Getting started
R&S
®
NGU
25
User Manual 1179.2531.02 ─ 03
Digital voltmeter (DVM)
The DVM+ and DVM- pins on the channel connector are available only with R&S
NGU201 model equipped with option R&S NGU-K104 (P/N: 3663.0390.02 ).
Modulating signal (MOD)
The MOD+ and MOD- pins on the channel connector are available only with R&S
NGU401 model.
The channel connectors contain both output ("F+", "F-") and sense ("S+", "S-") connec-
tions.
USB connectors (10, 11)
The USB host connector (Type-A) can be used for mass storage devices like the USB
connector at the front panel.
The USB device connector is a Type-B connector for remote control operation.
Ethernet connector (12)
10/100 Ethernet port for remote control operation via the local area network.
For a detailed description on the connection setup, see
Option IEEE-488 (GPIB) interface (13)
An IEEE-488 (GPIB) interface can be ordered with option R&S NGU-B105 (P/N:
3661.0763.02). This interface is not user installable.
Digital I/O connector (14)
The Digital I/O option, R&S NGU-K103 (P/N: 3662.9335.02) must be installed for this
function to be available in the instrument.
Figure 4-4: Digital I/O connector (female socket front view)
Table 4-2: Digital I/O pin layout
Pin
Signal
Direction
Pin
Signal
Direction
1
*Inhibit Ch1
IN
9
-
-
2
Ext. Trigger Ch1
IN
10
-
-
3
Digital In1
IN
11
Digital Output
Fault
OUT
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