Preparing for use
R&S
®
NRP Series
20
Getting Started 1419.0170.02 ─ 16
3.7.3
Using a LAN connection
Requires a power sensor with networking capabilities, a LAN power sensor.
3.7.3.1
Connecting a LAN power sensor to the LAN
Depending on the available equipment, you can choose from different ways to
connect a LAN power sensor to a controlling host.
The Ethernet interface of a LAN power sensor requires PoE (power over
Ethernet). See
Chapter 4.5, "LAN PoE interface"
Electromagnetic interference (EMI) can affect the measurement results. To
avoid any impact, use category 5 cables or better.
Setup with a PoE Ethernet switch
3
1
2
4
6
HOST
INTERFACE
IN:
3 V or 5 V logic
OUT: min. 2 V into 50
Ω
max. 5.3 V
TRIG2
I/0
PoE
SMART SENSOR TECHNOLOGY
NRP
5
7
Figure 3-3: Setup with a PoE Ethernet switch
1
= Signal source
2
= LAN power sensor
3
= RJ-45 Ethernet connector
4, 6 = RJ-45 Ethernet cable
5
= Controlling host
7
= Ethernet switch supporting PoE power delivery, e.g. R&S NRP-ZAP1
1.
NOTICE!
Incorrectly connecting or disconnecting the power sensor can dam-
age the power sensor or lead to erroneous results. Ensure that you connect or
disconnect the power sensor as described in
Connecting to a controlling host