Advantech 8G ports Industrial Managed Redundant Gigabit Ethernet Switch, 4 Gigabit Copper and 4 Gigabit SFP, EKI-7758F Chapter 1 Overview

EKI-7758F User Manual 2

Chapter 1 Overview

To create reliability in your network, the EKI-7758F 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 4 x 10/100/1000Base-T(X) fast Ethernet ports, the EKI-7758F come

equipped with 4 SFP (mini-GBIC) fiber optic ports. Traditional RJ-45 ports can be used

for uplinking wide-band paths in short distance (< 100 m), while the SFP slots can be

used for the application of wideband uploading and long distance transmissions to fit

the field request flexibility. Also, the long MTBF (Mean Time Between Failures)

ensures that the EKI-7758F will continue to operate until a Gigabit network

infrastructure has been established, without requiring any extra upgrade costs.

1.1.1 The SFP Advantage

The EKI-7758F’s four SFP fiber slots provide a lot of flexibility when planning and

implementing a network. The slots can accept any SFP-type fiber module and these

modules are designed for transmitting over distances of either 500m (multi-mode),

10km, 30km, 50km, 70km or 110km (single-mode) – and the slots support SFP

modules for WDM single-fiber transmissions. This means that you can easily change

the transmission mode and distance of the switch by simply pulling out the SFP

module and plugging in a different module. The SFP modules are hot-swappable and

plug-and-play! Also, the fact that the switch has four of these slots, means that the

network manager can, for example, have one 10km module in one slot and one 110km

in the other.

1.1.2 High-Speed Transmissions

The EKI-7758F 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.

1.1.3 Dual Power Input

To reduce the risk of power failure, the EKI-7758C provides +12 ~ 48 VDC dual power

inputs. with power reserve protection, which can prevent the switch device broken by

wrong power wiring. When one of power input is fail, P-Fail LED will turn on and send

an alarm through a relay output for notifying user.

1.1.4 Flexible Mounting

EKI-7758F is compact and can be mounted on a DIN-rail or panel, so it is suitable for

any space-constrained environment.