Agilent-technologies N2620A Manual de usuario Pagina 148

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130 N2620A User’s Guide
5 DSL Testing with the FrameScope Pro
Tx Power: Transmit power (dBm)
Gross Rate: Actual data rate (kbps)
Latency: Latency path
Max Rate: Maximum data rate (kbps)
The errors reported by CPE (VIT tester) and CO (DSLAM)
CRC: Cyclic redundancy check
FEC: Forward error correction
HEC: Header error control
LOS: Loss of signal
NCD: No cell delineation
LCD: Loss of cell delineation
ADSL Status Messages:
Idle: Transceiver is initialized but idle
Quiet: Awaiting activation request from ATU-R
Diagnostic Mode
Ready: Standby
Fail: Fail due to error
Reset
GHS: Handshake
Full Initialization: Full training
Short Initialization: Short training
Retrain: Renegotiation
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” on page 135.
Press Stop to stop the test.
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