Chapter 16
Performing RFoCPRI Testing
JD700B Series User’s Guide
555
Figure 339 Connection diagram for Layer-2 BERT testing mode
With nTap:
Without nTap:
Selecting measurement mode
Procedure
1
Press the
MEASURE
hot key.
2
Select
Layer 2 BERT
.
Selecting port
JD700B series supports two antenna ports for signal transmission, and each port can generate up to four
different waveforms selectively and simultaneously. User can select the port to use for the measurement in
any measurement modes of RFoCPRI mode.
Procedure
1
In any measurement mode, press the
MEASURE SETUP
hot key.
2
Toggle the
Select Port
soft key between
Port 1
and
Port 2
to select the desired port.
Setting measure setup
You need to set the measure setup before staring the measurement.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
To set the CPRI line bit rate of the fronthaul under test, complete the following steps:
Press the
Link Rate
soft key.
Select the CPRI link rate option from:
614.4 Mbps
,
1228.8 Mbps
,
2457.6 Mbps
,
3072.0 Mbps
,
4915.2 Mbps
,
6144.0 Mbps
, or
9830.4 Mbps
or select
Auto
if you want to
detect the link rate automatically.
NOTE
It is important that you set the link rate correctly to avoid any misleading LOS and LOF
alarms displayed on the screen.
3
Toggle the
Tx Clock
soft key to
Recovered
(default).
4
Toggle the
Port Type
soft key and select
Slave
(default).
5
To turn on the through mode, go to
More (1/2) > Thru
, and then toggle the
Thru
soft key to
On
.
To turn off, toggle to
Off
.
6
To configure Rx parameters, see “Configuring Rx Parameters” on page 587.
