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Black Box MWU2000-X21 User Manual

Page 80

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80

2.048Mbps Wireless Modem

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Message:

WARNING:

Delay

setting

may

be

too

short

to

correct

all errors


Description: The selected delay setting might be too short to allow the ARQ to correct the

bursts of radio errors present. Correction: Increase the delay setting or identify
and eliminate the cause of the bursts by using the tracers.


General Alarms

Message:

WARNING: LIU Clock drift, Check clock configuration


Description: In E1/T1 configuration, failure to set the clock source of the end equipment

connected to the slave unit to loop-back mode.


Correction: Check the clock configuration.


Message:

WARNING: LIU Clock frequency differs from set value

Description: Indicates a clock rate different from the one specified in a V.35/RS-530/X.21

unit configured as DCE EXTERNAL CLOCK or as DTE.


Correction: Correct clock frequency to set value.


Message:

WARNING: DPLL is noisy due to bad link conditions or
noisy input clock


Description: Indicates that bad link conditions prevent the slave unit from synthesizing a

stable LIU clock.


Correction:
Check the link and the clock.


Message:

WARNING:

Too

many

links

to

synchronize,

Reduce

requested number

Description: The specified number of links to synchronize is too high for the selected

hopping standard.


Correction: Reduce the number of links to synchronize.

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