Agilent Technologies N2620A User Manual
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N2620A User’s Guide
5
DSL Testing with the FrameScope Pro
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Tx Power: Transmit power (dBm)
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Gross Rate: Actual data rate (kbps)
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Latency: Latency path
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Max Rate: Maximum data rate (kbps)
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The errors reported by CPE (VIT tester) and CO (DSLAM)
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CRC: Cyclic redundancy check
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FEC: Forward error correction
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HEC: Header error control
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LOS: Loss of signal
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NCD: No cell delineation
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LCD: Loss of cell delineation
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ADSL Status Messages:
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Idle: Transceiver is initialized but idle
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Quiet: Awaiting activation request from ATU-R
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Diagnostic Mode
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Ready: Standby
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Fail: Fail due to error
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Reset
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GHS: Handshake
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Full Initialization: Full training
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Short Initialization: Short training
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Retrain: Renegotiation
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Showtime: Active (synchronization is successful)
These parameters are refreshed every 10 seconds. The timing
for these updates is fixed and cannot be changed. The results of
these updates are logged into the report file. You can set how
often the results are logged to the report file, as shown in
“Setting up the report interval”
Press Stop to stop the test.