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Welcome to the R&S EX-IQ-BOX...
R&S
®
EX-IQ-BOX
11
User Manual 1409.5570.32 ─ 05
2 Welcome to the R&S EX-IQ-BOX...
...the Digital Interface Module
While in the past the transmission of the analog I/Q signals had played an important role,
nowadays it is the digital I/Q signals that are significant. The utilization of digital I/Q signals
leads to the employment of different transmission protocols and still involves the devel-
opment of different interface types with a great variety of physical characteristics.
The R&S
EX-IQ-BOX, as a configurable interface module, is designed to solve this prob-
lem. The main application field of this device is the conversion of signal properties and
transmission protocols of the R&S instruments into User Defined or standardized signal
formats and vice versa.
To digitally transmit I/Q signals, R&S instruments like signal generators, signal analyzers,
communication testers and the R&S
EX-IQ-BOX communicate with each other, using an
R&S wide standardized transmission protocol, which is based on
LVDS
(
L
ow
V
oltage
D
ifferential
S
ignaling).
For applications with
User Defined protocols
the R&S
EX-IQ-BOX enables either serial
or parallel transmission of I/Q signals to a DUT, including variable clock modes, various
data rates as well as different logical signal levels.
In applications with
standardized protocols
the R&S
EX-IQ-BOX not only provides the
I/Q data, but also the control information of the respective standard. Equipped with the
respective options, the R&S
EX-IQ-BOX supports the standardized protocol
CPRI
(
C
ommon
P
acket
R
adio
I
nterface). This protocol defines a combined interface for the
transmission of I/Q and control data between the baseband and RF module of a base
station.
The R&S
EX-IQ-BOX is directly connected to the digital interface of an R&S instrument
by using an LVDS cable. For connection to the DUT, various interchangeable adapters
are available, so called
breakout boards
. Breakout boards adapt the signals physically.
A breakout board is directly connected to the user interface on the front panel of the
R&S
EX-IQ-BOX.
●
For
User Defined applications
, two different breakout boards are provided with the
R&S
EX-IQ-BOX, supporting single ended and differential signals.
●
For
CPRI
applications, separate options support the respective signal formats.
The R&S
EX-IQ-BOX is controlled via the USB interface. It is operated from a PC by
using the configuration software
R&S
DigIConf
.
Test setups of the R&S
EX-IQ-BOX
1409.5505.02
with instruments of the R&S SMU or
R&S FSQ families provide control of the R&S
EX-IQ-BOX without using the digital inter-
face configuration software R&S
DigIConf. But this constellation applies only to
User
Defined
applications.
Due to the enhanced capabilities of the
R&S
EX-IQ-BOX 1409.5505K04
, this model is
exclusively controlled by R&S
DigIConf and applies to all applications.
Summary of Contents for EX-IQ-BOX
Page 147: ...Protocol Settings R S EX IQ BOX 132 User Manual 1409 5570 32 05 CPRI...
Page 391: ......