Annexes
R&S
®
ZNB/ZNBT
1397
User Manual 1173.9163.02 ─ 53
The output voltages of the RFFE and GPIO signals do not have an offset to compen-
sate additional losses into account. Please adjust the voltage level directly on your
board or at the pins of the connected device.
Table 11-5: Voltage/Current Measurement (Variant 03 only)
Range
Resolution
Voltage
RFFE 1 and 2
(VIO/DATA/CLK)
0 V to +3 V
100 μV
GPIO 1 to 10
-5 V to +10 V
100 μV
Current*
RFFE 1 and 2 (VIO/DATA/CLK), GPIO 1 to 8
10 Ω source resistance (shunt)
–20 mA to +20 mA
10 μA
100 Ω source resistance (shunt)
–2 mA to +2 mA
1 μA
1 kΩ source resistance (shunt)
–200 μA to +200 μA
100 nA
10 kΩ source resistance (shunt)
–20 μA to +20 μA
10 nA
100 kΩ source resistance (shunt)
–2 μA to +2 μA
1 nA
GPIO 9 and 10
–100 mA to +100 mA
10 μA
*
the current values are valid if the GPIO voltages are within -5
V to +9
V
11.4
Maintenance
The R&S
ZNB/ZNBT vector network analyzer does not require any special mainte-
nance.
For our support center address and a list of useful R&S contact addresses, refer to the
"Contact" page at the beginning of the Help system.
11.4.1
Cleaning
Risk of electric shock
If moisture enters the casing, for example if you clean the instrument using a moist
cloth, contact with the instrument can lead to electric shock. Before cleaning the instru-
ment other than with a dry cloth, make sure that the instrument is switched off and dis-
connected from all power supplies.
Maintenance
