Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

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Dalplex
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Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Sun Jun 11, 2017 11:44 am

Hi,

The indigo boot up to the login screen and I have no way to proceed. All guest account that I know is not available.

I am thinking about connecting the CD-ROM from Sun sparc station 5 externally to indigo but not sure the combination will be bootable?

Thanks for your advise
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robespierre
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby robespierre » Sun Jun 11, 2017 11:50 am

It should work fine. Do you have the required cabling (CN50 to IDC50 and a terminator)?
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Dalplex
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Sun Jun 11, 2017 4:16 pm

The active terminator is available from the Indigo. But I do not have any cables that can connect the CD-ROM 50 pin receptacle to the external SCSI receptacle.

I am still trying to figure out whether it was possible use Sun sparc original internal SCSI cable, which I thought might be feasible on O2 with sca but not for Indigo case.
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby robespierre » Sun Jun 11, 2017 6:03 pm

SCA is the 80-pin connector with data and power together. I don't believe any CD/DVD drive has that connector.
The Sun Aurora chassis has a SCA backplane for hard disks, but the CD connector is a 50-pin IDC type. The cable is a special type for the Aurora, something like HD50M --- IDC50F --- HD50M to go over to the SCA backplane. It wouldn't work at all in the O2, the types of connectors are different.

To connect a CDROM drive to the external SCSI port on an Indigo, you can either use a disk enclosure (which has a power supply and the requisite data cabling), or hack something together with a suitable cable and a spare ATX power supply.
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Dalplex
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Tue Jun 13, 2017 7:55 pm

Bought a Toshiba TXM5701s without power supply.
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Wed Jun 14, 2017 2:35 pm

Had never seen this kind of receptacle before.

IMG_0199.JPG
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Thu Jun 15, 2017 3:48 am

Believe this is the same mini din as 3D view.

IMG_0202.JPG
IMG_0202.JPG (38.98 KiB) Viewed 296 times
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby robespierre » Thu Jun 15, 2017 7:16 pm

It is some proprietary configuration of DC power connector. It could be +5V, +12V, Gnd, if the drive uses both +12V and +5V rails, which I don't know offhand. Or it could be some other voltage or pair of voltages if there is an internal power converter. But Mini-DIN connectors are not rated to 120VAC and the device wouldn't pass approvals if it was 120V.
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Dalplex
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Thu Jun 15, 2017 7:42 pm

Internally directly connect to molex connector on the CD-ROM.

IMG_0201.JPG
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby robespierre » Thu Jun 15, 2017 10:17 pm

That makes it easier. If they've used standard colors, the yellow is +12V, the red is +5V, and the black is Gnd return.
That looks like standard Mini-DIN-3.
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby josehill » Fri Jun 16, 2017 4:28 am

Dalplex wrote:Had never seen this kind of receptacle before.

This type of power connector was very common back then, especially on SCSI peripherals that used external power bricks.

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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Fri Jun 16, 2017 4:39 am

I believe this was true.

I have to admit this is the first time for me seeing 3 pins mini din.

Indigo does use it on the 3D google receptacle at the back of display card.
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dodoid » Sat Jun 24, 2017 9:29 am

I think I have one of those 3 pin things for a USB DVD drive I have. Totally unrelated to SCSI or SGI, but, it's the same connector (though not guaranteed to be the same electrically).
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Re: Sun sparcstatuin 5 CD-ROM bootable for Indigo r4000 ?

Unread postby Dalplex » Sat Jun 24, 2017 11:29 pm

I ordered a few from Xbay and plan to retrofit an Atx molex connector to it.
Too bad, almost everything I have does not work directly by themselves.
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