Chapter 11 Troubleshooting
128 BMTX-SVN01C-EN
• UCM addresses reset incorrectly after UCMs have been serviced or
replaced
• AC-power disturbances (lightning, welding, etc.) that enter the UCM
communication link wiring and are strong enough to damage the
UCM communication link and/or connected UCMs
• Failures of the termination board and/or the main circuit board
• Programming changes at the Tracer Summit PC Workstation that
alter the site configuration or UCM objects.