Units are required to comply with a protocol so that the interrupt-request (IRQ) strains might be shared. The PCI bus consists of 4 interrupt strains, INTA# by means of INTD#, all of which are offered to every unit. As much as eight PCI equipment share the identical IRQ line (INTINA# https://nathanlabsadvisory.com/data-protection-officer-service-virtual-dpo/