Products are needed to abide by a protocol so the interrupt-request (IRQ) lines may be shared. The PCI bus consists of four interrupt strains, INTA# by INTD#, all of which can be obtained to each unit. Approximately eight PCI devices share precisely the same IRQ line (INTINA# by INTINH#) in https://nathanlabsadvisory.com/building-an-effective-incident-response-team-roles-and-responsibilities/