©
National Instruments Corporation
vii
About This Manual
Thank you for purchasing the National Instruments PXI-6653 (NI 6653)
Timing and Synchronization Module. The NI 6653 enables you to pass PXI
timing and trigger signals between two or more PXI chassis. The NI 6653
can generate and route clock signals between devices in multiple chassis,
providing a method to synchronize multiple devices in a multichassis PXI
system.
This manual describes the electrical and mechanical aspects of the NI 6653
and contains information concerning its operation and programming.
Conventions
The following conventions appear in this manual:
<>
Angle brackets that contain numbers separated by an ellipsis represent a
range of values associated with a bit or signal name—for example,
DIO<3..0>.
»
The
»
symbol leads you through nested menu items and dialog box options
to a final action. The sequence
File»Page Setup»Options
directs you to
pull down the
File
menu, select the
Page Setup
item, and select
Options
from the last dialog box.
This icon denotes a tip, which alerts you to advisory information.
This icon denotes a note, which alerts you to important information.
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on
the product, see the
Safety Information
for precautions to take.
bold
Bold text denotes items that you must select or click in the software, such
as menu items and dialog box options. Bold text also denotes parameter
names and hardware labels.
CompactPCI
The CompactPCI bus is a Eurocard configuration of the PCI bus for
industrial applications.
italic
Italic text denotes variables, emphasis, a cross reference, or an introduction
to a key concept. This font also denotes text that is a placeholder for a word
or value that you must supply.
