Wavetronix SmartSensor Matrix (SS-225) - User Guide Bedienungsanleitung PDF herunterladen (Seite 105)

104 APPENDIX

Note

This appendix covers the basics of the Click 221. For a full explanation of how to use

the Click 221, see the Click Series User Guide.

Outgoing DC- voltage onto the T-bus is protected from electrical surges incoming from the

DC+ and DC- screw terminals. ese terminals do not have reverse-polarity protection,

but assumes that all downstream devices will have proper polarity protection. e surge

protection meets the IEC 61000-4-S 4KV (Class 4) specication.

Figure C.1 – Click 221

e LED on the faceplate will be on if the device is properly powered and the surge protec-

tion is operational (see Figure C.1). e LED will be o if the DC wires are wired backwards

(reverse polarity), the device is not powered or the surge protection circuitry is no longer

operational. If the LED ickers on an then o when power is applied, this means that the

device is conducting power, but the surge is no longer fully functional. When the surge is no

longer fully functional, please contact Wavetronix Technical Services for assistance.

Appendix D – Preassembled Backplate

e standard four-approach intersection preassembled backplate is 11 in. (28 cm) wide and

11.5 in. (29.2 cm) high. All wiring on the rack and backplates is done using stranded wires

with wire ferrules for screw terminal connections (see Figure D.1).

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Wavetronix SmartSensor Matrix (SS-225) - User Guide Bedienungsanleitung Seite 105