Re: IIgs and APS 230 Magnetic Optical - No go

[shack@deimos.frii.com (Randy Shackelford)]

In article <5noreo$ab6@dove.qut.edu.au>,
Willie Yeo <yeo@pigeon.qut.edu.au> wrote:
>Bradley P. Von Haden (bpvh@primenet.com) wrote:
>
>: My system: ROM 03, Apple Hi-speed SCSI card, Quantum 240 hard drive,
>: Can anyone offer any suggestions?
>
>	I wonder if the MO requires a termination power like those of the 
>Zip drive to an Apple HS SCSI card ???

That's not the problem. APS SR2000 enclosures have digital active termination.
Active termination, like the name implies, has hardware that monitors the SCSI
bus, ensuring proper levels of termination power are present. Digital active
termination is exclusive to APS, and is pretty spiffy. My IIgs' 230 mb Quantum
hard disk lives in an SR2000 enclosure.

I tried my APS 230 MO on my IIgs once, with the same results. When on the 
chain with a hard disk, the IIgs would not boot. I tried it on my ROM 01 with
rev C SCSI card as the only device, and booted the IIgs from Appleshare. It
didn't see any SCSI device connected. I called APS to ask why it didn't work
and didn't get much of an answer. The drive works fine on my Mac Plus and 
Powerbook, neither of which provide terminator power themselves. And the hard
disk in the SR2000 on my IIgs works great, which rules out DAterm as a cause.
I guess the bottom line is just no dice using that drive on a II.
-- 
Randy Shackelford                                 
shack@frii.com