Equipment Are needed to observe a protocol so the interrupt-request (IRQ) traces is usually shared. The PCI bus features 4 interrupt lines, INTA# by means of INTD#, all of which are available to each device. Around eight PCI devices share precisely the same IRQ line (INTINA# through INTINH#) in APIC-enabled https://nathanlabsadvisory.com/iso-55001-2014-certification-it-asset-management/