68 pin SCSI

yo,

what adaptor do i need to connect a 68pin SCSI drive to an A2091? is it male/male?, male/female? etc, etc

cheers, JuvUK

@Juv

the Harddisk will have a Female connector, most adapters follow this suit.

you would need a 50pin male/female to 68pin Female gender changer-

something like this (click Images for links)

SCSI 68 Pin Female to 50 Pin Female Adapter Converter (£3.98 eBay.co.uk Buy It now Free Postage)
http://imgs.inkfrog.com/pix/ynlcabin...8FT50F-1-C.jpg

http://imgs.inkfrog.com/pix/ynlcabin...8FT50F-2-C.jpg

http://imgs.inkfrog.com/pix/ynlcabin...8FT50F-3-C.jpg

With this adapter you will need a 68pin SCSI IDC Cable


somthing like this would be grand m8

Foxconn SCSI Cable 68pin 4 Head Twisted Pair+Terminator ( £3.80 eBay Buy It Now Free P&P)
http://i.ebayimg.com/14/%21BUlCRlwBW...1%7E%7E_12.JPG

Of course it would probably be best to use the 50pin female to 68pin female adapters like the following for the 50pin optical drive

DATAMATE SCSI 50pin to 68pin Adapter (eBay.co.uk Buy It Now £5.59 Free P&P)
http://i19.ebayimg.com/01/i/001/6c/2b/dcad_12.JPG

That way you can use just one Cable for both devices, the cable above also provides termination.

Sorry Zetr0, isnt it this one ?

http://media.uxcell.com/i/09a/ux_a09...x0077_ux_c.jpg

50pin male to 68pin male scsi.

This would convert the drive down to 50pin scsi, and just use the cable that came with the A2091. You might have to check termination though.

50pin scsi drives have male connectors, 68pin scsi have female connectors.

@TheoryBoy

indeed! well found!!!

Is there any consideration in doing this other than getting an adapter? Is there a maximum drive size the Amiga can handle, or does that depend on the controller?

thanks both for the info:thumbsup:

i've just been given a 37.5gb 68 pin known working SCSI hard drive, now this is my 1st foray into SCSI, so what is this "termination" you talk of? and do they do a male/female gender changers for terminators?

i'll be back.............to check this thread later:)

cheers, JuvUK

---------- Post added at 15:33 ---------- Previous post was at 15:31 ----------

Quote:

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Originally Posted by commodorejohn

Is there any consideration in doing this other than getting an adapter? Is there a maximum drive size the Amiga can handle, or does that depend on the controller?

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drive size matters depending on os roms, scsi controller rom versions and software used

for example my A1200 uses all 60gb of it's hard drive:)

You might have to search for the datasheet on your drive, but usually there is a jumper on the board of the drive to set termination. Usually in a 68pin scsi chain there is a signal terminator at the end, but since your run is short you may have to get the drive to terminate the chain (be it chain of 1)

@JuvUK

For drives over 4.5GB you need a 68pin to 50 with High-Byte termination!
(also called: 9 line negation termination )
High-byte termination is not the same with bus termination!

Chris

hmmmm this is getting more and more confusing for us thickies:sos:-?

Ignore me was thinking in SCA Mode for a minute.

Heres a cheat sheet for scsi.

http://www.goesp.com/Downloads/Docum...heat-sheet.pdf