Concepts and Features
R&S
®
ZNB/ZNBT
230User Manual 1173.9163.02 ─ 53
ing to the MIPI® Alliance "System Power Management Interface Specification" and 10
General Purpose Input/Output (GPIO) pins. RFFE command execution and GPIO volt-
age settings can be synchronized with the sweep (sweep sequencer functionality);
however, RFFE read is not supported in sweep sequencer mode.
Versions and variants
The following variants of the RFFE-GPIO extension board are available:
●
R&S ZN-B15 variant 02, order number 1323.9355.02
●
R&S ZN-B15 variant 03, order number 1323.9355.03, including current and voltage
measurements for all RFFE and GPIO pins
●
R&S ZN-Z15 variant 02, order number 1325.5905.02, the external version of
R&S ZN-B15 variant 02
●
R&S ZN-Z15 variant 03, order number 1325.5905.03, the external version of
R&S ZN-B15 variant 03
Information about the voltage and current levels is available in Chapter 11.3.5, "RFFE -
GPIO Interface ", on page 1395.
●
For the R&S ZNBT, only the external versions R&S ZN-Z15 can be used.
●
Currently, the external versions have to be connected via Direct Control, which in
turn requires Device Control option R&S ZNB/ZNBT-B12.
●
No matter if connected internally or externally, there is no need to perform any kind
of calibration or alignment of the extension board. The analyzer firmware automati-
cally detects and supports it. The controlled devices can be hot-plugged.
●
The analyzer firmware only supports a single RFFE GPIO interface board.
Mounting the internal unit (R&S ZNB only)
The internal version R&S ZN-B15 of the RFFE-GPIO extension board uses the same
slot as the Bias Tee option R&S ZNB-B1 (see Chapter 5.7.7, "Bias Tees (R&S ZNB
only)", on page 227). In case you have already installed the Bias Tee option, you have
to remove it 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-
Optional Extensions and Accessories
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