National Instruments 321906B-01 用户手册
Chapter 1
Routing Signals with Your NI 2501/2503
1-4
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National Instruments Corporation
Connecting Signals
This section describes the signal connections to the NI 2501/2503 module
via the module front connector. This section also includes specifications
and connection instructions for the signals on the NI 2501/2503 module
connectors.
via the module front connector. This section also includes specifications
and connection instructions for the signals on the NI 2501/2503 module
connectors.
Caution
Static electricity is a major cause of component failure. To prevent damage to the
electrical components in the module, observe antistatic precautions whenever
removing a module from the chassis or whenever working on a module.
electrical components in the module, observe antistatic precautions whenever
removing a module from the chassis or whenever working on a module.
Front Connector
The pinout assignments for the NI 2501/2503 front connector vary
depending on the wiring mode you use. The following four diagrams show
the pin assignments for two-wire mode, one-wire mode, four-wire mode,
and matrix mode, respectively. Two-wire mode is shown first because it is
the most common configuration. Table 1-1, following the diagrams,
describes the connector signals. For more information on the wiring modes,
refer to the
depending on the wiring mode you use. The following four diagrams show
the pin assignments for two-wire mode, one-wire mode, four-wire mode,
and matrix mode, respectively. Two-wire mode is shown first because it is
the most common configuration. Table 1-1, following the diagrams,
describes the connector signals. For more information on the wiring modes,
refer to the
.
Warning
Any connections that exceed the maximum settings for the NI 2501/2503 can
result in an electrical shock hazard and damage to the NI 2501/2503 module and
any or all of the boards connected to the PXI backplane. National Instruments
is NOT liable for any damages or injuries resulting from exceeding maximum
voltage ratings. Refer to Appendix A,
result in an electrical shock hazard and damage to the NI 2501/2503 module and
any or all of the boards connected to the PXI backplane. National Instruments
is NOT liable for any damages or injuries resulting from exceeding maximum
voltage ratings. Refer to Appendix A,
, for information.
!