Getting Started
R&S
®
ZNA
99User Manual 1178.6462.02 ─ 29
Figure 3-22: H/L SWITCH cable for 4 test sets
The H/L SWITCH cable is supplied with the R&S ZNA67EXT. The cable end labeled
H/L SWITCH PORT p is intended for the diplexer connected to analyzer port no. p. The
H/L switch mechanism is controlled by drive port bit no. p (pin 15 + p) of the USER
CONTROL connector.
For a detailed description of the connector, see Chapter 12.3.1.1, "User Port",
on page 1779.
Low frequency mode
In low frequency mode, the control cable is not needed – even if the DUT is connected
to the 1 mm test port connectors of the diplexers.
3.5.6.4 DC power supply
An external DC power supply with country-specific AC cable is provided with each of
the external test sets. Connect the power supply to the 9 V / 1.1 A DC input at the rear
panel of the frequency converter (see "Power supply connector" on page 87) and to a
power outlet. The power supply supports input AC voltages between 100 V and 240 V
and frequencies between 47 Hz and 63 Hz.
A lit LED next to the standby switch indicates that the power supply operates appropri-
ately. If neither of the two LEDs is lit, check the fuse of the instrument (see Chapter 11,
"Maintenance, storage and disposal", on page 1772).
3.5.7 Basic operation
This chapter describes how to configure the standard setup with two external test sets,
for 2-port transmission measurements.
On delivery, the R&S ZNA67EXT is already preconfigured for the number of external
tests sets included in the ordered VNA system variant. A preset does not affect the
converter configuration.
After a factory reset, however, the R&S ZNA67 comes up with its regular VNA setup,
without frequency converter configuration.
Getting started with R&S
ZNA67EXT
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