On Sat, Nov 14, 2020 at 6:46 AM Gene Heskett <ghesk...@shentel.net> wrote:
> > I have a 2" $70 Gibralter with very flat jaws. Does a great job of > crimping. A year and 2-3 disconnects later, the cover is warped up in > the middle and theres no connection for the 3 or 5 wires in the middle. > Recrimp it and set your clock for 6 months. Wash rinse and repeat. I'm > obviously tired of it. > I saw faults like this, caused by a bad crimp. The individual wires are supposed to slide into the y-shaped insulation displacement blades, past the narrowing. If they don't, it's not a gas-tight connection and fails eventually. Maybe take the cover off, and inspect the cables and the blades---they should poke through the insulation to a uniform height. If you're (un?)lucky you may see some wires being just barely on the forks, not fully in. You can use a flat blade screwdriver placed right behind the forks to push individual wires down past the narrowing. This is by the way not a bad way of crimping them in the first place, if you don't have a proper crimper---and let me tell you that crimping 68-pin IDC connectors in one shot is not easy. Properly done, the iDC are very reliable---a lot of equipment is using them, and for dozens of years. Definitely not failing every year. By the way, the Russians and Bulgarians gate-for-gate-copied PDP and IBM computers back in the seventies/eighties. THey were quite unreliable; the difference was DEC and IBM used properly engineered, good quality connectors, which were unavailable behind the Iron Curtain. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
