Products Are needed to stick to a protocol so which the interrupt-request (IRQ) strains could be shared. The PCI bus consists of four interrupt traces, INTA# through INTD#, all of which can be obtained to every gadget. As many as 8 PCI gadgets share the same IRQ line (INTINA# by https://nathanlabsadvisory.com/iso-iec-19770-1-2017-it-asset-management/