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  1. Path: jobe.shell.portal.com!jkesling
  2. From: jkesling@shell.portal.com (John Darrell Kesling)
  3. Newsgroups: comp.sys.amiga.hardware
  4. Subject: Re: Apple 2.5" SCSI HD in A3000?
  5. Date: 19 Feb 1996 17:05:37 GMT
  6. Organization: Portal Communications Company -- 408/973-9111 (voice) 408/973-8091 (data)
  7. Message-ID: <4gaal1$2nt@news1.shell>
  8. References: <4g0ekj$ebq@nyx10.cs.du.edu> <4g260i$9i3@rapidnet.com>
  9. NNTP-Posting-Host: jobe.shell.portal.com
  10. X-Newsreader: TIN [version 1.2 PL2]
  11.  
  12. Warren Block (wblock@rapidnet.com) wrote:
  13. >Chris Yardley (jyardley@nyx10.cs.du.edu) wrote:
  14. >:  Does anyone know where to get an adapter or pinout for an Apple 2.5" 
  15. >: SCSI HD so I can hook it to my 3000's scsi bus?
  16.  
  17. >I went looking for the 2.5-inch pinouts at www.quantum.com, but naturally 
  18. >the only entry they had for those drives had no link!
  19.  
  20. >Other than obtaining the pin-out, it should just be a matter of 
  21. >custom-wiring a ribbon cable with IDC connectors.
  22.  
  23. Here are the pinouts for 2.5 inch SCSI drives.  Someone else, sorry I've
  24. lost the name, originally posted this several months ago.
  25.  
  26. I also have a 2.5 inch SCSI to 3.5 inch SCSI adapter kit that I picked
  27. up when I had a line on a 2.5 inch SCSI drive.  It consists of small
  28. printed circuit board that plugs into the drive, on the other end of
  29. the board is a standard 50 pin SCSI connector and a standard power
  30. connector.  The kit also includes a bracket to mount a 2.5 inch SCSI
  31. drive in a 3.5 inch drive bay.  I paid $25.00 plus shipping, at the
  32. time it was hard to find, might be easier now.  If anyone would like the
  33. adapter kit I have I'll let it go for $20.00 and I'll pay shipping.
  34.  
  35. Here are the pinouts if you'd like to try making your own.
  36.  
  37. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
  38.  
  39. >From my files...
  40.             Pinouts for Quantum GoDrive SCSI:
  41.  
  42. This is excerpted, sort of, from the _Go-Drive_40/80S_Product_Manual_,
  43.     copyright 1991 by Quantum Corp.
  44.  
  45.  
  46. The connector is a single 2 x 25 connector on 2mm centers for power,data
  47. and SCSI device address.  The connector also includes four pins (pins 1-4
  48. of J2) which are reserved as factory test points.
  49.  
  50.  
  51.                  J1                         J2
  52. Pin39                              Pin1          Pin1
  53. |                                     |         /
  54. o o o o o o o o o o o   o o o o o o o o   o o o o
  55. o o o o o o o o o o o o o o o o o o o o   o o o o
  56. |                                     |
  57. Pin40                              Pin2
  58.  
  59. Recommended mating P/N:  Dupont 69764-050 or equiv.
  60.  
  61. **                                                                     **
  62. **  I found 24 and 28 pos dual row 2mm connecters from Digi-Key Corp   **
  63. **                          1-800-344-4539                             **
  64.  
  65. To prevent the possibility of incorrect installation, the hole of the
  66. mating ocnnector that corresponds to pin 17 of J1 should be plugged.  Max
  67. cable length = 12"
  68.  
  69. Pins 5-7 of J2 are used for hardware selectable device address as follows:
  70.  
  71.  
  72. Pin 5     Pin 6     Pin 7     SCSI id
  73. -----     -----     -----     -------
  74. hi        hi        hi        0
  75. lo        hi        hi        1
  76. hi        lo        hi        2
  77. lo        lo        hi        3
  78. hi        hi        lo        4
  79. lo        hi        lo        5
  80. hi        lo        lo        6
  81. lo        lo        lo        7
  82.  
  83. Pin 8 of J2 can be used to drive an LED during periods of drive activity.
  84.  
  85.  
  86. Signal            Pin                     Signal            Pin
  87. -----------       ----                    -----------       ----
  88. +5V (logic)       1                       +5V (logic)       2
  89. Logic return      3                       Logic return      4
  90. GND               5                       DB0               6
  91. GND               7                       DB1               8
  92. GND               9                       DB2               10
  93. GND               11                      DB3               12
  94. GND               13                      DB4               14
  95. GND               15                      DB5               16
  96. KEY               17                      DB6               18
  97. GND               19                      DB7               20
  98. GND               21                      Parity            22
  99. GND               23                      Termination Power 24
  100. -ATTN             25                      -BSY              26
  101. GND               27                      -ACK              28
  102. -RST              29                      -MSG              30
  103. GND               31                      -SEL              32
  104. -I/O              33                      -C/D              34
  105. GND               35                      -REQ              36
  106. Motor Return      37                      Motor Return      38
  107. +5V (motor)       39                      +5V (motor)       40
  108.  
  109.  
  110. Saved without attribution from Mac.Hdwe
  111.  
  112. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
  113.  
  114. --
  115. ----------------------------------------------------------------------
  116. John Kesling  -  jkesling@shell.portal.com   or   jkesling@norden1.com
  117. ----------------------------------------------------------------------
  118.   WA8ZGO      -  via AX.25 packet radio WA8ZGO@W8HHF.OH.USA
  119. ----------------------------------------------------------------------
  120.  
  121.