ADLINK PXI-7931 - Manual (Page 15)

Signal Connection • 9
3
Signal Connection
3.1 PXI-7931 Topology
Relays on the PXI-7931 are configured into a 4-group 2x4 2-wire matrix. Users
can switch on/off to connect or disconnect any number of rows to any number
of columns in the same bank. This configuration can let user simultaneous
connects one or more input signals to one or more devices. All signal paths on
PXI-7931 are inherently break-before-make.
The TB-6231 is a 2-wire terminal board; each path has two ways (i.e. R0 is
indicated as R0+ and R0-).
Figure 3: 2-wire paths