Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 31 / 813

R&S
®
ZVA Front Panel Tour
1145.1090.62 1.7 E-1
Test Ports
N-connectors, numbered 1 to 4 (for four-port instruments). The test ports serve as outputs for the RF
stimulus signal and as inputs for the measured 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.
•
With 2, 3 or 4 test ports, it is possible to perform full two-port, 3-port or 4-port measurements; see
S-Parameters section in Chapter 3.
Attention!
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 front
and rear panel must not be exceeded.
The three LEDs above each test port indicate the connector state:
The amber LED is on while the connector is used as a source port.
The green LED is on while the connector is used as a bidirectional (source and receive) port.
The blue LED is on while the connector is used as a receive port.
USB Connector
Double Universal Serial Bus connector of type A (master USB), used to connect e.g a keyboard, mouse
or other pointing devices, a printer or an external storage device (USB stick, CD-ROM drive etc.).