DPX16m: Instructions for Basic Operation and Installation
Page 20
Advanced VCR Options
The Advanced VCR Options menu is intended for use by knowledgeable users. The programmable
settings in this menu must be properly set for correct performance of your DPX16m. Do not change
these settings unless it is necessary for your installation.
Selecting:
1.
Enters the “Edit Delay Table” menu for
customizing delays for your VCR. See
“Programming a Custom Delay Table”
on page 22.
2.
Toggles Camera Switch Input pulse polarity
between “Negative” and Positive”. The default
is “Negative”.
3.
Allows changing the number of fields output to
the VCR on each occurrence of the “Camera
Switch Input” pulse. The default is 2.
4.
Toggles the VCR Playback Discriminator
On/Off. The playback discriminator should be
left “On” unless you wish to view all recorded
frames of an alarm camera.
5.
Toggles VCR Video Format between “Field”
and “Frame” and the factory default is “Field”. The video format must be the same for
record and playback.
Camera Switch Input
For most applications, the VCR delay table setting will provide the simplest setup and operation for
multiplex recording. For advanced applications, such as time of day dependent VCR record speed
settings, an external signal can be used to control the DPX16m. The Camera Switch Input (also
referred to as a “head switch” input) allows the DPX16m to use an external signal from the VCR to
control multiplexing. The DPX16m can be set to use the Camera Switch Input signal through the
“VCR Format” selection (see “VCR Set Up” on page 10). When the Camera Switch Input signal is
used, the DPX16m will switch to the next camera on the falling (Negative) edge, or the rising (Positive)
edge of the signal based on the “Pulse Polarity” setting in the “Advanced VCR Options” menu. Note
that if the “Cam Sw Input” format is selected, a Camera Switch Input signal
must
be provided
to the DPX16m for proper VCR multiplexing to occur.
Advanced VCR Options
Record
1. Edit Delay Table . . .
Camera Switch Input
2. Pulse Polarity: Negative
3. Fields per pulse: 2
Playback
4. Discriminator: On
Record/Playback
5. Video Format: Field
Camera: Select
DISPLAY: Accept and Return
