Keri Systems KWX-900 - Manual (Page 11)

KWX - 900 MHz Wireless 485 Network Transceiver
Quick Start Guide
Page 11 of 14 P/N: 01949-001 Rev. A
5.2 Wiring the Unit
Keri KWX units have two cables: one for the power and one for network data.
5.2.1 Unit Power
Connect the power cable to either a controller or to a 12 VDC power supply as shown in Figure 8. The
yellow power LED will be ON. Choose the type of connection based on the length of the run; the
longer the run the greater the IR voltage drop at the end of the run. For reliable operation, the voltage
measured at the unit should be 10 VDC or greater.
Figure 8: Power Wiring Diagram