EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 143)

Summary Tabs
SONET/SDH Application 129
Test Summary
Clock Configuration
Note: Clock Mode is only available when the test is not started. External and
Backplane clock modes are not available with the OTU1e, OTU2e, OTU1f,
and OTU2f interfaces.
Clock Mode allows the clock source selection that will be used for the test.
Internal: Internal clock of the unit (STRATUM 3).
External: Clock from the connected DS1/E1/2M external clock signal
(AUX-BNC port). Refer to Clock Synchronization - RX on page 522 to
complete the external clock settings.
Recovered: Clock from the test optical/electrical port input signal.
Recovered is the only choice available when the Test Mode is set to
Through mode.
Backplane: 8 kHz clock from another test module on the IQS-600. Note
that the other module must support the backplane clock feature and
must be enabled (refer to Backplane on page 526 for more
information). Only one module should have its backplane clock
enabled to avoid a LOC.
Alarm Analysis
LOC indicates that the IQS-8100 Series is unable to synchronize with the
selected test clock.
Test Preferences
Allows the configuration of the Background Traffic, STS-1 Fixed Stuff
Column, and OC-192/STM-64 REI-L/MS-REI parameters. Refer to Default
Test Preferences on page 530 for the description of each parameter.