TK50-GA external SCSI tape unit + Microvax 3100 Desktop

From: Chuck McManis <>
Date: Mon Dec 3 11:29:48 2001

Well there is only one size of Centronics SCSI connector, and its 50 pin.
You probably have the multiport serial option card which is a smaller (36)
pin SCSI connector that connects to a cable that splits it out into 4
serial ports.

The external SCSI is an option on this system, its possible you don't have
it. When you boot you do a test 50 and it shows two scsi busses? If not
then you need to "tap in" to the internal bus to get the TK50 on line.


At 04:02 PM 12/3/01 +0100, you wrote:
> >If the TK50 is terminated and the SCSI IDs are correct (tape drives
> >historically were ID5) and it's not seen at the console then something's
> >broken :) There should be a DIL switch on the back of the unit to set the
>Yes, it's in the back. I've tried all the adresses.
> >if I'm remembering right, and if you've got a stock MV3100 the internal
> >disks will probably be ID3 (system disk) and ID0 or 1 (data).
> >What SCSI cable are you using?
>One large Centronics SCSI to one large Centronics SCSI (I speak about
>the connectors in both extremes of cable).
> >To check that the drive itself is OK you can always take it out of its
> >expansion box, whip the cover off the VAX and connect directly to the
> >internal bus next to the 2 disks.
>I was think about it, but I should like to do something less "busy" ;-)
>Thanks and Greetings
Received on Mon Dec 03 2001 - 11:29:48 GMT

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