Pinouts of Connectors

Apple SCSI connector pinout

layout
schematic diagram
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This connector is present on the Macintosh PowerBook series (except the Duo 210/230).

30 pin Apple HDI-30 connector pin-out & layout
30 pin Apple HDI-30 connector  at the Apple computer, looking into cable-side connector
Pin Name Description
1 SCSI-Mode SCSI disk mode enable signal
2 Data0 Data bit 0
3 GND Signal ground
4 Data1 Data bit 1
5 Termpwr +5 volts termination power
6 Data2 Data bit 2
7 Data3 Data bit 3
8 GND Signal ground
9 ACK Acknowledge
10 GND Signal ground
11 Data4 Data bit 4
12 GND Signal ground
13 GND Signal ground
14 Data5 Data bit 5
15 GND Signal ground
16 Data6 Data bit 6
17 GND Signal ground
18 Data7 Data bit 7
19 PARITY Data parity
20 GND Signal ground
21 REQ Request
22 GND Signal ground
23 BUSY Busy
24 GND Signal ground
25 ATN Attention
26 C/D Control/data
27 RST Reset
28 MSG Message
29 SEL Select
30 I/O Input/output

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Pinouts.ru > Pinouts of different harddrives connectors >  Pinout of Apple SCSI connector and layout of 30 pin Apple HDI-30 connector

Source(s): Apple "Ports and Pinouts"
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