BNC-2110 Installation Guide 8 ni.com
Table 3. Digital and Timing I/O Terminal Descriptions
Ter m inal Description
PFI <1..7>/
P1.<1..7>
Programmable Function Input channels 1 through 7 or Port 1 Digital Input/Output
channels 1 through 7
PFI <8..9>/
P2.<0..1>
Programmable Function Input channels 8 through 9 or Port 2 Digital Input/Output
channels 0 through 1
PFI 10/P2.2 Programmable Function Input channel 10 or Port 2 Digital Input/Output channel 2
EXT STROBE (External Strobe Signal)—You can toggle this output with software
controls to latch signals or trigger events on external devices
PFI 11/P2.3
*
Programmable Function Input channel 11 or Port 2 Digital Input/Output channel 3
AI HOLD COMP (AI Hold Complete Event Signal)—When enabled, this signal pulses
once for each A/D conversion in sampling mode. The low-to-high edge indicates when the
input signal can be removed from the input or switched to another signal.
PFI 13/P2.5 Programmable Function Input channel 13 or Port 2 Digital Input/Output channel 5
CTR 1 OUT (Counter 1 Output Signal)—As an input, this pin can be used to route signals
directly to the RTSI bus. As an output, this pin emits the Ctr1InternalOutput signal.
PFI 14/P2.6 Programmable Function Input channel 14 or Port 2 Digital Input/Output channel 6
FREQ OUT (Frequency Output)—This output is from the frequency generator
P0.<0..7> Port 0 Digital Input/Output channels 0 through 7—You can individually configure each
signal as an input or output. P0.6 and P0.7 can control the up/down signal of
general-purpose Counters 0 and 1, respectively
D GND Digital Ground—This terminal supplies the reference for the digital signals at the I/O
connector as well as the +5 VDC supply
USER <1..2> User-Defined 1 and 2—Internally routed to USER 1 or USER 2 BNC, this terminal
provides a user-definable BNC terminal. Refer to the Using the USER 1 and USER 2 BNC
Connectors section for more information about using these signals.
+5 V +5 V Power Source—These terminals are fused on the DAQ device; the current available
depends on the device to which it is connected. Refer to your DAQ device specifications
for more information.
AI GND
*
Analog Input Ground—The analog input voltages are referenced to this node
AI SENSE
*,†
Analog Input Sense—This terminal is the reference node for channels AI <0..15> in
non-referenced single-ended (NRSE) configurations
*
E/M/S Series devices only.
†
Single-ended mode is not recommended on the BNC-2110.
(44 strony)
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