Analyzing The Captured Data - ZyXEL Communications Omni TA128 User Manual

Chapter 15 - Diagnostics and Protocol Analyzer
The following commands determine the kind of protocol data to be captured by the EPA:
AT Command
ATCDn
n=0
n=1
ATCBn
n=0
n=1
ATCCn
n=0
n=1
The EPA starts to capture data when the command ATCT is issued. This capturing
process will continue until the command ATC$ is issued. The EPA maintains 8 Kbytes
RAM as a ring buffer. In case the buffer is full, the earliest data captured will be
overwritten by the latest data.

Analyzing the Captured Data

To view the analyzed result, use the command ATC$. For your convenience, the relevant
AT commands are summarized as follows:
AT Command
ATCT
ATC$
The analyzed results can be viewed as if it were in a full screen editor. Several number
keys are used to control the display. For PC users, it is convenient to use the keys on the
numeric keypad (make sure that Num-Lock is on.).
The functions of the control keys follow:
Key Function
1 End
2 Cursor down
3 Page down
7 Home
8 Cursor up
9 Page up
Q, q Quit
Any other key will pop up this control menu.
Description
Disable the capture of D channel protocols
Enable the capture of D channel protocols (default)
Disable the capture of B channel protocols (default)
Enable the capture of B channel protocols
Disable the capture of DTE-DCE interface protocols (default)
Enable the capture of DTE-DCE interface protocols
Description
Clears buffer and starts the embedded protocol analyzer.
Captures data immediately and starts the timer.
Invokes the interpretation function of the embedded
protocol analyzer and displays the results on the DTE
screen.
Description
Display to the end of buffer
Scroll one line up
Display the next page
Display the first page
Scroll one line down
Display the previous page
Quit embedded protocol analyzer
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