Toshiba STRATA DK14 Installation And Maintenance Manual page 339

T1ERR
DTU NO = 1
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
DTU NO = 2
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
DTU NO = 3
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
DTU NO = 4
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
DTU NO = 5
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
DTU NO = 6
SYNCHRO BIT ERROR
BIPOLAR VIOLATION ERROR
SLIP ERROR
CRC ERROR
Figure 8-11 RDTU Performance Monitor Printout
The error categories are as follows:
o Synchro Bit Error: This counter increments each time the RDTU detects 1024 synchronization
bit errors.
o Bipolar Violation Error: This counter increments each time the RDTU detects 6.55 x 104
bipolar violations.
o Slip error: This counter increments each time the RDTU detect 256 slips.
o CRC Errors: Cyclical Redundancy Check counter increments each time the RDTU detects 256
CRC-6 errors. This is only available when the RDTU is in the Extended Super Frame mode.
Strata DK I&M 6/00
T1 ERROR DISPLAY
= XXXX TIMES (1 TIME = 1024 ERRORS)
= XXXX TIMES (1 TIME = 256 X 256 ERRORS)
= XXXX TIMES (1 TIME = 256 ERRORS)
= XXXX TIMES (1 TIME = 256 ERRORS)
= XXXX TIMES (XXXX = 0~9999)
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
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= XXXX TIMES
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= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
= XXXX TIMES
T1
Performance Monitoring
8-17