weed instrument EOTec 2104 User manual

EOTec 2104 User Manual
Industrial Ethernet Ring Switch
April 2007
First Edition
Weed Instrument Company, Inc.
707 Jeffrey Way, P.O. Box 300
Round Rock, TX 78680-0300
USA
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.weedinstrument.com
Weed Instrument Co., Inc. reserves the right to make any modifications to
this document or the information contained herein at any time without notice.

Limited Warranty
Weed Instrument Co., Inc. (“Seller”) warrants that the Products will operate substantially in conformance
with Seller’s published specifications, when subjected to normal, proper and intended usage by properly
trained personnel, for a period of two (2) years from the date of shipment to Buyer (the “Warranty
Period”). Seller agrees during the Warranty Period, provided it is promptly notified in writing upon the
discovery of any defect and further provided that all cost of returning the defective Products to Seller are
pre-paid by Buyer, to repair or replace, at Seller’s option, defective Products so as to cause the same to
operate in substantial conformance with said specifications. Replacement parts may be new or
refurbished, at the election of Seller. All replaced parts shall become the property of Seller. Shipment to
Buyer of repaired or replacement Products shall be made in accordance with the provisions of Section 5
of the Sellers Terms & Conditions of Sale. Lamps, fuses, bulbs and other expendable items are expressly
excluded form the warranty. Seller’s sole liability with respect to equipment, materials, parts or software
furnished to Seller by third party suppliers shall be limited to the assignment by Seller to Buyer or any
such third party supplier’s warranty; to the extent the same is assignable. In no event shall Seller have
any obligation to make repairs, replacements or corrections required, in whole or in part, as the result of
(i) normal wear and tear, (ii) accident, disaster or event of force majeure, (iii) misuse, fault or negligence
of or by Buyer, (iv) use of the Products in a manner of which they were not designed, (v) causes external
to the Products such as, but not limited to, power failure or electrical power surges, (vi) improper storage
of the Products or (vii) use of the Products in combination with equipment or software not supplied by
Seller. If Seller determines that Products for which Buyer has requested warranty services are not
covered by the warranty hereunder, Buyer shall pay or reimburse Seller for all costs of investigating and
responding to such request at Seller’s then prevailing time and materials rates. If Seller provides repair
services or replacement parts that are not covered by the warranty, Buyer shall pay Seller therefore at
Seller’s then prevailing time and materials rates. ANY INSTALLATION, MAINTENANCE, REPAIR,
SERVICE, RELOCATION OR ALTERATION TO OR OF, OR OTHER TAMPERING WITH, THE
PRODUCTS PERFORMED BY ANY PERSON OR ENTITY OTHER THAN SELLER WITHOUT
SELLER’S PRIOR WRITTEN APPROVAL, OR ANY USE OF REPLACEMENT PARTS NOT SUPPLIED
OR APPROVED BY SELLER, SHALL IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH
RESPECT TO THE AFFECTED PRODUCTS.
EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY, SELLER DISCLAIMS ALL WARRANTIES,
WHETHER EXPRESS OR IMPLIED, ORAL OR WRITTEN, WITH RESPECT TO THE PRODUCTS,
INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE. SELLER DOES NOT WARRANT THAT THE
PRODUCTS ARE ERROR-FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT.
Copyright
Copyright @ 2007 Weed Instrument Company, Inc.
All rights reserved.
Reproduction without permission is prohibited.
ii

Standards and Safety
The EOTec 2104 Ethernet Ring Switch from Weed Instrument has been designed to meet the
following standards.
EMI emissions – FCC part 15, ICES 003, EN55022
EMC immunity – IEC61326-1
(-40°C To +85°C)
Install the Weed Ring Switch in accordance with local and national electrical
codes.
Lightning Danger: Do not work on equipment during periods of lightning
activity.
Do not connect a telephone line into one of the Ethernet RJ45 connectors.
This product is designed to meet electrical safety and Class I, Division 2 hazardous
specifications, but is currently awaiting regulatory approvals.
Refer to the Technical Specifications section, at the end of this manual, for complete
specifications on agency approvals.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures: Reorient or relocate the receiving antenna; Increase the
separation between the equipment and receiver; Connect the equipment into an outlet on a
circuit different from that to which the receiver is connected; Consult the dealer or an
experienced radio/TV technician for help.
iii

Table of Contents
Chapter 1 Introduction........................................................1
Introducing the EOTec 2104 Ethernet Ring Switch.........................................1
Feature Overview............................................................................................3
Optional Accessories.......................................................................................4
Advanced Industrial Ethernet Capability..........................................................4
User-Friendly Configuration Tools...................................................................5
Chapter 2 EOTec 2104 Ring Switch Hardware .................6
Designed for Industrial Applications................................................................6
EOTec 2104 Ring Switch Performance...........................................................6
EOTec 2104 Ring Switch Power and Alarm Connections...............................7
OK Output Alarm (Global Alarm Relay)...........................................................8
Switch Layout..................................................................................................9
EOTec 2104 Ring Switch LEDs.....................................................................10
Ethernet and Fiber Optic Wiring....................................................................12
RJ45 Wiring Guidelines.................................................................................12
Ethernet Fiber Wiring Guidelines ..................................................................12
Chapter 3 Introducing Switch Tools................................13
Loading the EOTec 2104 Software ...............................................................13
Getting Started with EOTec 2104 Switch Tools ............................................17
Switch Configuration Using the Auto-Find Feature.......................................17
Switch Configuration Using the Manual Method...........................................18
Toolbar Buttons.............................................................................................18
Menu Commands..........................................................................................19
Creating and Saving a New Base Configuration...........................................21
Default Project File........................................................................................23
Using the Base Configuration Windows........................................................25
Switch Configuration Window – General Page.............................................26
Switch Configuration Window – Ports Page..................................................26
Configuring the Weed Ring Switch Ports.........................................26
The Port Configuration Interface......................................................27
Switch Configuration Window – Rings Page.................................................28
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Activating and Configuring a Ring....................................................28
What does waiting for a link loss to recover mean?.........................28
Switch Configuration Window – Port Priorities Page ....................................29
Choosing a Forwarding Policy .........................................................29
Adding Priority to Messages.............................................................29
Switch Configuration Window – Advanced Priorities Page...........................30
Customizing Tag Priority and Output Queue Assignment ...............30
Switch Configuration Window – Tag Mapping Page.....................................31
Switch Configuration Window – Mirroring Page............................................31
Performing Network Diagnostics......................................................31
Switch Configuration Window – OK Output Page.........................................32
Find All Switches Window .............................................................................33
Loading a Configuration into the Ring Switch................................................33
EOTec 2104 Switch Status Utility..................................................................34
Wink Switch Button........................................................................................34
Switch Status Window...................................................................................35
OK LED, OK Output ......................................................................................37
Power 1, Power 2..........................................................................................37
Ring Port LED................................................................................................37
Network Monitor Window...............................................................................38
Chapter 4 Ring Configurations ........................................39
Ring Setup and Operation.............................................................................39
Ring Application Tips.....................................................................................39
Why Use a Weed Ring Switch? ....................................................................40
Weed Ring Advantages over Spanning Trees and Other Schemes.............40
How a Weed Ring Operates without IP Addresses ......................................41
Configuring Rings in Your Ring Switch..........................................................41
Valid Ring Topologies....................................................................................42
Invalid Ring Topologies.................................................................................43
Unintended Rings Example...........................................................................44
Detailed Ring Examples................................................................................45
Implementing a Single Ring in a Long Distance Connection........................45
Implementing Two Rings with the EOTec 2104 Ring Switch........................48
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Chapter 5 Advanced Features of Switch Tools..............52
Copying a Base Configuration.......................................................................52
Output to File Window...................................................................................53
Updating Weed Ring Switch Firmware..........................................................54
If You Have Trouble Upgrading Firmware.....................................................54
Recovering an EOTec 2104 Ring Switch......................................................55
Prioritizing Your Network Traffic....................................................................55
Selecting a Priority Level...............................................................................56
Assigning Priority Tags..................................................................................56
Removing Priority Tags.................................................................................56
Port Priority Queues......................................................................................56
IP ToS Priority Example ................................................................................57
802.1p Priority ...............................................................................................58
Remote Status Monitoring.............................................................................58
Monitoring the Status of EOTec 2104 Ethernet Ring Switches.....................58
Modbus Options Window...............................................................................60
IP Address.....................................................................................................60
Network ID........................................................................................60
Host ID..............................................................................................60
Subnet Mask..................................................................................................60
Default Gateway............................................................................................62
Modbus Monitor Poll Time.............................................................................62
Modbus Diagnostics Example.......................................................................63
Scenario 1: No Breaks ..................................................................................63
Scenario 2: A Network Break........................................................................64
Chapter 6 Default Settings ...............................................65
Default Settings.............................................................................................65
Ring Ports......................................................................................................65
Port Configuration (all ports) .........................................................................65
Broadcast Limit..............................................................................................65
Port Mirroring.................................................................................................65
Priority Queuing.............................................................................................65
IEEE Tagging ................................................................................................66
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Chapter 7 General Features and Capabilities.................67
Ring Algorithm and Performance ..................................................................67
Master Switch Selection................................................................................67
EOTec 2104 Switch Tools.............................................................................68
Port Configuration..........................................................................................68
Fault Tolerant Rings......................................................................................68
General Features and Capabilities................................................................68
10BaseT and 100BaseTX Auto-detection.....................................................68
100BaseFX (Multimode and Single-mode) Fiber Optic Port.........................69
2K MAC Addresses with Automatic Learning, Aging, and Migration............69
3.2 Gbps Bandwidth......................................................................................69
Auto-crossover (Auto-MDI/MDIX) .................................................................69
Auto-polarity ..................................................................................................69
Automatic Power Saving...............................................................................69
Auto-sensing Speed and Flow Control..........................................................69
Backplane......................................................................................................69
Broadcast Storm Protection ..........................................................................70
Buffering........................................................................................................70
Flow Control ..................................................................................................70
Forwarding.....................................................................................................70
Full / Half Duplex Operation..........................................................................70
Illegal Frames................................................................................................70
IEEE 802.3 Compliant...................................................................................70
Latency..........................................................................................................70
Non-blocking..................................................................................................70
Port Mirroring.................................................................................................71
Plug and Play ................................................................................................71
Priority Queuing or Traffic Prioritization ........................................................71
Protocol Independent....................................................................................71
Appendix A Technical Specifications.................................72
Appendix B EOTec 2104 Product Series............................75
Appendix C Service Information.........................................76
Technical Support and Service......................................................................76
Index ........................................................................................77
vii

EOTec 2104 User Manual Introduction
1
Introduction
This manual describes how to use the EOTec 2104 Ethernet Ring Switch, an intelligent
Ethernet device switch specially designed for connecting Ethernet-enabled devices in
industrial field applications.
Ethernet is swiftly being adopted by the industrial automation and control industry.
Industrial applications often demand rugged, robust equipment that can provide high
reliability in settings far removed from a comfortable, climate-controlled office
environment. In addition, Ethernet gives the advantage of widespread usage and lower
costs due to high volumes.
Industrial Ethernet devices attached to a network usually cannot tell what is happening
elsewhere on the system. As a result, the responsibility for monitoring the network must
fall on the Ethernet communication equipment that connects these devices. Real-time
alarm messages are a vital feature to inform system administrators and operators when
a problem exists on the network.
Introducing the EOTec 2104 Ethernet Ring Switch
Fiber optic technology provides many advantages for industrial control applications.
These include EMI/RFI immunity, the ability to run fiber optic cable through hazardous
areas, and the ability to connect long distance communication links. Another benefit is
the ability to achieve media redundancy without incurring the cost of duplicate hardware
systems. By using the Weed Instrument Self-Healing Ring solution, a critical system can
achieve uninterrupted communications, even in the event of a failure in the fiber optic
communication lines.
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EOTec 2104 User Manual Introduction
The EOTec 2104 Ethernet Ring Switch is designed to give reliable operation in harsh
industrial environments. The product includes software to control maintenance and
monitoring of sophisticated networks. The ring switch can be used right out of the box
without configuration; or through some simple configuration steps, you can enable some
powerful managed switch features such as priority queuing for prioritizing your traffic,
message rate filtering for broadcast storm protection, and port mirroring for diagnostics.
In the Weed Ring Switch, messages are intelligently routed for the sake of increasing the
efficiency and reliability of your network. Unlike an Ethernet hub, the ring switch forwards
packets to specific ports to reduce unnecessary traffic on network paths, thus optimizing
network efficiency.
You can use the Weed Ring Switch in traditional star or daisy-chain topologies, or you
can use a ring topology that can take advantage of network path redundancy.
Ring topology is important in path redundancy because no matter where in the ring that
a path gets cut, all devices connected to a node in the ring can still communicate with
each other. In the following diagram, if the active path between two switches is disabled,
the backup path immediately takes over to maintain the integrity of your network.
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EOTec 2104 User Manual Introduction
Do not use conventional switches and hubs in a ring topology.
Conventional switches and hubs cannot be used in ring topologies because of broadcast
storms. Broadcast storms can bring a network to a stop if conventional switches or hubs
are being used in a ring topology because of broadcast message reproduction. Using
Weed Ring Switches in the loop will prevent broadcast storms because they have the
intelligence to detect loops and to assign the necessary ports to be in the backup
(disabled) state. These backup ports are instantly enabled if the primary path in their
respective ring fails.
Feature Overview
The EOTec 2104 Ethernet Ring Switch supports both 10BaseT (10 Mbps) and
100BaseTX (100 Mbps) on its RJ45 ports. Each of these ports independently auto-
senses the speed, allowing you to interface to either regular or fast Ethernet devices. All
models also have 100BaseFX (100 Mbps) fiber optic ports. Various EOTec 2104 models
support maximum fiber optic cable lengths from 2 km to 60 km. Appendix B, EOTec
2104 Product Series, includes more information on the different models.
An EOTec 2104 Ethernet Ring Switch has all the networking capability of a typical
unmanaged switch plus some advanced capability that you would find only in a
managed switch, including ring functionality. Like an unmanaged switch, the Weed Ring
Switch is plug and play, meaning that it can be used right out of the box without any user
configuration. This includes the ring functionality, which is already pre-configured in the
switch. This is suitable for most applications.
For advanced applications, you can use the EOTec 2104 Switch Tools (a Windows
software utility) to enable some advanced capabilities such as priority queuing for
prioritizing your traffic, message rate filtering for broadcast storm protection, and port
mirroring for diagnostics.
Important Note:Only use Weed Ring Switches when connecting switches in a ring.
Weed Ring Switches use a specialized high-speed ring algorithm that only they can
recognize. Otherwise, these ring switches are fully IEEE 802.3 compatible.
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EOTec 2104 User Manual Introduction
Optional Accessories
Contact your Weed sales representative to order any of these accessories.
•Port expansion modules
•Redundant power supplies
Model Input Power Requirements
2A06 85 to 240 VAC, 50/60 Hz
85 to 140 VDC, 250 mA
2A08 15 to 30 VDC @ 400 mA
2A16 85 to 240 VAC, 50/60 Hz
85 to 140 VDC, 250 mA
Alarm relay output indicates loss of supply output.
Appendix B, EOTec 2104 Product Series, includes information on the port expansion
modules and expansion modules, including their part numbers.
Advanced Industrial Ethernet Capability
•Message Rate Filtering (Broadcast Storm Protection)
Poorly configured applications and devices or malicious users can flood your
network with broadcast packets that are forwarded to all ports and can quickly
consume most of a network’s bandwidth. The EOTec 2104 Ethernet Ring Switch
protects against broadcast storms by limiting the quantity of broadcast and
multicast messages. This protection is enabled by default.
•Priority Queuing (Traffic Prioritization using QoS, CoS, ToS/DiffServ)
With priority queuing configured in the EOTec 2104 Ethernet Ring Switch, low-
priority data will not interfere with your time-critical data again. Network traffic can
be prioritized to achieve the performance that time-sensitive data demands.
Refer to the EOTec 2104 Switch Tools on-line help for more information and
details on configuring priority queuing.
•Port Mirroring
This advanced diagnostic capability allows messages from one or more ports to
be copied to another port. Then a port analyzer or sniffer program can be used to
monitor the traffic without affecting the operation of the switch. Configure the
Weed Ring Switch for port mirroring through the EOTec 2104 Switch Tools. See
the on-line help for details.
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EOTec 2104 User Manual Introduction
User-Friendly Configuration Tools
•EOTec 2104 Switch Tools utility
For advanced applications, you can use the EOTec 2104 Switch Tools (Windows
software utility) to enable some advanced capabilities such as priority queuing for
prioritizing your traffic, message rate filtering for broadcast storm protection, and
port mirroring for diagnostics. The utility features extensive online help, and is
described in Chapter 3, Introducing Switch Tools.
•Switch Status utility
The EOTec 2104 Switch Tools Status utility provides a view-only display of the
current operating status of EOTec 2104 Ring Switches connected to the
computer and running this software. Identification information of the ring switch,
status of each Ethernet port, and the operating status of any rings that are in use
are displayed. The operation of this utility is fully automatic, with the addressable
Weed Ring Switches found automatically by a network search. All EOTec 2104
Ring Switches detected on your Ethernet network are displayed in this status
window. For more information, refer to the EOTec 2104 Switch Status Utility
section in Chapter 3, Introducing Switch Tools.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
2
EOTec 2104 Ring Switch Hardware
This chapter describes the EOTec 2104 Ethernet Ring Switch, which is designed to give
reliable operation in harsh industrial environments.
Designed for Industrial Applications
•-40 to +85 °C operating temperature range
•Redundant, dual DC power inputs
•IP 30, rugged high-strength case
•DIN-rail mounting ability
•Rate limiting to prevent unpredictable network status
•Port mirroring for online debugging
•Automatic recovery of connected device IP address
•Line-swap fast recovery
EOTec 2104 Ring Switch Performance
These general specifications apply to the EOTec 2104 Ethernet Ring Switch. For
complete details, refer to Appendix A, Technical Specifications.
Specifications Summary
Ports 4
Port types 10/100BaseT(X) shielded RJ45;
100BaseFX (ST or SC connectors)
Ethernet switch type Intelligent store and forward, plus some
management capabilities
Ethernet protocols supported All IEEE 802.3
RJ45 operation Auto-negotiation, Auto-crossover and Auto-polarity
Fiber operation Multimode with distances up to 2 km, or single-
mode with distances up to 15 km, 40 km, or 60 km,
depending on the model.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
EOTec 2104 Ring Switch Power and Alarm Connections
Weed Ring Switches can be powered from the same DC source that is used to power
other Weed I/O devices. Weed Ring Switches are powered by +15 to +40 VDC. Power is
applied to the bottom connector as shown in the illustration on page 8.
Alternatively, you can connect an EOTec Power Supply Module to the backplane of the
EOTec 2104 Ethernet Ring Switch Module. The power supply module prevents possible
down time resulting from power loss, and is available in several models from Weed
Instrument.
Model Input Power Requirements
2A06 85 to 240 VAC, 50/60 Hz
85 to 140 VDC, 250 mA
2A08 15 to 30 VDC @ 400 mA
2A16 85 to 240 VAC, 50/60 Hz
85 to 140 VDC, 250 mA
Alarm relay output indicates loss of supply output.
Weed Ring Switches have three relay outputs that can be used to signal an error to a
PLC, PC or other supervisory devices. By default, these outputs are normally closed
when power input is present and there are no ring errors. All outputs will open if power
input fails. The Global Ring relay opens if a ring break is detected. The two Local Ring
relays open when their respective ring ports lose a link.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
OK Output Alarm (Global Alarm Relay)
All EOTec 2104 Ethernet Ring Switch models have an OK output alarm.
The OK output alarm normally is activated if any of the user-configurable alarm
conditions occurs, such as a loss of primary DC power or a communication failure in the
ring port(s). You can configure the functionality of this alarm using the EOTec 2104
Switch Tools utility.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
Switch Layout
The Weed Ring Switch has communication LEDs for each port and a power LED. In
addition, three LEDs (OK, A1 and A2) provide switch and network status.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
EOTec 2104 Ring Switch LEDs
This section describes the functionality of the LEDs on the EOTec 2104 Ethernet Ring
Switch.
LED Function Description
ON Power Power ON – On solid green when power is applied.
LED will turn off if the power supply fails.
Switch
Status Global Ring Status – Indicates the operational status.
Solid
Green GRN-ring OK – The ring has continuous ring integrity. No errors.
Solid Red Error – This switch has encountered a segment failure on any active
rings where this switch is a member (Global Ring Alarm).
Blinking
Red Long OFF, short red ON – If the OK LED is OFF for about 1.9
seconds and ON for 0.1 second, an internal error has occurred in the
unit. Cycle power or reset the switch from the configuration utility to
clear this error.
The OK LED can blink green at different rates.
Continuous rapid green blinking – To verify communication and
target switch selection, you can request the switch to “wink” its OK
LED to visually identify the unit.
OK
Blinking
Green
Rapid green blinking, with a single short pause – Blinks rapidly for
about 5 seconds and then pauses for about 1 second.
•On power-up
•When loading firmware
•When resetting the switch
Fiber Ports Indicates status of the fiber optic port connections.
Solid
Green ON-connected – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, but no communications activity
is detected.
Blinking
Green BLINK-activity – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, and there is communications
activity.
F1, F2
OFF
Completely A proper Ethernet connection (Link) does not exist between the port and another Ethernet device.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
LED Function Description
Backplane Indicates status of the Ethernet backplane port connections.
Solid
Green ON-connected – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, but no communications activity
is detected.
Blinking
Green BLINK-activity – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, and there is communications
activity.
BP
OFF
Completely A proper Ethernet connection (Link) does not exist between the port and another Ethernet device.
Ring
Status Indicates the status of your local ring connections.
Solid
Green GRN-normal – Its associated ring port is active and has a good link
status.
Solid Red When both A1 and A2 are solid red, both ring ports have lost
communication and the ring switch will not be able to communicate
with other switches in the ring.
Blinking
Red BLINK RED-ring port failure – A break has been discovered for its
associated ring port. The break is at this location. Diagnostically
speaking; in simple rings, the segment with the problem will be
between the two switches with their ring port LEDs in the blink state.
Also, you can ascertain the general location of where the segment
error has occurred with a HMI, a master controller, or some other
MODBUS Master through MODBUS/UDP polling.
A1, A2
OFF
Completely The switch has not been configured for any rings.
Copper
Ports Each RJ45 copper port has Activity and Link LEDs.
Green LED Off: No link detected.
On: Link detected but no activity.
Flash: Activity at either 10 Mbps or 100 Mbps.
ACT/LNK
Yellow
LED Off: Only 10 Mbps (10BaseT) connection is detected or no link
detected.
On: 100 Mbps (100BaseTX) connection is detected.
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EOTec 2104 User Manual EOTec 2104 Ring Switch Hardware
Ethernet and Fiber Optic Wiring
Weed Ring Switches provide Ethernet and fiber connections to devices on the factory
floor through star, daisy-chain, or ring topology. When wiring Weed Ring Switches in a
ring topology, it is important to use only Weed Ring Switches for each node in the ring.
With proper ring wiring, all nodes in the ring can maintain the same data connectivity
should a path in the ring be cut.
RJ45 Wiring Guidelines
Use data-quality (not voice-quality) twisted-pair cable rated category 5 or higher with
standard RJ45 connectors. For best performance, use shielded cable. Straight-through
or crossover category 5 cable can be used regardless of the type of device connected to
the EOTec 2104 Ethernet Ring Switch. This is because the Weed Ring Switch supports
auto-MDI/MDIX-crossover.
Ethernet Fiber Wiring Guidelines
The EOTec 2104 Ethernet Ring Switch also has a pair of multimode or single-mode fiber
ports.
•For multimode, the maximum segment length is 2 km.
•Single-mode models can support maximum segment lengths of 15 km, 40 km, or
60 km.
Each fiber optic port on the switch is comprised of a pair of ST or SC connectors. For
each fiber port there is a Transmit (TX) and Receive (RX) signal. When making your
fiber optic connections, ensure that the Transmit (TX) port of the first switch connects to
the Receive (RX) port of the second device, and the RX port of the first switch connects
to the TX port of the second device. Fiber optic cables with color-coded ST or SC
connectors are recommended because it is easier to ensure you connect one end to TX
and the other end to RX.
The ACT/LNK LED is ON solid when you have made a proper connection.
12

EOTec 2104 User Manual Introducing Switch Tools
3
Introducing Switch Tools
Because the Weed Ring Switch is ready to use right out of the box, many users will not
need to use the EOTec 2104 Switch Tools configuration software. By default, ports 1
and 2 are preconfigured as ring ports. If the default settings are suitable for your system,
you can skip this chapter entirely.
For those of you who are ready to become power users of this ring switch through
custom port settings, ring configurations, message filtering, port mirroring, and priority
queuing, read on!
By using the EOTec 2104 Switch Tools utility, you can customize each Weed Ring
Switch to fit your application and take advantage of the built-in capabilities listed below.
Administration You can enable or disable individual ports. Each port can be
set to auto-negotiate Ethernet speed or the port can be
assigned a fixed configuration that is compatible with the
device(s) that will be connected to the port.
Ring Configuration You have the ability to configure zero, one or two rings on a
Weed Ring Switch.
Priorities You can configure how the Weed Ring Switch assigns,
removes, and handles message priority for each port.
Port Mirroring You can configure port mirroring, where diagnostic
messages from one or more ports can be copied to a single
port for monitoring purposes.
Modbus Monitoring Use Modbus Ethernet commands to monitor communication
and DC power status within each Weed Ring Switch.
Loading the EOTec 2104 Software
This section describes the process of installing the contents of your EOTec 2104 CD.
The CD contains the following items:
•EOTec 2104 Switch Tools utility
•EOTec 2104 Switch Status utility
•EOTec 2104 User Manual (PDF)
•EOTec 2104 Installation Guide (PDF)
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