
Chapter 7. Test Menu
The
BOARD LEVEL TESTS Each of the TSU 120 boards contain an
• RAM tests; EPROM checksum
• DS0 map tests
•
UNIT LEVEL TESTS • Front panel LED verification
• Phase Lock Loop verify
•
A test pattern is sent from the controller through a loopback on all other boards and is checked on the controller. This verifies the data path, clocks, and control signals.
If a failure is detected, note the failure number and contact
ADTRAN Technical Support.
Executing the
Port Tests
The Port Tests menu is used to activate testing of specific data ports. It controls the activation of loopbacks and the initiation of data test patterns. Test results are displayed in the LCD win- dow.
Port tests execution will disrupt normal data flow in the port be- ing tested.
TSU 120 User Manual |