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Chapter 7 Test Results
E1 Results
Interface results
80
Table 11 Signal test results (Continued)
Result
Description
Ref Clk Frequency
Frequency of the reference clock
Rx Level Vpp
Current receive level, in volts peak-to-peak
Rx Level dBnom
Current receive level, in dB nominal
Code Errors
Number of detected violations of the selected encoding
method.
Code Error Rate
Ratio of code errors received to the total number of bits
received
Timing Slips
Number of bit slips (±) counted when the E1 test signal slips
from the E1 reference signal after both signals are present
simultaneously. Counts from 0 to + or - 255, and then rolls
over to 0. Resets to 0 if signal present is lost on the ana-
lyzed E1 circuit or on the reference E1 circuit. A positive
results indicates that the analyzed E1 circuit is faster than
the reference E1 circuit.
Frame Slips
Number of frame slips (absolute value) counted when the
E1 test signal slips from the E1 reference signal after both
signals are present simultaneously.
The Interface category lists results related to the physical interface.
describes the results that appear in the Interface category.
Table 12 Interface test results
Result
LOF Alarms
LOF Seconds
AIS Alarms
AIS Seconds
RDI Alarms
RDI Seconds
MF AIS Alarms
MF AIS Seconds
MF RDI Alarms
MF RDI Seconds
FAS BIT Errors
FAS BIT Error Rate
FAS Word Errors
MFAS Word Errors
SmartClass E1 Tester User's Guide
Description
Number of times the LOF condition was detected
Seconds in which loss of framing was detected
Number of alarm indication signals detected
Number of seconds in which AIS was detected
Number of Remote Defect Indication alarms
Number of seconds in which RDI was detected
Number of Multi Frame Alarm Indication Signals
detected
Number of seconds in which MF-AIS was detected
Number of Multi Frame Remote Defect Indication
alarms detected
Number of seconds in which MF-RDI was detected
Number of errored Frame Alignment Signal bits
detected
Ratio of errored FAS bits to the total number of FAS
bits received
Number of errored FAS words detected
Number of errored MFAS words received since initial
frame sync
Table 12
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