Rohde & Schwarz DVMS4, Getting Started

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Connecting the Instrument
R&S
®
DVMS4
24 Getting Started 2113.7625.02 ─ 10
4 Connecting the Instrument
This chapter describes how to connect the instrument to the power supply and external
devices.
Preventing electromagnetic interference
Use only suitable and double-shielded signal/control cables with at least 80 dB to
1 GHz shielding.
In particular cables that are connected to the ASI inputs and outputs can cause
EMC
problems. Depending on the data rate and the packet timing of the transport
stream, high levels can occur sporadically within the signal spectrum.
4.1 Connecting to the AC Power Supply
The R&S DVMS can be used with different AC power voltages and adapts itself auto-
matically to it. Adjusting the instrument to a particular AC supply voltage is therefore
not required. See the data sheet for the requirements of voltage and frequency.
Shock hazard
Observe the basic safety instructions at the beginning of this manual, especially the
instructions on electrical safety.
1. If you use the S/S2 receiver module (R&S DVMS
‑
B51), connect this module before
switching on the R&S DVMS (see Chapter 3.2.8, "S/S2 Receiver Module
(R&S DVMS-B51)" , on page 21).
2. Connect the R&S DVMS to the AC power supply, using the supplied power cable.
The AC power connector is on the rear panel of the instrument.
Since the R&S
DVMS complies with safety class EN61010
‑
1, connect it only to a
socket with a ground contact.
The R&S DVMS has no AC power switch. Therefore the R&S DVMS starts operating
when it is connected to the AC power supply. For further details, see Chapter 5.1,
"Switching On the Instrument" , on page 26.
4.2 Connecting External Devices
Using the USB interfaces, you can directly connect USB devices to the R&S DVMS.
This number can be increased as necessary by using USB hubs.
Connecting External Devices