Preparing for use
R&S
®
NRX
21
Getting Started 1424.7070.02 ─ 09
4.7.4
USB 2.0 host interfaces
See
Chapter 5.1.5, "USB host interface"
Suitable for USB power sensors. You can increase the number of connected
power sensors by using USB hubs.
4.8
Connecting USB and external devices
Apart from connecting power sensors, you can use the USB interfaces to connect
USB devices. You can increase the number of connected devices by using USB
hubs.
Due to the large number of available USB devices, there is almost no limit to the
possible expansions. In the following, useful USB devices are listed exemplarily:
●
Memory stick for easy transfer of data to/from a computer (e.g. firmware
updates).
●
Mouse if you prefer this way of operation over a touchscreen.
4.9
Switching on or off
Table 4-1: Overview of power states
Status
LED
Position of power switch
Off
Off
[0]
Standby
orange
[I]
Ready
green
[I]
To switch on the product
The product is off but connected to power.
1. Set the switch on the power supply to position [I]. See
The LED of the [standby] key is orange. See
Chapter 5.1.6, "On/standby key"
Switching on or off