With the Timing and Synchronization upgrade, the PXIe-1092 supports routing PXI triggers between chassis using a pair of high-density trigger connectors on the rear of the chassis.

The following table shows the high-density trigger connector pinout.

Table 9. High-Density Trigger Connector Pinout
Pin Signal Top Port Signal Bottom Port
1 Trig(0)
2 Logic Ground
3 Trig(4)
4 Trig(1)
5 Logic Ground
6 Trig(5)
7 Trig(2)
8 Logic Ground
9 Trig(6)
10 10 MHz Ref In + 10 MHz Ref Out +
11 Logic Ground
12 10 MHz Ref In - 10 MHz Ref Out -
13 Reserved
14 Trig(3)
15 SCL
16 SDA
17 Logic Ground
18 Presence Detect
19 Trig(7)
Figure 22. High-Density Trigger Ports


Routing triggers between chassis requires using a NI API such as NI-DAQmx. You can target the individual pins of each trigger port as sources or destinations for PXI triggers to or from a PXI module. If the chassis are connected to the same host via MXI, targeting these pins is not necessary; you can specify a source device in one chassis and a destination device in another chassis, and the software makes the necessary trigger routes automatically.

Notice The high-density trigger ports are not HDMI interfaces. Do not connect the high-density trigger ports on the PXIe-1092 to the HDMI interface of another device. NI is not liable for any damage resulting from such signal connections.
Notice You can use off-the-shelf HDMI cables to connect adjacent chassis. However, because off-the-shelf cables may be of varying quality, for best performance use NI-recommended cables available at ni.com.
Notice For proper operation, you must cable the Port 1/Ref Out port of one chassis to Port 0/Ref In of the adjacent chassis. Do not connect Port 0/Ref In to Port 0/Ref In of another chassis. Do not connect Port 1/Ref Out to Port 1/Ref Out of another chassis. While no damage will occur in either of these configurations, the trigger routing capabilities will not be functional.
Note You can route triggers either direction out of either trigger port.