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Sollae EZL-300S User Manual

External wlan network converter for serial devices
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EZL-300S User's Manual
Version 1.3
Sollae Systems Inc.

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  • Page 1 EZL-300S User’s Manual Version 1.3 Sollae Systems Inc.
  • Page 2 To all residents of the European Union Important environmental information about this product This symbol on this unit or the package indicates that disposal of this unit after its lifecycle could harm the environment. Do not dispose of the unit as unsorted municipal waste;...

  • Page 3: Table Of Contents

    VARIABLES ........................... - 15 - 3.1. LAN ..................- 15 - ONFIGURATION WIRELESS 3.1.1. Items to Check for the Wireless LAN................- 15 - 3.1.2. Setting Wireless LAN Items of the EZL-300S .............. - 17 - 3.2. IP A ............- 19 - DDRESS AND...
  • Page 4 COMMAND 3.6. ARP..................- 31 - ETTING ADDRESS BY 3.6.1. Setting of EZL-300S’s IP address in Windows............. - 32 - 3.6.2. Setting of EZL-300S’s IP address in Linux ..............- 32 - 3.7. IP A DHCP............- 33 - ETTING DDRESS RELATED TEMS BY OPERATION MODE....................
  • Page 5 OTHER FUNCTIONS....................- 49 - 7.1. SSL..........................- 49 - 7.2........................- 49 - 7.3. TCP T ..................- 49 - ESIGNATING LOCK 7.4. COD D COD M ................- 50 - ETTING ELAY IN 7.5......................- 50 - ULTI CONNECTION 7.6........................- 50 - EBUGGING TECHNICAL SUPPORT, WARRANTY, AND NOTES ON OPERATION.....

  • Page 6: Overview

    It provides DHCP function, so that it can be applied to the cable network and the xDSL network. As EZL-300S provides SSL security function, it can be used in a system that requires a high level of security.

  • Page 7: Components

    1.2. Components EZL-300S Body 5V Power Adopter (Option) RS232C cable for PC connection (Option) PCMCIA Card (Option) 1.3. Specifications Input Voltage 5V (±10%) Power Current 340mA typical Dimension 136mm x 83mm x 29mm Weight About 140g Serial 9pin Dsub male...

  • Page 8: Interface

    PCMCIA card Insert Hole LEDs DC Jack 9pin-Dsub 1.4.1. Power DC 5V is used for EZL-300S and the specification is below: 1.4.2. Dsub Connector The connector of serial port is 9 pin Dsub male. The specification is below: - 8 -...
  • Page 9 RS-232 number name description level Dir. Etc. Data Carrier Detect RS232 Input Mandatory Receive Data RS232 Input Mandatory Transmit Data RS232 Output Mandatory DTR Data Terminal Ready RS232 Output Optional Ground Ground Mandatory Data Set Ready RS232 Input Optional Request To Send RS232 Output Optional...

  • Page 10: Status Leds

    (If you would use a wireless LAN card which is not provided from Sollae Systems, please test or contact me in advance.) The MAC address of EZL-300S is in bottom of the body, not in PCMCIA card. - 10 -...

  • Page 11: Installation And Test Run

    3.1. Serial port related items 3.1. Configuration Communication mode items (Decided depending on application program) 5. Application to the field 2.1.1. Checking the Communication Environment Before installing EZL-300S, check the network environment where EZL-300S is to be - 11 -...

  • Page 12: Configuration Wireless Lan

    WEP and WEP key IP address environment (local IP, subnet mask, gateway, etc.) Serial port type of the equipment to which EZL-300S is going to be connected (RS232, RS422, RS485) Serial port items of the equipment to which EZL-300S is going to be connected (baud rate, data bit, parity, stop bit) Application program protocol to be used (TCP/UDP, server/client, SSL, etc.)

  • Page 13: Test Run

    LED indicating a connection between the AP and PC to make sure this connection is successfully made. 2.2.3. Configuring EZL-300S Configure EZL-300S setting using ezConfig, the ezTCP configuration program, as follows. Run ezConfig, and click [Search ezTCP] button in the ezConfig window. And, ezConfig program will search all ezTCPs on the local network.

  • Page 14: Connecting To The Pc Serial Port

    Then, run serial communication program such as Hyper Terminal and Teraterm. When the program is run, select the same serial port values as those set to EZL-300S [19200bps, data bit: 8 bits, stop bit: 1 bit, no parity], which will finish the preparation for serial communication.

  • Page 15: Configuring Wireless Lan, Ip Address, And Environmental Variables

    3. Configuring wireless LAN, IP Address, and Environmental Variables 3.1. Configuration wireless LAN When configuring the wireless LAN, the user must check the network type and security issues of the network currently being used or to be installed in the future. Items to Check for the Wireless LAN 3.1.1.
  • Page 16 AP which he/she wants to communicate with by setting the SSID of the desired AP in the EZL-300S. (See 3.1.2.) For information about SSID of the AP, AP manual or AP configuration program can be referred to. If the user did not set the SSID, the EZL- 300S will be connected with the AP that is first found when power is supplied.

  • Page 17: Setting Wireless Lan Items Of The Ezl-300S

    According to the key value, data is encoded in 64 bits or 128 bits for communication. If the user did not set the WEP, security-related problems may occur. Setting Wireless LAN Items of the EZL-300S 3.1.2. There are two ways to configure wireless LAN-related items - Windows utility "ezSerialConfig"...
  • Page 18 LAN. If the user presses the Enter key in a field without entering any key, the user will use the existing value in the field. When the user completes entering data, the EZL-300S is reset to restart operation. The user can enter "." to delete existing values when setting the SSID.

  • Page 19: Ip Address And Environmental Variables

    You can set the IP address and the serial port related items by using ezConfig, the supplied configuration utility which allows you to configure your EZL-300S over the network, by logging in Telnet, or by using AT commands in ATC mode. Also, you can set IP address temporarily, using ARP method which uses MAC address (hardware address).
  • Page 20 Multi Conn. Multi-connection at T2S Local IP Address IP address of EZL-300S. If you set DHCP is set, an IP address is automatically allocated. So, you cannot set the local IP address. Subnet Mask Sets subnet mask of the network where EZL-300S is installed...
  • Page 21 300S operates as TCP server or as the port number waiting for UDP data when it operates in U2S communication mode. Peer Port Local port number of the server to connect when EZL-300S operates as TCP client or to transmit UDP data when it operates as U2S Serial Type Selects a serial port interface of EZL-300S, among RS232, RS422 (full duplex), and RS485 (half duplex) interfaces.
  • Page 22 [Conn. Byte] from the serial port. Block (Byte) Decides the size of UDP packet to be sent at a time when EZL-300S operates as U2S. COD Delay – Possible to set using Telnet (See 3.3).

  • Page 23: Configuration By Ezconfig

    20). If this item is set to 0, the send delay works as 20ms. Comment Stores maximum 32 byte user comment on the product. This item helps the user distinguish each EZL-300S more easily. Multi Conn. Enabled to support maximum 8 multiple connections in T2S mode. All connected hosts can exchange data with each other.
  • Page 24 √ ezConfig can set not only EZL-300S’s environmental variables but also other ezTCP series. The functions of ezConfig’s buttons are followed: This button is used to search for all of the network-attached ezTCPs. The search results will be displayed on the [Search List] box and you can select an item using a mouse or cursor as required.

  • Page 25: Example Configuration Of Ezconfig

    This button is used to close ezConfig. You can also close it by pressing ESC key on the keyboard. ezTCP provides User Authentication function to prevent an unwanted person from modifying the configuration. The authentication process is performed through the password string verification. When entering or changing the password strings, you can use this button.

  • Page 26: Configuration Using Telnet

    Reply from a.b.c.d: bytes=32 time=1ms TTL=64 Reply from a.b.c.d: bytes=32 time=1ms TTL=64 <When IP address is a.b.c.d.> √ IP address, subnet mask, and gateway IP address of both PC and EZL-300S should be correct to succeed in ping test. 3.4. Configuration using Telnet...

  • Page 27: Example Of Configuration Using Telnet

    3.4.1. Example of Configuration using Telnet The following section describes the process of configuring the environmental variables using Telnet. The environment used here for an example is as follows. EZL-300S Operating System Windows XP Korean Application Telnet Local IP Address 10.1.0.2...
  • Page 28 When the following message is displayed, Telnet connection is successfully established. If a password has been set to EZL-300S, Telnet connection is established only when the password is entered. The following is a screen for setting the IP address related items.
  • Page 29 The following is a screen for setting the serial port related items and the TCP port related items. The following is a screen for setting SSL and other items. The following is a screen for setting a password. - 29 -...

  • Page 30: Configuration Commands By Telnet

    3.4.2. Configuration Commands by telnet command Item Description MAC ADDR Fixed Enable ezConfig function. EZCFG Enable IP setting by ARP. Select to receive EZL-300S IP address as env if DHCP DHCP. LOCAL IP IP address of EZL-300S SUBNET MASK Subnet mask GATEWAY...

  • Page 31: At Command

    3.6. Setting IP address by ARP If ARP function is enabled, EZL-300S saves the destination IP address of the first packet which incomes to its MAC address as its local IP address to its volatile memory. By using this function, user can set IP address of EZL-300S.

  • Page 32: Setting Of Ezl-300S's Ip Address In Windows

    The example listed below shows how to change the arp cache table on Windows' MS- DOS prompt window and Linux. If EZL-300S's Ethernet address is 00:30:f9:00:00:01 and the IP address to use is a.b.c.d., the user can change the IP address as follows: 3.6.1.

  • Page 33: Setting Ip Address-Related Items By Dhcp

    IP address, subnet mask, gateway, and name server of EZL-300S. Using DHCP automatic setup function requires the user to check [DHCP] item on ezConfig. Note that the user may have to check [ARP] item according to the type of DHCP servers.

  • Page 34: Operation Mode

    4.1. 4.1.1. Overview EZL-300S has two modes - Normal mode and Console mode. Normal mode is the data communication mode operating in the normal state. In Console mode, the user can set environment variables (especially variables relating to the wireless LAN) through the serial port.

  • Page 35: Comparison Of Operation Modes

    4.3. Normal Communication Mode Normal communication mode is suitable for the purpose of using EZL-300S. Normal communication mode can be classified into four modes – T2S, ATC, COD, and U2S – each of which is described in the following table.
  • Page 36 In console mode, you can configure the environmental variables of EZL-300S and all security functions are disabled. Therefore, whether you choose or not, ezConfig and Telnet functions are enabled. If you have lost your password, you can remove or change the password in this mode.

  • Page 37: Normal Communication Mode

    To limit the peer host, user should set [Peer IP Address]. The only pre-defined host can be accessible. If [Peer IP Address] is 0.0.0.0, any host can connect to EZL-300S. If Multi Conn. Function is enabled, Maximum 8 hosts connect to EZL-300S. All hosts which are connected communicate with EZL-300S.
  • Page 38 Timeout Enable ezConfig function. ezConfig Enable Telnet log in function Telnet Configuration Select between Telnet password and Method Password ezConfig password. Enable IP setting by ARP. Select to receive EZL-300S IP address Dynamic IP DHCP as DHCP. - 38 -...

  • Page 39: Atc (At Command)

    5.2. ATC (AT Command) In ATC mode, the user can control the EZL-300S in a similar way to controlling the modem using AT command. In ATC mode, only a TCP connection is possible and both the server and the client can be configured.
  • Page 40 Set the following for ATC mode. Item Description Local IP Address IP address of EZL-300S Subnet mask Subnet Mask Gateway IP address of gateway IP Address Address Relate Items Port number for waiting to be connected in Local Port Server mode...

  • Page 41: Cod (Connect On Demand)

    5.3. COD (Connect On Demand) In COD mode, the EZL-300S functions as a client. When data of the pre-specified size [CONN BYTE] comes to the serial port, the EZL- 300S attempts a TCP connection to the TCP port [PEER PORT] of the preset host IP [PEER IP ADDRESS].
  • Page 42 Timeout Enable ezConfig function. ezConfig Enable Telnet log in function Telnet Configuration Select between Telnet password and Method Password ezConfig password. Enable IP setting by ARP. Select to receive EZL-300S IP address as Dynamic DHCP DHCP. Address - 42 -...

  • Page 43: U2S (Udp To Serial)

    A procedure for dividing data into blocks is as follows: If data of pre-specified bytes [Conn. Byte] comes to the serial port of the EZL-300S or if a specified period of time [TIMEOUT] elapses after first data reception, all data received for the same period is recognized as one block which is then transmitted to the UDP.
  • Page 44 UDP (unit:10ms) Enable ezConfig function. ezConfig Enable Telnet log in function Telnet Configuration Select between Telnet password and ezConfig Method Password password. Enable IP setting by ARP. Select to receive EZL-300S IP address as Dynamic IP DHCP DHCP. - 44 -...

  • Page 45: Atc Mode

    6. ATC Mode 6.1. Overview EZL-300S can be controlled by AT commands in ATC mode. For example, the peer host IP address can be set by AT+PRIP command and connect to the host by ATD command. Therefore, EZL-300S communicates several hosts alternatively.

  • Page 46: Extended At Commands (Example: At+Plip Etc.)

    To change online state to online command state during the connection, +++ string should be transmitted to EZL-300S as following time interval. When transmitting +++ string to EZL-300S, +++ string will be sent to peer host. The time from final data the first ‘+’ data of No data over 500ms(guard time)

  • Page 47: Changing Online Command State To Online State

    Time interval after receiving last ‘+’ No data over 500ms (guard time) 6.4.2. Changing Online Command State to Online State If EZL-300S’s state is in online command state during TCP connection, EZL-300S’s state can be changed into online state by an ATO command. 6.5.

  • Page 48: Example Of Passive Connection

    ▶ Set LOCAL PORT to listen ◀ <CR><LF>OK<CR><LF> Command OK ATA<CR> ▶ Passive connection command Listen on local port from a host A host connects to EZL-300S ◀ <CR><LF>CONNECT<CR><LF> TCP connection OK Data Communication 6.7. Example of TCP Disconnection 6.7.1. Example of active disconnection EZL-300S disconnects the connection.

  • Page 49: Other Functions

    For more information about how to use SSL, refer to the SSL application note provided on our company’s web site. 7.2. Ping Test On EZL-300S console, you can test ping from EZL-300S to another host. Ping test command format is as follows. Ping <SP>...

  • Page 50: Setting Cod Delay In Cod Mode

    7.4. Setting COD Delay in COD Mode If Conn. Byte is 0 in COD mode, EZL-300S attempts to connect to the pre-set host as soon as it is started. If connection is off after normal connection has been established, EZL-300S attempts to reconnect the host, usually after 10 second delay.

  • Page 51: Technical Support, Warranty, And Notes On Operation

    8.1. If you have any question regarding operation of the product, visit Customer Support FAQ corner and the message board on Sollae Systems' web site or send us an email at the following address: support@eztcp.com Website Address for Customer Support: http://www.sollae.co.kr/Support/index.html...
  • Page 52 Sollae Systems does not guarantee successful operation of the product if the product was used under conditions deviating from the product specifications. Reverse engineering of firmware and applications provided by Sollae Systems is prohibited. Use of firmware and applications provided by Sollae Systems for purposes other than those for which they were designed is prohibited.

  • Page 53: Revision History

    9. Revision History Date Version Comments Jun.29.2005 Initial Release Dec.26.2005 1.1 Added Revision History Added Trash Mark for WEEE Dec.27.2005 1.2 Corrected ISP function Jul.11.2006 Remove ISP mode - 53 -...

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