Network Connection; Power Connection - Advantech EKI-2728I User Manual

2.4

Network Connection

The EKI-2728I has 8 x RJ-45 ports that support connection to 10 Mbps Ethernet, 100
Mbps Fast Ethernet, or 1000 Mbps Gigabit Ethernet, and half or full duplex operation.
EKI-2728I can be connected to other hubs/switches through the twisted-pair straight-
through cable or the crossover cable up to 100m long. The connection can be made
from any TX port of the EKI-2728I (MDI-X) to another hub or switch either MDI-X or
uplink MDI port.
The EKI-2728I supports auto-crossover to make networking more easy and flexible.
You can connect any RJ-45 (MDI-X) station port on the switch to any device such as
a switch, bridge or router.
2.5

Power Connection

The EKI-2728I supports dual +12 ~ 48 VDC power inputs and power-fail relay output.
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).
Figure 2.5 Power Connector
9 EKI-2728I User Manual