Echelon LonWorks USB Network Interface - Manual (Page 19)

L
ON
W
ORKS
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.