Rohde & Schwarz ETL 2112.0004.13, Getting Started

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Connecting the Instrument
R&S
®
ETL
37 Getting Started 2118.4130.02 ─ 04
6 Connecting the Instrument
This chapter describes the power supply options and how to connect the R&S ETL to
the power supply and external devices.
6.1 Preventing Electromagnetic Interference
To prevent electromagnetic interference, the R&S ETL must be operated with all
shielding covers fitted. Only suitable and shielded signal and control cables may be
used.
Inputs and outputs for RF/trigger/gate/reference/tracking generator/ASI/video
source/audio source
In particular cables that are connected to these inputs/outputs can cause EMI prob-
lems. Therefore these cables should have at least 80
dB to 1 GHz shielding. This is
usually achieved by means of double-shielded cables.
HDMI output
Use an HDMI cable with appropriate ferrite shielding.
For details on the interface see Chapter 5.2.7, "AV Decoder and TS Processing
(B380)" , on page 33.
USB interfaces
Connect only USB devices that remain within the permissible EMI limits. To avoid any
impact, use cables that are:
●
Double-shielded
●
Not longer than 1 m
For details on the interface see Chapter 5.1.10, "USB Interfaces" , on page 24.
LAN interface
Use a category 5 cable.
For details on the interface see Chapter 5.2.1, "Standard Rear Panel Connectors" ,
on page 26.
GPIB interface
Use a shielded cable.
For details on the interface see Chapter 5.2.3, "GPIB Interface (B10)" , on page 29.
All other cables can be single-shielded. The AC cable is unshielded.
Preventing Electromagnetic Interference