>At 10:28 AM 4/17/01 +0900,Peter Payne wrote:
>> On Tuesday, April 17, 2001, at 09:00 AM, Franklyn Berry wrote:
>>... Bring in 12 + 5 volts from outside
>>the case, or hack a pee-cee NLX [200 watt] supply, which is the
>>smallest, closest footprint available, I think. The current supply
...
>Ah, that's a good idea. I think, for safety, I'll wire it externally, since
>I'll probably be hacking up some kind of external case along with the drive.
>
Easy enough to do: I'm thinking of using a second dock case JUST for
power with a cable running between the two -- since they already stack
so neatly, and are so cheaply available.
>>. I'm thinking a replacement for the floppy drive bay
>>is an easier workaround.
>>
>>
>How much extra room around the floppy is there? It would be nice, then I
>could use the "slot" and just extend it. If I can get the slot loading
>drive, that is.
>
More than enough depth: perhaps 3/8" toward the hard drive, but nothing
toward the rear side; the bulkhead that mounts the motor drive is
jammed-up and jelly-tight against it. You should probably plan to move
the hard drive toward the lock-side, making more room.
Check <http://homepage.mac.com/duopage/hardware/dockopen/dockopen.html>
for pictures.
...
>choices. the cable length will approx. triple, with "double"
>>the load. I used to have an url for figuring this out, somewhere....
>>
>>
>
>Hmm, sounds technical. What kind of cable will I need for this, exactly?
>
50 pin scsi with three connectors [for both a scsi-1 hard drive and cd].
a fourth connector for a terminator. all ordinary stuff purchasable at
any pc parts place or online.
The more challenging aspect is powering the 3 devices [including term] from
the single supply connector without draining [sagging the regulation on]
the supply.
Adapting the power cable is standard 'drive cable extender' stuff from the
pc world.
Terming the channel is a somewhat complex process. Check out
<http://www.scsischool.com/> for a brief medium-depth presentation of the
issues.
--frankb
Franklyn Berry
Maison de Pique-Assiette
Milwaukee, Wi 53211-3730
(414) 961-1641
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