National Instruments 1128 用户手册

下载
页码 97
© National Instruments Corporation
D-1
D
SCXI-1127/1128 
Front Connector
This appendix contains connector diagrams for the SCXI-1127/1128 
switch cards. The diagrams also show the signal names that are used 
when the modules are in 2-wire mode, 1-wire mode, 4-wire mode, and 
4
× 8 matrix configuration.
When you connect a custom terminal block or cable it is important that you 
incorporate the safety interlock scheme into the terminal block/cable. You 
do this by connecting the +5 V (ISO)_HVAB_EN signal to the +5 V (ISO) 
signal. These signals are shown in the following figures. Refer to Table D-1 
for descriptions of signal names.