Using the modem feature – StarTech.com CABCONS1716I User Manual

Page 47

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Instruction Manual

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The Performance section of the screen gives an indication of the quality of the video.
Changes/frame is the average number of tiles that change for each frame sampled by

the hardware. Flatness is an indication of what percentage of the screen contains tiles

that are comprised of only one color.
The Regrab Screen button in the Actions section causes the screen to be re-captured.

When making small changes to the video parameters, sometimes these changes are

not reflected in the displayed screen immediately, particularly if the noise filter is

enabled. Press this button to see the immediate effect of the changes.
Use the Show Diffs button to learn which parts of the screen are being sent over the

Internet. When you click this button, the screen is cleared to a medium grey color. All

blocks that are sent from that point on will show up on the screen as they are sent.

Click the button again to reset the screen to grey. To return to normal operation, click

the Regrab button. It is very easy to visually identify the effect noise has on signal

processing, using this feature.
The Auto Offset & Gain button in the Actions section invokes the automatic algorithm

for setting the video parameters. The algorithm requires the factory calibration test

pattern to be correctly displayed on the screen.

Using the Modem Feature

The Modem feature allows the CABCONS1716I to act as an Internet connection server

for increased security and flexibility in connecting with the host computer.
Unlike the TCP/IP connection used with the standard Web configuration and VNC

clients, the modem creates a one-to-one connection between the CABCONS1716I and

the computer you are using, bypassing the public Internet completely.
NOTE: This feature requires both an external modem (most standard connection

protocols are supported) and a dedicated phone line that can be connected to the

modem for external access. While it is possible to use the modem feature through

some PBX systems, this increases the complexity and reduces the performance of

the connection. For clarity, the instructions presented here assume that the modem

is connected to a typical POTS (Plain Old Telephone System) line that is not routed

through a phone management system or shared with other devices.
If you wish to use this feature through a PBX system, it may require some

experimentation and additional support from your telecom services provider, and is

not supported by StarTech.com.

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