User`s manual

VPort 2141 Video Encoder User’s Manual Accessing the VPort 2141
3-5
ATTENTION
Half × 2 consumes the same file size and bandwidth as Half, but has the same resolution as
Standard. For this reason, the visual effect of Half × 2 is worse than Standard. Likewise,
Standard × 2 consumes the same file size and bandwidth as Standard, but has the same
resolution as Double. For this reason, the visual effect of Standard × 2 is worse than Double.
Camera View selection
A maximum of 4 cameras can be connected to the VPort 2141 at the same time. Users can view
the image of each camera by selecting Video 1, Video 2, Video 3, or Video 4, or selecting Video
All to view all images in Quad screen.
ATTENTION
In Quad viewing mode, in order to fit the monitor screen the maximum image size is only 352 x
240 (NTSC) or 352 x 288 (PAL) for each camera.
System Configuration
When logged in as administrator, a button or text link will show up on the left side of the system
configuration window on main page. For detailed system configuration instructions, refer to
Chapter 4, System Configuration.
Taking Snapshots
Users can take snapshot images for storing, printing, or editing by clicking the Snapshot button,
and then saving the image by clicking the right mouse button.
Relay Output Control
The VPort 2141 has 4 digital inputs and 4 relay outputs for external devices, such as sensors and
alarms. If external devices are attached to the digital output, administrators or permitted users can
click on Open to short the Common and Normal Open pins of the digital output, or click on
Close to short the Common and Normal Close pins of the digital output.
Motorized (PTZ) Camera Control
If a serial device, such as a motorized camera, is attached and correctly configured to the COM
port, the control panel will appear on the permitted users’ main page. The effective buttons will
change color when the cursor is passed over the button. Users can control the pan, tilt, zoom, and
focus functions of motorized cameras. The home button is used to return the camera to the center
position if the camera supports this command. Apart from near and far control for focus, an AUTO
button is provided for setting auto focus mode. To move the motorized camera more precisely, the
speed control for pan and tilt allows users to fine tune the aiming position. Users can also click
directly on any point in the image to force the motorized camera to focus on that point, or select a
preset location from the drop-down list. The list of preset locations is pre-defined by
administrators. The detailed configurations are described in the related section in Chapter 4,
System Configuration.