Is this cable (530-1884) OK for HVD SCSI ??

From: Dr. David Kirkby (see_my_signature_for_my_real_address_at_hotmail.com)
Date: 04/05/04

  • Next message: Dr. David Kirkby: "Re: Ultra 2 RAM in Ultra 80, and Sun Ray question" 
    Date: 4 Apr 2004 16:04:50 -0700

    I'm looking for a SCSI cable to connect an HVD autoloader (StorEDGE
    L9) to a SCSI card. I have a 1 m long cable, 530-1884, which is listed
    on Sunsolve

    http://sunsolve.sun.com/handbook_pub/Devices/Cables/530-1884.html

    but no mention of use for is made. There is nothing to suggest the
    cable is for any particular SCSI type, or suitable for high voltage
    differentail (HVD) use.

    If the pinout at
    http://www.paralan.com/qc68.html

    is to be believed, pins 1-16, 20-34 are all ground in single ended
    cables, but not on differential cables. The pinout listed on the Sun
    cable show these pins are NOT commoned, but have sepparate wires for
    each. This makes me think the cable is likely to be suitable for HVD.
    (From what I gather, some cables cut down the number of conductors
    needed by commoning the ground lines. This makes them totally
    unsuitable for HVD use).

    I don't know the cable impedance, but suspect this is pretty
    irrelavant on a 1 m cable.

    I've not tried this cable yet, but I have tried another 68-68 pin SCSI
    cable with a non-Sun HVD card. The card is reconised at the OBP, but
    the autoloader is not seen on the bus.

    david [ DOT] kirkby [AT ] onetel [ DOT ] net

  • Next message: Dr. David Kirkby: "Re: Ultra 2 RAM in Ultra 80, and Sun Ray question"

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