
Section 6
♦
Alarm Descriptions
94
CMN-41 Series Installation and Operation Handbook
Copyright © 2009, Harris Corporation
Table 6-4. Time Code Alarms Setup Menu
NOTE
: Descriptions for these selection options start on page 96.
Selection Option
Selection Option
Selection Option
LTC/DVITC Compare
Enable
Threshold
1 * to 30 frames
Duration
0 to 600 seconds (240 seconds *)
DVITC Loss of Time Code
Enable
Duration
0 to 600 seconds (240 seconds *)
D-VITC Line
Enable
Line Number – 525/59.94
Line 10 to Line 30 (Line 14 *)
Line 625 – 625/50
Line 6 to Line 30 lines (Line 14 *)
Duration
0 to 600 seconds (240 seconds *)
D-VITC Continuity
D-VITC CRC
Enable
Duration
0 to 600 seconds (240 seconds *)
Table 6-5. GPI Alarms Setup Menu
NOTE
: Descriptions for these selection options start on page 97.
Selection Option
GPI 1 Alarm Enable *
GPI 2 Alarm Enable *
GPI 3 Alarm Enable *
GPI 4 Alarm Enable *
Video Alarms Setup Descriptions
The Video Alarms Setup menu contents are listed below.
•
Format Change
: The Format Change alarm is used to indicate that the incoming
video format has changed.
•
Payload ID Mismatch
: The Payload Identifier Mismatch alarm is used to indicate
that the payload indicated in a SMPTE 352M ancillary data packet does not match
the detected input format such as HD/SD and frame rate.
•
Loss of Carrier
: The Loss of Carrier alarm occurs when there is no Timing
Reference Signal (TRS) detected.
•
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. (For
more information necessary to select the appropriate external reference, see page
82.)
•
Loss of Active Video
: The Loss of Active Video occurs when active video falls
below the adjustable threshold for a period in excess of the duration setting.
•
Loss of Payload ID
: The Loss of Payload ID alarm is used to indicate when the
SMPTE 352M Video Payload ID ancillary data packet is not detected in the
received data stream for a period in excess of the duration setting.