Advantech EKI-7556MI, Руководство пользователя, Страница: 11 / 105

Chapter 1
Overview
1.1 Introduction
To create reliability in your network, the EKI-7556MI comes equipped with a proprietary
redundant network protocol—X-Ring that was developed by Advantech, which provides users
with an easy way to establish a redundant Ethernet network with ultra high-speed recovery time
less than 10 ms.
Aside from 16 x 10/100Base-TX fast Ethernet ports, the EKI-7556MI comes equipped with 2
100Mbps fiber expansion ports. The fiber ports can be used for the application of wideband
uploading and long distance transmissions to fit the field request flexibility.
1.1.1 High-Speed Transmissions
The EKI-7556MI includes a switch controller that can automatically sense transmission speeds
(10/100 Mbps). The RJ-45 interface can also be auto-detected, so MDI or MDI-X is automatically
selected and a crossover cable is not required. All Ethernet ports have memory buffers that
support the store-and-forward mechanism. This assures that data is properly transmitted.
1.1.2 Dual Power Inputs
To reduce the risk of power failure, EKI-7556MI pr12 ~ 48 V
DC
dual power inputs. If there
is power failure, EKI-7556MI will automatically switch to the secondary power input.
1.1.3 Flexible Mounting
EKI-7556MI is compact and can be mounted on a DIN-rail or panel, so it is suitable for any
space-constrained environment.
1.1.4 Wide Operating Temperature
The operating temperature of the EKI-7656CI is between -40 ~ 75
o
C. With such a wide range,
you can use the EKI-7556MI in some of the harshest industrial environments that exist.
1.1.5 Easy Troubleshooting
LED indicators make troubleshooting quick and easy. Each 10/100 Base-TX port has 2 LEDs
that display the link status, transmission speed and collision status. Also the power/system
indicators help you diagnose power and ring master status immediately.
11 Chapter 1