Units Are required to follow a protocol so the interrupt-request (IRQ) traces is usually shared. The PCI bus consists of 4 interrupt strains, INTA# via INTD#, all of which can be found to every device. Up to 8 PCI products share a similar IRQ line (INTINA# as a result of https://nathanlabsadvisory.com/why-iso-17025-certification-in-uae-is-essential-for-your-laboratory/