05 | Keysight | Serial Bus Options for InfiniiVision X-Series Oscilloscopes - Data Sheet
Serial Bus Eye-diagram and Pulse Mask Testing
With the addition of the DSOX2MASK, DSOX3MASK, DSOX4MASK or DSOX6MASK mask test option, which can perform over 200,000
pass/fail tests (50,000 on 2000 X-Series) per second, you can perform eye-diagram and pulse mask testing on CAN signals on all
InfiniiVision X-Series oscilloscopes. Eye-diagram mask testing on FlexRay, MIL-STD 1553, and ARINC 429 signals can be performed
using an InfiniiVision 3000, 4000 or 6000 X-Series oscilloscope. Eye-diagram measurements provide a comprehensive signal quality
test of the integrity of your transmitted and received signals. Keysight provides various mask files that you can download at no charge.
The mask files are based on published industry mask standards and/or derived from physical layer/electrical specifications.
The following CAN mask files are available:
– 125 kbps – 400 meters
– 250 kbps – 200 meters
– 500 kbps – 10 meters
– 500 kbps – 80 meters
– 800 kbps – 40 meters
– 1000 kbps – 25 meters
Mask files for CAN FD are also available (3000, 4000, and 6000
X-Series only). CAN FD eye-diagrams are based on the first
10 bits of the FD phase from all frames.
Figure 6. CAN 500 kbps mask test on 10 meter system.
The following FlexRay mask test files are available:
– TP1 standard voltage (10 Mbps only)
– TP1 increased voltage (10 Mbps only)
– TP11 standard voltage (10 Mbps only)
– TP11 increased voltage (10 Mbps only)
– TP4 10 Mbps
– TP4 5 Mbps
– TP4 2.5 Mbps
Figure 7. FlexRay TP4 eye-diagram mask test.
The following MIL-STD 1553 mask test files are available:
– System xfmr-coupled Input
– System direct-coupled Input
– BC xfmr-coupled Input
– BC direct-coupled Input
– RT xfmr-coupled Input
– RT direct-coupled Input
Figure 8. MIL-STD 1553 BC to RT xfrm-coupled input mask test reveals a
shifted bit that violates the pass/fail mask.
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