R&S ZNB Series User Manual

Getting started
R&S
®
ZNB/ZNBT
49User Manual 1173.9163.02 ─ 62
Table 3-3: Optional rear panel connectors
Index Label Description
13 Bias Tees
or
RFFE -
GPIO
Interface
This slot can be equipped with one of the following options:
●
"Bias Tees", providing two or four additional BNC inputs labeled PORT BIAS
1 ... 4 (for two-port or four-port analyzers). The inputs can be used to apply
external DC voltages (biases) to the test ports.
– Not available for 2nd generation R&S ZNB20 and for 1st generation
R&S ZNB40 that are equipped with the new reflectometer board (order no.
1317.8015.03)
– Optional for R&S ZNB4|8
– Always equipped for other R&S ZNB models
See Chapter 4.7.13, "Bias tees (R&S ZNB only)", on page 254.
Note that there is no additional HW or SW switch for the bias tees, i.e. the volt-
age is applied to the RF port as soon as you connect the voltage source to the
corresponding PORT BIAS connector.
For fuse replacement, refer to Chapter 11.1, "Replacing fuses", on page 1535.
●
R&S ZN-B15 "RFFE - GPIO Interface" (1st generation R&S ZNB only)
25-pin female connector, providing:
– 2 independent RF Front-End (RFFE) interfaces according to the MIPI® Alli-
ance "System Power Management Interface Specification".
– 10 General Purpose Input/Output (GPIO) pins.
See Chapter 4.7.19, "RFFE GPIO interface", on page 257.
14 Device
Control
Option R&S ZNB-B12 "Device Control" provides a PCIe and a Direct Control con-
nector.
See Chapter 4.7.17, "Device control", on page 256.
The Direct Control interface enables direct connections between the VNA measure-
ment bus and one or more extension devices, such as:
●
An external RFFE GPIO interface R&S ZN-Z15.
See Chapter 4.7.19, "RFFE GPIO interface", on page 257.
●
Switch matrices R&S ZN-Z8x.
●
Multiport calibration units R&S ZN-Z154.
15 Handler
I/O
Option R&S ZN-B14, Handler I/O (Universal Interface), providing a Centronics 36
input/output connector.
See Chapter 4.7.18, "Handler I/O (universal interface)", on page 256.
16 GPIB Option R&S ZNB-B10 provides a GPIB bus connector according to standard IEEE
488 / IEC 625.
See Chapter 12.3.3, "GPIB interface", on page 1541.
17 DC INPUT Option R&S ZNB-B81"DC Inputs" provides four BNC inputs for DC measurements
(adjustable to different voltage ranges).
See Chapter 5.2.11, "DC tab", on page 314.
Match signals with 50 Ω to comply with EMC directives. See also Chapter 3.1.5, "Con-
siderations for test setup", on page 26.
3.2.4 Rear panel R&S ZNBT
This section gives an overview of the rear panel controls and connectors of the
R&S ZNBT.
Instrument tour

R&S ZNB Series Specifications

General

Brand	R&S
Model	ZNB Series
Category	Measuring Instruments
Language	English