Chapter 7 Test Results
E1 Results
SmartClass E1 Tester User’s Guide 79
Statistics results
Results in the Statistics results category are designated as “History” or real
time (current). Restarting the test will clear the History Statistics results.
Table 10 describes the Statistics results.
Signal results
The Signal category shows signal level, frequency, and loss seconds results.
Results in this category accumulate after test restart. Table 11 describes the
results that appear in the Signal category.
Table 10 Statistics results
Result Description
LOS Loss of Signal
LOS History Loss of Signal since the last test restart
LOF Loss of Framing detected
LOF History Loss of Framing detected since the last test restart
LSS Loss of Sequence Synchronization
LSS History Loss of Sequence Synchronization since the last test restart
FAS Sync Frame Alignment Signal synchronized
FAS Sync History Frame Alignment Signal synchronized since the last test
restart
MFAS Sync Multiframe Alignment Signal synchronized
MFAS Sync His-
tory
Multiframe Alignment Signal synchronized since the last
test restart
CRC Sync Cyclic Redundancy Check synchronized
CRC Sync History Cyclic Redundancy Check synchronized since the last test
restart
AIS Alarm Indication Signal detected
AIS History Alarm Indication Signal detected since the last test restart
RDI Remote Defect Indicator detected
RDI History Remote Defect Indicator detected since the last test restart
MF AIS Multiframe AIS detected
MF AIS History Multiframe AIS detected since the last test restart
MF RDI Multiframe RDI detected
MF RDI History Multiframe RDI detected since the last test restart
Table 11 Signal test results
Result Description
LOS Alarms Number of Loss of Signal alarms
LOS Seconds Number of seconds in which LOS was detected
Rx Frequency Frequency of the clock recovered from the received E1
circuit
Rx Freq Dev PPM Current received frequency deviation, ± 200 ppm
Rx Freq Max Dev Maximum received frequency deviation, ± 200 ppm
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