Network Connection; Power Connection - Advantech EKI-2525I User Manual

2.4 Network Connection

The EKI-2525/2525I has 5 x RJ-45 ports or EKI-2528/2528I has 8 x RJ-45 ports that
support connection to 10 Mbps Ethernet, or 100 Mbps Fast Ethernet, and half or full
duplex operation. EKI-2525/2525I/2528/2528I can be connected to other hubs or
switches through a twisted-pair straight through the cable or a crossover cable up to
100m long. The connection can be made from any TX port of the EKI-
2525/2525I/2528/2528I (MDI-X) to another hub or switch either MDI-X or uplink MDI
port.
The EKI-2525/2525I/2528/2528I 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-2525/2525I/2528/2528I supports dual +12 ~ 48 V
fail relay output.
Figure 2.8: 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).
EKI-2525_2525I_2528_2528I_Manual_ed4.doc
power inputs and power-
DC
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