IBM 3745 Problem Determination Manual page 308

o
o·
o
o
o
Line Problem (HSS)
OTR
is OFF:
Perform a tailgate wrap test (see Chapter 16). Then return here to analyze the
results.
Tailgate Wrap Test Results - - - - - - - - - . - : . . - - - - - - - - - - - - - - - - - - - ,
• Test not successful:
ra
• Test successful: CheCK the network status with the network operator. If it is operational,
suspect the host software.
OTR is
ON
and DSR is
OFF
• Check that the DCE is ready and operational.
• Check that the cables are correctly plugged in.
• Perform a tailgate wrap test (see Chapter 16). Then return here to analyze the results.
Tailgate Wrap Test Results - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ,
• Test not successful:
ra
• Test successful, check:
DCE
DCE cable.
OTR and DSR are
ON
Perform a tailgate wrap test (see Chapter 16). Then return here to analyze
the results.
Tailgate Wrap Test Results - - - - - - - - - - - - - - - " - - - - - - - - - - - - - - - - ,
• Test not successful:
ra
• Test successful: Perform a data wrap test at the 3745 modem level (see Chapter 16). Then
return here to analyze the results.
Modem Data Wrap Test Results - - - - - - - - - - - - - - - - - - - - - - - - - - - - ,
• Test not
successf~l:
Suspect the modem or the cable.
• Test successful, check:
The remote control unit. Perform 'appropriate remote'pontrol unit tests.
The network status with the network operator.
The network.
Chapter 10. line Problem (HSS)
10-5