Sollae Systems EZL-300W Lite User manual

EZL-300W Lite User’s Manual
Version 1.0
Sollae Systems Co., Ltd.

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TABLE OF CONTENTS
1.OVERVIEW····················································································- 5 -
1.1.Overview ·························································································································- 5 -
1.2.Components ···················································································································· - 5 -
1.3.Specifications ··················································································································- 6 -
1.4.Interface Specifications ·································································································- 6 -
1.4.1.Power ··························································································································- 6 -
1.4.2.RS232 Dsub Connector ·······························································································- 7 -
1.4.3.Status LED ··················································································································- 8 -
1.4.4.Wireless LAN Interface·······························································································- 8 -
2.INSTALLATION AND TEST OPERATION ····································- 9 -
2.1.Installation ······················································································································- 9 -
2.1.1.Checking Communication Environment····································································- 10 -
2.1.2.Configuring the Wireless LAN··················································································- 10 -
2.1.3.Connecting to the Network························································································- 10 -
2.1.4.Setting Environment Variables··················································································- 11 -
2.2.Test Operation·············································································································· - 11 -
2.2.1.Changing the IP Address of the PC ···········································································- 11 -
2.2.2.Installing the AP········································································································- 11 -
2.2.3.Installing ezTCP········································································································- 11 -
2.2.4.Configuring ezTCP ···································································································- 12 -
2.2.5.Connecting via the Serial Port of the PC····································································- 13 -
2.2.6.Communication Test ·································································································- 13 -
3.CONFIGURING WIRELESS LAN, IP ADDRESS, AND
ENVIRONMENT VALUES·································································· - 14 -
3.1.Configuring Wireless LAN ·························································································- 14 -
3.1.1.Items to Check for the Wireless LAN········································································- 14 -
3.1.2.Setting Wireless LAN Items of the ezTCP·································································- 16 -

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3.2.Setting the IP Address and Environment Values······················································- 17 -
3.2.1.ezConfig····················································································································- 18 -
3.2.2.AT Command············································································································- 22 -
3.2.3.Setting the IP Address Using the ARP·······································································- 22 -
3.2.4.Setting IP Address-related Items through the DHCP Server ······································- 23 -
4.OPERATION MODE ···································································· - 24 -
4.1.Overview and How To Enter Each Mode··································································- 24 -
4.1.1.Overview···················································································································- 24 -
4.1.2.How To Enter Each Mode ·························································································- 24 -
4.2.Serial Configuration Mode and ISP Mode································································- 26 -
4.2.1.Serial Configuration Mode ························································································- 26 -
4.2.2.ISP Mode ··················································································································- 26 -
4.3.Normal Communication Mode···················································································- 26 -
5.NORMAL COMMUNICATION MODES ·······································- 28 -
5.1.T2S (TCP to Serial)······································································································ - 28 -
5.2.ATC (AT Command)····································································································- 30 -
5.3.COD(Connect On Demand)························································································- 32 -
5.4.U2S (UDP to Serial) ·····································································································- 34 -
6.ATC MODE ··················································································- 36 -
6.1.Overview ·······················································································································- 36 -
6.1.1.AT command format··································································································- 36 -
6.2.Basic AT Commands···································································································· - 36 -
6.3.Extended AT commands······························································································- 37 -
6.4.Online State and Online Command State ·································································- 37 -
6.4.1.How to switch to online command state from online state ·········································- 38 -
6.4.2.How to switch to online command state ····································································- 38 -

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6.5.Example of Configuration by AT Commands ··························································- 38 -
6.6.Example of Connection ·······························································································- 39 -
6.6.1.Example of Active Connection ··················································································- 39 -
6.6.2.Example of Passive Connection·················································································- 39 -
6.7.Example of Termination······························································································ - 39 -
6.7.1.Example of Active Termination ·················································································- 39 -
6.7.2.Example of Passive Termination················································································- 40 -
7.TECHNICAL SUPPORT, WARRANTY, AND NOTES ON
OPERATION ······················································································ - 41 -
7.1.Technical Support ········································································································- 41 -
7.1.1.Warranty ···················································································································- 41 -
7.1.2.Refund·······················································································································- 41 -
7.1.3.Free Repair Services··································································································- 41 -
7.1.4.Charged Repair Services ···························································································- 41 -
7.1.5.Notes on Operation····································································································- 42 -

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1. OVERVIEW
1.1. Overview
With the development of Internet technologies, demands for data communication
through the Internet keep increasing. However, to have data communication through
the Internet, users must use TCP/IP protocol which is the basic communication protocol
of the Internet. In other words, to connect a device to the Internet, the user must
implement TCP/IP protocol. To implement TCP/IP protocol, the user must implement
TCP/IP protocol by themselves, port open TCP/IP, or use an OS. However, these
methods are quite burdensome in terms of time, cost, and technology.
As a family of serial to TCP/IP protocol converters, ezTCP series manufactured by
Sollae Systems provide TCP/IP communication functions (Internet communication
functions) "only through serial port connection." The ezTCP series perform TCP/IP
protocol processing on data received from the serial port, and send the processed data to
the Internet. Similarly, the ezTCP series perform TCP/IP protocol processing on data
received from the Internet and sends the processed data to the serial port.
EZL-300W Lite(it is pronounced as “lait”), which is one of ezTCP products, provides
TCP/IP communication through IEEE802.11b (wireless LAN). In other words, like
other ezTCP products, EZL-300W Lite TCP/IP-processes data received from the serial
port and sends the processed data to the wireless LAN network. And EZL-300W
Lite(hereafter ezTCP) TCP/IP-processes data received from the wireless LAN network
and sends the processed data to the serial port.
ezTCP supports the infrastructure network through the Access Point (AP) and also
provides an "ad-hoc" network function supporting peer to peer communication without
any AP.
As ezTCP provides DHCP as well as TCP/IP/UDP, ezTCP can be applied to cable
networks.
1.2. Components
zEZL-300W Lite Main Body
z3.3V PCMCIA Wireless LAN Card(16bit PC Card) Supporting IEEE802.11b
(option)
z5V SMPS Adapter (option)
zRS-232 Cable (option)

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1.3. Specifications
Input Voltage 5V
Power Current
Consumption
320mA typical
(It depends on wireless LAN card)
Size 137mm x 78mm x 28mm
Weight 305 g
Serial 9pin Dsub male
Interface
Network 16bit PC card
Serial Port RS232 level(1200bps ~ 115200bps)
RTS/CTS hardware flow-control
Network IEEE802.11b wireless LAN(infrastructure/ad-hoc)
Protocols TCP, UDP, IP, ICMP, ARP, DHCP, WEP
T2S TCP, server mode
COD TCP, client mode
ATC TCP, server/client modes
(AT command emulation)
Communicat
-ion
Modes
U2S UDP
ezConfig Configuration utility via LAN
ezSerialConfig Configuration utility via serial
ezterm Socket communication utility for test
Utilities
wflash Firmware download utility
)Download utilities and firmware from http://www.eztcp.com.
1.4. Interface Specifications
1.4.1. Power
The user must use the DC5V SMPS power adapter provided by Sollae
Systems. Specifications of a power jack are as shown below.

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1.4.2. RS232 Dsub Connector
A serial port connector is interfaced through the 9pin Dsub male connector. For
specifications of each pin, see the following:
No. Name Description Signal Level Direction Remark
1 NC
2 RXD Receive Data RS232 Input mandatory
3 TXD Transmit Data RS232 Output mandatory
4 DTR Data Terminal Ready RS232 Output Always ON
5 GND Ground Ground - mandatory
6 DSR Data Set Ready RS232 Input Not used
7 RTS Request To Send RS232 Output optional
8 CTS Clear To Send RS232 Input optional
9 NC

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1.4.3. Status LED
In ezTCP, there are total 5 status LEDs.
Each status LED functions as follows:
Name Description Color LED Status Description
PWR Power Red Turned on When the power is on
Blinking
once per
second
When IP address is
assigned, but no TCP
connection established
Blinking 4
times every 2
seconds
When no IP address was
assigned(DHCP)
STS Status Yellow
Turned on During a TCP connection
LINK Wireless LAN
Link Green Turned on the wireless LAN LINK is established
RXD Wireless LAN
Reception Yellow Turned on When a packet is received from the wireless LAN
TXD Wireless LAN
Transmission Green Turned on
When a packet is
transmitted to the wireless
LAN
1.4.4. Wireless LAN Interface
ezTCP requires PCMCIA wireless LAN card, which should be 3.3V 16 bits PC card
and compatible to PRISM 2.5 or PRISM 3.0 of Intersil.

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2. Installation and Test Operation
2.1. Installation
Install ezTCP as follows:
Categories Sub-
categories Context See
Wireless LAN environment 3.1.1.
IP address environment
Serial port setup values
1. Checking
Communication
Environment
Items to
check
Application program to use
Setup tool ezSerialConfig 3.1.2.
Wireless LAN Types
(Infrastructure and ad-hoc)
Service Set Identification (SSID)
Channel
2. Configuring
the Wireless
LAN Setup Items
Whether to use WEP
(If used, set key value)
3.1.1.
3. Connecting
to the Network
Confirming
Procedure Checking link LED lightning status
Set by ezConfig
(a configuration utility through a network) 3.2.1.
Using AT command in ATC mode 6.
Setup
Procedure
Using ARP
(To set only the IP address temporarily) 3.2.3.
IP address-related items 3.2.
Serial port-related items 3.2.
4. Setting
Environment
Variables
Setup Items Communication mode
(To be decided according to the application
program)
4.3.
5. Field Application

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2.1.1. Checking Communication Environment
Before installing ezTCP, the user must check conditions of the network to install the
ezTCP as follows:
zWireless LAN network types (infrastructure/ad-hoc)
zthe SSID and the channel of the wireless LAN
zWhether to use WEP and WEP setup values (the number of bits and key
values)
zAuthentication Protocol for wireless LAN access
zIP address environment (Local IP, subnet mask, gateway, etc.)
zSerial port items of the device to connect (baudrate, databit, parity, and stop
bit)
zProtocol of the application program to use (TCP/UDP, server/client, etc.)
)For more information about the wireless LAN, see “ 3.1 Configuring the
Wireless LAN."
)For more information about protocol of the application program to use, see
“ 4.3 Normal Communication Mode. ”
※ It is not applicable to a wireless LAN which use authentication, because ezTCP
doesn’t support authentication protocols for the wireless LAN
2.1.2. Configuring the Wireless LAN
Before using the ezTCP, the user must set wireless LAN-related items. Wireless LAN-
related items can be set via ezSerialConfig in a serial configuration mode. Supply
power without the PCMCIA card insertion to enter into the serial configuration
mode. In the serial configuration mode, the user can set not only wireless LAN-related
items but also all setup values of the ezTCP.
)For more information about the serial configuration mode, see “ 4. Operation
Modes."
)For more information about wireless LAN-related items in serial configuration
mode, see
“ 3.1 Configuring the Wireless LAN. ”
2.1.3. Connecting to the Network
Insert the PCMCIA card while power is not supplied. Then, connect the device with the