Table e-1 – National Instruments SCXI-1121 User Manual
Page 124
Appendix E
SCXI-1121 Cabling
E-2
www.natinst.com
You can use a standard 50-pin ribbon cable instead of the SCXI-1340 cable
assembly. The SCXI-1340 has the following advantages over the ribbon
cable:
•
The SCXI-1340 has strain relief so that you cannot accidentally
disconnect the cable.
•
The SCXI-1340 includes a mounting bracket that mounts to the chassis
so that you can remove and reinsert the module without explicitly
removing the cable from the back of the chassis. This is especially
useful when the SCXI chassis is rack mounted, making rear access
difficult.
•
The SCXI-1340 has an extra male breakout connector for use with the
SCXI-1180 feedthrough panel or additional modules or breadboards
that need a direct connection to the MIO-16 board.
•
The SCXI-1340 rear panel gives the module and the chassis both
mechanical and electrical shielding.
Table E-1 lists the pin equivalences of the MIO-16 and the SCXI-1121.
Table E-1. SCXI-1121 and MIO-16 Pinout Equivalences
Pin
SCXI-1121 Rear
Signal Connector
MIO-16 Equivalent
1–2
AOGND
AIGND
3
MCH 0+
ACH0
4
MCH 0–
ACH8
5
MCH 1+
ACH1
6
MCH1–
ACH9
7
MCH2+
ACH2
8
MCH2–
ACH10
9
MCH3+
ACH3
10
MCH3–
ACH11
11
MCH4+
ACH4
12
MCH4–
ACH12
19
OUTREF
AISENSE
24, 33
DIG GND
DIG GND