Viavi mA-1302, Operation Manual

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Appendix B Timing and Trigger Sources Signal Definitions
Clock Signal Definitions
Rev. D0 mA-1302/mA-1305 AXIe Chassis Operation Manual
May 2020 Page B-3
Clock Signal Definitions
Synchronization Signal Definitions
Table B-2 Clock Signals
Trigger Label Trigger Definition
GPS_DISCIPLINED The Chassis Internal Frequency Reference may be
frequency synchronized when an incoming GPS signal
is present on the Chassis GNSS Antenna Input
Connector.
INT_REF The Chassis Internal Frequency Reference is used as a
reference clock.
10/100 MHz EXT_REF The Frequency Reference Input Connector may use an
external 10 MHz or 100 MHz reference signal as a
reference clock input.
SYNCE
(Recovered Ethernet)
The Chassis Internal Frequency Reference may be
frequency synchronized when connected to an
appropriate IEEE 1588/802.1 or Sync E signal network.
10/100 MHz REF_OUT The External Reference Output Connector can be
switched between a 10 MHz or 100 MHz signal.
Table B-3
Synchronization Signals
Trigger Label Trigger Definition
CLK100 Internal Clock Reference which can be used to drive
Chassis synchronization for timing purposes.
SYNC_TRIG_OUT Trigger Output signal routed from the Trigger Routing
Matrix that can drive the Chassis Backplane
synchronization trigger.
SYNC_TRIG_IN Trigger Input signal routed from the Chassis Backplane
synchronization trigger to the Trigger Routing Matrix.