Annexes
R&S
®
ZNB/ZNBT
1268
User Manual 1173.9163.02 ─ 38
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
10.3 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
documentation CD-ROM or the "Contact" page at the beginning of the Help system.
10.3.1 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