Chapter4 ConnectingSignals
ATE Series User Manual 4-30 ni.com
Caution Under no circumstances should you connect these +5 V powerp ins directly to
analog or digital ground or to any other voltagesource on th eAT E Series device or any
otherdevice. Doing so can damage the AT E Series device and the PC. NI is not liable for
damage resulting from such a connection.
Timing Connections
Caution Exceeding themaximum input voltage ratings, which are listed in Tables 4-3
through 4-6, can damage the ATE Series device and the PC. NI is not liable for any
damage resulting from such signal connections.
All externalcontrol over the timing of the AT E Series device is routed
through the 10 programmable function inputs labeled PFI0 through PFI9.
Thesesig nals are explained ind etail in the nextsecti on, Programmable
Function Input Connections. These PFIs are bidirectional; as outputs they
are not programmable and reflect the state of many data acquisition,
waveformgeneration, and general-purpose timing signals. There are five
other dedicated outputs for the remainder of the timing signals. As inputs,
the PFI signals are programmable and can control any data acquisition,
waveformgeneration, and general-purpose timing signal s.
Thedata acquisition signals are explained in the DAQ Timing Connections
sectionlater in this chapter. The waveform generation signals are explained
in the Waveform Generation Timing Connections section later in this
chapter.The general-purpose timing signals are explained in the
General-Purpose Timing Signal Connections section later in this chapter.
Alld igital timing connections are referencedto DGN D. This reference is
demonstrated in Figure 4-12, which showshow to connect an external
TRIG1 source and an external CONVERT*source to two of the
ATE Series device PFI pins.