National Instruments Network Device DAQ S - Manual (Page 149)

Appendix A Device-Specific Information
© National Instruments Corporation A-11 NI 6124/6154 User Manual
• CB-37FH—37-pin screw terminal block, horizontal, DIN rail mount
• CB-37FV—37-pin screw terminal block, vertical, DIN rail mount
• TB-37F-37CP—37-pin crimp & poke terminals, shell with strain
relief
• TB-37F-37SC—37-pin solder cup terminals, shell with strain relief
• CB-37F-HVD—37-pin screw terminal block, 150 V CAT II, DIN rail
mount
To connect your DAQ device to a screw terminal accessory, use one of the
following cables:
• SH37F-37M-2—37-pin female-to-male shielded I/O cable, 150 V,
2 m (non-EMI shielding)
• SH37F-37M-1—37-pin female-to-male shielded I/O cable, 150 V,
1 m (non-EMI shielding)
• SH37F-P-4—37-pin female-to-pigtails shielded I/O cable, 4 m
• R37F-37M-1—37-pin female-to-male ribbon I/O cable, 1 m 1
• DB37M-DB37F-EP—37-pin male-to-female enhanced performance
shielded I/O cable, 1 m (EMI shielding)
For more information about optional equipment available from National
Instruments, refer to the National Instruments catalog or visit the National
Instruments Web site at
ni.com .
NI 6154 Isolation and Digital Isolators
The NI 6154 is an isolated data acquisition device. As shown in Figure 2-2,
General NI 6124 Block Diagram , the analog input, analog output, and
PFI/static DIO circuitry are referenced to separate isolated grounds for each
circuit. The bus interface circuitry, RTSI, digital routing, and clock
generation are all referenced to a non-isolated ground. Table A-3 shows the
ground symbols referenced in Figure 2-2.
1 Not recommended for EMC-sensitive applications.
Table A-3. Ground Symbols
Ground Symbol
Isolated Ground
Non-Isolated Ground