1 /INTR
AB2 GROUND
AC1 /D00
AC2 GROUND
AD1 /D02
AD2 /D01
AE1 /D04
AE2 /D03
AF1 /D06
AF2 /D05
AH1 /D08
AH2 /D07
AJ1 /D10
AJ2 /D09
AK1 /D12
AK2 /D11
AL1 /D14
AL2 /D13
AM1 /PA
AM2 /D15
AN1 GROUND
AN2 /PB
AP1 GROUND
AP2 /BBSY
AR1 GROUND
AR2 /SACK
AS1 GROUND
AS2 /NPR
AT1 GROUND
AT2 /BR7
AU1 NPG
AU2 /BR6
AV1 BG7
AV2 GROUND
   
BA1 BG6
BA2 POWER(+5v)
BB1 BG5
BB2 GROUND
BC1 /BR5
BC2 GROUND
BD1 GROUND
BD2 /BR4
BE1 GROUND
BE2 BG4
BF1 /ACLO
BF2 /DCLO
BH1 /A01
BH2 /A00
BJ1 /A03
BJ2 /A02
BK1 /A05
BK2 /A04
BL1 /A07
BL2 /A06
BM1 /A09
BM2 /A08
BN1 /A11
BN2 /A10
BP1 /A13
BP2 /A12
BR1 /A15
BR2 /A14
BS1 /A17
BS2 /A16
BT1 GROUND
BT2 /C1
BU1 /SSYN
BU2 /CO
BV1 /MSYN
BV2 GROUND

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Pinouts.ru > Pinouts of different motherboard slots >  Pinout of Unibus connector and layout of 72 pin 2x36 EDGE FEMALE connector

Source(s): Digital PDP-11 peripherals handbook and Rob Gill
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