[LAU] S/PDIF in with ESI Juli@ and JACK

Hello! I recently got myself an internal PCIe card, a ESI Juli@ XTe. It uses the ice1724 chipset, and I'm really happy with it. However, I cannot seem to get the S/PDIF in working. In JACK, 2 entries of the card shows up. One that says hw0,Juli, and one that says hw1,Juli, and also is noted as IEC958. My analogue ins and outs work fine, but only 2 ins show up in JACK, even though I'd imagine I'd get one more for my S/PDIF in. Does anyone have experience with this? I have all sorts of options in alsamixer/qasmixer (GUI-mixer I use), but I just can't wrap my head around it. It just won't work. If I use hw1,Juli as the device for JACK, it usually just crashes and there's no real difference. Any ideas here? Thanks!