Re: 3.5 Unidisk question

[saw@camalott.com (Alan)]

bigbob@pb.seflin.org (Robert Stoecker) wrote:

>I just purchased a 3.5 Apple Unidisk on apple2.marketplace and it works 
>fine.  I already have a 3.5 Unidisk, and this new one is 'just in case' 
>the original breaks down.
>
>Since I purchased both of these used, I have no manuals for them, but I 
>pose the following question:   Since the Unidisk comes with a cable 
>terminating in a RSC232 connector, what is the serial jack on the back of 
>the drive used for?   It's pretty obvious I can't daisy-chain them 
>together, and the Apple card (in slot 6) has only one lead.    Is there a 
>connection that can be made to my hard drive by daisy-chaining it to the 
>back with appropriate cables and terminators?
>
>Any advice will be appreciated.

well... since you asked...  the connector on the back is NOT an
RS-232-C, if that's what you're refering to as RSC232 (I'm not familar
with it written in that format).  Please don't plug in a serial device
to the drive controller or disk drive.  Although they look somewhat
alike, the DB-19 connector IS daisy-chainable...  just plug a drive
into the board (it becomes drive one) and plug the other drive into
the back of drive one.  Unless you have a IIgs, that's all that will
work on that controller card.  If you do have a IIgs you can
daisy-chain more drives together, although certain rules apply
regarding the order the drives appear.

>
>--
>                    /|     Bob Stoecker
>                   / |
>                  /  |\
>                 /   | \
>                /    |  \  I'd rather be sailing!
			me too
>               /_____|___\
>             ________|_____
>             \____________/
>       ~~~~~~~~~~~~~~~~~~~~~~~~~~

        Alan
e-mail: saw@camalott.com
 voice: +915.672.2881