Fluke 225C User Manual - Page 82
CAN Bus, CAN Bus Measurement Connections, Table 4. CAN Bus Tested Signal Properties, Signal
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Fluke 19xC-2x5C Users Manual CAN Bus Default probe setting 10:1. Use the Fluke 10:1 probes. 1 Connect the red probe to the test tool input A, connect the grey probe to input B. 2 Connect the ground lead of the input A probe to the CAN bus High (CAN_H) 3 Connect the probe tip of the input A probe to the CAN bus Low (CAN_L) 4 Connect the ground lead of the input B probe to the CAN bus ground (CAN_GND) 5 Connect the probe tip of the input B probe to the CAN bus high (CAN_H) Note The bus normally has continuous data traffic. OBD2 DB-9 6 / 3 7 CAN-H 14/11 2 CAN-L CAN-GND 5/5 3 Figure 38. CAN Bus Measurement Connections Table 4. CAN Bus Tested Signal Properties Signal CAN Dom. H-L CAN Rec. H-L CAN-Level Data Rise Fall Jitter Overshoot Description Dominant high to low level voltage Recessive high to low level voltage Common mode voltage Bit width Rise time as % of bit width Fall time as % of bit width Jitter distortion Overshoot distortion 72