User manual

2.6 Power Connection
The EKI-2748FI supports dual +12 ~ 48 V
DC
and 24 V
AC
power inputs and power-fail
relay output.
Terminal Block Front View for Fault Alarm
Contact
Fault Alarm Application Example
24Vdc, 1A
Resistance
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, 2 fails or port link down/break (″Open″
means if you connect relay output with an LED, the light would be off).
31 Chapter 2