B&B Electronics EKI-1352 User Manual
User Manual
EKI-1351/1352
1/2-port RS-232/422/485 to
802.11b/g WLAN Serial Device
Servers
Copyright
The documentation and the software included with this product are copyrighted 2008
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. However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements 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 purchase.
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 defective, it will be repaired or replaced at no charge during the warranty period. For outof-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.
Part No. 2003135101 Edition 2
Printed in Taiwan January 2009
EKI-1351/1352 User Manual ii
Declaration of Conformity
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 enclosure products.
FCC Class B
Note: 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.
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.
iii EKI-1351/1352 User Manual
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 electronic components.
EKI-1351/1352 User Manual iv
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ............................................................................................... 2
1.2 Features .................................................................................................... 3
1.3 Specifications ............................................................................................ 3
1.4 Package Check List .................................................................................. 4
Chapter 2 Getting Started.....................................5
2.1 Understanding EKI-1351/1352.................................................................. 6
2.1.1 Product Description....................................................................... 6
Figure 2.1 Wireless LAN Connections......................................... 6
2.1.2 COM Port Redirector (Virtual COM Port)...................................... 7
Figure 2.2 COM Port Redirector .................................................. 7
Figure 2.3 Multi-Access Mode ..................................................... 8
2.1.3 TCP Server Mode ......................................................................... 9
Figure 2.4 TCP Server Mode....................................................... 9
2.1.4 TCP Client Mode........................................................................... 9
Figure 2.5 TCP Client Mode ........................................................ 9
2.1.5 Serial Tunneling Mode ................................................................ 10
Figure 2.6 Serial Tunneling Mode.............................................. 10
2.1.6 UDP Server/Client Mode............................................................. 10
2.1.7 Control Mode .............................................................................. 10
2.2 Hardware................................................................................................. 11
2.2.1 LED Indicators ............................................................................ 11
Table 2.1: EKI-1351/1352 LED Indicators ................................. 11
2.2.2 Dimensions (Units: mm).............................................................. 12
Figure 2.7 Front View of EKI-1351/1352 ................................... 12
Figure 2.8 Side View of EKI-1351/1352..................................... 12
Figure 2.9 Back View of EKI-1351/1352.................................... 13
Figure 2.10Top View of EKI-1351/1352...................................... 13
2.3 Connecting Hardware ............................................................................. 14
2.3.1 Choosing the Location ................................................................ 14
2.3.2 Panel/Wall Mounting ................................................................... 14
Figure 2.11Combine the Metal Mounting Kit .............................. 14
2.3.3 DIN-rail Mounting ........................................................................ 15
Figure 2.12DIN-rail Step 1 .......................................................... 15
Figure 2.13DIN-rail Step 2 .......................................................... 15
2.3.4 Switch Settings ........................................................................... 16
Table 2.2: Default Settings of Diagnostic Mode ........................ 16
2.3.5 Wireless Connection ................................................................... 17
2.3.6 Power Connection....................................................................... 17
Figure 2.14Power Connector ...................................................... 17
2.3.7 Serial Connection........................................................................ 18
Table 2.3: EKI-1351/1352 Serial Pin Assignments.................... 18
2.4 Serial Device Server Configuration Utility ............................................... 18
Chapter 3 Configuration .....................................21
3.1 Configuration Utility Overview ................................................................. 22
3.2 Discovering Serial Device Servers.......................................................... 23
3.2.1 Auto Searching ........................................................................... 23
3.2.2 Clear Device List and Search Again ........................................... 26
3.2.3 Manual Appending ...................................................................... 26
v EKI-1351/1352 User Manual
3.3 Network Settings..................................................................................... 27
3.3.1 Wireless Basics .......................................................................... 29
3.3.2 Wireless Authentication .............................................................. 32
3.3.3 Wireless Advanced ..................................................................... 34
3.4 Serial Settings......................................................................................... 35
3.4.1 Setting Serial Port Parameters ................................................... 36
3.4.2 Setting Virtual COM Operating Mode Parameters...................... 37
3.4.3 Setting TCP/UDP Server/Client Operating Mode Parameters.... 39
3.4.4 Setting Control Operating Mode Parameters.............................. 41
Table 3.1: AT Commands List ................................................... 42
3.4.5 Advanced Setting........................................................................ 43
3.5 Security Configuration............................................................................. 44
3.5.1 Accessible Function.................................................................... 44
3.5.2 Port Monitor ................................................................................ 45
3.6 Fulfilling Administrator Functions ............................................................ 45
3.6.1 Import/Export Serial Port Setting ................................................ 46
3.6.2 Locate Serial Device................................................................... 46
3.6.3 Lock Device ................................................................................ 47
3.6.4 Restore to Factory Default Settings............................................ 47
3.6.5 Upgrading the Firmware ............................................................. 48
Chapter 4 Setting COM Redirector ................... 51
4.1 Setting COM Redirector(Virtual COM port)............................................. 52
4.1.1 Auto Mapping.............................................................................. 52
4.1.2 Manual Mapping ......................................................................... 54
4.1.3 Manual Direct Mapping Virtual COM Port................................... 56
4.1.4 Remove the Virtual COM Port .................................................... 56
4.2 Running Diagnostic Test......................................................................... 57
Chapter 5 Web-Based Configuration................ 59
5.1 Overview ................................................................................................. 60
5.2 Accessing the Web Page........................................................................ 60
5.3 System .................................................................................................... 62
5.4 Network Configuration ............................................................................ 62
5.5 Port Configuration ................................................................................... 63
5.6 Change Password................................................................................... 64
5.7 Reboot .................................................................................................... 65
Appendix A Quick Start......................................... 67
A.1 Diagnostic Ad hoc Mode ......................................................................... 68
A.2 Diagnostic Infrastructure Mode ............................................................... 69
EKI-1351/1352 User Manual vi
Chapter 1
1 Overview
1.1 Introduction
Advantech's EKI-1300 series of Industrial Device Servers are a robust, feature-rich,
and cost effective way to network-enable equipment in an industrial automation environment. The EKI-1351/1352 provides one or two serial ports, 802.11b/g wireless
LAN interface to connect any RS-232/422/485 devices to wireless LAN. These wireless serial device servers provide serial-to-wireless network connectivity as an alternative to wired Ethernet connectivity and enable virtually any serial device or
equipment to be remotely accessed, controlled, monitored, or shared on an 802.11b/
g wireless network.
By encapsulating serial data and transporting it over Ethernet, the EKI-1351/1352
allows virtual serial links over Ethernet and IP (TCP/IP, UDP/IP networks. After
Advantech Serial Device Server Configuration Utility installation, standard serial
operation calls are transparently redirected to the serial device servers, guaranteeing
compatibility with legacy serial devices and enabling backward compatibility with
existing software. EKI-1351/1352 also supports serial tunneling, allowing two native
serial devices to communicate over a network without any hosts and programming.
As a result, you can extend limited distance, point-to-point, direct serial connections
within the plant, throughout the factory, the facility, the office building, or across the
global enterprise.
The EKI-135/1352 provides an impressive list of features and functions enabling multiple industrial devices to be connected, controlled, configured, managed, and
updated over a network. With serial ports and 802.11b/g wireless LAN, the EKI-1351/
1352 can easily connects multiple serial devices to a network.
The transmission speed of the EKI-1351/1352 is up to 921.6 Kbps totally outstripping
the competition to meet the demand for high-speed exchange. Functionally transparent and efficient, the EKI-1351/1352 is especially designed for remotely controlling
and monitoring devices via the Internet.
Type of supported devices:
Human Machine Interface (HMI)
Programmable Controller (PLC)
Flow meters
Temperature / pressure monitoring equipment
Gas leak detection device
Scales
Power monitoring equipment
Data Acquisition Modules
EKI-1351/1352 provides various TCP/UDP operations: COM port redirection (Virtual
COM port), TCP server/ client and UDP mode. Serial devices can be connected
by means of multi-access modes.
EKI-1351/1352 User Manual 2
1.2 Features
Expand up 255 serial ports for one Windows 2000/XP/Vista (x86) host
Link any serial device to an IEEE 802.11 b/g network
Supports wireless LAN Ad-Hoc and Infrastructure modes
Supports high transmission speed up to 921.6 kbps
Supports various operation mode: COM port redirection (Virtual COM), TCP
server/client, UDP mode, and Pair Connection
Supports LED indicators: easy to diagnose
Supports integrated Configuration Utility and Port-Mapping Utility: easy to config-
ure and manage 255 COM ports and self-diagnosis
Supports multi-access: allows a max. of 5 hosts to access one serial port
A max of 4 hosts can be accessed in TCP client and command response mode
Mounts on DIN-rail, or panel easily
15 KV ESD protection for all signals
Supports DHCP protocol
1.3 Specifications
WLAN Interface
Standard Compliance: IEEE 802.11 b and IEEE 802.11g
Network Mode: Infrastructure, Ad-Hoc
Free Space Range: Outdoor 100m (external antenna with average gain: -2dBi)
Antenna Connector: Reverse SMA
Wireless Security: WEP 64-bit/128-bit data encryption
Chapter 1 Overview
Serial Interface
Interface: RS-232/422/485, software selectable
No. of Ports:
– EKI-1351: 1
– EKI-1352: 2
Port Connector: DB9 male
Baud Rate: 50 bps to 921.6 Kbps
Parity: None, Even, Odd, Space, Mark
Data bits: 5, 6, 7, 8
Stop bits: 1, 1.5, 2
Flow control: RTS/CTS, XON/XOFF, DTR/DSR
Signals:
– RS-232: TxD, RxD, CTS, RTS, DTR, DSR, DCD, RI, GND
– RS-422: TxD+, TxD-, RxD+, RxD-, GND
– RS-485: Data+, Data-, GND
Protection: 15 KV ESD for all signals
3 EKI-1351/1352 User Manual
Software
Utility: Advantech Serial Device Server Configuration Utility
Driver support: Windows 2000/XP/Vista(x86)
Operation Mode:
– COM port redirection (Virtual COM)
– TCP/UDP server (polling) mode
– TCP/UDP client (event handling) mode
– Pair connection mode
Configuration: Web interface, Windows utility
Protocol: ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, HTTP, DNS, ARP
General
LED indicators:
– System: Power, System Status
– WLAN: Signal Strength, Link/Active
– Serial: Tx, Rx
Power
Power input: 12 to 48 VDC x 2
Power connector: Terminal block
Power Consumption:
– EKI-1351: 3.5W
– EKI-1352: 4W
Environmental
Operation Temperature: 0 to 50°C (32 to 122°F)
Storage Temperature: -20 to 80°C (-4 to 176°F)
Operating Humidity: 5 to 95% RH
Regulatory Approvals
EMC: CE, FCC Part 15 Subpart B (Class A)
Safety: UL (UL60950-1), Class 1, Div II (pending)
1.4 Package Check List
1 x EKI-1351/1352 WLAN serial device server
1 x RS-232 loopback DB9 tester
Panel mounting bracket
CD-ROM for utility and manual
EMI Dia. 7.8mm/L82mm Wireless LAN Antenna
EKI-1351/1352 User Manual 4
Chapter 2
2 Getting Started
2.1 Understanding EKI-1351/1352
The EKI-1351/1352 is network-based, serial device server for connecting
RS-232/422/485 devices, such as CNCs, PLCs, scales, and scanners, directly to a
TCP/IP network. Once connected through EKI-1351/1352, serial device will be able
to send and receive data on a network like any other network device. It extends traditional COM ports of a PC with access over a TCP/IP network. Through networking,
you can control monitor remote serial devices either over a LAN or over the WAN.
Since the EKI-1351/1352 is connected through a TCP/IP network, you might need to
know some basic facts about networking in order to get the server hooked up correctly.
2.1.1 Product Description
The EKI-1351/1352 is designed to network-enable any RS-232/422/485 serial
devices and provides industry-grade hardware and easy-to-use software to make
connecting serial devices to an Ethernet network a surprisingly simple process.
These units immediately upgrade your existing serial devices for integration into the
Internet world. The EKI-1351/1352 features a lot of powerful functions such as: high
speed data transfer, access-control, auto-detection of all EKI series products, remote
connection from different network domain, remote firmware download, and more.
After the simple installation steps to attach your network and serial device to the
appropriate connectors on the serial device servers and driver installation, you will
then be able to communicate with the serial devices via its own application software
and with the EKI serial device server. COM port redirector, TCP server mode, TCP
client mode, UDP server mode, UDP client mode and Control mode are all different
schemes to make a serial connection across using one or more Serial device server.
EKI-1351/1352 has 802.11b/g transceiver in addition to its serial and Ethernet ports.
Each serial port is connected to the serial communication port of a device. The wireless transceiver connects to another wireless device or to an Access Point (AP).
Figure 2.1 Wireless LAN Connections
EKI-1351/1352 User Manual 6
2.1.2 COM Port Redirector (Virtual COM Port)
Advantech Serial Device Server Configuration Utility is a serial COM port redirector
that creates virtual COM ports and provides access to serial device connected to
Advantech serial device server. You can configure the serial device server and
enable the Virtual COM port using one integrated utility. Advantech Serial Device
Server Configuration Utility allows you to configure Microsoft applications to
communicate with network enabled serial device servers as easily as if they were
physically installed in or directly connected on the PC.
The Advantech redirector can create up to 255 virtual COM ports. Application on the
host can open virtual COM port to access the serial device servers at the same time.
The redirector will handle each active virtual COM port as a separate TCP
connection to Advantech serial device servers.
Chapter 2 Getting Started
2.1.2.1 Normal Mode
The Advantech redirector connects the Advantech serial device servers while an
application open the COM port and disconnects from the Advantech serial device
servers when the application closes the COM port. The redirector uses TCP network
connections to the Advantech serial device server to gain the access to the
connected serial devices.
Figure 2.2 COM Port Redirector
7 EKI-1351/1352 User Manual
2.1.2.2 Multi-Access Mode (Shared COM port mode)
Most of serial devices are connected directly and physically to the PC serial ports via
a cable. The operation system, ex. Windows XP, provides the COM ports that user’s
application can access, and control the serial device through the serial cable. This
means that the serial device can be connected to one host and only one application
on this host can handle input, output and control operation on this device.
If you want to run more than one applications to use a serial device, you can employ
EKI serial device servers that provide a virtual COM port for a host or multi-hosts on
an Ethernet network. EKI serial device server is located between hosts and serial
devices. Each serial port on the EKI serial device server can allow max. of five host
connections through 802.11b or 802.11g WLAN. There are two major operation
modes for Multi-Access Mode. First one is broadcast mode; EKI serial device server
handles a command from one application and replies the data from the serial port to
all applications that are connecting this serial port. Another one is polling mode; EKI
serial device server handles the command from one application and reply to this
application only. Query from other applications must be queued and wait for current
process completing.
Figure 2.3 Multi-Access Mode
By using a serial derive server to share serial device, you eliminate the separate
serial lines and serial devices that can be attached to individual hosts. Collecting the
data from these serial devices become more easily and more effectively.
EKI-1351/1352 User Manual 8
2.1.3 TCP Server Mode
In TCP server mode, you might initiate the TCP connection from host to EKI serial
device server. This operation mode support max. five simultaneous connections for
each serial port on EKI serial device server from one host or several hosts, however
multi-hosts collect the data from one serial port at the same time
Chapter 2 Getting Started
2.1.4 TCP Client Mode
In TCP Client mode, the TCP connection will be established from EKI serial device
server. This operation mode supports maximum four simultaneous connections for
each serial port on EKI-1351/1352 to one host or several hosts. You should configure
the IP address and TCP port number of the network hosts which the EKI serial device
server connect to using Advantech Serial Device Server Configuration Utility. After
configuration, when EKI serial device server receives the data from serial port, the
device server will employ the connection to hosts which are configured.
Figure 2.4 TCP Server Mode
Figure 2.5 TCP Client Mode
9 EKI-1351/1352 User Manual
2.1.5 Serial Tunneling Mode
Two native serial devices can communicate over an Ethernet network without any
intermediate host PC and software programming. Serial Tunneling is very simple to
use. You can use Advantech Serial Device Server Configuration Utility to designate
one serial port as the tunneling master and another serial device server port as the
tunneling slave.
Figure 2.6 Serial Tunneling Mode
2.1.6 UDP Server/Client Mode
UDP is used primarily for broadcasting messages over a network. In the UDP server
mode, EKI-1351/1352 access max. of 8 hosts’ UDP message. In the UDP client
mode, EKI serial device servers transmit UDP message to max. of 4 hosts
simultaneously.
2.1.7 Control Mode
In controlling mode, the EKI serial device server presents a modem interface to the
attached serial device: it accepts AT-style modem commands to connect / disconnect
to other networking device. If you want serial device running application program to
connect/disconnect to different devices by request, you can use controlling mode.
The controlling mode provides three kinds of modem AT-style commands. The serial
devices can use these commands to control EKI-1351/1352 connecting or disconnecting to remote networking devices. Thus intelligent serial devices such as standalone PLC will send /receive data to/from devices one by one via Ethernet.
EKI-1351/1352 User Manual 10
2.2 Hardware
In this section, we will give you an overview of EKI-1351/1352 hardware and
installation.
2.2.1 LED Indicators
There are LEDs display the power status, network status, and serial communication
status located on the front panel of EKI-1351 and EKI-1352, each of them has its own
specific meaning as below.
Table 2.1: EKI-1351/1352 LED Indicators
LED Name LED Color LED Description
P1 Green Power 1 is on.
Off Power 1 is off, or power error condition exists.
P2 Green Power 2 is on.
Off Power 2 is off, or power error condition exists.
Status Orange Blinking: System is ready.
Off System is not working.
WLAN
Signal
Strength
Fail Off WLAN module OK.
Link/Active Off There is no link between EKI and wireless AP.
Serial Orange Serial port is transmitting data.
Off 0~25% WLAN signal strength.
Green (One) 25~50% WLAN signal strength.
Green (Two) 50~75% WLAN signal strength.
Green (Three) 75~100% WLAN signal strength.
Orange WLAN module failure.
Green Steady on: Has good link to wireless AP.
Green Serial port is receiving data.
Off No data is transmitted or received through the serial port.
Chapter 2 Getting Started
Steady on: The device server has been located by utility’s
location function.
Blinking: WLAN port is transmitting or receiving data.
11 EKI-1351/1352 User Manual
2.2.2 Dimensions (Units: mm)
2.2.2.1 EKI-1351 and EKI-1352
Figure 2.7 Front View of EKI-1351/1352
Figure 2.8 Side View of EKI-1351/1352
EKI-1351/1352 User Manual 12
Chapter 2 Getting Started
Figure 2.9 Back View of EKI-1351/1352
Figure 2.10 Top View of EKI-1351/1352
13 EKI-1351/1352 User Manual
2.3 Connecting Hardware
Next, we will explain how to find a proper location for your EKI-1351/1352, and then
explain how to connect to the network, hook up the power cable, and connect to the
EKI-1351/1352 serial port.
2.3.1 Choosing the Location
Due to its versatility and innovative design, EKI serial device server can be:
Fixed to a panel mount
Fixed to a DIN-rail.
2.3.2 Panel/Wall Mounting
The EKI-1351/1352 can be attached to a wall using the included metal brackets.
Each bracket comes with four screws; and then you can install the device firmly via
the components, please see the figure as below.
Figure 2.11 Combine the Metal Mounting Kit
EKI-1351/1352 User Manual 14
2.3.3 DIN-rail Mounting
You can mount the EKI-1351/1352 on a standard DIN rail. The DIN-rail kit is screwed
on the serial device server when out of factory. If the DIN-rail kit is not screwed on the
serial device server, please screw the DIN-rail kit on the serial device server first.
First, hang the EKI-1351/1352 to the DIN-rail with angle of inclination. See below.
Chapter 2 Getting Started
Figure 2.12 DIN-rail Step 1
Then, let the device down straight to slide over the rail smoothly.
Figure 2.13 DIN-rail Step 2
15 EKI-1351/1352 User Manual
2.3.4 Switch Settings
Normal Mode (Normal)
In normal use, you should move the switch to Normal Mode (Normal), and use the
configuration utility to configure EKI-1351/1352 for different BSS --- Infrastructure
mode or Ad hoc mode.
Diagnostic Mode (Diag.)
If your network connection is broken or you forgot your WLAN serial device server
settings, or you forgot the WEP key, you can move the switch to Diagnostic Mode
(Diag) to rebuild the settings and connection. The default settings in the Diagnostic
Mode as Table 2.2 are fixed. You can connect the host PC and the WLAN serial
device server by the default settings, and then you can reset all the network
parameters. After rebooting the system, the parameters you set will be applied into
Normal Mode. All the modifications will not affect the default settings of Diagnostic
Mode. That means you can always see the same settings while you enter the
Diagnostic Mode every time.
Table 2.2: Default Settings of Diagnostic Mode
Diagnostic Ad Hoc Mode Diagnostic Infrastructure Mode
SSID WLAN ANY
Channel 10 N/A
WEP None None
Enter Way 1. Power off
2. Put the switch at Diagnostic
Mode
3. Power on and wait for 6 to 10
seconds for rebooting, then the
WLAN serial device server will
be in Diagnostic Ad Hoc Mode
1. Power off
2. Put the switch at Normal Mode
3. Power on and wait for 6 to 10 seconds
for rebooting
4. Put the switch to the Diagnostic Mode,
and then wait for about 5 seconds until the
signal LED will start to flash for 10
seconds. During the 10 seconds interval,
you have to put the switch back to Normal
Mode, and the WLAN serial device server
will reboot to Diagnostic Infrastructure
Mode. (*Note: If you don’t put the switch
back to Normal Mode during the 10
seconds interval, the WLAN serial device
server will reboot to Diagnostic Ad Hoc
Mode.)
EKI-1351/1352 User Manual 16
Note! Please refer to Appendix A “Quick Start” if setting or resetting the
wireless connection
2.3.5 Wireless Connection
EKI-1351 and EKI-1352 operate in the 802.11b/g WLAN environment, which is
created by an access point working with 802.11b/g protocols. Locate your access
point and connect to the Ethernet network first. Then build up the connection
between the access point and the EKI-1351 and EKI-1352 (Refer to Appendix A
"Quick Start"). While the host PC can not connect to EKI-1351 and EKI-1352, you
might switch the EKI-1351/1352 as Diag. (Diagnostic) mode.
Set the switch of EKI-1351/1352 to Normal mode, then power on.
Wait for 10 to 20 seconds until the signal quality is stable.
Adjust the switch to Diag. mode, and then wait for about 5 seconds until the
signal strength LED is blinking.
Return the switch to Normal mode, EKI-1351/1352 will reboot automatically with
diagnostic infrastructure mode. Now EKI-1351/1352 will search the filed site for
access points and create the connection to the one with best signal strength.
Start the configuration utility tool on your host PC (ensure your host PC and the
possible access point the EKI-1351/1352 can connect to, are in the same network domain). Find the EKI-1351 or EKI-1352 on the network.
Reset the network setting as required. (About network settings, please refer to
next chapter of the manual)
Chapter 2 Getting Started
After the connection is ready, you can follow the steps shown in chapter 3 to configure and virtual COM port mapping through network and access point.
You can check the signal access strength with the WLAN signal strength LED
indicators. Adjust the antenna of the EKI serial device server to optimize
communication quality.
2.3.6 Power Connection
The EKI-1351/1352 supports dual 12 to 48 VDC power inputs and power-fail relay
output.
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).
Figure 2.14 Power Connector
17 EKI-1351/1352 User Manual
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