Gpib Communication; The Gpib Address; Usb Communication - ILX Lightwave LDX-32420 User Manual

Before connecting the LDX-32420 High Power Precision Current Source to a power
source, verify that the AC power source matches the setting of the LDX-32420's voltage
indicated on the rear panel of the instrument.
To avoid electrical shock hazard, connect the instrument to properly earth-grounded,
3-prong receptacles only. Failure to observe this precaution can result in severe injury or
death.

GPIB Communication

The IEEE488/GPIB computer interface is located on the rear panel above and to
the left of the AC power input module as shown in Figure 1.2. Attach the GPIB
cable to the 24-pin connector. The connector is tapered to ensure proper
orientation. Tighten the two screws on the connector finger tight.
A total of 15 devices can be connected together on the same GPIB interface bus.
The cables have single male/female connectors on each end so that several
cables can be stacked. This allows more than one cable to be attached to any one
device. However, the maximum length of the GPIB cables must not exceed 20
meters (65 feet) total, or 2 meters (6.5 feet) per device.

The GPIB Address

The talk and listen addresses on the LDX-32420 are identical. This GPIB address
is read locally by pressing the GPIB LOCAL switch with the address displayed on
the display. The instrument comes from the factory configured with the GPIB
address set to 1. You can change the GPIB address via the front panel. A
procedure for changing the address can be found in the section "Changing the
GPIB Address" in Chapter 3.

USB Communication

Install the USB driver included in the shipping kit prior to connecting the USB
cable to the instrument. Instructions for installing the driver are given in the USB
section of Chapter 3. The USB Type B connector is located on the rear panel just
to the left of the power input module as shown in Figure 1.2. Attach the USB cable
to the instrument in the proper orientation. A USB cable is provided in the shipping
kit.
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I N T R O D U C T I O N A N D S P E C I F I C A T I O N S
GPIB Communication
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C H A P T E R
3
LDX-32420
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