SMART Sympodium IM-150, Руководство по установке, Страница: 16 / 63

8 Sympodium IM-150 Installation Guide
RS-232 Data
A supplied 6' (1.8 m) RS-232 serial cable (DB9F/DB9M) connects the console’s pen tool
selector board to the X-Port 30 unit. You’ll find the console’s RS-232 port on the underside of
the console.
If you want to place the X-Port 30 unit and the console farther apart than the supplied cable
allows, use an RS-232 serial-extension cable to connect them. However, the total cable length
should not exceed 50'
(15 m) .
Power Supply
The console’s power supply connects to the AC or MAINS input on the console’s underside,
which connects internally to the pen tool selector board port. The power supply connects to
the wall outlet using a supplied 20'
(6 m) power cable. This 18V DC power supply, which is
smaller than that of the X-Port 30 unit, has an LED indicator that glows green when it detects
AC power input.
Input Source Signal Information
Different input devices, such as document cameras, VCRs and DVD players, may produce
different types of signals, including:
•
RGB or RGBHV (using HD DB15 connectors)
NOTE: For the purposes of this manual, RGB and RGBHV are considered the same.
•
composite (using RCA connectors)
•
S-video (using mini-DIN4 connectors)
•
component (using RCA or BNC connectors)
The X-Port 30 unit only accepts an RGBHV video signal , which is an RGB signal that also
contains horizontal and vertical information. If your input source transmits a video signal other
than RGBHV, you’ll need to scale the signal to an RGB format using a video scaler. Most
VCRs and DVD players don’t produce RGBHV video signals.
Video scalers generate a number of different output formats. Some scalers convert the signal
to RGB with horizontal (H) and vertical (V) scan rates that match the input rate exactly. Other
scalers have selectable output resolutions. Determine the type of signal output the scaler has
available, and then select the signal that delivers the best quality. For video images,
component output produces a better image than S-video, which in turn produces a better
image than composite video. However, keep in mind that you can only connect HD DB15
connectors to the X-Port 30 unit.
NOTE: While document cameras usually have S-video outputs, some models may also have
RGBHV (HD DB15) interfaces. You can connect those devices directly to the X-Port 30 unit,
so you won’t need a scaler in your integration.
When you select a scaler to use with your integration, make sure the output resolution is
compatible with both the interactive screen and any connected external projectors.
NOTE: The maximum signal frequency for the horizontal refresh rate is 75 Hz. Exceeding that
frequency may damage the screen, or the image won’t display as expected.
TAKE NOTE