Modify the Signal Routing configuration file to define synchronization triggers when using the RF Recording Software in systems that use more than one chassis.

Find the file at <Program Files>\National Instruments\NI ICsc\Support\SignalRouting.ini.

Note Ensure that SignalRouting.ini reflects the external cabling for reference clocks and triggers performed in Cabling for System Use.

[Settings] Section

Use the [Settings] section to configure the master VST trigger line to import and export. The [Settings] section is required.

Table 35. [Settings]
Key Value Required?
SyncPulseExport PXI trigger line, as listed in NI MAX, that the master VST (VST_00) uses to export the synchronization pulse. Required
SyncPulseImport PXI trigger line, as listed in NI MAX, that all VSTs use to import the synchronization pulse. Required
StartTriggerExport PXI trigger line, as listed in NI MAX, that the master VST (VST_00) uses to export its start trigger. Required
StartTriggerImport PXI trigger line, as listed in NI MAX, that all VSTs use to import the start trigger. Required

Example: 

[Settings]
SyncPulseExport = PXI_Trig0
SyncPulseImport = PXI_Trig1
StartTriggerExport = PXI_Trig2
StartTriggerImport = PXI_Trig3
Note By default, the example connections are all commented out with a semicolon (;). Remove the semicolons to uncomment the lines in the configuration file.

[Chassis:X] Section

Use [Chassis:X] sections to specify the timing module, synchronization routes, and trigger routes for each chassis. [Chassis:X] section names are required and must be unique, for example: [Chassis:0]. Create a new [Chassis:X] section for each chassis in your system.

Table 32. [Chassis:X]
Key Value Required?
TimingCardName NI MAX alias for the synchronization module in the chassis Required
SyncPulseRoutes Comma-separated routes formatted as <trigger source>:<trigger destination>. Terminal names are dictated by NI-Sync. Refer to Trigger Terminal Connections in the NI-Sync User Manual for more information. Required
StartTriggerRoutes Comma-separated routes formatted as <trigger source>:<trigger destination>. Terminal names are dictated by NI-Sync. Refer to Trigger Terminal Connections in the NI-Sync User Manual for more information. Required

Example: 

[Chassis:0]
TimingCardName = 6674T_00
SyncPulseRoutes = PXI_Trig0:PFI0,PFI1:PXI_Trig1
StartTriggerRoutes = PXI_Trig2:PFI0,PFI1:PXI_Trig3

[Chassis:1]
TimingCardName = 6674T_01
SyncPulseRoutes = PFI1:PXI_Trig1
StartTriggerRoutes = PFI1:PXI_Trig3
Note By default, the example connections are all commented out with a semicolon (;). Remove the semicolons to uncomment the lines in the configuration file.