Hi Mark, Do you just need a 4 or 9 slot backplane?
I Don't see the need for a repeater unless I'm missing something. Paul On Mon, Jun 15, 2015 at 10:57 AM, Mark J. Blair <[email protected]> wrote: > Has anybody ever made a UNIBUS repeater with a high speed serial link > between the bus segments yet? I'm curious because my VAX-11/730 backplane > is full, and it would be nice to be able to experiment with additional > hardware without needing to pull out one of the existing boards, i.e., > adding a TK50 interface without removing the DEUNA, adding a SCSI card to > boot from a scsi2sd without pulling the integrated drive controller, etc. > There's a blank spot in the TU80 cabinet that looks like it may be tall > enough for an expansion chassis, but the thought of adding more big ribbon > cables to the belly plate area and then routing them between racks doesn't > appeal to me. Running something like a CAT5 cable between the two racks > would be a lot easier. Another application would be for placing a small > remote UNIBUS backplane on the test bench for easy access, and cabling it > to a VAX or PDP-11 elsewhere in the room. > > This should be quite possible with modern hardware, but I'm curious about > whether something similar has been done before. > > -- > Mark J. Blair, NF6X <[email protected]> > http://www.nf6x.net/ > >
