Advantech EKI-2728I User manual

User Manual
EKI-2728I
8-port Industrial Unmanaged
Gigabit Ethernet Switch

EKI-2728I User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2006
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgements
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandize
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Edition 1
January 2011

iii EKI-2728I User Manual
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of shielded cables. This
kind of cable is available from Advantech. Please contact your local supplier for
ordering information.
CE
This product has passed the CE test for environmental specifications. Test conditions
for passing included the equipment being operated within an industrial enclosure. In
order to protect the product from being damaged by ESD (Electrostatic Discharge)
and EMI leakage, we strongly recommend the use of CE-compliant industrial enclo-
sure products.
FCC Class A
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
Technical Support and Assistance
1. Visit the Advantech web site at www.advantech.com/support where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
–Product name and serial number
–Description of your peripheral attachments
–Description of your software (operating system, version, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this User Manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Use a damp
cloth. Do not use liquid or spray detergents for cleaning.
4. For plug-in equipment, the power outlet socket must be located near the equip-
ment and must be easily accessible.
5. Keep this equipment away from humidity.

EKI-2728I User Manual iv
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage by transient overvoltage.
12. Never pour any liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If one of the following situations arises, get the equipment checked by service
personnel:
–The power cord or plug is damaged.
–Liquid has penetrated into the equipment.
–The equipment has been exposed to moisture.
–The equipment does not work well, or you cannot get it to work according to
the user's manual.
–The equipment has been dropped and damaged.
–The equipment has obvious signs of breakage.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY GO BELOW -20° C (-4° F) OR ABOVE 60° C
(140° F). THIS COULD DAMAGE THE EQUIPMENT. THE EQUIPMENT
SHOULD BE IN A CONTROLLED ENVIRONMENT.
16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
17. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.
Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
To avoid electrical shock, always disconnect the power from your PC chassis
before you work on it. Don't touch any components on the CPU card or other
cards while the PC is on.
Disconnect power before making any configuration changes. The sudden rush
of power as you connect a jumper or install a card may damage sensitive elec-
tronic components.

v EKI-2728I User Manual
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ............................................................................................... 2
1.1.1 High-Speed Transmissions........................................................... 2
1.1.2 Dual Power Inputs......................................................................... 2
1.1.3 Flexible Mounting.......................................................................... 2
1.1.4 Wide Operating Temperature ....................................................... 2
1.1.5 Easy Troubleshooting ................................................................... 2
1.2 Features .................................................................................................... 2
1.3 Specifications ............................................................................................ 3
Chapter 2 Installation............................................5
2.1 LED Indicators........................................................................................... 6
Table 2.1: EKI-2728I LED Definition........................................... 6
2.2 Dimensions (units: mm) ............................................................................ 6
Figure 2.1 EKI-2728I Dimensions................................................ 6
2.3 Mounting ................................................................................................... 7
2.3.1 Wall mounting ............................................................................... 7
Figure 2.2 Combining the Metal Mounting Kit.............................. 7
2.3.2 DIN-rail Mounting .......................................................................... 8
Figure 2.3 DIN-rail Installation Step 1.......................................... 8
Figure 2.4 DIN-rail Installation Step 2.......................................... 8
2.4 Network Connection.................................................................................. 9
2.5 Power Connection..................................................................................... 9
Figure 2.5 Power Connector........................................................ 9
Chapter 3 Troubleshooting ................................11
3.1 Troubleshooting ...................................................................................... 12
3.1.1 Power Input................................................................................. 12
3.1.2 Cable........................................................................................... 12
3.1.3 Diagnosing LED Indicators ......................................................... 12
Appendix A Pin Assignments & Wiring................13
A.1 Pin Assignments & Wiring....................................................................... 14
Figure A.1 RJ-45 Pin Assignments ............................................ 14
Figure A.2 EIA/TIA-568B............................................................ 14
Figure A.3 EIA/TIA-568A............................................................ 14

EKI-2728I User Manual vi

Chapter 1
1Overview

EKI-2728I User Manual 2
1.1 Introduction
The EKI-2728I is a full industrial Gigabit Ethernet switch. Featuring 8 x 10/100/
1000Base-TX ports, EKI-2728I is designed not only to handle data intensive
applications, but also featuring the "Jumbo Frames" function with an MTU (Maximum
Transmission Unit) up to 9720 bytes in one frame, the switch can handle voice,
video, and even large multimedia transmissions at Gigabit high speeds.
1.1.1 High-Speed Transmissions
The EKI-2728I includes a switch controller that can automatically sense transmission
speeds (10/100/1000 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.
1.1.2 Dual Power Inputs
EKI-2728I redundant power input design is with power reverse protection to prevent
the switching device broken by wrong power wiring. When one of power inputs fails,
P-Fail LED will turn on and the relay output changes status for warning applications.
1.1.3 Flexible Mounting
EKI-2728I is extremely compact (37 x 140 x 95 mm) and can be mounted on a DIN-
rail or a panel, so it is suitable for any space-constrained environments.
1.1.4 Wide Operating Temperature
The operating temperature of the EKI-2728I is between -40 ~ 75° C. With such a
wide range, you can use it 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-T port has 2
LED indicators that display the link status, transmission speed and collision status.
Also the system indicators P1, P2 and P-Fail help diagnose the switch immediately.
1.2 Features
Provides 8 x 10/100/1000Base-T Mbps Ethernet ports
Store-and-Forward switching architecture
Back-plane (switching fabric): 16Gbps
Third-generation Broadcom switch with AV function
–Guaranteed latency
–Guaranteed BW
–Synchronous timing
Provides 192Kbits memory buffer
4K-entry MAC address table
9720 bytes jumbo frame
Supports full/half duplex flow control
Supports broadcast storm protection
Supports MDI/MDI-X auto-crossover
Supports redundant +12 ~ 48 VDC power input
Provides flexible mounting: DIN-rail, Panel Mounting
Supports operating temperatures from -40 ~ 75ºC

3 EKI-2728I User Manual
Chapter 1 Overview
1.3 Specifications
Communications
Compatibility: IEEE 802.3, 802.3u, 802.3ab, 802.3x
LAN: 10/100/1000Base-T
Backplane (Switching Fabric): 16 Gbps
Packet Throughput (Full-duplex): 23.8Mpps @ 64bytes
Transmission Distance: Up to 100 m
Transmission Speed: Up to 1000 Mbps
Broadcast Storm Rate Limit: 250,000 pps (default)
Interface
Connectors:
–8 x RJ-45 (8-port 10/100/1000TX)
–6-pin removable screw terminal (power & relay)
LED Indicators:
–Unit: P1, P2, Fault
–Ethernet port: Link/Active (100Mbps)
–Speed (1000Mbps)
Power
Power Consumption
–5.28W
Power Input: 2 x Unregulated +12 ~ 48 VDC
Relay Output: 1 Relay Output
Mechanism
Dimensions (WxHxD): 36.6 x 140 x 95 mm
Enclosure: IP-30, Metal shell with solid mounting kits
Mounting:DIN-rail, Wall
Environment
Operating Temperature: -40 ~ 75° C
Operating Humidity: 5~95% (non-condensing)
Storage Temperature: -40 ~ 85° C

EKI-2728I User Manual 4
Certifications
Safety: CE EN60950-1
Hazardous Location: UL/cUL Class I, Division 2, Groups A, B, C and D
EMC: FCC Class A,
–CE EN61000-4-2 (ESD)
–CE EN61000-4-3 (RS)
–CE EN61000-4-4 (EFT)
–CE EN61000-4-5 (Surge)
–CE EN61000-4-6 (CS)
–CE EN61000-4-8
–CE EN61000-4-11
–CE EN61000-4-12
–CE EN61000-6-2
–CE EN61000-6-4
Free Fall: IEC60068-2-32
Shock: IEC60068-2-27
Vibration: IEC60068-2-6
Packing List
1 x EKI-2728I Industrial 8-port Unmanaged Gigabit Ethernet Switch
1 x Industrial Communication CD-ROM with software, and User manual
2 x Wall Mounting Bracket and Screws
1 x DIN-rail Mounting Bracket and Screws
1 x EKI-2728I Startup Manual
1 x DC Jack Cable 2.0/150mm

Chapter 2
2Installation

EKI-2728I User Manual 6
2.1 LED Indicators
The LED indicators located on the front panel display the power status and network
status of EKI-2728I. Each of them has its own specific meaning as the tabke shown
below.
2.2 Dimensions (units: mm)
Figure 2.1 EKI-2728I Dimensions
Table 2.1: EKI-2728I LED Definition
LED Color Description
P1 Green On Power input 1 is active
Off Power input 1 is inactive
P2 Green On Power input 2 is active
Off Power input 2 is inactive
P-Fail Red On Power failure occurs
Off Power input 1 and 2 are both active, or no power
input
1 ~ 8 (Upper LED) Green On Connected to network
Flashing Networking is active
Off Not connected to network
1 ~ 8 (Upper LED) Green On 1000Mbps
Off Not connected to network or not working at speed of
1000Mbps

7 EKI-2728I User Manual
Chapter 2 Installation
2.3 Mounting
The EKI-2728I supports two mounting methods: DIN-rail & Wall.
2.3.1 Wall mounting
EKI-2728I can be wall-mounted by using the included mounting kit. Then, hang on
the EKI-2728I to the nails on the wall.
First, use the screws included in the package to combine the EKI-2728I and metal
mounting kit. And then you can install the device firmly via the components, please
see Figure 2.5 as below.
Figure 2.2 Combining the Metal Mounting Kit

EKI-2728I User Manual 8
2.3.2 DIN-rail Mounting
You can also mount EKI-2728I on a standard DIN-rail by the steps as followsFirst,
hang the EKI-2728I over the DIN-rail with angle of inclination.
Figure 2.3 DIN-rail Installation Step 1
Then, let the device drop down straight to slide over the rail smoothly.
Figure 2.4 DIN-rail Installation Step 2
Note! The DIN-rail clip is screwed on the industrial switch when out of factory.
If the DIN-rail clip is not screwed on the industrial switch, please screw
the DIN-rail clip on the switch first.

9 EKI-2728I User Manual
Chapter 2 Installation
2.4 Network Connection
The EKI-2728I has 8 x RJ-45 ports that support connection to 10 Mbps Ethernet, 100
Mbps Fast Ethernet, or 1000 Mbps Gigabit Ethernet, and half or full duplex operation.
EKI-2728I can be connected to other hubs/switches through the twisted-pair straight-
through cable or the crossover cable up to 100m long. The connection can be made
from any TX port of the EKI-2728I (MDI-X) to another hub or switch either MDI-X or
uplink MDI port.
The EKI-2728I 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-2728I supports dual +12 ~ 48 VDC power inputs and power-fail relay output.
Figure 2.5 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-2728I User Manual 10

Chapter 3
3Troubleshooting

EKI-2728I User Manual 12
3.1 Troubleshooting
3.1.1 Power Input
Verify you are using the included or appropriate power cord/adapter. Please don’t
use the power adaptor with DC output voltage higher than power rating of the device.
Otherwise it will burn down.
3.1.2 Cable
Select the proper UTP cable to construct the network. Please check the cable being
used. Prepare Unshielded Twisted-Pair (UTP) or Shielded Twisted-Pair (STP) cable
for RJ-45 connections: 100 Category 3, 4 or 5 cable for 10 Mbps connections or 100
Category 5 cable for 100 Mbps connections. Also, be sure that the length of any
twisted-pair connection does not exceed 100 meters (328 feet).
Otherwise, use the 50/125 ~ 62.5µm fiber cable to connect the fiber port in multi-
mode.
3.1.3 Diagnosing LED Indicators
The switch can be easily monitored through LED indicators to assist in identifying
common problems users may encounter and where users can find possible
solutions.
If the power indicator does not light up when the power cord is plugged in, users may
have a problem with power cord. Then check for loose power connections, power
losses or surges at power outlet. If users still cannot resolve the problem, contact the
local dealer for assistance.
If the Industrial switch LED indicators are normal and the connected cables are
correct but the packets still cannot transmit, please check your system’s Ethernet
devices configuration or status.

Appendix A
APin Assignments &
Wiring

EKI-2728I User Manual 14
A.1 Pin Assignments & Wiring
It is suggested to adopt ELA/TIA as the wiring of the RJ-45.
Figure A.1 RJ-45 Pin Assignments
Figure A.2 EIA/TIA-568B
Figure A.3 EIA/TIA-568A