Instrument Tour
R&S
®
FSPN
35
Getting Started 1179.4370.02 ─ 01
The three-pinned probe power connector supports supply voltages from +15
V to
-12.6
V and ground. The maximum permissible current is 150
mA. This probe
power connector is suitable, for example, for high-impedance probes.
4.1.11
Baseband Input
The "Baseband Input 50
Ω
" connector is a female BNC connector that you can
use to connect a DUT for baseband noise measurements. Do not overload the
input. For maximum allowed values, see the data sheet.
4.1.12
Trigger Input and Output
The female BNC connector labeled "Trigger Input / Output" allows you to receive
an external trigger signal or send a trigger signal to another device.
When you are using the connector as a trigger input, you can apply voltages in
the range from 0.5
V to 3.5
V (the default value is 1.4
V). The typical input impe-
dance is 10
k
Ω
.
When you are using the connector as a trigger output, the TTL compatible signal
is transmitted (0
V / 5
V).
Note that you can find another connector for trigger input and output on the rear
panel.
For more information about controlling and configuring trigger input and output,
refer to the User Manual.
4.1.13
DC Power Supply
The female BNC connectors labeled "V
Tune
", "V
Aux
" and "V
Supply
" allow you to sup-
ply external devices, for example a DUT or an external reference oscillator, with
the required voltage.
The V
Supply
connector provides supply voltage from 0
V to +16
V, for example to
provide voltage for an oscillator. The supported maximum current is 2000
mA.
The V
Tune
connector provides tuning voltage from
‑
10
V to +28
V. The supported
maximum current is 20
mA.
The V
Aux
connector provides DC voltage from
‑
10
V to +10
V. The supported max-
imum current is 100
mA.
Front Panel View
