Getting Started
R&S
®
ZNB/ZNBT
40
User Manual 1173.9163.02 ─ 53
Numbered test port connectors:
●
Type N female connectors for the R&S
ZNBT8. Depending on the equipped port
options there are 4, 8, 12, 16, 20 or 24 test ports.
●
3.5 mm male connectors for the R&S
ZNBT20. Depending on the equipped port
options there are 8, 12, 16, 20 or 24 test ports.
●
2.92 mm (K) male connectors for the R&S
ZNBT26 and R&S
ZNBT40. Depending
on the equipped port options there are 8, 12, 16, 20 or 24 test ports.
The test ports serve as outputs for the RF stimulus signal and as inputs for the mea-
sured RF signals from the DUT (response signals). With a single test port, it is possible
to generate a stimulus signal and measure the response signal in reflection. For a
measurement example, refer to
Chapter 4.4.2, "Reflection S-Parameter Measure-
on page 78. With more than one test port, it is possible to perform full two-
port, 3-port, ... , or n-port measurements; see
Maximum input levels
The maximum input levels at all test ports according to the front panel labeling or the
data sheet must not be exceeded.
In addition, the maximum input voltages of the other input connectors at the rear panel
must not be exceeded.
It is recommended that you use a torque wrench when screwing RF cables on the test
port connectors.
Connector usage
Two LEDs next to each test port indicate the connector usage:
●
on: connector is used as a source port
●
on: connector is used as a receive port
●
both LEDs on: connector is used as a bidirectional (source and receive) port
4.2.2.2
Administrative Area
Mini display
A miniature display is provided in the upper right-hand corner of the front panel to pro-
vide the following instrument information:
●
IP address
●
Operational "Status" or "Error <error code>"
–
"OK": no error
–
Info: general errors (e.g. related to external devices or remote control)
Instrument Tour
