Connecting the Instrument
R&S
®
ETL
37Getting 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
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