19
BERT (Bit Error Rate Test) Function
ڦ Measurement Start and Stop
Select the test mode, test pattern, and on/off of RTS-CTS flow control in
advance.
By pressing [RUN] it starts transmission of the specified test pattern and
compares the received data with the test pattern. Then it measures the bit error
rate etc. in compliance with ITU-T G.821 and displays them on the screen. It
stops measurement by [STOP].
Set the synchronization method (ASYNC or SYNC/BSC) and the communication speed at
the "protocol" and "speed" in the conguration. For the other items, only the data bit and
stop bit settings are valid for ASYNC, and only the clock settings is valid for SYNC/BSC.
Item Contents Range of measurement
Savail
Effective time since the rst syn-
chronization was established
0 ～ 9999999(sec)
Receive bit
Number of received bits during
synchronization establishment
0 ～ 9999999 ～ 9.99E9
Error bit Number of bit errors 0 ～ 9999999 ～ 9.99E9
Bit error rate Bit error rate 0.00E-0 ～ 9.99E-9
Sync loss Number of loss of synchronization 0 ～ 9999
Receive block
Number of received blocks during
synchronization establishment
0 ～ 9999999 ～ 9.99E9
Error block Number of blocks with bit errors 0 ～ 9999999 ～ 9.99E9
Block error rate
Block error rate 0.00E-0 ～ 9.99E-9
Error second
Time when bit error was detected
during Savail
0 ～ 9999
%E.F.S. Errored second rate (%) 0.000 ～100.000(%)
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