User guide

Chapter 7. Troubleshooting 295
factory.htm Resets all values to factory defaults.
dump.htm Shows all values.
SDSL Debug Commands
sdsl *
Displays all available SDSL commands.
sdsl btstat
Displays available status values.
Example:
# sdsl bts
Available status:
SLM ........................... Input Signal Level
DC_METER ...................... Input DC Offset
FELM .......................... Far-End Signal Attenuation (CalÕd
at 1168 Kbs)
NMR ........................... Noise Margin
TIMING_RECOVERY_CONTROL ....... Timing Recovery Control
STARTUP_STATUS ................ Bit-Pump Status
BIT_PUMP_PRESENT .............. Bit-Pump Present
SELF_TEST ..................... Self Test
REGISTER ...................... Read Register
CONFIGURATION ................. Big-Pump Configuration
STAGE_NUMBER .................. Stage Number
AAGC_VALUE .................... AAGC
READ_TX ....................... Read Tx Gain
BER_METER_STATUS .............. BER Meter Status
sdsl btstat *
Displays available SDSL status commands.
sdsl bts felm
Displays Far-End Signal Attenuation. It gives an estimate of the length of the loop.
Output example: SDSL: FELM: 63 [0x3f]
sdsl bts nmr
Displays noise margin. Large values are symptoms of a bad or excessively lengthy loop.
Output example: SDSL: NMR: 224 [0xe0]
sdsl states trace [<all>]
Turns on trace of line changes. To turn off the trace, append all to the command.
Example:
# sdsl states trace