Chapter 16
Performing RFoCPRI Testing
JD700B Series User’s Guide
557
Setting display
You can select the display option to view data in a different mode.
Procedure
1
Press the
TRACE/DISPLAY
hard key.
2
Select the display option from:
BERT
,
Counts
, or
L1 Inband
to see the result chart on the
screen.
NOTE
You can use the
LIMIT
hot key to analyze your measurements with the display line, multi-
segment line, and channel limit. See “Setting limit for interference analysis” on page 585
for more information.
Conducting layer 2 BERT test
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Activate the transmission by toggling the
Laser
soft key to
On
.
3
To measure BERT, select the
Mapping Mode
option from
Bulk
or
Channelized.
4
Return to the Measure Setup menu by pressing the
PREV
hard key.
5
Enter a
Delay Offset
value by using the numeric keys or the rotary knob.
6
To insert an alarm signal, complete the following steps:
Press the
Alarm/Error
soft key.
Press the
Alarm Type
soft key.
Select the alarm type option from:
R-LOS
,
R-LOF
,
RAI
, or
SDI
.
Start the insertion by toggling the
Alarm Insertion
soft key to
On
.
To stop inserting the alarm, toggle the
Alarm Insertion
soft key to
Off
.
7
To insert a code error signal, complete the following steps:
Toggle the
Error Type
soft key to
Code
.
Toggle the
Insert Type
soft key between
Single
and
Rate
, and then select the insert type
option you want.
Single:
It inserts an error once and then turns off the error insertion.
Rate:
It inserts an error according to the set error rate in the Error Rate menu.
If you have selected
Rate
in step
b
, press the
Error Rate
and then select the error rate
option from:
1E-3
,
1E-4
,
1E-5
,
1E-6
,
1E-7
,
1E-8
, or
1E-9
.
Start the insertion by toggling the
Error Insertion
soft key to
On
.
To start inserting the error, toggle the
Error Insertion
soft key to
On
.
To stop inserting the error, toggle the
Error Insertion
soft key to
Off
.
8
To insert a K30.7 error signal, complete the following steps:
Toggle the
Error Type
soft key to
K30.7
.
Start the insertion by toggling the
Error Insertion
soft key to
On
.
The K30.7 error signal is one time insertion. This setting changes back to
Off
after the
insertion.
9
To insert a bit error signal, complete the following steps:
Toggle the
Error Type
soft key to
Bit
.
Start the insertion by toggling the
Error Insertion
soft key to
On
.
To stop the insertion, toggle the
Error Insertion
soft key to
Off
.
10
Check the real time results on the screen.
11
To clear the previous event history and start a new testing, press the
MEASURE SETUP
hot key
and then the
Clear History
soft key.