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Re: Interest, Discussion and R&D on a 18 Slot S100 Backplane & ATX PSU board.



Hi Alex,

i have done a small run of a prototype board but i have not yet had the time to assemble it and verify it even works. i (to be honest) am a little more busy with other boards at the moment so i wouldnt wait for this one. the MeanWell supplies are used by allot of the guys on this forum (i even have one) so if its cheap i would suggest you get that. but i will keep the group updated on the board for future use. im sure you can appreciate that a not 100% power supply circuit is as good as throwing your system in the pool.. probably more bad than good. and i wouldnt want to release any such board to people with it having been rigorously tested.

Hi VInce,

the part number is "D4AA23-ND" "TRIMMER 2K OHM 0.1W TH" 

Hi Neil,

the termination circuit is the same for allot of pervios board, including the Compupro, Godbout, johns backplane and bus terminator cards. so the termination voltage is the same. tune to around 2.6-2.7v on unloaded pins using the trimmer. i have included below a link to the Godbout documentation (that can be found on the wiki under the S100 18SL backplace folder.. 

http://n8vem-sbc.pbworks.com/w/file/fetch/81582440/Godbout_S-100_Active_Terminator_Manual.PDF


Antony