Sunrise Global CM100 IP manual View Upstream Spectrum Measurements, Chapter, Viewing Files, Figure

Models: and CM500 IP CM100 IP CM250 IP

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VIEW UPSTREAM SPECTRUM MEASUREMENTS

Chapter 5

Viewing Files

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Ranging TFTP - Pass / Fail – Indicating whether the internal cable modem was able to download the TFTP file from the TFTP server.

Ranging Emulator - Pass / Fail – Indicating whether the internal cable modem was able to gain a second IP address which is routable through the DHCP process.

VIEW UPSTREAM SPECTRUM MEASUREMENTS

When the Uptstream Spectrum icon is in color, it means that the current file is an Upstream Spectrum test saved file that can be viewed and analyzed by clicking on the icon. When the icon is selected, the screen the Upstream Spectrum saved data is displayed (Figute 5-12).

There are two views of the Upstream Spectrum, one to measure signal levels, such as TDMA upstream cable modem signals with C/I (carrier to ingress ratio) and C/N (carrier to noise ratio) measurements; and a second to measure the level of ingress and noise against a tolerance limit. The user may select the view that is desired by clicking on the Upstream or the Ingress button in the view section of the display.

Upstream

Figure 5-12

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Sunrise Global CM100 IP, CM250 IP, and CM500 IP manual View Upstream Spectrum Measurements, Chapter, Viewing Files, Figure