Use Of Opto-Box 100; Measurements According To Standards - LANGER EMV-Technik OB 100 set User Manual

DE-01728 Bannewitz
LANGER
mail@langer-emv.de
EMV-Technik
www.langer-emv.com

9. Use of Opto-Box 100

9.1. Measurements according to Standards

To decouple LIN or CAN lines during EMC measurements in a measuring booth or an anechoic
chamber, two Opto-Boxes can be connected to each other via optical fibers (Fig. 5). The Opto-Box
located outside the hall should be permanently supplied via plug-in power supply. Its batteries are
thus also charged during operation. If the batteries of the Opto-Box inside the hall are discharged,
the Opto-Boxes can be exchanged at any time and the measurements can be continued.
Figure 5: Two Opto-Boxes for data transmission connected via fiber optics
To improve the EMC properties, we recommend (as specified in various standards anyway) that
the opto-box used inside the hall on the DUT be operated in isolation with a distance of a few
centimeters from any metallic base surface of the test setup (Figure 6).
Figure 6: Opto-Box 100 operated isolated
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OB 100 set