User`s manual

18
Diagnostics – EFB
Intermittent Off-line Occurrences
The problems described above are the most common problems encountered with
ACH550 serial communication. Intermittent problems might also be caused by:
• Marginally loose connections,
• Wear on wires caused by equipment vibrations,
• Insufficient grounding and shielding on both the devices and on the
communication cables.