Sollae Systems CSW-M83 Manuel utilisateur

Sollae Systems

https://www.ezTCP.com

Serial↔WLAN module

CSW-M83 User Manual

Version 2.7

CSW-M83 User Manual Ver. 2.7

- 1 -

https://www.ezTCP.com

This symbol, found on your product or on its packaging, indicates that this

product should not be treated as household waste when you wish to dispose

of it. Instead, it should be handed over to an applicable collection point for the

recycling of electrical and electronic equipment. By ensuring this product is

disposed of correctly, you will help prevent potential negative consequences to the

environment and human health, which could otherwise be caused by inappropriate disposal

of this product. The recycling of materials will help to conserve natural resources. For more

detailed information about the recycling of this product, please contact your local city

office, household waste disposal service or the retail store where you purchased this

product.

※ L'antenne de ce boîtier devra être placée à une distance minimale de 2 m de toute

personne et animal.

CSW-M83 User Manual Ver. 2.7 
 
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Contents 
Overview .................................................................................................................................. - 5 - 
1  Overview ................................................................................................................................................................ - 5 - 
2  Features .................................................................................................................................................................. - 5 - 
3  Application Examples ....................................................................................................................................... - 6 - 
4  Specification ......................................................................................................................................................... - 7 - 
4.1  Hardware ...................................................................................................................................................... - 7 - 
4.2  Software ........................................................................................................................................................ - 7 - 
4.3  Dimension .................................................................................................................................................... - 8 - 
4.4  Pin assignment .......................................................................................................................................... - 9 - 
4.5  Serial Port Parameters ......................................................................................................................... - 10 - 
4.6  Voltage Parameters ............................................................................................................................... - 10 - 
4.7  an Application Circuit .......................................................................................................................... - 11 - 
5  Evaluation Board.............................................................................................................................................. - 12 - 
5.1  Components ............................................................................................................................................. - 12 - 
Installation and Test ............................................................................................................ - 15 - 
1  Wireless LAN Overview ................................................................................................................................ - 15 - 
1.1  WLAN mode: Infrastructure .............................................................................................................. - 15 - 
1.2  WLAN mode: Ad-hoc .......................................................................................................................... - 16 - 
1.3  WLAN mode: Soft AP .......................................................................................................................... - 17 - 
1.4  Key terms ................................................................................................................................................... - 18 - 
1.5  Authentication and Security ............................................................................................................. - 18 - 
2  Installation .......................................................................................................................................................... - 19 - 
2.1  Making Wireless LAN link ................................................................................................................. - 19 - 
2.2  Setting Network Area .......................................................................................................................... - 22 - 
3  Simple Test ......................................................................................................................................................... - 24 - 
Configuration ....................................................................................................................... - 27 - 
1  Configuration with ezManager ................................................................................................................. - 27 - 
1.1  Configuration via Serial ...................................................................................................................... - 27 - 
1.2  Configuration via Network ................................................................................................................ - 28 - 
2  AT command ..................................................................................................................................................... - 29 - 
3  WEB Configuration ......................................................................................................................................... - 30 - 
Operation Modes ................................................................................................................ - 32 - 
1  What is the Operation Mode? .................................................................................................................. - 32 - 

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2  Changing modes ............................................................................................................................................. - 32 - 
3  Comparison with each mode .................................................................................................................... - 33 - 
4  Normal Mode ................................................................................................................................................... - 33 - 
4.1  WLAN mode ............................................................................................................................................ - 33 - 
4.2  Communication mode......................................................................................................................... - 34 - 
5  Serial Configuration Mode ......................................................................................................................... - 35 - 
5.1  Configuring Parameters ...................................................................................................................... - 35 - 
5.2  Revoking Serurity Options................................................................................................................. - 35 - 
5.3  Background Soft AP ............................................................................................................................. - 35 - 
6  ISP Mode ............................................................................................................................................................ - 35 - 
6.1  Upgrading Firmware............................................................................................................................. - 35 - 
Communication Modes ...................................................................................................... - 36 - 
1  TCP Server .......................................................................................................................................................... - 36 - 
1.1  Key parameters ....................................................................................................................................... - 36 - 
1.2  Examples .................................................................................................................................................... - 37 - 
2  TCP Client ........................................................................................................................................................... - 40 - 
2.1  Key parameters ....................................................................................................................................... - 40 - 
2.2  Examples .................................................................................................................................................... - 41 - 
3  AT Command .................................................................................................................................................... - 44 - 
3.1  Key parameters ....................................................................................................................................... - 44 - 
3.2  Examples .................................................................................................................................................... - 45 - 
4  UDP ....................................................................................................................................................................... - 48 - 
4.1  Key parameters ....................................................................................................................................... - 48 - 
4.2  Examples .................................................................................................................................................... - 49 - 
System Management .......................................................................................................... - 51 - 
1  Upgrading Firmware ...................................................................................................................................... - 51 - 
1.1  Firmware .................................................................................................................................................... - 51 - 
1.2  Processes ................................................................................................................................................... - 51 - 
2  Status Monitoring ........................................................................................................................................... - 53 - 
2.1  TELNET ........................................................................................................................................................ - 53 - 
2.2  Status Window of ezManager ......................................................................................................... - 55 - 
Additional Functions ........................................................................................................... - 59 - 
1  Security ................................................................................................................................................................ - 59 - 
1.1  Access Restriction (ezTCP Firewall) ................................................................................................ - 59 - 
1.2  Setting Password .................................................................................................................................... - 59 - 
1.3  Using WEP ................................................................................................................................................ - 60 - 

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1.4  Using WPA-PSK ...................................................................................................................................... - 60 - 
1.5  Using WPA-Enterprise.......................................................................................................................... - 61 - 
1.6  Advanced Settings ................................................................................................................................ - 62 - 
2  Option Tab Functions .................................................................................................................................... - 63 - 
2.1  Notify IPv4 Change ............................................................................................................................... - 63 - 
2.2  Sending MAC Address ........................................................................................................................ - 64 - 
3  Serial Port Tab Functions ............................................................................................................................. - 65 - 
3.1  TELNET COM port Control Option (RFC 2217) - ① .............................................................. - 65 - 
3.2  Disable TCP Transmission Delay - ② ........................................................................................... - 65 - 
3.3  Data Frame Interval - ③ .................................................................................................................... - 66 - 
3.4  Separator - ④.......................................................................................................................................... - 66 - 
3.5  TCP Server / Client mode - ⑤ ........................................................................................................ - 66 - 
4  Additional Functions...................................................................................................................................... - 67 - 
4.1  Wireless RSSI(Received Signal Strengh Indication) function ............................................. - 67 - 
4.2  Factory Reset ........................................................................................................................................... - 68 - 
Checklist in Trouble ............................................................................................................. - 69 - 
1  Searching problem with ezManager ...................................................................................................... - 69 - 
2  Connection Problem over TCP/IP ............................................................................................................ - 70 - 
3  Data Communication Problem on the Serial Port .......................................................................... - 71 - 
Technical Support and Warranty ...................................................................................... - 72 - 
1  Technical Support ........................................................................................................................................... - 72 - 
2  Warranty .............................................................................................................................................................. - 72 - 
2.1  Refund ......................................................................................................................................................... - 72 - 
2.2  Free Repair Services ............................................................................................................................. - 72 - 
2.3  Charged Repair Services..................................................................................................................... - 72 - 
Precaution and Exemption from Liability ....................................................................... - 73 - 
1 Precaution........................................................................................................................................................... - 73 - 
2 Exemption from Liability .............................................................................................................................. - 74 - 
2.1 English version ........................................................................................................................................ - 74 - 
2.2 French version ......................................................................................................................................... - 75 - 
Revision History ................................................................................................................... - 77 - 
 
  

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1 Overview

1.1 Overview

Almost all communication devices including PCs communicate over a serial interface.

Serial communication is the standard protocol that transmits and receives data in a bit

order. It is broadly used in the world due to its simple process whilst it has disadvantages

such as distance limitation and high installation/maintenance cost.

CSW-M83 is a module-typed converter that enables serial devices to support TCP/IP

communication through wireless LAN (IEEE 802.11b/g). CSW-M83 carries out the converting

process for users to get to the network using TCP/IP protocol.



To connect CSW-M83 to wireless LAN, a USB wireless LAN adapter which uses

RT3070 or RT5370 chipset of the Ralink Corporation is required.

1.2 Features

⚫ IEEE 802.11 b/g wireless LAN adapter with USB interface (RT3070/5370 chipset)

⚫ Compact Module type

⚫ 1 x UART

⚫ IPv4/IPv6 Dual Stack

⚫ Soft AP mode: support WEP and simple DHCP server

⚫ various WLAN securities: WPA-PSK, WPA-Enterprise(EAP-TLS/TTLS, PEAP)

⚫ Wireless RSSI(Wireless Signal Strength Indication) mode

⚫ stable embedded TCP/IP stack

⚫ easy configuration program (ezManager / web configuration)

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1.3 Application Examples

⚫ 1:1 network with a PC

Figure 1-1 1:1 network with a PC

⚫ 1:1 network with a PC through an AP

Figure 1-2 1:1 network with a PC through an AP

⚫ Internet connection with a xDSL/cable modem

Figure 1-3 INTERNET connection with an xDSL/cable modem

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1.4 Specification

1.4.1 Hardware

Power

Input Voltage

DC 5V (±0.5V)

Current

Typically 115mA (without USB WLAN adapter)

Dimension

40mm x 28mm

Weight

About 6g

Interface

Serial

1 x UART (Baud Rate: 300bps ~ 230,400bps)

3.3V level with 5V tolerant input

WLAN

2.4GHz WLAN, IEEE 802.11b/g

Ralink RT3070/5370 USB Wireless LAN Dongle Required

Temperature

Operating: -20 ~ 70℃ / Storage: -40 ~ 85℃

RoHS

RoHS Compliant

Table 1-1 hardware specification

1.4.2 Software

Protocol

IPv4/IPv6 Dual stack, TCP, UDP, IP, ICMP, ARP, TELNET, DHCP,

DNS lookup, DDNS, Telnet COM Port Control Option(RFC2217),

WEP, WPA-PSK, WPA-Enterprise (EAP-TLS/TTLS, PEAP)

Operation

mode

Normal

For Normal Data Communication

ISP

For Upgrading F/W

Serial Configuration

For Configuration via Serial

Wireless RSSI

For Indicating RSSI by LED

Communicat

ion mode

TCP Server

TCP Passive Connection

TCP Client

TCP Active Connection

AT Command

TCP Passive / Active Connection

UDP

Major

Utilities

ezManager

Configuration Utility for MS Windows

ezVSP

Serial to TCP/IP Virtual driver for MS Windows

Table 1-2 software specification

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1.4.3 Dimension

⚫ Top view

Figure 1-4 top view

⚫ Side / Bottom view

Figure 1-5 side / bottom view



According to conditions of soldering components, the dimensions might be differed

with the above figure.

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1.4.4 Pin assignment

⚫ CON1 / CON2

CON1 and CON2 have headers of 2mm pitch and there are square marks around

both of the first (#1) pins.

CON1

Name

Description

Direction

1

GND

Ground

-

2

SYS_RST#

System Reset (Active Low)

- Recommended reset time: over 200㎲

IN

3

ISP#

ISP pin (to enter ISP mode)

IN

4

TCP#

TCP connection state (Established: Low)

OUT

5

RXD

UART IN

IN

6

TXD

UART OUT

OUT

7

CTS

UART CTS

IN

8

RTS

UART RTS(RS232)

UART TXDE(RS422/485)

OUT

9

DRXD

Debugging port (UART IN)

IN

10

DTXD

Debugging port (UART OUT)

OUT

11

LINK_Q#

Link Quality

IN

12

CONFIG#

Configuration mode / Factory Reset

IN

Table 1-3 CON1

CON2

Name

Description

Direction

1

STS_LED

Status LED

OUT

2

LINK_LED#

WLAN LINK LED (Established: Low)

OUT

3

RXD_LED#

WLAN RXD LED (Data Received: Low)

OUT

4

TXD_LED#

WLAN TXD LED (Data Transmitted: Low)

OUT

5

NC

This pin is Not Connected

-

6

5V

DC 5V IN

IN

7

GND

Ground

-

8

USB_VBUS

supplying power to USB module (DC 5V)

OUT

9

GND

Ground

-

10

USB_D-

IN/OUT

11

USB_D+

IN/OUT

12

GND

Ground

-

Table 1-4 CON2

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1.4.5 Serial Port Parameters

Parameter

Value

Number

1

Type

3.3V level with 5V tolerant input

Baud rate

300 ~ 230,400 [bps]

Parity

NONE / EVEN / ODD / MARK / SPACE

Data bit

8 / 7 / 6 / 5

Stop bit

1 / 2

Flow control

NONE / RTS/CTS / Xon/Xoff

Table 1-5 serial port parameters



Note that the duration of [Stop bit] will be not 2 bits but 1.5 bits, if you set [Data

bit] to 5.

1.4.6 Voltage Parameters

Parameter

Description

Min.

Typical

Max.

Unit

VDD

Supply Voltage

3.0

3.3

3.6

V

VIH

High-level input voltage

2.0

-

V

VIL

Low-level input voltage

-

0.8

V

VOH

High-level output voltage

2.9

-

V

VOL

Low-level output voltage

-

0.4

V

Table 1-6 voltage parameters

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1.4.7 an Application Circuit

Figure 1-6 application circuit

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1.5 Evaluation Board

The evaluation board for CSW-M83 is equipped with an RJ45, D-SUB 9 pin Male

connector and a DC power connector.

Figure 1-7 evaluation board of CSW-M83

1.5.1 Components

① D-SUB 9 pin male connector for RS232 connection

② USB socket for a USB type WLAN adapter

③ Connector for supplying 5V DC power

④ JP3: Jumper for connecting / the Line driver for RS232 port.

Division

ON

OFF

using RS232

using 3.3V

Figure 1-8 jumper positions of JP3

⑤ LED indicators 1

Name

Color

Description

RXD (D7)

Green

blinking when receiving data from the serial port

TXD (D8)

blinking when transmitting data to the serial port

CTS (D9)

ON while the counterpart’s RTS is ON.

RTS (D10)

ON while CSW-M83 can receive data from the serial port

Table 1-7 LED indicators 1

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⑥ LED indicators 2

Name

Color

Description

TCP# (D1)

Green

ON while TCP connection is established

3.3V (D2)

Red

ON while the power is being supplied

STS# (D3)

Green

ON while TCP connection is established

blinking every second with obtaining an IP address

blinking four times at once without obtaining an IP address

LINK# (D4)

Green

ON when a wireless LAN is linked

blinking when a wireless LAN is not linked

RXD# (D5)

Green

blinking when receiving data from the network

TXD# (D6)

Green

blinking when transmitting data to the network

Table 1-8 LED indicators 2



Please refer to the chapter 7.4.1, if you want to know operation of indicators in the

case of using Wireless RSSI function.

⑦ JP2: jumper for changing modes

Mode

3.3V

ISP

GND

Normal

Serial Configuration

Less than 1 sec

Figure 1-9 jumper positions of JP2

⑧ Console(JP5): port for debugging messages

⑨ Factory(JP4): port for production and special functions

Name

Description

#2

This pin is connected to LINK_Q# for LINK Quality Indication.

#3

This pin is connected to CONFIG# for Changing mode to serial

configuration or initializing ENV. (Factory Reset)

Table 1-9 JP4

⑩ CON1: All pin is connected with CON1 of CSW-M83

⑪ CON2: All pin is connected with CON2 of CSW-M83

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⑫ LED indicators 3

Name

Color

Description

LD1

Green

In Normal mode: same operation with STS# LED

In ISP mode: blinks every second

LD2

Orange

On while supplying power to the USB port

Table 1-10 LED indicators 3

⑬ Reset switch: a button which resets power of evaluation board

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2 Installation and Test

2.1 Wireless LAN Overview

CSW-M83 supports IEEE802.11b/g called wireless LAN briefly. It has two network

topologies and those are Infrastructure and Ad-hoc mode.



A USB wireless LAN adapter using RT3070/RT5370 chipset is required using WLAN.

2.1.1 WLAN mode: Infrastructure

In this mode, every wireless LAN station communicates through an Access Point (AP),

which is able to interface with both wireless LAN and Ethernet, so that all stations can be

connected to Ethernet.

Figure 2-1 infrastructure mode

Select [Infrastructure] on [Wireless LAN] tab of ezManager.

Figure 2-2 setting of Infrastructure



You can download ezManager on our website.

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2.1.2 WLAN mode: Ad-hoc

This is an easy way to set up network since wireless LAN stations communicate each

other without an AP in this mode. Therefore, you can easily make this network. It is suitable

for a small scale network if wired LAN is not available. Usually, it is called peer-to-peer

mode.

Figure 2-3 Ad-hoc mode

Select [Ad-hoc] on [Wireless LAN] tab of ezManager.

Figure 2-4 setting of Ad-hoc

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2.1.3 WLAN mode: Soft AP

Soft AP (Software embedded Access Point) is a mode that a wireless client can act as an

AP through software embedded AP functions. Using this mode, the wireless client allows

you to communicate with not only laptops and smartphones but also devices without Ad-

hoc function.

CSW-M83 supports Soft AP function. While operating in this function, it has an IP

address of 10.1.0.1 and assigns one of 10.1.X.X IP addresses to each wireless client. (A

simple DHCP server)

Figure 2-5 Soft AP mode

Although this function is automatically operated in Serial Configuration mode, you can

set this function manually on [Wireless LAN] tab of ezManager like the figure below.

Figure 2-6 setting of Soft AP



You can download ezManager application for a smart phone on our website.

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2.1.4 Key terms

⚫ SSID(Service Set Identifier)

It is a name to identify wireless LAN. So, every single station should have the same

SSID to communicate in the network. In the case of infrastructure mode, you have to

set the same SSID at an AP to CSW-M83. Otherwise, it will not communicate at all.

The maximum length of this parameter is 31 bytes and the default is “sollae”.

⚫ Channel

Wireless LAN stations communicate through the ISM (Industrial, Scientific, and

Medical) band which has the range of frequencies around 2.4GHz or 5GHz. IEEE

802.11 specification divides this band into 14 channels. If you install more than one

wireless network in the same area, the channels should be set an interval of more

than 4 channels to avoid interferences.

2.1.5 Authentication and Security

⚫ Authentication

A wireless LAN station should get authentication from the AP in the infrastructure

network. There are two methods for the authentication, Open system and the Shared

key.

⚫ WEP (Wired Equivalent Privacy)

The WEP is a security protocol for wireless LAN. You need to set 64-bit or 128-bit key.

You can use both hexadecimal and ASCII code for this.

⚫ WPA (Wi-Fi Protected Access)

WPA is a security standard for users of devices equipped with wireless connection. It

is expected to replace the weakness of the original wireless security standard, Wired

Equivalent Privacy (WEP). There are two modes about the user authentication in WPA

security. One is Enterprise which has an authentication server and the other is PSK

(Pre-Shared Key) which does not have any servers.

⚫ WPA2

As final security of Wireless LAN, The Counter Mode with Cipher Block Changing

Message Authentication Code Protocol (CCMP) was suggested for IEEE80211i

(Wireless LAN standard) to replace the TKIP. CCMP uses Advanced Encryption

Standard (AES) which is adopted by WPA2. WPA 2 has also both Enterprise and PSK

mode.

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2.2 Installation

Before testing CSW-M83, make sure that a connection between your PC and CSW-M83 is

established via Serial and wireless LAN. This section is an example which is based on

Infrastructure mode.

Figure 2-7 WLAN and RS232 connection using a laptop

2.2.1 Making Wireless LAN link

When you connect an AP or wireless LAN adapter to your PC, Wireless LAN link is not

automatically established. Therefore, its parameters should be set on CSW-M83 beforehand.

⚫ Setting by Serial

① Supplying Power

Supply power to the board.

② Entering Serial Configuration mode

Change the operation mode to Serial Configuration mode.

③ Reading environmental parameters

Run ezManager and open the COM port. And then, press the [Read] button.

Figure 2-8 reading environmental parameters

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