find the assembly order so that it reaches the latch on the front panel and Pin 1, steel retention lug, lateral left PCB mount, https://www.neutrik.com/en/product/ncj10fi-v-0 Combo I series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fah A Series, 3 pole female XLR receptacle, grounding: ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3maah AA Series, 3 pole female.