EXFO Power Blazer 88000 Series, User Manual

Page: 165 / 803

Test Setup - Test Configurator, Timer, and System
Power Blazer
153
Clock
Clock Out indicates the status of the clock generated on the REF OUT port
as follows:

Green: a valid clock is generated.

Red: the clock is either not available (--) then not generated, or not
valid but generated.
Note:
The Ref Out clock port provides an eye diagram timing reference for 10G
and above optical devices. This clock is provided for basic assessment.
Formal qualification may require specialized external circuitry.
Backplane
Note:
Only supported on FTB-2 and FTB-2 Pro platforms when the Clock Mode is
set to External , Recovered , or Internal .
Backplane Clock
check box when selected (cleared by default) makes
available the source clock ( Clock Synchronization - Clock Mode ) to other
modules on the platform. Other modules on the platform need to set the
Clock Mode as Backplane to use this clock. The Backplane Clock should
be only enabled on one module on the same platform. The Backplane
clock cannot be shared between FTB- and FTBx- modules.
Backplane
indicates that the background clock is generated (green) or
disabled (gray).
LOC
on a red background indicates, when the backplane clock is enabled,
that the synchronization is not possible with the selected reference clock.