LCX_UserManual_en_08_1.pdf - 第20页

Getting started R&S ® LCX Series 20 User Manual 1 179.2260.02 ─ 08 Prevent overheating as follows: ● Keep a minimum distance of 10 cm between the fan openings of the product and any object in the vicinity to provide …

Getting started

R&S

LCX Series

19User Manual 1179.2260.02 ─ 08

●

Class A equipment is intended for use in industrial environments. It can cause

radio disturbances in residential environments due to possible conducted and radi-

ated disturbances. It is therefore not suitable for class B environments.

If class A equipment causes radio disturbances, take appropriate measures to

eliminate them.

4.1.4 Setting up the R&S LCX

See also:

●

"Setting up the product" on page 10

●

"Intended use" on page 9

4.1.4.1 Placing the R&S LCX on a bench top

To place the product on a bench top

1. Place the product on a stable, flat and level surface. Ensure that the surface can

support the weight of the product. For information on the weight, see the specifica-

tions document.

CAUTION! Foldable feet can collapse. For safety information, see "Setting up the

product" on page 10.

Always fold the feet completely in or out. With folded-out feet, do not place any-

thing on top or underneath the product.

WARNING! A stack of products can fall over and cause injury. Never stack more

than three products on top of each other. Instead, mount them in a rack.

Stack as follows:

● If the products have foldable feet, fold them in completely.

● All products must have the same dimensions (width and length).

● Do not exceed a total load of 50 kg placed on the product at the bottom of the

stack.

Left

= Stacked correctly

Middle left = Stacked incorrectly, too many products

Middle right = Stacked incorrectly, different dimensions

Right = Stacked incorrectly, folded-out feet

NOTICE! Overheating can damage the product.

Preparing for use

Getting started

R&S

LCX Series

20User Manual 1179.2260.02 ─ 08

Prevent overheating as follows:

● Keep a minimum distance of 10 cm between the fan openings of the product

and any object in the vicinity to provide sufficient airflow and ventilation.

● Do not place the product next to heat-generating equipment such as radiators

or other products.

4.1.4.2 Mounting the R&S LCX in a rack

To prepare the rack

1. Observe the requirements and instructions in "Setting up the product" on page 10.

NOTICE! Insufficient airflow can cause overheating and damage the product.

Design and implement an efficient ventilation concept for the rack.

Mounting the R&S LCX in a rack

To mount the R&S LCX in a rack:

1. Use an adapter kit that fits the dimensions of the R&S LCX to prepare the

R&S LCX for rack mounting.

a) Order the rack adapter kit designed for the R&S LCX. For the order number,

see the specifications document.

b) Mount the adapter kit. Follow the assembly instructions provided with the

adapter kit.

2. Lift the R&S LCX to shelf height.

3. Push the R&S LCX onto the shelf until the rack brackets fit closely to the rack.

4. Tighten all screws at the rack brackets with a tightening torque of 1.2 Nm to secure

the R&S LCX at the rack.

Unmounting the R&S LCX from a rack

To unmount the R&S LCX from a rack:

1. Loosen the screws at the rack brackets.

2. Bring the lifting equipment to shelf height.

3. Remove the R&S LCX from the rack.

4. If placing the R&S LCX on a bench top again, unmount the adapter kit from the

R&S LCX. Follow the instructions provided with the adapter kit.

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Getting started

R&S

LCX Series

21User Manual 1179.2260.02 ─ 08

4.1.5 Considerations for test setup

Cable selection and electromagnetic interference (EMI)

Electromagnetic interference (EMI) can affect the measurement results.

To suppress electromagnetic radiation during operation:

●

Use high-quality shielded cables, especially for the following connector types:

– Connectors for external devices

Double-shielded data cables. The length of data cables must not exceed 3 m.

– Connectors for signal transmission

Shielded coaxial cables. The length of signal cables must not exceed 1 m.

We recommend that you use the R&S LCX-Z11 BNC-to-BNC extension (1 m)

from Rohde & Schwarz.

– BNC

Double-shielded BNC cables.

– USB

Double-shielded USB cables. The length of passive USB cables must not

exceed 1 m.

– LAN

At least CAT6+ cables

– IEEE-488 (GPIB)

Double-shielded cables. We recommend that you use the double-shielded

cable "R&S HZ72" from Rohde & Schwarz.

●

Always terminate open cable ends.

●

Ensure that connected external devices comply with EMC regulations.

Signal input and output levels

Information on signal levels is provided in the specifications document. Keep the signal

levels within the specified ranges to avoid damage to the product and connected devi-

ces.

4.1.6 Connecting to power

For safety information, see "Connecting to power" on page 11.

When using the R&S LCX the first time, you can skip Replacing the external bias fuse

and Replacing the line fuse.

If there are any problems during power-on or malfunction of the bias, check the condi-

tion of the mains fuse. Also check the fuse for the external bias input as described in

these instructions. They explain how to check and change the protective fuses, if nec-

essary.

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