> > On 03 May 2016 at 18:20 "Maciej W. Rozycki" <ma...@linux-mips.org> wrote: > > > On Mon, 2 May 2016, Robert Jarratt wrote: > > > I decided to attempt the construction of an adapter. But it is the > > connectors which always bite me because I don't know what all the types > > of > > connector are. I naively assumed that an IDC 10-way (2x5) would do the > > trick, but it is too wide to go into the male connector on the board. > > > > What kinds of connectors exist for ribbon cables that can be used to go > > into > > a 2x5 connector, but which don't have a lot of space at the sides? > > I think this header is intended for a crimp wire receptacle, like: > <http://uk.rs-online.com/web/p/pcb-connector-housings/8215708/>. This is > non-polarised though; getting one that is polarised and with the right key > might be a bit of a challenge. Alternatively a PCB socket like: > <http://uk.rs-online.com/web/p/pcb-sockets/7655648/> would do too; again > getting a polarised one seems tough. >
The crimp wire one looks like it would work, thanks for the suggestion! > > > I don't know which of the two solutions the original DEC SROM "dongle" > used. I can only find 3 references quoting the part number, which is/was > 96-RM001-01. It provided for a standard DECconnect cable, so I think it's > actually quite likely that it was just a small daughtercard with a PCB > socket, line driver and receiver ICs (DEC documentation quotes 1488 and > 1489, but with a pair of wires used for communication that looks like an > overkill to me -- a single IC like MAX232N would do IMHO; RS sell them > individually even) and their associated passive components, and then an > MMJ socket, all on the PCB. Obviously these days you probably want a DE-9 > connector instead. ;) > I have a MAX232CPE now, just need the connectors and one more 1uF capacitor and I should have all I need. > > > I wonder if I shouldn't actually make something like this myself just for > fun -- to have a way to peek at my DEC 3000's internals even though it > appears healthy overall. > > Maciej >
