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Preparing for use

R&S

LCX Series

22Getting Started 1179.2254.02 ─ 03

To connect USB devices with external power supply

If you need more power for the external bias, you can use an USB device with

external power supply.

1. NOTICE! Connected devices with external power supply can feed back cur-

rent into the 5 V power supply of the USB interface and thus damage the

R&S LCX.

Make sure that there is no connection between the positive pole of the power

supply and the +5 V power pin of the USB interface (VBUS).

2. Connect the USB storage device to the "USB A" connector at the front panel.

3.9 Connecting a test fixture

The R&S LCX enables you to measure passive components like capacitors, coils,

resistors, transformers. To measure such components requires the use of suitable

measurement adapters, in this context considered as test fixtures.

For information on the test fixtures available for the R&S LCX, see "Measurement

Setups > About Test Fixtures" in the user manual.

The test fixtures are connected firmly to the four BNC connectors H POT (high

potential), H CUR (high current), L POT low potential) and L CUR (low current) at

the front panel.

The following instructions describe the mechanical connection of the

adapter only. Before starting a measurement, consider the prerequisites and

steps to be performed before as described in Chapter 5, "Trying out the

instrument", on page 33.

Connecting a test fixture to the instrument

To connect a 4-terminal test fixture to the R&S LCX:

1. NOTICE! Check all terminals to make sure that they are not damaged.

NOTICE! Before connecting, discharge all components. Externally supplied

voltage can damage the BNC connectors of the R&S LCX.

Turn the levers at the "BNC" connectors of the test fixture to the left to release

the lock (1).

Connecting a test fixture

R&S LCX Series Getting Started

Other manuals for R&S LCX Series