Marvin Test Solutions GX5280, User Manual

Page: 12 / 50

4 GX5280 User Guide
DIO Domains
A DIO domain has one Master DIO board and up to 15 DIO Slave boards. A DIO domain comprise of Master, its
Slaves, Carriers and related modules. Figure 2-1shows two domains from two different families on a PC bus.
Figure 2-1: Two Different DIO Domains on One PC Bus
Domains are internally synchronized and controlled via the PXI local bus. To synchronize a domain with a UUT,
you need to synchronize the Master board’s Timing signals using the Master’s Timing connector.
A full domain containing sixteen DIO boards provides up to 512 UUT I/O channels (512 channels wide ). Because
the driver supports 16 masters, up to 16 domains of mixed types can, in principle, be supported in a PXI system. The
number of master/slaves depends on the number of available free PXI slots in your system.
PXI Bus
UUT
Master
32 I/O
Slave
1
32 I/O
Slave 2-7
UUT
Master Slave 1 Slave 2 Slave 3-7
Domain 1 Domain 2
32 I/O 32 I/O 32 I/O 32 I/O 32 I/O
Data to / from PXI bus
Synchronization & Control via PXI trigger & local bus
UUT Timing, Ext Events, Synchronization
Digital Data to / from UUT
Digital Domain