HP 35401 protocol extensions ?

From: Frank McConnell <fmc_at_reanimators.org>
Date: Wed Aug 2 10:13:07 2000

Jarkko Teppo <jate_at_uwasa.fi> wrote:
> Does anyone know of the autochanger extensions for HP 35401 eight tape
> jukebox ? It's based on an HP 9144 cartridge drive and is compatible
> with it in normal operation, but I can't find the autochanger extensions
> *anywhere*!

Hmm, I wonder if that's what the CS/80 "Set Volume" command is for.
The command is 0x40, with the volume number (0-7) or'd into the
three least significant bits.

> If nothing helps I'll just chuck it back to my screaming dual-processor,
> WIN/TCP enabled HP 9000/550:)

You know with a hook like that I can't resist, right? I'm (or was,
anyway, TWG is pretty much gone now) the last maintainer of WIN/TCP
for the HP9000 series 500.

How does the changer work from HP-UX on the 550? Can it be told to
pick a specific cartridge, or does it just step through cartridges as
each is unloaded? We didn't have a changer; well, we did, but it was
either me or the guy who did the backups.

-Frank McConnell
Received on Wed Aug 02 2000 - 10:13:07 BST