| Title: | AMIGA NOTES |
| Notice: | Join us in the *NEW* conference - HYDRA::AMIGA_V2 |
| Moderator: | HYDRA::MOORE |
| Created: | Sat Apr 26 1986 |
| Last Modified: | Wed Feb 05 1992 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 5378 |
| Total number of notes: | 38326 |
Okay, here goes my first Amiga question...
I have a second ST225 that I would like to run of my 2090A controller.
I already have used the internal space on my first drive. have
this second drive currently mounted and poweredin a case. I think I
have two options:
1. Build a custom ST506 cable to mount the drive externally. The
physical part of this is not a problem as I have some cable,
connectors and have build cables before. What I lack is the
ST506 pinouts. The 2090A manual gives the SCSI but not the ST506.
Anyone out there have this pinouts?
2. Convert the drive to SCSI with an Adaptek 4000 something. What
is this converter? How many ST506's will it handle? About how
much and who sells it? Any information welcome.
Thanx,
...Ed
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 2293.1 | WJG::GUINEAU | Wed Mar 01 1989 08:37 | 4 | ||
I'm in a course right now, but if you mail me on WJG::GUINEAU I can photocopy a page in a spec and mail it to you. John | |||||
| 2293.2 | ST506 pins... | AKOV11::SMITH | Ed... | Thu Mar 09 1989 16:15 | 7 |
Thanx John,
I recieved the pinouts you sent today. I hope to build a custom
cable this weekend and add another 20MB.
...Ed
| |||||
| 2293.3 | HD add-on Complete | AKOV11::SMITH | Ed... | Mon Mar 13 1989 09:23 | 25 |
Well, I've finished adding my 2nd HD to my 2090A. Using the
pinouts for ST506 that John supplied I built a custom cable with
DB25 connectors. It turns out of the 54 (34 pin and 20 pin)
lines only 22 of them are signals and the rest are grounds. This
allowed me to put everything on a 25 pin connector (3 grounds).
I mounted the ST225 in an RX180 case I bought for $25. After
stripping the RX drives out and rearranging the power supply the
drive fit fine. Another nice feature is this allowed me to chain
the 120AC (plug the amiga into the RX180 case, RX180 into wall)
since the RX180 case was designed to chain 2 together.
Since it seemed a waste to not use the RX drives I have done the
modification to run them on the Amiga floppy connector. The real
trick here is to find a DB23M connector to build the cable. Everyone
has DB25's but no one seems to have a 23 pin. Any ideas where to
look?
I also picked up WB1.3 on the weekend and am starting some timimg
measurements on the second HD under the FFS. I hope to find the
best combination of INTERLEAVE, MAXTRANSFER, BUFFERS and then complete
the upgrade.
...Ed
| |||||
| 2293.4 | 23 pin conn... | FSDEV1::JBERNARD | John Bernard 292-2591 YWO/E3 | Mon Mar 13 1989 12:03 | 4 |
I have 23 pin connectors and hoods. Give me a call...
John
| |||||