F-FEM-DAC
F-FEM-DACF-FEM-DAC
F-FEM-DAC
Operating Manual
47
7Glossary
Add-on A name for the F-FEM-DIO. It has no IEEE1349 network connection
but must be connected to an F-FEM-DAC, F-FEM-CNT or
F-FEM-CON using the add-on interface.
DAC Digitaler Analog Converter.
Converts digital numbers into proportional analog quantities.
DI Digital input
DO Digital output
EMCON Engine Monitoring and CONtrol.
FEM Classic Generation preceding the F-FEMs.
F-FEMs Acronym for Fast Front End Modules.
These include all F-FEMs that belong to the IEEE1394 family.
IEEE1394 High-speed bus for linking F-FEM modules. Baud rates of 100, 200 or
400 Mbps are possible. Supports the sychronism of a distributed
system by using an isochronous protocol.
JTAG Joint Test Action Group
Test methed for checking the production quality and possibilities for
commissioning and debugging. Is described in the IEEE1149.1
standard.
PUMA Open Test bed and instrumentation automation system.
PWM Pulse width modulation.
Repeater Amplifier and pulse shaper for the extension of lines which carry digital
signals. A repeater acts like an IEEE1394 node.
The entered signal is digitally filtered and then reduced to the desired
data rate. The signal is sampled at a rate that is several times higher
than the double bandwidth of the signal. Thus, a simple input filter is
sufficient.
VCXO Voltage controlled quartz oscillator.
Zero track A speed encoder with a zero track (Z) can detect a reference mark.
The zero track indicates e.g. the top dead center (reference pulse).
To Next Page
Loading...
