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Modular Managed Ethernet Switches

Scalable Gigabit Modular PlatformDelivers Flexible Mixtures of Media and Bandwidthwidth

EDS-728

Up to 24 remote devices

Fiber Optic Cable (100BaseFX or 1000BaseSX/LX/LHX/ZX)Twisted Pair Cable (10/100BaseT(X))

EDS-728

EDS-510A

EDS-728

VPort 351

Gigabit Turbo Ring

Video-over-IP Server Farm Users

EDS-510A

EDS-518A EDS-518A

EDS-828 Layer 3 Gigabit Modular Managed Switch

EDS-728 24+4G-PortGigabit Modular Managed Switch

MOXA Turbo RingRecovery < 20 ms

Total Solutions for Industrial Device Networking

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Solution Tutorial

A router is a sophisticated networking device that routes packets from one network to another. Routers are similar to bridges, but differ in that bridges work at the “link layer” (Layer 2 of the OSI model) whereas routers work at the “network layer” (Layer 3 of the OSI model). This means that routers and bridges use different information

from the TCP/IP packet when transmitting data from one network to another. Moxa provides not only layer 2 switches but also EDS-800 Series layer 3 switches to suit diverse communication needs of in or inter-networks.

What is Routing?

The EDS-800 series give administrators the option of using static routing to move packets between networks. With static routing, administrators must configure the routing table in their routers

manually by inputting the address of each network to which data will be routed. This means that administrator must reconfigure the routing table to add new network destinations.

Static Routing

In addition to static routing, the EDS-800 series also support RIP. RIP is an often used routing protocol that is based on the Bellman-Ford

Algorithm. The RIP algorithm uses “hop count” as a measure help determine how packets should be routed from one network to another.

Routing Information Protocol (RIP)

OSPF, which is considered the successor to RIP, is a non-proprietary Internal Gateway Protocol (IGP). EDS-828's OSPF protocol itself is based on link-state technology, which is somewhat different than the

vector-based algorithms that traditional Internet routing protocols (RIP, for example) use.

Open Shortest Path First (OSPF)

Router 1

Router 2

Source Host PC: 192.168.1.1

Destination Host PC: 140.123.1.1

Host

The EDS-800 Series supports both static routing and dynamic routing algorithms (RIP). The static routing algorithms make use of user-configured routing tables that tell the router how to send packets from one part of the network to another. The mappings that define the static routing algorithms must be configured by the network administrator. Static routing is certainly easy to set up, but is only useful for simple networks with predictable traffic flow. Since the routing table cannot update itself automatically, the network administrator must remember to modify the routing table when changes are made to the network

topology. Therefore, in some applications that require to change topologies of networks frequently, dynamic routing algorithms (RIP, for example) are widely used. Dynamic routing algorithms analyze the routing update messages of packets to infer how the network has changed, and then automatically send out new routing rules. The updated messages are transmitted throughout the network, so that other routers on the network can rerun their own algorithms and update their local routing tables.

Static versus Dynamic

Intelligent Layer 3 Network Control

Port Trunking at up to 1.6 Gbps

Device without IEEE802.1X authorization

Device with IEEE802.1X authorizationRADIUS

The EDS-800/700 series supports IEEE802.1D-1998 GMRP (GARP Multicast Registration Protocol), and IGMP Snooping provides the ability to prune multicast traffic so that the traffic only travels to those end destinations that require this kind of traffic. As a result, the amount of traffic on the Ethernet LAN is reduced.

Gigabit Ethernet Redundant Ring and Ring Coupling Capability

LACP for Flexible Network Connections

IEEE802.1X Enhances User Authentication

IGMP Snooping and GMRP for Filtering Multicast Traffic

MOXA Turbo Ring

Group 1 Multicast Stream Group 2 Multicast Stream

IGMP Group 2 IGMP Group 2IGMP Group 1 IGMP Group 1

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Modular Managed Ethernet Switches

VLANs can be used to overcome restrictions imposed by the physical network connections. In one respect, devices connected to different physical networks can be allowed to communicate easily by assigning them to the same VLAN. In addition, devices assigned to different VLANs will not be able to communicate with each other, providing

extra security and protection from unwanted invasion or traffic. The EDS-800/700 series supports port-based VLAN (the IEEE802.1Q standard) and GVRP protocol, which can exchange the same interoperable parameters to keep consistent VLAN settings over the entire network.

VLAN Eases Network Planning

Ethernet has become the default data communications medium for industrial automation applications. In fact, it’s not uncommon for the transfer of video, voice, and high-rate industrial application data to be integrated into one network. The MOXA EDS-800/700 series, which comes equipped with a redundant Gigabit Ethernet protocol called Gigabit Turbo Ring, give system maintainers a convenient means of setting up a versatile yet stable Gigabit Ethernet network.

IEEE802.3ad (LACP, Link Aggregation Control Protocol) provides flexible network connections and a redundant path for critical devices. The EDS-800/700 series allows users to set up a wider communication path by aggregating up to four trunk groups in parallel. A maximum of eight ports can be assigned to one trunk group for optimum network connection and redundant path. When selected ports are grouped for trunking, LACP will exchange information to determine whether the ports selected in a group can be trunked together or not.

The EDS-800/700 series supports IEEE802.1X (Port-Based Network Access Control) to enhance user authentication. When IEEE802.1X is activated, only authorized users can access the port. Authentication is done using the local user database or an external RADIUS server.

Advanced Layer 2 Network Management

Total Solutions for Industrial Device Networking

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Solution Tutorial

The SNMP OPC Server Pro software package can convert SNMP into OPC format. The vertical integration of SNMP-Management Information into existing OPC-based SCADA-packages gives the

customer the ability to establish an Ethernet network management application that is integrated with existing visualization and control applications.

Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is delivered consistently and predictably. The EDS-800/700 series can inspect IEEE802.1p/1Q layer 2 CoS tags, and even layer 3 TOS information, to provide a consistent classification

of the entire network. The QoS capability of the EDS-800/700 series improves your industrial network’s performance, and increases determinism for mission critical applications.

RMON (Remote Network Monitoring) is an IETF (Internet Engineering Task Force) standard monitoring specification that allows various network agents and console systems to exchange network monitoring data. RMON provides you with comprehensive network-fault diagnosis,

planning, and performance-tuning information, and helps you manage your network in a more proactive manner. If configured correctly, RMON probes deliver information before problems occur, allowing you can take action before the problems affect users.

The EDS-800/700 series not only prevents broadcast storms, but also configures the rate limiting of unicast/multicast/broadcast packets, and

in this way gives administrators full control of limited bandwidth to prevent unpredictable faults.

In some cases, a network is so large that it is difficult to achieve the expected communications level. Industrial communications applications use more of a command-response style than the file-transfer style used in office network environments. This means that

when first setting up an industrial Ethernet network, control engineers may need to use a second port to monitor the actual activity between their devices and computer host. The EDS-800/700 series’ mirroring port function helps ensure that the system behaves as expected.

Warning by e-mail or SNMP Trap

The EDS-800/700 series can send out a warning e-mail or SNMP trap when an exception is detected, providing system managers with real-time alarm messages.

Warning by Relay Output

The EDS-800/700 series provides two relay outputs that can be set up to indicate events with different importance to notify or warn engineers

in the field, so the engineer can use the appropriate emergency maintenance procedures to respond quickly to higher priority messages.

DI to Integrate Other Important Sensors

With two digital inputs, the EDS-800/700 series can integrate sensors into its automatic alarm mechanism, sending warning messages to an IP network by e-mail, SNMP trap, or OPC.

QoS Increases Determinism

RMON for Efficient Network Monitoring and Proactive Capability

Bandwidth Management Prevents Unpredictable Network Status

Port Mirroring for Online Monitoring

Automatic Warning by Event

Network Management with EDS-SNMP OPC Server Pro

Modular Design, Maximum Flexibility

Angled LED Display provides clear viewing from all vertical angles, making it easy to check the status of the switch and each port.

Separate LEDs for the system and interface modules show clearly the current status of the system and each port.

The Mode Switch shows the modes selected for the Interface Module, giving you an easy way to view the status of all the ports at one glance.

User Friendly LED Display

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Modular Managed Ethernet Switches

Flexible Fast Ethernet Module The EDS-800/700 series lets you install up to 24 Fast Ethernet ports. Select from eight 4-port fast Ethernet Modules with a combination of 10/100BaseT(X) (RJ45 connectors) and 100BaseFX (Single/Multimode, SC/ST connectors).

Long-haul Transmit Distance Long-haul single mode optical fiber can be used to provide 100 Mbps transmission over a distance of 40 km or 80 km.

Easy and Flexible Installation

Model

EDS-828 28 4 24 √ √ √ √ √ √ √ √ √ √ √

EDS-728 28 4 24 √ √ √ √ √ √ √ √ √ √

EDS-726 26 2 24 √ √ √ √ √ √ √ √ √ √

Future-proof Investment

Scalable Modular Gigabit Solution 100 Mbps of bandwidth is not enough to meet the requirements posed by industrial Ethernet applications that involve transmitting both voice and video. The EDS-800/700 series, with their four or two Gigabit ports and Gigabit Turbo Ring, give you a reliable and high performance backbone. Select from five different 1 or 2-port Gigabit modules to meet current needs or prepare for future demands.

No.

of P

orts

Gig

abit

Ethe

rnet

(10/

100/

1000

Mbp

s)Fa

st E

ther

net

(10/

100

Mbp

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outin

g(S

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, RIP

V1/

V2)

Turb

o R

ing

RST

P/ST

P

IGM

P/G

MR

P

Port

Tru

nkin

g

IEEE

802.

1X

Port

Loc

k

SNM

P/R

MO

N

VLAN

QoS

ABC-

01*

Comparison Chart for Modular Switches

Port Interface Features

DIN-Rail Mounting KitThe rugged and user-friendly DIN-Rail Kit, which is easily installed with a flat-head screw driver, has passed stringent industrial vibration, free fall, and shock tests.

*ABC-01 is an RS-232 RJ45-based automatic backup configurator for Managed Switches. Please check page 8-1 for detailed information.

Wall Mounting Kit The Wall Mounting Kit provides users with a handy option that meets the requirements of many different industrial applications.