deang@tekig4.TEK.COM (Dean Gehnert) (08/22/88)
The system consists of a CMS SCSI card, Seagate ST-157N, drive case and
power supply from Norvac in Beaverton (local electonics supply), and a
cable with DB-25 to 50-pin connection.
The system price was:
CMS SCSI card.......................... $115.00 + shipping
Drive Case and Power Supply............ $125.00
Seagate ST-157N 50-60meg............... $450.00 approx. new price
Misc. connectors and parts............. $ 10.00
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Total.................................. $700.00
The drive case I bought was for making a floppy or hard disk external for
an IBM or compatible. There is room inside for 2 half height drives and
the case came with a power supply and connectors for 2 drives (half height).
The CMS SCSI card came with a "hard" format, drive test, park heads, and
Backup II to do backups of the NEW drive. First you want to setup the
drive with partitions (CMS explains this) and drive ID=0. Secondly, format
the drive with the "hard" format and then use the PRODOS utils to format
the disk again (puts FAT (File Allocation Table on disk) this will be
needed to make the disk usable. By the way, you need to format both
partions to use them (32 meg max. YUCK Prodos 1.3).
Then you will need the following for the cable:
approx. 6" of 50 conductor ribbon cable
50-pin connector crimp style
DB-25 (RS-232 25-pin) male connector
Good Luck to you all!!
Dean W. Gehnert
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DB-25 male 50-pin connector | Actual pin view
---------- ---------------- |________________________________________
1 48 |\1 2 3 4 5 6 7 8 9 10 11 12 13/
2 42 | \ 14 15 16 17 18 19 20 21 22 23 24 25/
3 50 | ------------------------------------
4 40 | ________
5 38 | <1 2 | NOTE: all odd pins are
6 36 | |3 4 | grounded on a SCSI
7 1* | |5 6 | 50-pin connection
8 2 | |7 8 |
9 1* | |9 10|
10 8 | |11 12|
11 12 | |13 14|
12 14 | |15 16|
13 16 | |17 18|
14 1* | |19 20|
15 46 | |21 22|
16 1* | |23 24|
17 32 | |25 26|
18 1* | |27 28|
19 44 | |29 30|
20 18 | |31 32|
21 4 | |33 34|
22 6 | |35 36|
23 10 | |37 38|
24 1* | |39 40|
25 NC | |41 42|
| |43 44|
NOTE: 1* implies a connection to | |45 46|
1 or any other ODD pin/wire| |47 48|
(which is GRND) | |49 50|
| --------
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Dean Gehnert, Tektronix Inc. phone:(503) 627-4428
tektronix!tekig4!deang | deang@tekig4.UUCP | deang@tekig4.LEN.TEK.COM
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