Rohde & Schwarz ZNB20, User Manual

Page: 53 / 1332

Getting Started
R&S
®
ZNB/ZNBT
38 User Manual 1173.9163.02 ─ 38
Index Label Description
9 REF OUT BNC output for the internal reference frequency of the R&S ZNB. Use this connector
to synchronize other instruments to the analyzer.
See Chapter 5.19.3, "Remote Settings Tab" , on page 617.
10 REF IN BNC input for an external reference frequency. Use this connector to synchronize
the R&S
ZNB to another device.
11 (System
drive) Contains the removable system hard disk of the R&S ZNB, containing all software
(including the operating system and the VNA application) and data. No other hard
disk is built in. Do not remove the disk during operation.
Option R&S ZNB-B19 Var. 02 provides an additional removable HD with 32bit oper-
ating system and firmware for instruments with controller LPW10.
Option R&S ZNB-B19 Var. 07 provides an additional removable HD with 64bit oper-
ating system and firmware for instruments with controller LPW10.
Option R&S ZNB-B19 Var. 10 provides an additional removable HD with 64 bit oper-
ating system and firmware for instruments with controller LPW11 (currently
R&S
ZNB40 variants 82 and 84 only).
12 (Ground
connector) The ground connector provides the ground of the analyzer's supply voltage. Use this
connector for ESD protection; see
"Risk of electrostatic discharge" on page 16.
Table 3-2: 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:
●
R&S ZNB-B1, "Bias Tees", providing two or four additional BNC inputs labeled
BIAS 1 ... 4 (for two-port or four-port analyzers). The inputs can be used to
apply an external DC voltage (bias) to the test ports. For fuse replacement refer
to
Chapter 10.3.3, "Replacing Fuses" , on page 1269.
●
R&S ZN-B15 "RFFE - GPIO Interface", providing 2 independent RF Front-End
(RFFE) interfaces according to the MIPI® Alliance "System Power Management
Interface Specification" and 10 General Purpose Input/Output (GPIO) pins on a
single 25 pin female connector
14 Device
Control Option R&S ZNB-B12 "Device Control" provides a PCIe and a Direct Control con-
nector.
See Chapter 4.7.10, "Device Control" , on page 213.
The Direct Control interface allows to establish a direct connection between the VNA
measurement bus and one or more extension devices, such as an external RFFE
GPIO interface R&S
ZN-Z15 or switch matrices R&S ZN-Z8x.
15 Handler
I/O Option R&S ZN-B14, Handler I/O (Universal Interface), providing a Centronics 36
input/output connector.
See Chapter 4.7.11, "Handler I/O (Universal Interface)" , on page 214.
16 GPIB Option R&S ZNB-B10 provides a GPIB bus connector according to standard IEEE
488 / IEC 625.
See Chapter 10.2.3, "GPIB Interface" , on page 1254.
17 DC INPUT Option R&S ZNB-B81"DC Inputs" provides four BNC inputs for DC measurements
(adjustable to different voltage ranges).
See Chapter 5.9.11, "DC Tab" , on page 466.
Instrument Tour