Sollae systems Cse-h21 User manual

Sollae Systems Co., Ltd. http://www.sollae.co.kr

Serial Device Server

CSE-H21 User’s Manual

Version 1.2

2008-12-04

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 1 -

http://www.sollae.co.kr

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

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 2 -

http://www.sollae.co.kr

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

ISP Switch.....................................................................................................................................................- 8 -

1.5 Interface .................................................................................................................................................................- 9 -

1.5.1

RS232 Port (DB9M)..................................................................................................................................- 9 -

1.5.2

Ethernet Interface .................................................................................................................................. - 10 -

1.5.3

Power........................................................................................................................................................... - 11 -

2GETTING START ................................................................................................................... - 12 -

2.1 Installation Method........................................................................................................................................ - 12 -

2.1.1

Checking the Communication Environment ............................................................................. - 12 -

2.1.2

Connecting to the Network.............................................................................................................. - 12 -

2.1.1

Configuring the Environmental Variables................................................................................... - 13 -

2.2 Test Run............................................................................................................................................................... - 13 -

2.2.1

Changing PC IP Address .................................................................................................................... - 13 -

2.2.2

Installing CSE-H21................................................................................................................................. - 13 -

2.2.3

Configuring CSE-H21........................................................................................................................... - 13 -

2.2.4

Communication Test............................................................................................................................. - 15 -

3CONFIGURATION................................................................................................................. - 18 -

3.1 IP Address and Environmental Variables ............................................................................................. - 18 -

3.2 Configuring with ezManager..................................................................................................................... - 18 -

3.2.1

ezManager ................................................................................................................................................ - 18 -

3.2.2

Buttons of the ezManager ................................................................................................................ - 19 -

3.2.3

ezManager Configuration Items..................................................................................................... - 21 -

3.2.4

ezManager Operation example ...................................................................................................... - 23 -

3.3 AT command..................................................................................................................................................... - 25 -

3.4 Setting DHCP .................................................................................................................................................... - 25 -

3.5 Setting PPPoE ................................................................................................................................................... - 25 -

4SYSTEM MANAGEMENT..................................................................................................... - 26 -

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 3 -

http://www.sollae.co.kr

4.1 Operation Mode.............................................................................................................................................. - 26 -

4.1.1

normal mode ........................................................................................................................................... - 26 -

4.1.2

Serial Configuration Mode................................................................................................................ - 26 -

4.1.3

ISP Mode ................................................................................................................................................... - 26 -

4.1.4

Comparison between two modes.................................................................................................. - 26 -

4.2 Upgrading new firmware ............................................................................................................................ - 27 -

4.3 Checking current status ............................................................................................................................... - 27 -

4.3.1

Telnet login............................................................................................................................................... - 27 -

4.3.2

Commands for checking the status.............................................................................................. - 27 -

4.3.3

Check Status in the ezManager...................................................................................................... - 28 -

4.4 IP Change Trap................................................................................................................................................. - 29 -

4.4.1

DDNS –www.dyndns.com................................................................................................................. - 29 -

4.4.2

TCP/UDP..................................................................................................................................................... - 29 -

4.5 Remote Debugging........................................................................................................................................ - 31 -

5COMMUNICATION MODE.................................................................................................. - 32 -

5.1 Introduction....................................................................................................................................................... - 32 -

5.2 T2S ......................................................................................................................................................................... - 33 -

5.2.1

TCP Connection ...................................................................................................................................... - 33 -

5.2.2

Connection Limitation ......................................................................................................................... - 33 -

5.2.1

Serial Data Before the TCP Connection ...................................................................................... - 34 -

5.2.2

Data Transmission ................................................................................................................................. - 34 -

5.2.3

Disconnection.......................................................................................................................................... - 34 -

5.3 COD....................................................................................................................................................................... - 35 -

5.3.1

Serial Data Before the TCP Connection ...................................................................................... - 35 -

5.3.2

Data Transmission ................................................................................................................................. - 35 -

5.3.3

Disconnection.......................................................................................................................................... - 36 -

5.3.4

DNS.............................................................................................................................................................. - 36 -

5.4 ATC......................................................................................................................................................................... - 37 -

5.5 U2S ........................................................................................................................................................................ - 38 -

6ATC MODE ............................................................................................................................ - 39 -

6.1 Overview ............................................................................................................................................................. - 39 -

6.1.1

AT command format ............................................................................................................................ - 39 -

6.2 Basic AT Command Set (Example: ATA, ATD etc.) ........................................................................... - 39 -

6.3 Extended AT Commands (Example: AT+PLIP etc.)........................................................................... - 40 -

6.4 Online State and AT Command State ................................................................................................... - 40 -

6.4.1

Changing Online State to AT Command State........................................................................ - 41 -

6.4.2

Changing AT Command State to Online State........................................................................ - 41 -

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 4 -

http://www.sollae.co.kr

6.5 Example of Configuration with AT Command................................................................................... - 41 -

6.6 Example of TCP Connection ...................................................................................................................... - 42 -

6.6.1

Example of Active Connection ........................................................................................................ - 42 -

6.6.2

Example of Active Connection with a host name .................................................................. - 42 -

6.6.3

Example of passive Connection ...................................................................................................... - 43 -

6.7 Example of TCP Disconnection................................................................................................................. - 43 -

6.7.1

Example of active disconnection.................................................................................................... - 43 -

6.7.2

Example of passive disconnection................................................................................................. - 43 -

7SECURE COMMUNICATION ............................................................................................... - 44 -

7.1 SSL ......................................................................................................................................................................... - 44 -

7.1.1

SSL (Secure Socket Layer).................................................................................................................. - 44 -

7.1.2

How to set the SSL on CSE-H21 .................................................................................................... - 44 -

7.1.3

Restriction.................................................................................................................................................. - 45 -

7.2 SSH ........................................................................................................................................................................ - 45 -

7.2.1

SSH (Secure Shell) ................................................................................................................................. - 45 -

7.2.2

How to set the SSH on CSE-H21................................................................................................... - 45 -

7.2.3

Restriction.................................................................................................................................................. - 46 -

8TECHNICAL SUPPORT, WARRANTY, AND NOTES ON OPERATION ........................... - 47 -

8.1 Technical Support ........................................................................................................................................... - 47 -

8.2 Warranty.............................................................................................................................................................. - 47 -

8.2.1

Refund......................................................................................................................................................... - 47 -

8.2.2

Free Repair Services ............................................................................................................................. - 47 -

8.2.3

Charged Repair Services .................................................................................................................... - 47 -

8.2.4

Notes on Operation ............................................................................................................................. - 47 -

9REVISION HISTORY ............................................................................................................. - 49 -

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 5 -

http://www.sollae.co.kr

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.

CSE-H21 in ezTCP product group is a product that provides TCP/IP communication

through Ethernet. In other words, like other ezTCP products, CSE-H21 sends data from the

serial port to the LAN after TCP/IP processing and vice versa.

As CSE-H21 has 2 RS232 ports, it can be connected to two RS232 devices in the same

time. And it is easy CSE-H21 to attach to user systems because of its compact size.

Because it has SSL and SSH function, user can communicate more safely. And 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 can be operated wide range temperature condition and its serial ports are isolated

electrically and there is surge protection function on the Ethernet port, so it is very suitable

for noisy industrial environment.

It also provides debugging function, so user can solve the problem with ours.

1.2 Components

CSE-H21 Body

CD including utilities and documents (Option)

5V Power Adapter (Option)

RS232 cable for PC connection (Option)

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 6 -

http://www.sollae.co.kr

1.3 Specification

Power

Input Voltage

5V (±10%)

Current

200mA typical

Dimension

158mm x 90mm x 24mm

Weight

about 340g

Interface

Serial

9 pin Dsub male

Network

10/100 Base T (RJ45)

Serial Port

2 x RS232 (300bps ~ 230400bps, RTS/CTS Flowcontrol)

Network

Ethernet 10/100 M bit auto-sense

Auto MDI/MDIX

Protocols

TCP, UDP, IP, ICMP, ARP, DHCP, PPPoE,

DNS lookup, DDNS(Dynamic DNS)

Telnet COM Port Control Option(RFC2217)

SSL3.0/TLS1.0, SSH

Diagnostic

Online Debugging Function

RoHS

RoHS Compliant

Approvals

MIC: SLS-CSE-H21 (A)

CE: F690501/SP-EMY000088

FCC: F690501/RF-EMY002716

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

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).

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 7 -

http://www.sollae.co.kr

1.4 Layout

1.4.1 Layout

There are an Ethernet port, two RS232 ports, and a Power socket on the top side. And there is

an ISP switch on the right side. And 15 LED indicators are in the CSE-H21.

Figure 1-1 CSE-H21 Layout

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 8 -

http://www.sollae.co.kr

1.4.2 LED indicators

There are 15 LED indicators on the CSE-H21. The left 5 are for LAN status, and the middle and

right 5 are for COM1 and COM2 respectively. The followings are the operations of each LED

indicators.

Table 1-1 LED indicators

Name

Color

LED Status

Description

PWR

Red

Power is on.

STS

Yellow

Blink every 1

second

IP address is assigned.

Blink 4 times

every 1 second

IP address is net assigned in DHCP or PPPoE

modes.

Off

ISP Mode

LINK

Green

CSE-H21 is connected to the Ethernet.

RXD

Yellow

Blink

Ethernet packet is received

TXD

Green

Blink

Ethernet packet is transmitted

TCP

Green

TCP is connected

RXD

Yellow

Blink

serial data are received

TXD

Green

Blink

serial data are transmitted

RTS

Green

There are enough rooms to receive serial

data.

CTS

Yellow

CTS signal from the counter-part serial

device

1.4.3 ISP Switch

There is an ISP switch on the side. If this switch is push 20ms~1s, it operates as Serial

Configuration Mode. If this switch is push over 1 second, CSE-H21 operates as ISP mode. User can

do firmware download to the CSE-H21 in the ISP mode. Please refer to 4.2 for more information

on firmware download.

CSE-H21 User’s Manual Ver. 1.2

Sollae Systems Co., Ltd.

- 9 -

http://www.sollae.co.kr

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. The

serial ports are isolated electrically.

Figure 1-2 9 pin D-sub male connector

RS232 ports

Table 1-2 RS232 Port Specification

Number

Name

Description

level

Dir.

Etc.

DCD

Data Carrier Detect

RS232

Input

optional

RXD

Receive Data

RS232

Input

mandatory

TXD

Transmit Data

RS232

Output

mandatory

DTR

Data Terminal Ready

RS232

Output

optional

GND

Ground

mandatory

DSR

Data Set Ready

RS232

Input

optional

RTS

Request To Send

RS232

Output

optional

CTS

Clear To Send

RS232

Input

optional

Ring Indicator

RS232

Input

optional

Data bits, Parity, Stop bit

Table 1-3 RS232 Parameters

Items

Parameters

Data bit

8, 7, 6, 5

Parity

None, Even, Odd, Mark, Space

Stop bit

1, 1.5, 2

Flow Control

CSE-H21 has RTS/CTS flow-control function.

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