Alarm Descriptions
196 TVM Series Installation and Operation Handbook
Copyright © 2008, Harris Corporation
Video Alarms Analog Descriptions
The Video Alarms Analog menu contents are listed below.
Loss of Signal
The Loss of Signal alarm occurs when no sync signal is detected for a period in excess
of the duration setting.
Loss of Reference
The Loss of reference alarm occurs when no sync signal is detected in the external
reference for a period in excess of the duration setting. To select the appropriate
external reference see Reference Selection on page 85.
Loss of Video
The Loss of Video occurs when active video falls below the adjustable threshold for a
period in excess of the duration setting.
Analog Gamut
Peak Upper
The Peak Upper alarm occurs when active video falls outside the upper limit for a
period in excess of the duration setting. Peak video includes luminance and/or
chrominance.
Peak Lower
The Peak Lower alarm occurs when active video falls outside the lower limit for a
period in excess of the duration setting. Peak video includes luminance and/or
chrominance.
Luma Upper
The Luma Upper alarm occurs when the luminance portion of the active picture falls
outside the upper limit for a period in excess of the duration setting.
Luma Lower
The Luma Lower alarm occurs when the luminance portion of the active picture falls
outside the lower limit for a period in excess of the duration setting.
Sync and Burst
H (Horizontal) Sync Upper
The H Sync Upper alarm occurs when the horizontal sync pulse falls outside the upper
limit for a period in excess of the duration setting.
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