User manual
EKI-2741F-SX-LX User Manual   20 
2.6 Power Connection 
The EKI-2741F/SX/LX support dual +12 ~ 48 V
DC
 power inputs and power-fail relay 
output. 
Figure 2.13: Pin Assignment of the Power Connector 
You can connect an alarm indicator, buzzer or other signaling equipment through the 
relay output. The relay opens if power input 1 or 2 fails ( “Open” means if you connect 
relay output with an LED, the light would be off). 










