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Concepts and features

R&S

ZNB/ZNBT

258User Manual 1173.9163.02 ─ 62

Mounting the internal unit (1st generation R&S ZNB only)

The internal version R&S ZN-B15 of the RFFE-GPIO extension board uses the same

slot as the bias tees (see Chapter 4.7.13, "Bias tees (R&S ZNB only)", on page 254). If

bias tees are installed, you have to remove them first.

Risk of board and instrument damage

Please turn off the R&S ZNB before mounting an internal RFFE-GPIO extension

board R&S ZN-B15. A hot plug installation is not supported and can damage board

and instrument.

Current and voltage measurements (variants 03 only)

For test purposes, variants 03 of the R&S ZN-B15/-Z15 can apply constant, pin-spe-

cific output voltages not only to the GPIO pins but also to the individual RFFE pins.

Furthermore it can measure the (resulting) voltages/currents at these pins using suita-

ble shunt resistances. The firmware takes 500 samples per millisecond (and pin) and

calculates the average voltages/currents over the configured measurement time.

RFFE Cable with adapters (R&S ZN-Z25)

A 2m ribbon cable for connecting a DUT to the RFFE GPIO interface – along with a set

of adapters – is shipped with each RFFE GPIO extension board. It splits the 25-pin

connector of the RFFE GPIO interface to four 10-pin socket connectors. The adapters

provide several different pin configurations.

This interface cable/adaptor kit can also be ordered separately from Rohde & Schwarz

(R&S ZN-Z25, order no. 1334.3424.02). For a detailed pin description, see the

R&S ZN-Z25 data sheet.

4.7.20 Additional removable system drive

Option R&S ZNB-B19 / R&S ZNBT-B19

Option R&S ZNB/ZNBT-B19 provides an additional removable system drive for the

R&S ZNB/ZNBT, including operating system and VNA firmware.

See the data sheet for the available variants of this option.

4.7.21 Extended power range

Various "B2x" Options (see table below)

The "Extended Power Range" options reduce the minimum source power for the

R&S ZNB/ZNBT:

Optional extensions and accessories

R&S ZNB Series User Manual

Questions and Answers: