NI PXI-5404
REF OUT Connector
The REF OUT connector is an output connector that can route out a signal from the following sources:
- CLOCK out
- Divided-down Sample clock timebase (20 MHz by default, derived from VCXO generated clock)
- REF IN connector
- PXI 10 (backplane clock)
- Software trigger
- PXI Star trigger
- PFI 0 connector
- PXI trigger bus (RTSI lines)
The output clock has values of VOH = 4.07 V and of VOL = 0.44 V into HiZ. Rise and fall time for the output clock is 2.4 ns.