Sollae Systems CSW-H80 User manual

Sollae Systems Co., Ltd. http://www.sollae.co.kr
Serial Device Server
CSW-H80 User’s Manual
Version 1.2
2009-01-08

CSW-H80 User’s Manual Ver. 1.2
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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; it should be brought to a specialized company for recycling. It is your
responsibility to return this unit to your local recycling service. Respect your local
environmental regulation. If in doubt, contact your local waste disposal authorities

CSW-H80 User’s Manual Ver. 1.2
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Contents
1OVERVIEW ...............................................................................................................................- 5 -
1.1 Overview ................................................................................................................................................................- 5 -
1.2 Components.........................................................................................................................................................- 5 -
1.3 Specification .........................................................................................................................................................- 6 -
1.4 Layout......................................................................................................................................................................- 7 -
1.4.1 Layout ............................................................................................................................................................- 7 -
1.4.2 LED indicators.............................................................................................................................................- 8 -
1.4.3 Function button.........................................................................................................................................- 8 -
1.5 Interface .................................................................................................................................................................- 9 -
1.5.1 RS232 Port (DB9M)..................................................................................................................................- 9 -
1.5.2 Wirelesss LAN Interface...................................................................................................................... - 10 -
1.5.3 Power........................................................................................................................................................... - 10 -
2GETTING START ................................................................................................................... - 11 -
2.1 Installation Method........................................................................................................................................ - 11 -
2.1.1 Checking the Communication Environment ............................................................................. - 11 -
2.1.2 Configuring the Environmental Variables................................................................................... - 11 -
2.1.3 Connecting to the network............................................................................................................... - 12 -
2.2 Test Run............................................................................................................................................................... - 12 -
2.2.1 Installing wireless LAN ........................................................................................................................ - 12 -
2.2.2 Changing PC IP Address .................................................................................................................... - 12 -
2.2.3 Configuring CSW-H80......................................................................................................................... - 12 -
2.2.4 Communication Test............................................................................................................................. - 14 -
3CONFIGURATION................................................................................................................. - 17 -
3.1 Fundamentals of wireless LAN ................................................................................................................. - 17 -
3.1.1 Infrastructure Mode.............................................................................................................................. - 17 -
3.1.2 Ad-hoc Mode .......................................................................................................................................... - 17 -
3.1.3 SSID.............................................................................................................................................................. - 18 -
3.1.4 Channel ...................................................................................................................................................... - 18 -
3.1.5 Authentication......................................................................................................................................... - 18 -
3.1.6 WEP (Wired Equivalent Privacy) ...................................................................................................... - 18 -
3.2 IP Address and Environmental Variables ............................................................................................. - 18 -
3.3 Configuring with ezManager..................................................................................................................... - 19 -
3.3.1 ezManager ................................................................................................................................................ - 19 -
3.3.2 Configuration methods with ezManager ................................................................................... - 19 -

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3.3.3 Buttons of the ezManager ................................................................................................................ - 20 -
3.3.4 ezManager Configuration Items..................................................................................................... - 22 -
3.3.5 Setting WEP key..................................................................................................................................... - 24 -
3.3.6 ezManager Operation example ...................................................................................................... - 25 -
3.4 AT command..................................................................................................................................................... - 26 -
3.5 Setting DHCP .................................................................................................................................................... - 26 -
3.6 Setting PPPoE ................................................................................................................................................... - 26 -
4SYSTEM MANAGEMENT..................................................................................................... - 28 -
4.1 Operation Mode.............................................................................................................................................. - 28 -
4.1.1 Normal mode .......................................................................................................................................... - 28 -
4.1.2 Serial Configuration Mode................................................................................................................ - 28 -
4.1.3 ISP Mode ................................................................................................................................................... - 28 -
4.1.4 Comparison between two modes.................................................................................................. - 28 -
4.2 Upgrading new firmware ............................................................................................................................ - 29 -
4.3 Checking current status ............................................................................................................................... - 30 -
4.3.1 Telnet login............................................................................................................................................... - 30 -
4.3.2 Commands for checking the status.............................................................................................. - 30 -
4.3.3 Check Status in the ezManager...................................................................................................... - 31 -
4.4 IP Change Trap................................................................................................................................................. - 32 -
4.4.1 DDNS –www.dyndns.com................................................................................................................. - 32 -
4.4.2 TCP/UDP..................................................................................................................................................... - 32 -
4.5 Remote Debugging........................................................................................................................................ - 34 -
5COMMUNICATION MODE.................................................................................................. - 35 -
5.1 Introduction....................................................................................................................................................... - 35 -
5.2 T2S ......................................................................................................................................................................... - 36 -
5.2.1 TCP Connection ...................................................................................................................................... - 36 -
5.2.2 Connection Limitation ......................................................................................................................... - 36 -
5.2.1 Serial Data Before the TCP Connection ...................................................................................... - 37 -
5.2.2 Data Transmission ................................................................................................................................. - 37 -
5.2.3 Disconnection.......................................................................................................................................... - 37 -
5.3 COD....................................................................................................................................................................... - 38 -
5.3.1 Serial Data Before the TCP Connection ...................................................................................... - 38 -
5.3.2 Data Transmission ................................................................................................................................. - 38 -
5.3.3 Disconnection.......................................................................................................................................... - 38 -
5.3.4 DNS.............................................................................................................................................................. - 39 -
5.4 ATC......................................................................................................................................................................... - 40 -
5.5 U2S ........................................................................................................................................................................ - 41 -

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6ATC MODE ............................................................................................................................ - 42 -
6.1 Overview ............................................................................................................................................................. - 42 -
6.1.1 AT command format ............................................................................................................................ - 42 -
6.2 Basic AT Command Set (Example: ATA, ATD etc.) ........................................................................... - 42 -
6.3 Extended AT Commands (Example: AT+PLIP etc.)........................................................................... - 43 -
6.4 Online State and AT Command State ................................................................................................... - 44 -
6.4.1 Changing Online State to AT Command State........................................................................ - 44 -
6.4.2 Changing AT Command State to Online State........................................................................ - 44 -
6.5 Example of Configuration with AT Command................................................................................... - 44 -
6.6 Example of TCP Connection ...................................................................................................................... - 45 -
6.6.1 Example of Active Connection ........................................................................................................ - 45 -
6.6.2 Example of Active Connection with a host name .................................................................. - 45 -
6.6.3 Example of passive Connection ...................................................................................................... - 46 -
6.7 Example of TCP Disconnection................................................................................................................. - 46 -
6.7.1 Example of active disconnection.................................................................................................... - 46 -
6.7.2 Example of passive disconnection................................................................................................. - 46 -
7TECHNICAL SUPPORT, WARRANTY, AND NOTES ON OPERATION ........................... - 48 -
7.1 Technical Support ........................................................................................................................................... - 48 -
7.2 Warranty.............................................................................................................................................................. - 48 -
7.2.1 Refund......................................................................................................................................................... - 48 -
7.2.2 Free Repair Services ............................................................................................................................. - 48 -
7.2.3 Charged Repair Services .................................................................................................................... - 48 -
7.2.4 Notes on Operation ............................................................................................................................. - 48 -
8REVISION HISTORY ............................................................................................................. - 50 -

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1 Overview
1.1 Overview
Along with the development of the Internet, the demand for data communication functions has
increased recently. Data communication over the Internet requires using TCP/IP, the Internet
communication protocol. That is to say, in order to connect a system to the Internet, TCP/IP
protocol must be implemented. It is possible to implement TCP/IP by directly implementing the
protocol, porting public TCP/IP, or using Operating System (OS). However, all these methods
impose burdens on the developer in time, cost, and technology.
ezTCP series, a Serial ↔ TCP/IP protocol converter product group of Sollae Systems, enables
you to use TCP/IP communication (the Internet communication) function simply by “connecting
the cable to a serial port”. ezTCP sends data from the serial port to the Internet network after
TCP/IP processing, and vice versa.
CSW-H80 in ezTCP product group is a product that provides TCP/IP communication through
wireless LAN (IEEE802.11b/g). In other words, like other ezTCP products, CSW-H80 sends data
from the serial port to the wireless LAN after TCP/IP processing and vice versa.
As CSW-H80 has an SMA antenna port and it is a compact size product, it is easy CSW-H80 to
attach to user systems.
It provides DHCP and PPPoE functions, so that it can be applied to the cable network and the
xDSL network. And it has DDNS(Dynamic DNS) function, so it can be used more easily in the
internet.
It also provides debugging function, so user can solve the problem with ours.
1.2 Components
CSW-H80 Body
Omni-directional dipole antenna
CD including utilities and documents (Option)
5V Power Adapter (Option)
RS232 cable for PC connection (Option)

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1.3 Specification
Power
Input Voltage
5V (±10%)
Current
300mA typical
Dimension
93mm x 57mm x 24mm (without antenna)
Weight
about 66g (without antenna)
Interface
Serial
9 pin Dsub male
Network
IEEE802.11b/g
Serial Port
1 x RS232 (300bps ~ 230400bps, RTS/CTS Flowcontrol)
Network
IEEE802.11b/g with SMA female jack
Supplied with a 2dBi omni-directional dipole antenna
Protocols
TCP, UDP, IP, ICMP, ARP, DHCP, PPPoE,
DNS lookup, DDNS(Dynamic DNS)
Telnet COM Port Control Option(RFC2217)
WEP
Diagnostic
Online Debugging Function
RoHS
RoHS Compliant
Approvals
MIC: SLS-CSW-H80 (A)
Communicati
on Mode
T2S
TCP Server Mode
COD
TCP Client Mode
ATC
TCP Server / Client
(AT command emulation)
U2S
UDP
Utilities
ezManager
Configuration utility via LAN
ezParing
ezParing utility
Ezterm
Socket test utility
Hotflash
Firmware download utility via TFTP
ezVSP
Serial-TCP/IP virtual driver for Windows
 You can download the firmware from our website (http://www.eztcp.com).

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1.4 Layout
1.4.1 Layout
There are an RS232 port, an SMA female jack for antenna connection, and a Power jack on the
top side. And there is a Function button on the right side. And 5 LED indicators are in the CSW-
H80.
Figure 1-1 CSW-H80 layout
Power jack
SMA female jack
LED indicators
RS232 port
Function button

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1.4.2 LED indicators
There are 5 LED indicators on the CSW-H80. The followings are the operations of each LED
indicators.
Mode
LED
LED Status
Description
Normal
Mode
PWR
Red
On
Power is on.
STS
Yellow
Blink every 1
second
IP address is assigned.
Blink 4 times
every 1
second
IP address is not assigned in DHCP
or PPPoE modes.
On
TCP is connected
LINK
Green
On
CSW-H80 is connected to wireless
LAN
RXD
Yellow
Blink
Data are received from the wireless
LAN
TXD
Green
Blink
Data are transmitted to the wireless
LAN
ISP Mode
PWR
Red
On
CSW-H80 is in the ISP mode
Others
Off
Serial
Configuration
Mode
PWR
Red
On
CSW-H80 is in the Serial
Configuration Mode
Others
Blink every 1
second
simultaneously
1.4.3 Function button
There is a Function button on the side. If this button is pushed 20ms~1s, it operates as Serial
Configuration Mode. If it is push over 1 second, CSW-H80 operates as ISP mode. User can do
firmware download to the CSW-H80 in the ISP mode. Please refer to the 4.2 Upgrading new
firmware for more information on firmware download.

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1.5 Interface
1.5.1 RS232 Port (DB9M)
There are two RS232 ports. The ports are interfaced with 9 pin D-sub male connectors.
RS232 ports
Number
Name
Description
level
Dir.
Etc.
1
DCD
Not connected to CPU
-
-
NC
2
RXD
Receive Data
RS232
Input
mandatory
3
TXD
Transmit Data
RS232
Output
mandatory
4
DTR
Data Terminal Ready
(Always active signal)
RS232
Output
optional
5
GND
Ground
Ground
-
mandatory
6
DSR
Not connected to CPU
-
-
NC
7
RTS
Request To Send
RS232
Output
optional
8
CTS
Clear To Send
RS232
Input
optional
9
RI
Not connected to CPU
-
-
NC
Data bits, Parity, Stop bit
Items
Parameters
Data bit
8, 7, 6, 5
Parity
None, Even, Odd, Mark, Space
Stop bit
1, 1.5, 2
Flow Control
CSW-H80 has RTS/CTS flow-control function.

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Telnet COM Port Control Option
CSW-H80 has a Telnet COM Port Control function that is defined in the RFC2217. If this
option is set, CSW-H80 transmits serial input signals (CTS) to the peer host and set the
values (RTS, baud rate, data bits, parity, stop bit) onto its serial ports from the peer host.
TX Delay
CSW-H80 has a function that delays its serial data for the user‟s slow device. User can set
the interval between byte and byte which are outputting from CSW-H80‟s serial ports. Its
unit is byte.
1.5.2 Wirelesss LAN Interface
CSW-H80 embeds IEEE802.11b/g function which is interfaced an SMA female jack. An
omni-directional 2dBi antenna is also included in the package.
1.5.3 Power
DC5V is used for CSW-H80 and the specification is below:

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2 Getting Start
2.1 Installation Method
You can install CSW-H80 in the following steps.
Title
Item
Sub-item
1.
Checking the
communication
environment
Check items
IP address environment
Serial port parameters
Application program to be used
2.
Configuring
the
environmental
parameters
Configuration
method
Set by ezManager, a utility program for configuration
through the serial and network.
Set by AT commands in ATC mode
Configuration
items
IP address related items
Wireless LAN related items
Serial port related items
Communication mode (depending on application
program)
3. Connecting
to the network
Checking
method
Checking the LINK LED indicator
3. Application to the field
2.1.1 Checking the Communication Environment
Before installing CSW-H80, check the network environment where CSW-H80 is to be
installed, including the followings matters:
IP address environment (local IP, subnet mask, gateway, DHCP/PPPoE etc.)
Wireless LAN related parameters (Infrastructure/ad-hoc, SSID, secure protocols)
Serial port type of the equipment to which CSW-H80 is going to be connected (RS232)
Serial port items of the equipment to which CSW-H80 is going to be connected (baud
rate, data bit, parity, stop bit, flow control)
Application program protocol to be used (TCP/UDP, server/client, etc.)
2.1.2 Configuring the Environmental Variables
After connecting a serial cable between the serial port of the CSW-H80 and PC‟s COM port,
press the function button from 20 ms to 1 s to enter into the serial configuration mode. And user
has to set the IP address related items, wireless LAN related items, serial port related items, and

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so on.
. 2.1.3 Connecting to the network
If you power the CSW-H80 on, it will try to connect to the pre-configured network. After
completing the connection, the LINK LED indicator will be on.
2.2 Test Run
You can perform test run according to the following orders. The test run described here is
based on the assumption that the IP address of the CSW-H80 is set to 10.1.0.1 and the PC is set
to 10.1.0.2.
2.2.1 Installing wireless LAN
Connect an AP (Access Point) to PC with a LAN cable and check the SSID and secure
information of the AP according to the direction of the vendor.
2.2.2 Changing PC IPAddress
You can change the IP address of your PC as follows:
IP Address
10.1.0.2
Subnet Mask
255.0.0.0
Gateway IP Address
-
2.2.3 Configuring CSW-H80
After connecting a serial cable between CSW-H80‟s serial port and PC‟s serial port, run the
CSW-H80 as the serial configuration mode. Then, configure CSW-H80 setting using ezManager,
the ezTCP configuration program, as follows.

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tab
items
values
NETWORK
Local IP Address
10.1.0.1
Subnet Mask
255.0.0.0
Gateway IP
0.0.0.0

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INTERFACE
(Serial)
Baud rate
19,200
Parity
NONE
Data Bits
8
Stop Bit
1
Flow Control
NONE
INTERFACE
(TCP/IP)
EzTCP Mode
T2S(0) –TCP Server
Local Port
1470
Timeout
0
Byte Count
0
WLAN
WLAN Mode
Infrastructure
SSID
As same as AP‟s SSID
Security Configuration
As same as AP‟s settings
(Refer to the 3.3.5 Setting WEP
key.)
2.2.4 Communication Test
Power the CSW-H80 off and on, then it tries to connect to the wireless LAN. After completing
the wireless LAN connection, the LINK indicator will be on.
1) A program for testing starts if you press the [ezTCP Test] button of the ezManager.
2) Press the [Connect] button after inputting 10.1.0.1 and 1470 in the IP and Port. If the TCP
connection is established there will be “Connected [REMOTE HOST 10.1.0.1 : 1470]. And the
STS indicator will be on.

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3) Press the [Open] button after selecting serial port that is connected to the CSW-H80. If the
serial port is open, the “COM1 Port is opened”message will be shown.
4) If you press the [Send] button below of the [LAN TX] window, the data in the [LAN TX]
window will be transmitted to the [Serial RX].
① ② ③
④
⑤

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5) If you press the [Send] button below the [Serial TX] window, the data will be transmitted
from the [Serial TX] window to the [LAN RX] Window.
6) If the transmitting and receiving data are same, the communication test is successful.
⑥⑦
⑧
⑨

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3 Configuration
3.1 Fundamentals of wireless LAN
CSW-H80 supports IEEE802.11b/g. The IEEE802.11b and IEEE802.11g support 11Mbps and
54Mbps transmission rate respectively. There are two types wireless LAN networks –infrastructure
and ad-hoc.
3.1.1 Infrastructure Mode
The wireless LAN stations communicate through AP. So at least one AP requires to make the
infrastructure network. The wireless LAN station can talk to wired network hosts because AP relays
between wireless LAN stations as well as between wireless LAN station and wired LAN(Ethernet)
host.
3.1.2 Ad-hoc Mode
Wireless stations are communicate each other without any AP. So user can make a system more
simply. It is proper if there‟s no wired LAN requirement and it is a small network. Some people
call it peer-to-peer mode.

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3.1.3 SSID
It is an identifier to identify the particular wireless LAN. So the same SSID should be configured
to all stations to communicate in the same wireless network. In case of infrastructure mode, user
has to set his station‟s SSID as same as AP‟s.
3.1.4 Channel
IEEE802.11b/g wireless LAN stations communicate through the ISM(Industrial, Scientific, and
Medical) band whose frequency is about 2.4GHz. IEEE802.11 specification divides this band into 14
channels every 5MHz.
If user installs more than one wireless LAN networks in the same area, the channels should be
apart more than 4 channels to avoid interferences.
3.1.5 Authentication
A wireless LAN station should get authentication from the AP in the infrastructure mode. There
are the Open system and the Shared key for the authentication methods.
3.1.6 WEP (Wired Equivalent Privacy)
The WEP is a secure protocol for wireless LAN. There are two kinds of WEP method –64 bits
and 128 bits key.
3.2 IP Address and Environmental Variables
For TCP/IP communication, you must set IP address related items. In addition, you have to set
wireless LAN related items and serial port related items (serial port type, communication speed,
data bit length, parity bit, flow control, etc) to CSW-H80.
You can set the IP address and the serial port related items by using ezManager, the supplied

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configuration utility which allows you to configure your CSW-H80 over the serial and the network,
or by using AT commands in ATC mode
3.3 Configuring with ezManager
3.3.1 ezManager
The basic environmental variables (wireless LAN related items, IP address related items,
serial port items, and etc.) can be set by ezManager which is an integrated management tool
for Windows.
The ezManager is operated in Microsoft Windows (Windows 98, 98 SE, 2000 Pro, ME, XP
Pro/Home, Vista). Following is the screen shot of ezManager which is just launched.
3.3.2 Configuration methods with ezManager
There are [LOCAL], [REMOTE], and [SERIAL] tabs in according to the configuration method. Refer
to the following table.
LOCAL
REMOTE
SERIAL
Connection
method
Wireless LAN
Wireless LAN
Serial
protocol
UDP broadcast
UDP unicast
Serial
Identification
MAC Address
IP Address
COM Port
Property
UDP Port
50005
UDP Port
50005
115200/N/8/1