Path: utzoo!utgpu!watserv1!watmath!att!att!linac!uwm.edu!bionet!apple!portal!cup.portal.com!schuster
From: schuster@cup.portal.com (Michael Alan Schuster)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Tape controller config: Archive SC400S and Everex (Bell Tec
Message-ID: <36321@cup.portal.com>
Date: 29 Nov 90 02:17:46 GMT
References: <17745@hydra.gatech.EDU>
Distribution: na
Organization: The Portal System (TM)
Lines: 16

>1) Archive SC400S - Need to know how to strap the address of this
>   card.  Address strap is a strip of 7 jumpers labeled A3-A9.

I've forgotten the specifics, but there are two varieties of address
decoding on the Archive cards. Basically, the address is in BINARY,
where the An label means 2^n. On the older cards, you turned bits on by
jumpering the straps (i.e. A8 gave you $200, A9 gave you $300, etc).
On the newer cards, you turned bits on by REMOVING jumpers (e.g.
all jumpered EXCEPT A9 gave you $300 ... etc).

The "older" cards were full-length and mostly discrete logic. The "newer"
cards (still made, I've heard) are half-length with more ASIC's on them
than discrete.


Hope this helps.