Viavi CellAdvisor JD700B Series, Руководство пользователя

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Chapter 18 Perfroming BBU Emulation
672
JD700B Series User’s Guide
6144 Mbps .
NOTE
It is important that you set the link rate correctly to avoid any misleading LOS and LOF
alarms displayed on the screen.
If you select
6144 Mbps , the Scrambler Seed soft key becomes active in the OBSAI
Parameters menu so that you can specify a scrambler seed.
4
To turn on the through mode if you have not used a tap, toggle the Thru soft key and select On .
To turn it off, select Off .
5
Press the OBSAI Parameters soft key, and then do the following:
To specify Rx RP3 Type and RP3 Address of the received message for link rates
768 Mbps , 1536 Mbps , and 3072 Mbps , complete the following steps:
Select More (1/2) > Rx Address List .
The Rx Address List box appears. JD700B series lists all Rx messages detected by the
instrument with RP3 Address and RP3 Type values.
From the list, select the message to monitor.
Tap the Apply button.
The instrument automatically sets the RP3 Address and RP3 Type with the selected
values.
NOTE
You can also manually specify the RP3 Address and RP3 Type for the received message
using the
Rx RP3 Type and Rx RP3 Address soft keys.
If you have selected a WCDMA/FDD message, toggle the WCDMA Link soft key and
select the link direction between FWD for forward (downlink) and REV for reverse
(uplink).
To specify Rx RP3 Type and RP3 Address of the received message for link rate 6144 Mbps ,
complete the following steps:
Select More (1/2) > Rx Address Valid List .
The Rx Address List box appears. Unlike the Rx Address List, the Rx Address Valid
List feature shows only the messages that contain scrambling code seed values.
From the list, select the message to monitor.
Tap the Apply button.
The instrument automatically sets the RP3 Address, RP3 Type, and Scrambler Seed
with the selected values.
NOTE
You can also manually specify the RP3 Address, RP3 Type, and Scrambler Seed for the
received message using the
Rx RP3 Type , Rx RP3 Address , and Scrambler Seed soft
keys.
If you have selected a WCDMA/FDD message, toggle the WCDMA Link soft key and
select the link direction between FWD for forward (downlink) and REV for reverse
(uplink).
To set the port type and transmission clock reference, complete the following steps:
Toggle the Port Type soft key to Slave (default).
Press the Tx Clock soft key, and then select Recovered (default).
6
To set the bandwidth of the downlink signal, complete the following steps:
Press the Bandwidth soft key.
Select the bandwidth option from the choices: 5 MHz , 10 MHz , 15 MHz , or 20 MHz .
The RBW range changes based on this bandwidth setting.
7
Optional . To use the RF signal generator function, see “Using RF source in RFoOBSAI testing”
on page 694.