Teledyne LeCroy PeRT3 Eagle Systems - Manual (Page 39)

PeRT 3 Eagle User Manual Version 1.6
LeCroy Corporation
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If no board is detected (either because none is present or because in some older systems
the hardware doesn't support automatic detection) then the Ext OOB Board box will not
be checked, but the user will be allowed to check or uncheck it to indicate the presence
or absence of the board. If the board is connected it is vital that this box be checked,
otherwise signal amplitude and OOB signaling will not function properly.
The Ref Clk in allows the user to provide an external clock for the system and specify
the nominal frequency of this clock signal, which is supplied via the Reference Clock In
connector on the back panel of the system.
External Jitter
The External Jitter panel is used in combination with
the Jitter In connector on the front panel of the PeRT
3
Eagle system. This allows the user to introduce
other sources of jitter, and to control how those
additional jitter sources are applied to each channel.
The Main control acts as a master amplitude control
in applying the external jitter across all channels.
The individual channel controls allow the user to
selectively apply the external jitter to specific
channels.
Clock Out
The Clock Out panel controls the Clock Out signal which can be used to
control external equipment. These controls allow the user to introduce a
delay of 0 to 100 ps, and to introduce a jitter of 0 to 6 ps into the clock
signal.
Diagnostics
The Diagnostics panel allows the user to test the operation of system
components, including the digital electronics ("Eagle R-6"), the analog
front end ("Eagle FE-6"), and correct connectivity between the two
sections. The results of the diagnostics tests are displayed in the
Output window.