Chapter 3
Signal Connections
SCXI-1102/B/C User Manual
3-10
©
National Instruments Corporation
the Lab-LC boards, respectively. Table 3-1 lists the equivalencies. For
more detailed information, consult your cable installation guide.
Digital Timing Signal Connection
The SCXI-1102/B/C module uses pin 36, SCANCLK, to increment to
the next channel after each DAQ device conversion during scanning.
Digital Signal Specifications
The following specifications and ratings apply to the digital signals:
•
Absolute max voltage input rating
5.5 V with respect
to DGND
•
Digital input specifications (referenced to DGND)
–
V
IH
input logic high voltage
2 V min
–
V
IL
input logic low voltage
0.8 V max
–
I
I
input current leakage
±
1
µ
A max
•
Digital output specifications (referenced to DGND)
–
V
OH
output logic high voltage
3.7 V min at 4 mA max
–
V
OL
output logic low voltage
0.4 V max at 4 mA max
Table 3-1.
SCXIbus to SCXI-1102/B/C Module Rear Signal Connector to DAQ Device Pin Equivalencies
SCXIbus
Line
SCXI-1102/B/C
Rear Signal
Connector
MIO-16
Lab Boards
PC-LPM-16
MOSI
SERDATIN
ADIO0
PB4
DOUT4
D*/A
DAQD*/A
ADIO1
PB5
DOUT5
INTR*
SLOT0SEL*
ADIO2
PB6
DOUT6
SPICLK
SERCLK
EXTSTROBE*
PB7
DOUT7
MISO
SERDATOUT
BDIO0
PC1
DIN6
