Supplying Power to Encoders.............................................. 186
Serial Interface........................................................................... .. 187
I/O Circuit and Electrical Characteristics................................ 188
Connecting RS232 Devices.................................................. 189
Connecting RS422 Devices.................................................. 191
CAN Bus Interface........................................................................ 193
I/O Circuit and Electrical Characteristics................................ 193
Connecting CAN Devices..................................................... 194
General Notes and Tips on Signal
Conditioning
195
Grounding and Shielding.............................................................. 196
Definitions of Different Ground Signals............................... 197
Grounding Signals............................................................... 197
Shielding............................................................................. 198
Avoiding Noise and Crosstalk....................................................... 200
Reducing Crosstalk.............................................................. 200
Wiring Up External Devices.................................................. 200
ADC Performance of dSPACE Boards............................................ 202
Definition of SNR................................................................. 202
Notes on Measuring Noise................................................... 203
Notes on Using AutoBox............................................................ .. 204
Grounding Scheme for AutoBox/Tandem AutoBox.............. 204
Influences on Board Performance Using AutoBox/Tandem-
AutoBox.............................................................................. 206
Filter Circuit for AutoBox/Tandem-AutoBox Power Supply.... 207
Troubleshooting
209
Hardware Problems...................................................................... 210
Checking the DS1103.......................................................... 210
Problems with Multiple Plug & Play Boards.......................... 211
Problems Using an Expansion Box via Bus Connection......... 213
Problems Related to the Firmware....................................... 213
Problems with the Ethernet Connection..................................... .. 214
General Errors Using Ethernet Connection........................... 214
Restoring BIOS Setup of the Slot CPU.................................. 215
Problems When Setting Up the TCP/IP Protocol.................... 216
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