From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: comp.periphs.scsi
Subject: Everything you wanted to know about Wangtek 5150ES drives...
Date: 12 Jul 92 20:30:46 EDT
Organization: St. Peter's College, US

In article <710892474snx@hclb.demon.co.uk>, devans@hclb.demon.co.uk (Dave Evans) writes:
> Including Terry Kennedys drive,  I believe there must be at least 4
> different versions of the Wangtek PCB.  I've seen at least 2 different
> EPROMS.   Does no one at Wangtek read this newsgroup who could offer
> some enligtenment ?   Our local distributor is quite helpfull, but
> their data sheets don't correspond with my drives, nor with Terry
> Kennedys'.

  First, the disclaimer: This is not an official representation of Wangtek
or of my employer. This is info I've discovered by reading publicly avail-
able reference material. When changing jumpers, always observe proper anti-
static precautions and be sure you have the current configuration written
down so you have a known starting point.

  Ok. Here's the complete scoop on Wangtek 5150ES drives:

  The current part number for a "generic" 5150ES is:

  33685-201 (black faceplate)
  33685-202 (beige faceplate)

  These are referred to as the "ACA version" of the drive.

  There are _many_ other part numbers for 5150ES drives. If you have one that
isn't one of the above, it doesn't mean you have an old or an out of rev drive,
it just means its a special version created for a distributor or OEM, or with
different default jumper settings.

  You can order the Wangtek 5150ES OEM Manual from Wangtek. It is part number
63045-001 Revision D. Wangtek can be reached at:

  WANGTEK Incorporated
  41 Moreland Road
  Simi Valley, CA 93065
  (805) 583-5255 [voice]
  (805) 583-8249 [FAX]
  (805) 582-3370 [BBS]

  WANGTEK-Europe
  Unit 1A, Apollo House
  Calleva Industrial Park
  Aldermaston, Reading
  RG7 4QW England
  (44) 734-811463 [voice]
  (44) 734-816076 [FAX]
  851-848135 [telex]
    
  There are 5 possible logic boards. Here are the jumper options for each:

  Logic assembly #33678
  ---------------------

  (J10)
  0 - SCSI unit LSB
  1 - SCSI unit
  2 - SCSI unit MSB
  K - not documented

  J32 - Diagnostic test connector, default is not installed

  E1, F1 - SCSI termination power. E1 in = power from drive and to cable,
	   E1 out - power from cable. F1 = terminator power fuse, 1.5A FB.
	   Default is IN.

  E2 - Chassis ground. E2 in jumpers logic to chassis ground. E2 out isolates
       through a .33 uFD capacitor. Default is IN.

  E5 - Master oscillator enable. Test only. Must be IN.

  E20 - Factory test. Must be OUT.

  RP1, RP2, RP3 - SIP terminators. Default is IN, remove for no termination.

  Logic assembly #30559
  ---------------------

  HDR1 - Factory testing. Setting depends on drive. Don't touch.

  HDR2 - Factory testing. Defaults are pins 15-16, 17-18, 19-20. Don't touch.

  HDR3 pin 1 - A-B enables buffered mode. B-C disables. Can be overridden by
               SCSI Mode Select.

  HDR3 pin 2, 3 - Default data format. Set to B-C for a 5150ES.

  HDR3 pin 4 - parity enable. A-B enables, B-C disables.

  (J10)
  0 - SCSI unit LSB
  1 - SCSI unit
  2 - SCSI unit MSB
  K - not documented

  E1 - SCSI termination power. E1 in = power from drive and to cable,
       E1 out - power from cable.

  E2 - Chassis ground. E2 in jumpers logic to chassis ground. E2 out isolates
       through a .33 uFD capacitor. Default is IN.

  E3 - Master oscillator enable. Test only. Must be IN.

  E4 - Write test mode. Test only. Must be OUT.

  E5 - Write oscillator enable. Test only. Must be IN.

  E6 - Disable HDR2. Test only. Must be IN.

  E7 - Microcontroller clock select. In for a 5150ES.

  E8 - Write precomp select. Set on a per-drive basis. Don't touch.

  E9 - RAM size. Don't touch.

  E10 - Erase frequency. Don't touch.

  RP2, RP3 - DIP and SIP terminators. Default is IN, remove for no termination.

  Logic assembly #30600
  ---------------------

  HDR1 - Factory testing. Setting depends on drive. Don't touch.

  HDR2 - Write precomp select. Set on a per-drive basis. Don't touch.

  HDR3 pin 1, 2, 3 - SCSI device address. 1 is LSB, 3 is MSB. A-B=1, B-C=0

  HDR3 pin 4 - Parity enable. IA-B is enabled.

  HDR3 pin 5, 6 - Default data format. B-C for a 5150ES.

  HDR3 pin 7 - Buffered mode select. A-B is enabled.

  HDR3 pin 8 - Reserved. Must be OUT.

  HDR4 - Write frequency select. Don't touch.

  E1 - SCSI termination power. E1 in = power from drive and to cable,
       E1 out - power from cable.

  E2 - Chassis ground. E2 in jumpers logic to chassis ground. E2 out isolates
       through a .33 uFD capacitor. Default is IN.

  E3 - Hard/soft reset. IN enables hard reset.

  E4 - Write precomp select. Don't touch.

  E5 - Clock speed. Don't touch.

  E6 - Tape hole test. Don't touch.

  Logic assembly #30552
  ---------------------

  HDR1 - Factory testing. Setting depends on drive. Don't touch.

  HDR2 - Write precomp select. Set on a per-drive basis. Don't touch.

  HDR3 pin 1, 2, 3 - SCSI device address. 1 is LSB, 3 is MSB. [Note - HDR3
		     pins 1-3 are duplicated at another location on the board]

  HDR3 pin 4 - Parity enable. IN is enabled.

  HDR3 pin 5, 6, 7, 8 - Default data format. 5,5 B-C, 7-8 A-B for a 5150ES.

  HDR4 - Write frequency select. Don't touch.

  E1 - SCSI termination power. E1 in = power from drive and to cable,
       E1 out - power from cable.

  E2 - Chassis ground. E2 in jumpers logic to chassis ground. E2 out isolates
       through a .33 uFD capacitor. Default is IN.

  E3 - Hard/soft reset. IN enables hard reset.

  E4 - Write precomp select. Don't touch.

  E5 - Clock speed. Don't touch.

  E6 - Tape hole test. Don't touch.

  Logic assembly #30427
  ---------------------

  HDR1 - Factory testing. Setting depends on drive. Don't touch.

  HDR2 - Write precomp select. Set on a per-drive basis. Don't touch.

  HDR3 pin 1, 2, 3 - SCSI device address. 1 is LSB, 3 is MSB. A-B=1, B-C=0

  HDR3 pin 4 - Parity enable. IA-B is enabled.

  HDR3 pin 5, 6, 7, 8 - Default data format. 5,5 B-C, 7-8 A-B for a 5150ES.

  E1, E3 - Factory test. Must be IN.

  E2 - SCSI termination power. E2 in = power from drive and to cable,
       E2 out - power from cable.

  E4 - Chassis ground. E4 in jumpers logic to chassis ground. E4 out isolates
       through a .33 uFD capacitor. Default is IN.

  Firmware - There are many flavors of firmware. I have seen the following
parts:

  24115-xxx
  24144-xxx
  21158-xxx

  the -xxx suffix changes as the firmware is updated. According to the folks
I spoke to at Wangtek, the standard firmware is the 21158. The latest version
as of this writing is 21158-007. All of these will work with the Adaptec and
GTAK.

  The firmware options (as returned by a SCSI Identify) are on the end of the
product string, which is "WANGTEK 5150ES SCSI ES41C560 AFD QFA STD" for the
21158-007 firmware. The 3-letter codes have the following meaning:

  AFD - Automatic Format Detection - the drive will recognize the format (such
	as QIC-24, QIC-120, or QIC-150) that the tape was written in.

  QFA - Quick File Access - the ability to rapidly locate a tape block, and
	to implement the "position to block" and "report block" SCSI commands.
	This is compatible with the Tandberg implementation.

  STD - Standard feature set.

  I hope you find this information useful.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, Jersey City, NJ USA
	terry@spcvxa.spc.edu	+1 201 915 9381