This connector is for 2.5" internal harddisks.
(at the controller & peripherals)
(at the cable)
40 PIN IDC (0.75") MALE at the controller & peripherals.
40 PIN IDC (0.75") FEMALE at the cable.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | +5V | +5 VDC | |
| 1 | +5V | +5 VDC | |
| 1 | RET | Return (Ground?) | |
| 1 | RET | Return (Ground?) | |
| 1 | GND | Ground | |
| 2 | DB0 | Data Bus 0 | |
| 1 | GND | Ground | |
| 4 | DB1 | Data Bus 1 | |
| 1 | GND | Ground | |
| 6 | DB2 | Data Bus 2 | |
| 1 | GND | Ground | |
| 8 | DB3 | Data Bus 3 | |
| 1 | GND | Ground | |
| 10 | DB4 | Data Bus 4 | |
| 1 | GND | Ground | |
| 12 | DB5 | Data Bus 5 | |
| 1 | GND | Ground | |
| 14 | DB6 | Data Bus 6 | |
| 1 | GND | Ground | |
| 16 | DB7 | Data Bus 7 | |
| 1 | GND | Ground | |
| 18 | PARITY | Data Parity (odd Parity) | |
| 24 | GND | Ground | |
| 26 | TMPWR | Termination Power | |
| 32 | /ATN | Attention | |
| 36 | /BSY | Busy | |
| 24 | GND | Ground | |
| 38 | /ACK | Acknowledge | |
| 40 | /RST | Reset | |
| 42 | /MSG | Message | |
| 24 | GND | Ground | |
| 44 | /SEL | Select | |
| 50 | /I/O | Input/Output | |
| 46 | /C/D | Control/Data | |
| 24 | GND | Ground | |
| 48 | /REQ | Request | |
| 1 | RET | Return (Ground?) | |
| 1 | RET | Return (Ground?) | |
| 1 | +5V | +5 VDC | |
| 1 | +5V | +5 VDC |
Note: Direction is Device relative Bus (other Devices).
Connector is: AMP 6-176135
| Contributor: | Joakim Ögren |
| Source: | Electrical Interface Spec for IBM DPRS-20810 and DPRS-21215 at IBM Hard disk drive support |
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13