R&S SMJ100A, Руководство по эксплуатации, Страница: 155 / 874

Instrument Function
R&S
®
SMJ100A
139 Operating Manual 1403.7458.32 ─ 14
The following tests are only available via remote control:
●
:TEST:CONNector:AUXio?
on page 802
●
:TEST<hw>:DIRect
on page 802
Execute Baseband Connection Selftest
Performs a connection test on each of the internal digital baseband links. This implies
all installed options as baseband inputs, motherboard, universal coding generators,
fading simulators, and baseband outputs.The result (succeeded or failed) is displayed
in the status field next to the "Execute Baseband Connection Selftest" button.
Remote command:
:TEST:BB:CONNection?
on page 801
BBOUT LVDS Rate
Sets the interface speed.
The "External LVDS Test" is used to check the correct data transmission of the digital
baseband outputs (BBOUT) and the correct data reception of the digital baseband
inputs (BBIN).
An external cable connection is needed to perform this test successfully. An output
must be connected to an input with the digital I/Q cable. Always an input/output pair is
tested together. The input and the output can be on the same instrument, or alterna-
tively on two different instruments. Given an arbitrary cable connection, the appropriate
Tx test can be activated with different interface speeds (LVDS rate).
On the connected input, this test sequence is received and can be compared with the
expected test signal.
Remote command:
:TEST<hw>:BBOut:LRATe
on page 801
Tx Test
Activates the transmission of a known pseudo-random sequence (On).
Remote command:
:TEST<hw>:BBOut:TTESt[:STATe]
on page 802
5.2.3.9 Check Front Panel
With the functions provided in this dialog you can verify the functionality of the control
keys of the R&S
SMJ.
General Instrument Settings