Control Panels for X75 Systems Installation and Operation Manual 55
Chapter 3: Status and Alarm LEDs
EDH Status LED
The EDH LED indicates the current configuration and status of Error
Detection Handling (EDH) in the input standard serial digital video
stream. The EDH LED receives SD-SDI 1 and SD-SDI 2 inputs for
status reporting.
TBC Status LED
The TBC LED indicates whether or not the composite input signal is
timebase-corrected by the unit’s TBC circuitry.
Table 3-2. EDH LED Status Definitions
LED Status Operating Condition
On The EDH feature is monitoring incoming video from both
SD-SDI inputs.
Off The EDH feature is turned off.
Flashing EDH detection is enabled and EDH errors have been
detected, or the incoming SDI feed does not include EDH.
For an EDH error count and other related information,
follow this path:
Video Setup > SD1 or SD2 Input > EDH.
Table 3-3. TBC LED Definitions
LED Status Operating Condition
On The internal time base corrector is operating and
correcting the input signal, usually for heterodyned signals
from sources such as a VTR.
Off The internal time base corrector is not active (the unit may
be in Sync mode).
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