36
Operation
Leading
EDGE COMPUTING
Input Coupling
When DC coupling is selected, DC offset present in the input sig-
nal is passed to ADC. DC coupling configuration is indicated when
the signal source has a small offset voltage or if the DC content of
the signal is important. When AC coupling is selected, DC offset
present in the input signal is removed. AC coupling configuration
is indicated when the DC content of the input signals is to be
rejected. AC coupling enables a high pass R-C filter through the
input signal path, with corner frequency (-3dB) about 0.4 Hz.
IEPE Input
For applications utilizing sensors such as accelerometers or
microphones, the MCM-100/102 provides an excitation current
source.
The excitation current is 2 mA for the IEPE sensors, with DC volt-
age offset generated because of the excitation current and sensor
impedance. When enabling IEPE current sources, the MCM-100/
102 automatically sets input configuration to AC coupling.
Figure 4-2: Excitation Current for IEPE Sensor Measurement
2mA
Constant
Current
VCC
IEPE ON/
OFF
AI Channel
IEPE Sensor
MCM-100
Analog Front End
Содержание MCM-100
Страница 6: ...vi Preface Leading EDGE COMPUTING This page intentionally left blank...
Страница 14: ...xiv List of Tables Leading EDGE COMPUTING This page intentionally left blank...
Страница 16: ...xvi List of Figures Leading EDGE COMPUTING This page intentionally left blank...
Страница 25: ...Introduction 9 MCM 100 102 Figure 1 3 MCM 100 Right Side View Figure 1 4 MCM 102 Right Side View...
Страница 27: ...Introduction 11 MCM 100 102 Figure 1 7 MCM 100 Right Side Panel I O Figure 1 8 MCM 102 Right Side Panel I O...
Страница 34: ...18 Introduction Leading EDGE COMPUTING This page intentionally left blank...
Страница 37: ...Getting Started 21 MCM 100 102 161 58 150 38 134 3 118 22 113 95 60 6...
Страница 44: ...28 Getting Started Leading EDGE COMPUTING This page intentionally left blank...
Страница 50: ...34 Driver Application Installation Leading EDGE COMPUTING This page intentionally left blank...
Страница 64: ...48 Operation Leading EDGE COMPUTING This page intentionally left blank...
Страница 85: ...BIOS Setup 69 MCM 100 102 A 2 8 Network Stack Configuration Network Stack Enables disables UEFI network stack...
Страница 87: ...BIOS Setup 71 MCM 100 102 SEMA Features Shows features supported by the SEMA version...
Страница 89: ...BIOS Setup 73 MCM 100 102 Power Consumption Shows current input current and power as well as system volt ages...
Страница 90: ...74 BIOS Setup Leading EDGE COMPUTING Flags Shows BMC flags with exception codes...
Страница 91: ...BIOS Setup 75 MCM 100 102 Power Up Lists Power Up Watchdog status...
Страница 92: ...76 BIOS Setup Leading EDGE COMPUTING A 2 10 Miscellaneous OS Selection Allows selection of active OS...
Страница 100: ...84 BIOS Setup Leading EDGE COMPUTING This page intentionally left blank...
Страница 116: ...100 Important Safety Instructions Leading EDGE COMPUTING This page intentionally left blank...