I have a couple of Paravision SX-1 expansions for the Amiga CD32 game console, and I want to use the external DB-37 pin port for storage, however, I have never seen anything that uses that connector. What kind of devices use it?
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3You might want to add a bit more information, like what compuer this is about, what is a SX-1 or a DB-37 (Do you mean DC-37?) and what interface it is used for. Last but not least, what storage are you talking about? To me a SX-1 is a supercomputer while DB-37 is a small boat– RaffzahnCommented Aug 9 at 15:39
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DB37 connectors were (are still?) used in telecommunications systems. I have seen some hard drives wired to them back in the '80s but only as bit of a kludge.– Chenmunka ♦Commented Aug 9 at 17:27
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1@Chenmunka DB37? Sure? Got any link?– RaffzahnCommented Aug 9 at 19:15
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@Raffzahn, no link I'm afraid. I may have an old manual in the attic. If I get a moment over the weekend...– Chenmunka ♦Commented Aug 9 at 20:24
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2 Answers
The external connector is a non-standard reduced pin count IDE connector. I'm not aware of any commercially released accessories to connect to it but you could make a custom cable to attach up to two external IDE devices. DMA does not appear to be supported.
The pin-out can be found on pinouts.ru and is reproduced below.
37 pin D-SUB female connector
(at the controller)
| Pin | Name | Description |
|---|---|---|
| 1 | /IDE-RESET | Drive Reset |
| 2 | D0 | Data bit 0 |
| 3 | D2 | Data bit 2 |
| 4 | D4 | Data bit 4 |
| 5 | D6 | Data bit 6 |
| 6 | GND | Ground |
| 7 | D8 | Data bit 8 |
| 8 | D10 | Data bit 10 |
| 9 | D12 | Data bit 12 |
| 10 | D14 | Data bit 14 |
| 11 | GND | Ground |
| 12 | GND | Ground |
| 13 | GND | Ground |
| 14 | GND | Ground |
| 15 | GND | Ground |
| 16 | GND | Ground |
| 17 | GND | Ground |
| 18 | +5V | 5V Power |
| 19 | +5V | 5V Power |
| 20 | GND | Ground |
| 21 | D1 | Data bit 1 |
| 22 | D3 | Data bit 3 |
| 23 | D5 | Data bit 5 |
| 24 | D7 | Data bit 7 |
| 25 | GND | Ground |
| 26 | D9 | Data bit 9 |
| 27 | D11 | Data bit 11 |
| 28 | D13 | Data bit 13 |
| 29 | D15 | Data bit 15 |
| 30 | /IOW | I/O Write |
| 31 | /IOR | I/O Read |
| 32 | IDE-IRQ | Interrupt Request |
| 33 | IDE-A2 | Address bit 2 |
| 34 | IDE-A1 | Address bit 1 |
| 35 | IDE-A0 | Address bit 0 |
| 36 | /BICS1 | Chip Select 1 |
| 37 | /BICS0 | Chip Select 0 |
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1@Raffzahn Correct, but since certain people like to argue about the nomenclature for these connectors I just kept the original generic "d-sub" wording + pin count from the linked page.– mnemCommented Aug 10 at 17:32
Likely nothing. The 37-pin port of the SX-1 expansion for the Amiga CD32 seems to be entirely proprietary. The port was intended to connect external IDE hard drives (in addition to the internal one, which uses an IDC connector), but IDE connectors have either 44 or 40-pin IDC connectors, never D-Sub.
You'll likely have to make your own cable if you want to use this connector.
