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LONWORKS USB Network Interface User’s Guide 13

Appendix A

Alternate Power Line Coupling

Circuit

Echelon includes either a US Plug or a Continental Europe

Plug wall-plug coupling circuit/power supply with each U20

interface. For specialized applications, you can design your

own coupling circuit/power supply, or for 10.8-18VDC

systems, you can make a direct connection without any

additional coupling.

This appendix provides guidelines and information you will

need when doing so, including information on the U20

interface’s power requirements and circuitry, and on the

U20 interface’s wall-plug coupling circuit/power supply.

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Echelon LonWorks USB Network Interface Manuale Utente Pagina 19