MEGAPOWER 168 / AD2088 OPERATION AND PROGRAMMING REFERENCE GUIDE (8200-0170-01, REV. A)
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Adjusting Text Display Position
To adjust the home positioning of the selected text
overlay:
1. Select the monitor where you want to adjust the
text display home position.
2. Turn the keyswitch to the PROGRAM position
3. Enter 50, and then press F2 on the keyboard.
This enables the joystick for text positioning to
the "home" position.
4. Move the keyboard joystick to adjust the
positioning of the standard text overlay
5. When the overlay is positioned appropriately,
enter 51, and then press F2 on the keyboard.
This disables the joystick for text positioning.
6. Turn the keyswitch to the OPERATE position.
Detecting Camera Video Loss
The AD168 system has built-in video loss detection.
The video loss detection level set for a particular
camera is based on the lighting conditions that exist
where the camera is installed.
For example:
• A camera installed in a room that is brightly lit on
a 24-hour basis would have a video loss
detection level set to VIDEO HIGH or VIDEO
MED.
• A camera installed in a shadowy or dark area, or
an area where lighting conditions vary
considerably, would have a video loss detection
level set to VIDEO LOW.
Regardless of how the lighting conditions and video
signal vary, a sync signal should always be present
in a working camera. Setting the video loss
detection level for SYNC ONLY produces a video
loss message when the sync signal is absent. This
would occur if a camera is malfunctioning,
disconnected, or if the camera cable is cut.
To set the video loss detection mode:
1. Select or hold the desired camera on the monitor
under your keyboard control.
2. Turn the keyswitch to the PROGRAM position.
3. Enter one of the following F2 code combinations:
Table 7: Video Loss F2 codes
Code Function
100 - F2
Disables video loss detection for the
camera.
101 - F2
Enables sync loss detection (SYNC
ONLY) for the camera.
102 - F2
Enables sync and low picture content
loss detection (VIDEO LOW) for the
camera.
103 - F2
Enables sync and medium picture
content loss detection (VIDEO MED)
for the camera
104 - F2
Enables sync and high picture content
loss detection (VIDEO HIGH) for the
camera
105 - F2
Enables automatic video loss detection
for the camera.
106 - F2
Enables automatic video loss detection
for all system cameras.
108 - F2
Clears video loss settings for all
cameras
111 - F2
Print the current video loss detection
mode of the selected camera.
112 - F2
Prints the current video loss detection
mode of all system cameras.
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