National Instruments PCI-1200 - page 26

Chapter 3 Signal Connections
PCI-1200 User Manual 3-4 © National Instruments Corporation
The connector pins are grouped into analog input signal pins, analog output
signal pins, digital I/O signal pins, timing I/O signal pins, and power
connections. The following sections describe the signal connection
guidelines for each of these groups.
40 EXTCONV* DIO DGND External Convert—External control
signal to time A/D conversions (DI) and
drive SCANCLK when you use SCXI
(DO).
41 OUTB0 DO DGND Output B0—Digital output signal of
counterB0.
42 GATB0 DI DGND Gate B0—External control signal for
gating counter B0.
43 OUTB1 DIO DGND Output B1—Digital output signal of
counterB1 (DO). External control
signal for timing a scan interval (DI).
44 GATB1 DI DGND Gate B1—External control signal for
gating counter B1.
45 CLKB1 DI DGND Clock B1—External control clock
signal for counterB1.
46 OUTB2 DO DGND Counter B2—Digital output signal of
counterB2.
47 GATB2 DI DGND Gate B2—External control signal for
gating counter B2.
48 CLKB2 DI DGND Clock B2—External control clock
signal for counterB2.
49 +5 V DO DGND +5 Volts—This pin is fused for up to 1 A
of +4.65 to +5.25 V.
* Indicates that the signal is active low.
AI = Analog Input DI = Digital Input DIO = Digital Input/Output
AO = Analog Output DO = Digital Output N/A = Not Applicable
Table 3-1. Signal Descriptions for PCI-1200 I/O Connector Pins (Continued)
Pin Signal Name Direction Reference Description