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CSE-H21 User`s Manual

1. 11 1 53 esd MEE cible 13 2 1 Installation Method eee tient Re e retenta bebes pereo tici resedit reden 13 211 Checking the Communication Environment ettet teen 13 212 Connecting to the Network testet tentent ttt ettet tetto 14 213 Configuring the Environmental Variables rettet ttti 14 14 221 Changing PC IP Address panonna 14 222 Installing Ue UR erecta E HERE 14 223 Configuring CSET sse uae et AE E erp 14 224 Communication 16 3 eeclesie eti 19 3 1 IP Address Environmental Variables 19 3 2 Configuring With ezManager eterne ttti 19 321 2 19 3 222 B ttons OF ez Manager itti pistes 20 323 Parameters of 7 20 324 Matters to be attended to tette ttti ttti ttti 21 33 AT TL 21 3 4 Notify IP Change citet ueste
2. 39 6 62 Example of Active Connection With host name ettet 39 6 63 Example of passive 40 6 7 Example of TCP 40 6 7 1 Example of active disconnection trente ttt ttt 40 672 Example of passive disconnectilon tentent tette ttti ttettnttis 40 7 Security Protocols amp 41 41 Add SSE Socket l ayeE itai tiet 41 71 2 How to set the SSL on GSE FIZT user esee sete bin eet reboot 4 RESC ONeererinenenenorunirnanronanananeniiideuneniiidinieriiiidenie riii iiiad anaa 42 VEI E 42 VERMES EAYUICRmJ M 42 722 How to set the SSH on 21 42 LEA EP Ur Ludsic M 43 pre IEW alll 44 8 Technical Support Warranty and 45 Gill Technical Support eet eec tpe qi rmi quie ep eH URSI Ret PR ed 45 6 2 Wartabty ecce EB ERRARE Ed 45 CPNENTCIT E 45 822 Repair Services i iter e intere 45 6 23
3. 0 Byte s Clear Open Close 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 10 1 0 1 1470 And the STS indicator will be on 2 Sollae Systems Co Ltd 16 http www ezTCP com CSE H21 User Manual Ver 2 1 Simple Test 30 31 32 33 34 35 36 37 101234567 38 39 189 Data Length 10 13 Received Data TCP Client Local 2 ESI Port Keep Alive 10 1 0 1 1470 Ready 30 31 32 33 34 35 36 37 101234567 38 39 189 Received Data 0 COM Port Baudrate Parity Data Bits Stop Bit Flow Control open 19200 none wie lbit v COMI Closed Press the Open button after selecting serial port that is connected to the CSE H21 If the serial port is open the COMI the COM port has opened message will be shown Simple Test Receive 30 31 32 33 34 35 36 37 101234567 38 39 189 Received Data 0 Byte s TCP Client Local Port Peer Address Peer Port Dkeep Alive 10 1 0 1 1470 Ready 30 31 32 33 34 35 36 37 101234567 38 39 189 Data Length 10 Parity Data Bits Stop Bit Flow Contrd 19200 v none 8 151 none 1 Closed If you press Send Data button on the LAN part the data shown in the Send box will be transmitted to the Receive box on the RS232 part Bottom 2 Sollae Sy
4. to connect After this command CSE H21 query the AT PRHN www sollae co kr CR host name to the name server After getting the IP address it sets to the PRIP parameter AT PRP 1470 lt CR gt gt Setting remote port number to connect CR LF OK CR lt LF gt CR LF OK CR LF Command OK ATDT CR Connecting to the host Attempting to connect to the host c When being established the active TCP connection the Local Port number may be changed to temporary values 2 Sollae Systems Co Ltd 39 http www ezTCP com CSE H21 User Manual Ver 2 1 6 6 3 Example of passive Connection ENDO p manoegeam e Pan connacion commands 6 7 Example of Disconnection 6 7 1 Example of active disconnection CSE H21 disconnects the connection Famejerepata Fame Changing online state to AT command siate Changed to AT commend siate ter asconnecton command lt Commend ox 6 7 2 Example of passive disconnection The remote host disconnects the connection ee Data Communication during TCP connection The remote host disconnect the connection lt CR gt lt LF gt NO TCP disconnected CAR
5. 2 Sollae Systems Co Ltd 41 http www ezTCP com CSE H21 User Manual Ver 2 1 Make a certificate with a cert new command The certificate is a self signed Telnet 10 1 0 1 sh gt cert new generating self signed host certificate 551 done BEGIN CERTIFICATE TICIZCCAc2 gAwI BAgI BATANBgkghki G9wOBAQOF ADCBKDELMAKGAIUEBhMCS1I x EDAOBgNVBAgTBO luY2h1h2 4xD JAMBgNVBACTBUShbUd1MRcwFQYDVOQKEwSTb2 xs UugU3lzdGVtczERMABGA1UECXxMIUmVZZWFyY2 gxETAPBgNVBAMTCDEwL jEuMC4x SAwHgY JKoZIhvcNAQkBFhFzdxBwb 33 00GV6dGNwLmNvbT AeFwO1MDAxMDEwMDAw DBEaFwOOOTEyMzEyMzLSNT 1 aMIGOMQswCQYDVQQGEwJLU jEQMA4GATUECBMHSWS j aGVvbj EOMAwGA1UEBxMFTmFtR 3UxFZAVBgNVBAOTD 1 NvbGxhZSBT exNoZwizMREw wYDVOQLEwhSZXNTYXJ j aDERMABGALUEAXMIMT AUMS 4wL JExIDAeBgkqhkiG9w0B QEWEXN1cHBvcnRAZXp Y 3AuY2 9tMFwwDQY JKoZI hvcNAQEBBOADSwAwSAJBALtp RCISxkUC1N3lD6u7ThQP5Cw54QU41nGR4C cY dqvbTXegqop8U1HitBUg57z6uej f 3KYFqGw2 1 hghnOUPOCAWwEAAAaMOMA4WDAYDVROT BAUWAWEB ZANBgk qhkiG9w0B juh4EIIvKgWycwB8GDChpo fw6L13trBE0 7022kQYf 7pBEaRIds Subx xNWeel gxzB amp MGZqnqJOplawcL4zZGwrQ END CERTIFICATE ert host certificate exist replaced to new one sh Save parameters for SSL with the ssl save aa55cc33 command Telnet 10 1 0 1 save aab55cc33 RSA CERT host ok 7 1 3 Restriction To use the SSL with CSE H21 there is a restriction You can use only one serial port 1 if you set the SSL fu
6. Manual 2 1 5 4 ATC AT Command In ATC mode the user can control the CSE H21 in a similar way to controlling the modem using AT command In ATC mode only a TCP connection is possible and both the server and the client can be configured In ATC mode the AT command allows the user to set environment variables including the IP address and control TCP connection and disconnection Remote Host Listen Set and port by using AT commands Request TCP connection Accept TCP connection DATA ABC DATA ABC TCP IP DATA DEF TCP IP DATA DEF lt connection sequence active connection Remote Host Set IP and port by using AT commands Listen on Request connection Accetp TCP connection onnected DATA ABC TCP IP DATA DEF TCP IP DATA DEF ATC connection sequence passive connection DATA ABC e For detailed information on AT commands please refer to the 7 ATC mode 2 Sollae Systems Co Ltd 34 http www ezTCP com CSE H21 User Manual Ver 2 1 5 5 U2S UDP U2S is a mode that performs UDP communication In UDP communication data is sent in block units Therefore data that comes through CSE H21 s serial port must be classified in block units to send it elsewhere The block unit classification process is performed as the following When the amount of received data via CSE H21 serial port is as same as previously designated dat
7. Data bits Parity Stop bit Table 1 3 RS232 Parameters None Even Odd Mark Space Flow Control CSE H21 supports RTS CTS Hardware Flow Control Telnet COM Port Control Option RFC2217 2 Sollae Systems Co Ltd 9 http www ezTCP com CSE H21 User Manual Ver 2 1 CSE H21 has Telnet COM Port Control Option function that is specified by RFC2217 If the Telnet COM Port Control Option is enabled CSE H21 sends the CTS DSR control signal to the communication counterpart and CSE H21 sets its serial port items RTS DTR Baud rate data bits parity stop bit after getting information from the communication counterpart Disable TCP Transmission Delay If you use this option CSE H21 sends the data from the serial port to Ethernet as quickly as possible Data Frame Interval Before sending data from the serial port to Ethernet ezTCP gathers data in the buffer If there is no data during the time which is configured in the Data Frame Interval ezTCP will send data to the network In case the value is set to 0 data will be sent immediately Please set this value to 11 or higher values for correct operation TX Delay CSE H21 has a function that delays its serial data for user s slow device User can set the interval between byte and byte which are outputting from CSE H20 s serial ports Its unit is byte Server Client mode This mode is available on TCP client m
8. 2 Sollae Systems Co Ltd 46 http www ezTCP com CSE H21 User Manual 2 1 9 Revision History Jun 03 2008 O Initial Release NEN 551 and SSH functions Aug 01 2008 11 Add WEEE notation O Modify ISP button function Add AT PRHN Dec 04 2008 12 Add Connect with a host name in Mode Add Close function Jan 07 2009 O Add security function in the ISP mode O Add description of serial I O data capture by using telnet sd command Mar 04 2009 14 mE O Add description of U2S echo Correct Some Expressions O Modify the table of 1 4 2 O Modify the table of 6 7 1 Mar 31 2009 1 5 Correct Some Expressions O Modify 8 1 Technical Support Apr 22 2009 O Modify the table of 1 4 2 O Add description of Send MAC Address function Add description of AT PSE command O Add description of changing local port in ATC mode O Add description of Termination of TCP connection in TELNET Jul 13 2009 17 Update most of pictures including ezManager and Telnet O Modify the 3 2 Configuration with ezManager O Modify the description about F W upgrade O Modify the 3 6 Notify IP change Change the form of document Correct some expressions O Document style has been changed CERES T O Hyperlink of technical support home page has been changed O The table of Specification has been modified Aug 03 2011 1 9 O Add description of serial options FIFO D
9. Operating Temperature 40 85 C MIC SLS CSE H21 A Certification CE F690501 SP EMY000088 FCC F690501 RF EMY002716 RoHS Compliant 1 3 2 Software PTS TCP UDP IP ICMP ARP DHCP DNS lookup DDNS Dynamic rotoco DNS Telnet COM Port Control Option RFC2217 SSL SSH Online Debugging Function For Normal Data Communication Operation mode Serial Configuration For Configuration via Serial TCP Server TCP Passive Connection Communicat TCP Client TCP Active Connection ion mode AT Command TCP Passive Active Connection Configuration Utility for MS Windows Major ezManager P Supports Downloading F W Utilities 7 Serial to TCP IP Virtual driver for MS Windows 2 Sollae Systems Co Ltd 6 http www ezTCP com CSE H21 User Manual Ver 2 1 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 Ethernet Serial Ports Power Input ISP Switch 10 1008ase T CSE H21 ms Soliae Systems Figure 1 1 CSE H21 Layout 2 Sollae Systems Co Ltd T http www ezTCP com CSE H21 User Manual 2 1 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 indicator
10. 00 30 F9 0A 80 97 180 ip rcvd 10 16 120 43 42 753 00 30 F9 0A 80 97 181 ip sent 10 16 20 43 42 923 00 30 F9 0A 80 97 182 ip rcvd 10 16 20 43 42 943 00 30 F9 0A 80 97 183 ip sent 10 16 20 43 43 184 00 30 F9 0A 80 97 184 ip rcvd 10 16 20 43 43 214 00 30 F9 0A 80 97 185 ip sent 10 16 20 43 43 384 00 30 F9 0A 80 97 186 ip rcvd 10 16 120 42 23 4141 971 117271 in cant 1N 156 1101 gt 10 16 0 80 1470 ACK 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 ACK 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 ACK 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 80 1470 gt 10 16 0 156 1101 26 156 1101 gt 10 16 0 80 1470 147M gt IN 16 N TER 1101 rg 76 gt lt I Start Capture Save Message Clear Message v Auto Scroll Stop Capture Load Message Close This function is very useful when there are any problems when users install the CSE H21 2000000000o000000 in the user site Sollae Systems Co Ltd 28 http www ezTCP com CSE H21 User Manual Ver 2 1
11. Charged 5 c eee aper re DRIED UTOR 45 8 24 Notes on 45 9 Revisi n HIStOLY sisstscssiccsscseccctccssssestissccedsossscestessosecssaticesdssossetesacsssneesaccadoossosatseascdedsessiceadessen 47 2 Sollae Systems Co Ltd 4 http www ezTCP com CSE H21 User Manual 2 1 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 ezICP 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
12. ien trei Hip c eR Uu d ades 21 341 DDNS Dynamic Domain Name System tette ttti 21 2 Sollae Systems Co Ltd 2 http www ezTCP com CSE H21 User Manual 2 1 342 H 22 4 System 23 4 1 Operation 23 411 Normal Anode eei REIHE reed rera 23 412 Serial Configuration 23 213 ISP MOOe 23 414 Comparison between two modes erret ttti 23 4 2 Upgrading EIEIGwAare 24 4 3 Checking current 25 431 E 25 43 2 COMANO 25 44 Check Status in the ezManager eene trennt tenent teen ttti ttetnnnets 27 4 5 Remote Debugging retire ote e 28 5 COMMUNICATION 29 in PU rU Uter terrm ac EUM Tf 29 52 125 TCP Serye kannonnen nean Un Shan Abuses UE Recette 30 521 ICP COMMECHON m 30 522 Serial Data before
13. the Connection tette ttt 30 523 Data TIN TUSTI aaa ette tenta ite te i oe te Eee erbe esee rebos 30 52 4 DISCOMMOCUON R 31 53 COD Client 32 531 Serial Data before the Connection rettet 32 53 2 TaN TU Ra nona n D eee s 32 539 M Dao EE 33 534 33 5 4 AT 34 55 WAS 35 MEE Ea oTo I cec 36 SEG E 36 611 AT command 36 6 2 Basic AT Command Set Example ATD etc 36 6 3 Extended AT Commands Example AT PLIP 37 6 4 Online State and AT Command 37 641 Changing Online State to AT Command State trt 38 642 Changing AT Command State to Online State tren 38 6 5 Example of Configuration with AT 38 S2 Sollae Systems Co Ltd 3 http www ezTCP com CSE H21 User Manual Ver 2 1 6 6 Example of TCP 39 6 6 1 Example of Active
14. 2 Ports RS232 Ethernet Converter CSE H21 User s Manual Version 2 1 2012 06 18 Sollae Systems Ltd http www ezTCP com CSE H21 User Manual Ver 2 1 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 mum 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 2 Sollae Systems Co Ltd 1 http www ezTCP com CSE H21 User Manual 2 1 MENO Ji em 5 WOT NS Wa RR 9s Yo ay eos 1 3 Specificato 6 6 1 3 2 SOWAT M 6 ME M LAD LAV M M 7 1 4 2 LED IndlCators tet ERE 8 1 23 ASP M 8 9 1 5 1 RS232 Port 9 9 152 Ethernet
15. 21 s serial port will not be recognized If it is not 0 the serial data before TCP connection will be temporarily saved to be sent to the host after the connection 5 3 2 Data Transmission When the TCP connection is established the data communication in between the host and the serial device will be established Then CSE H21 will send data according to the Data Frame In other words when the data comes through CSE H21 s serial port it will be temporarily saved in the buffer Then when there is no incoming data during the designated Data Frame CSE H21 will send the saved data If the Data Frame is 0 CSE H21 will send serial port s data immediately The unit used for the Data Frame is 10 milliseconds so CSE H21 rounds down rest of the values 2 Sollae Systems Co Ltd 32 http www ezTCP com CSE H21 User Manual Ver 2 1 5 3 3 Disconnection When the connected host terminates the connection or there is no data communication during the designated Timeout the TCP connection will be automatically terminated The unit used for Timeout is 1 second 5 3 4 DNS If users set the host name instead of the IP address on the Peer Address box CSE H21 query the IP address of the host to its Domain Name Server DNS The IP address of DNS can be configured on ezManager If you set incorrect address on that box the connection won t be established 2 Sollae Systems Co Ltd 33 http www ezTCP com CSE H21 User
16. 3 Rev SYSTEM UPTIME 0 days 00 06 33 43 4 NETWORK INFORMATION Device IP address 10 1 0 1 Subnet mask 255 0 0 0 Gateway 0 0 0 0 Name Server 0 0 0 0 TCP STATE 0 1 ESTABLISHED COMZ LISTEN SERIAL STATUS COMl sio rx 0 net tx 0 net rx 0 sio tx 0 COMZ sio rx 0 net tx 0 net rx 0 sio tx 0 ARP TABLE 10 16 2 156 00 03 ff a0 bl 03 26 TCP IP Connection Name TCP State tty LISTEN 23 2 LISTEN 1471 ESTABLISHED 10 16 2 156 1060 Close this TCP Connection Password Refresh Every 1 Second 2 Sollae Systems Co Ltd 27 http www ezTCP com CSE H21 User Manual Ver 2 1 4 5 Remote Debugging If the Debugging Message field in the OPTION tab of the ezManager CSE H21 transmits debugging messages with UDP port 50006 Then user can get the messages with new window if user presses Debugging Message button as followed Debugging Message Time MAC Address Debugging Message 20 43 41 982 00 30 F9 0A 80 97 172 ip rcvd 10 16 20 43 41 992 00 30 F9 0A 80 97 173 ip sent 10 16 20 43 42 162 00 30 F9 0A 80 97 174 ip rcvd 10 16 20 43 42 182 00 30 F9 0A 80 97 175 ip sent 10 16 20 43 42 362 00 30 F9 0A 80 97 176 ip rcvd 10 16 20 43 42 382 00 30 F9 0A 80 97 177 ip sent 10 16 20 43 42 523 00 30 F9 0A 80 97 178 ip rcvd 10 16 20 43 42 553 00 30 F9 0A 80 97 179 ip sent 10 16 20 43 42 723
17. 5 Communication Mode 5 1 Introduction Normal communication mode is suitable for the purpose of using CSE H21 Normal communication mode can be classified into four modes T2S COD and U2S each of which is described in the following table Table 5 1 Communication Mode Configuring Communic Need for user environmental ation Protocol Connection Equipment Software lt 4 e variable via serial Mode Modification Not needed Impossible i 1 1 Active Needed Possible 11 Passive 1 1 M TCP protocol requires connection process The connection is always established as 1 1 connection At this time the host waiting for connection passive connection is called a server and the one attempting to connect active connection is called a client On the other hand UDP communicates by block unit without connection process As UDP does not require connection numbers of hosts can communicate at the same time 2 Sollae Systems Co Ltd 29 http www ezTCP com CSE H21 User Manual 2 1 5 2 T2S TCP Server In T2S mode the CSE H21 functions as a server When a host connects to predefined local port the CSE H21 accepts a TCP connection When the ezTCP accepts TCP connection then the TCP connection is established After connection is established TCP IP processing is performed on the data coming to the serial port which is then transmitted to the remote host And the TCP IP da
18. Ethernet In other words like other 2 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 e CSE H21 Body e including utilities and documents Option 5V Power Adapter Option RS232 cable for PC connection Option 2 Sollae Systems Co Ltd 5 http www ezTCP com CSE H21 User Manual Ver 2 1 1 3 Specification 1 3 1 Hardware Input Voltage DC 5V 10 Power 158mm x 90mm x 24mm Arm7 Core Serial 2 x RS232 RTS CTS Flow Control eria Baud rate 300bps 230 400bps Serial Port Ethernet 10Base T or 100Base TX Auto Sensing Network Auto MDI MDIX cable auto sense Storage Temperature 40 85 engen
19. For more details about the Notify IP Change please refer to the document on our web site For more details about the ezManager please refer to the manual of ezManager on our web site 2 Sollae Systems Co Ltd 22 http www ezTCP com CSE H21 User Manual Ver 2 1 4 System Management 4 1 Operation Mode CSE H21 can operate in one of two modes normal and ISP modes Normal mode is ordinary data communication mode and ISP mode is used to download CSE H21 firmware through the Ethernet port 4 1 1 Normal mode The normal mode is an operation mode that CSE H21 s works for normal purposes If CSE H21 boots up without any other treatment it works in the normal mode c Please refer to the 5 Normal Mode 4 1 2 Serial Configuration Mode If you press the switch on the side of the body in the normal mode for 20ms 1s it works in the Serial Configuration Mode You can set the environmental variables through the COMI port in this mode 4 1 3 ISP Mode If you press the switch on the side of the body in the normal mode over 1 second it works in the ISP mode You can download new firmware to CSE H21 with hotflash program that is a TFTP client through the Ethernet And you can configure the CSE H21 in the ISP mode even though you forget its password or you can t access the CSE H21 because the Access Lock function is enabled All security functions are disabled in the ISP mode 4 1 4 Comparison between two modes The fo
20. Manager you can see the Windows Firewall menu directly 2 Sollae Systems Co Ltd 14 http www ezTCP com CSE H21 User Manual 2 1 For simple test we recommend that the variables keep default values as shown in the below table Parameter Value Network Local IP Address 10 1 0 1 Subnet Mask 255 0 0 0 Option Telnet Enabled IP Address Search Enabled Serial Port COM1 2 2 Sollae Systems Co Ltd Serial Type RS232 Baud Rate 19200bps Parity NONE Data Bits 8 Stop Bit 1 Flow NONE Communication Mode T2S TCP Server Local Port 15 1470 1471 http www ezTCP com 2 2 4 Communication Test CSE H21 User s Manual Ver 2 1 Power the CSE H21 off and on then it tries to connect to the LAN A program for testing starts if you press the Simple Test button of the ezManager Simple Test LAN Send Receive 30 31 32 33 34 35 36 37 01234567 38 39 189 Received Data 0 Byte s Data Length 10 15 Apply Save clear TCP Client Local Port Peer Address Peer Port Keep Alive 119 Ready 25232 Send Receive 30 31 32 33 34 35 36 37 101234567 38 39 189 Data Length 20 Received Data Pr Apply COM Port Baudrate con 19200 Parity none 8 v lbit L Data Bits Stop Bit Flow Control
21. RIER CR LF 2 Sollae Systems Co Ltd 40 http www ezTCP com CSE H21 User Manual Ver 2 1 7 Security Protocols amp Option 7 1 SSL 7 1 1 SSL Secure Socket Layer SSL is cryptographic protocol that provides secure communication on the Internet The SSL works over TCP 7 1 2 How to set the SSL on CSE H21 To works for SSL you have to set the SSL related parameters as the following steps Set the SSL check box in the ezManager Network Option Serial Port Option v Telnet Address Search C Address Debugging Message Multiple Connection SSH Log in the CSE H21 with telnet client Generate an RSA key with a command CSE H21 supports 512 768 and 1024 length keys Command Format rsa keygen key length Telnet 10 1 0 1 sh rsa keygen 512 seal 10sec required to find two 256bits prime numbers please wait rsa find 256bits random prime p 1 2 4 7 8 11 14 17 23 32 37 38 41 52 56 59 62 73 76 79 83 88 91 92 101 107 127 133 137 142 146 148 151 154 161 169 172 176 17988 184 193 197 199 206 212 214 221 224 226 239 242 244 254 263 266 272 283 287 289 301 304 307 311 322 332 338 found rsa find 256bits random prime q 1 2 7 8 10 16 17 23 25 28 32 35 46 55 56 62 70 71 73 76 85 88 95 116 118 121 122 127 133 136 142 146 148 155 160 161 175 188 f pair public private key generated rsa key validation _ _ exist replaced to new key
22. a Event Byte Event Byte or the duration of the data exceeds Data Frame the incoming data will be recognized as one block This block will be sent to UDP Timeout is in 10ms Since UDP communication does not involve establishing connection N M communication may be performed using broadcast Therefore it can be conveniently in changing RS 485 multi drop type network to Ethernet Remote Host ezTCP Serial Device AB 9mS c DATA ABC UDP AS DATA A UDP 10ms Be 9ms DATA UDP lt U2S Transmission sequence Byte Count 3 Guard Time 1 gt In addition if the Peer Address and Peer Port are set to 0 U2S echo functions will be applied This option allows it to send UDP packets according to the source IP address in the last packet which is received By using this CSE H21 can send multiple hosts one by one This function is available on 1 2H or subsequently released firmware version 2 Sollae Systems Co Ltd 35 http www ezTCP com CSE H21 User Manual Ver 2 1 6 6 1 CSE H21 can be controlled by AT commands ATC mode For example the peer host IP address can be set by AT PRIP command and connect to the host by ATD command Therefore CSE H21 communicates several hosts alternatively And also it provides passive connection function by ATA command 6 1 1 AT command format AT c
23. able on 1 2H or subsequently released firmware version User can monitor the input output data of CSE H21 s serial ports with the sd command The way of using this command is like below sd SPACE of Serial Port SPACE Interval The value of of Serial Port is that COMI is 1 and 2 15 2 Interval means duration of capturing and printing data on your screen and its unit is mille second ms For example if you want to capture the data in every second the value of Interval should be 100 Telnet 10 1 0 1 sh gt sa 1 100 1 dump buffering time 1000ms lsh sd 2 100 1000ms 65 66 67 68 69 6a gt 6b 6c 6d 6f lt 70 71 lt 72 73 lt 74 Termination of TCP connection Using sc command users can terminate established TCP connection The way of using this command is like below sc SPACE Name of Serial Port SPACE close Telnet 10 1 0 1 sh sc comi close coml closed sh 2 Sollae Systems Co Ltd 26 http www ezTCP com CSE H21 User Manual Ver 2 1 4 4 Check Status in the ezManager If you press the STATUS in the ezManager you can monitor the current status of CSE H21 If user sets Refresh Every 1 second option the status data will be updated in every second And user can close the TCP connection in the TCP IP Connection window with mouse right button UBS chatty Status FIRMWARE VERSION CSE H21 1
24. ager 3 2 3 Parameters of ezManager Local IP Address Subnet Mask Network Gateway IP DNS IP Address Protocol Interval Port Data Type DDNS ID DDNS Notify IP Change Password Host Name dynDNS custom Network Obtain an IP From The First Received Packet Obtain an IP Automatically DHCP Option Obtain an IP Automatically PPPoE PPPoE ID PPPoE Password Obtain DNS Server Address Automatically ezTCP Firewall IP Address Network Mask Apply To ezManager Serial Type TTL Baud Rate Parity Data Bits Stop Telnet IP Address Search Send MAC Address Option Debugging Message SSL SSH Multiple Connection Option Allowed MAC Address Allowed IP Range 2 Sollae Systems Co Ltd 20 http www ezTCP com CSE H21 User Manual Ver 2 1 acs Bit Flow Control DTR DSR TX Interval Communication Mode Peer Address TCP IP Peer Port Local Port Event Byte Timeout Data Frame 3 2 4 Matters to be attended to ezManager can be used when you want to change your 5 environment variables In case of CSE H21 two interfaces are supported and those are Ethernet and RS232 port Using Ethernet Port For use ezManager through Ethernet CSE H21 should be connected with PC on networks If they are located at the same network Search All on the MAC tap could be used with MAC address If they are connected on Internet Read on the IP tap could be used Using RS232 Port For use ezMan
25. ager through RS232 not only the CSE H21 should be connected to PC with RS232 cross cable but also has to be operated as serial configuration mode 3 3 AT command In ATC mode the user can set environment variables through the serial port using AT command For more information See 7 ATC Mode 3 4 Notify IP Change In internet environment most host get IP addresses dynamically In this case it is very hard to communicate to the host because the IP address is changed dynamically The IP Change Trap service solves this problem There are 3 types DDNS TCP and UDP for this service 3 4 1 DDNS Dynamic Domain Name System If the CSE H21 obtains its IP address it notices to the service provider Then the service provider serves DNS service So even though user doesn t know CSE H21 s IP address user can connect to the CSE H21 by the host name after DNS looking up The DDNS service provider that the CSE H21 supports is only DynDNS http dyn com dns currently e All about service usage of an account could be changed according to the policy of DynDNS 2 Sollae Systems Co Ltd 21 http www ezTCP com CSE H21 User Manual 2 1 3 4 2 TCP UDP In addition CSE H21 can transmit some information to user s TCP UDP servers each period which is set This information is IP address MAC address product ID firmware version and comment The data can be sent as either ASCII or Hexadecimal type e
26. ata frame interval etc 2 Sollae Systems Co Ltd 47 http www ezTCP com gt CSE H21 User Manual 2 1 EE Update a screenshot of ezManager LJ Jan 11 2012 2 0 O Caution about service using of DynDNS has been added O Descriptions of FIFO function has been deleted June 18 2012 21 O Extend the warranty period to two years Change description of network interface Remove description about Memory and DHCP 2 Sollae Systems Co Ltd 48 http www ezTCP com
27. command mode during disconnected AT commands can be used in AT command mode After TCP connection Online Mode AT commands cannot be used To use AT commands during the connection change state to AT command state AT Command State During TCP disconnected AT commands can be used 2 Sollae Systems Co Ltd 37 http www ezTCP com CSE H21 User Manual Ver 2 1 To use AT commands during the connection required escape sequence During TCP connected all serial data to CSE H21 convert TCP Online State and send to Ethernet 6 4 1 Changing Online State to AT Command State To change online state to AT command state during the connection Online State string should be transmitted to CSE H21 as following time interval When transmitting string to CSE H21 string will be sent to peer host The time from final data the first data No data over 500ms guard time of string time intervals between 5 0 500ms Time interval after receiving last No data over 500ms guard time In case of 1 3A or subsequent versions of F W users can select whether data is transmitted or not by using AT PSE command 6 4 2 Changing AT Command State to Online State If CSE H21 s state is in AT command state during TCP connection CSE H21 s state can be changed into online state by an ATO command 6 5 Example of Configuration with AT Command C arerup iszaseazo0 lt
28. cr gt e seting LOCALI manoeaean e GATEWAY lt aivesniaassassasso lt ca gt e Sating Suaner Mas lt CR lt LF gt OK lt CR gt lt LF gt a Command OK E AT PLP 1470 lt CR gt gt Setting LOCAL PORT 4 lt CR gt lt LF gt OK lt CR gt lt LF gt 10 lt gt gt Setting TIME OUT 1 CR LF OK CR lt LF gt a Command OK Saving setting value to EEPROM AT PWP lt CR gt Reset automatically 2 Sollae Systems Co Ltd 38 http www ezTCP com CSE H21 User Manual Ver 2 1 4 CR lt gt lt gt lt LF gt NM Command OK CR LF NO System Reset CARRIER lt CR gt LF 6 6 Example of TCP Connection 6 6 1 Example of Active Connection sum 00 remecissiesizuene seting remote adress mnoeceae Command OK seting remote port number to cones xweanoeceam Command OK BEEN Comectng tothe hast Attempting to connect to the host a conection scons Data Communication 6 6 2 Example of Active Connection with host name Setting the name server s IP address to AT PNIP 168 126 63 1 lt CR gt connect E CR LF OK CR lt LF gt Command Setting host
29. e 8 2 4 Notes on Operation Sollae Systems is not responsible for product failures occurring due to user s alternation of the product Specifications of the product are subject to change without prior notice for performance improvement Sollae Systems does not guarantee successful operation of the product if the product was used under conditions deviating from the product specifications Reverse engineering of firmware and applications provided by Sollae Systems is prohibited Use of firmware and applications provided by Sollae Systems for purposes other than those for which they were designed is prohibited 2 Sollae Systems Co Ltd 45 http www ezTCP com CSE H21 User Manual 2 1 Do not use the product in an extremely cold or hot place or in a place where vibration is severe Do not use the product in an environment in which humidity is high or a lot of oil exists Do not use the product where there is caustic or combustible gas Sollae Systems does not guarantee normal operation of the product under the conditions a lot of noise exists Do not use the product for a purpose that requires exceptional quality and reliability relating to user s injuries or accidents aerospace aviation health care nuclear power transportation and safety purposes Sollae Systems is not responsible for any accident or damage occurring while using the product
30. ed to new key Generate a DSA key with dsa keygen Telnet 10 1 0 1 x Set a username and password to log in with a ssh id command for SSH cse h20 Yeyede ve te te ve de ok Save the parameters for SSH with a ssh save aa55cc33 command Telnet 10 1 0 1 HEE save 55 33 RSA DSA SSH ID SSH_MSG ok 7 2 3 Restriction To use the SSH function with CSE H21 there is a restriction You can use only T2S mode TCP Server mode if you set the SSH function Souad Sollae Systems Co Ltd 43 http www ezTCP com CSE H21 User Manual 2 1 7 3 ezTCP Firewall CSE H21 has two connection limitation functions Those can be set by the Option tab of the ezManager ezTCP Firewall aiiowed MAC Address WES E 88 Allowed IP Range Network Mask Allowed MAC Address If user sets the Allowed MAC Address the only specified host can be connected with the CSE H21 Allowed IP Range When the Allowed IP is set the only hosts that are specified by Allowed IP and Network Mask can connect to the CSE H21 examples Allowed IP Hosts who can connect to the CSE H21 10 1 0 1 255 0 0 0 10 1 0 1 10 255 255 254 10 1 0 1 255 255 255 0 10 1 0 1 10 1 0 254 192 168 1 4 255 255 255 255 192 168 1 4 Apply to ezManager If this option is checked hosts who are not specified above
31. ial port s data immediately The unit used for the Data Frame is 10m seconds so CSE H21 rounds down rest of the values 5 2 4 Disconnection When the connected host terminates the connection or there is no data communication during the designated Timeout the TCP connection will be automatically terminated The unit used for Timeout is 1 second 2 Sollae Systems Co Ltd 31 http www ezTCP com CSE H21 User Manual 2 1 5 3 COD TCP Client In COD mode the ezTCP functions as a client When data of the pre specified size Event Byte comes to the serial port the ezTCP attempts a TCP connection to the TCP port Peer Port of the preset host IP Peer IP Address If the remote host accepts the TCP connection TCP connection will be established Data coming to the serial port after connection establishment is TCP IP processed and transmitted to the remote host And data coming from the remote host is TCP IP processed and transmitted to the serial port for data communication Remote Host ezTCP Serial Device Listen Request TCP connection i Accept TCP connection DATA ABC TCP IP DATA DEF TCP IP DATA GHI TCP IP E lt COD connection sequence WATERMARK 3 gt connected DATA DEF 5 3 1 Serial Data before the TCP Connection Data before TCP connection will be handled based on the Event Byte settings If the Event Byte is 0 the data that comes to CSE H
32. implemented with ezManager whose version is 3 0A subsequent version 2 Sollae Systems Co Ltd 24 http www ezTCP com CSE H21 User Manual 2 1 4 3 Checking current status 4 3 1 Telnet login You can log in the CSE H21 if you enable the Telnet option in the OPTION tab of the ezManager Then you can check the network and serial status after logging in the CSE H21 If you press telnet CSE H21 s IP address the command prompt of Windows you can log in CSE H21 lt lt Telnet 10 1 0 1 SE H21 Management Console v1 3A Sollae Systems sh 4 3 2 Commands Network Status User can monitor network status of CSE H21 with the st net command Telnet 10 1 0 1 local address peer address sendq state 10 1 0 1 23 10 16 2 156 1039 134 ESTABLISHED 10 1 0 1 1471 0 0 0 00 0 0 LISTEN 10 1 0 1 1470 0 0 0 0 0 0 LISTEN Serial Ports Status User can monitor the statuses of two serial ports with the st sio command The tx count and the rx count are the total data sizes to from the serial ports Telnet 10 1 0 1 ME sh st sio port fmax rbmax rxbuf txbuf rx count tx count Checking Uptime With st uptime command you can check the time of your device boots up Telnet 10 1 0 1 Souad Sollae Systems Co Ltd 25 http www ezTCP com CSE H21 User Manual 2 1 Serial Ports data capture This command is avail
33. ion program to be used environment 2 Check Connecting to Check the LINK LED method the network Set by ezManager a utility program for Configuration 3 configuration through the network method Configuring Set by AT commands in ATC mode the IP address related items environmental Configuration Serial port related items parameters items Communication mode depending application program 4 Application to the field 2 1 1 Checking the Communication Environment Before installing CSE H21 check the network environment where CSE H21 is to be installed including the followings matters IP address environment local IP subnet mask gateway DHCP PPPOE etc Serial port type of the equipment to which CSE H21 is going to be connected RS232 Serial port items of the equipment to which CSE H21 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 Security Function SSL SSH 2 Sollae Systems Co Ltd 13 http www ezTCP com CSE H21 User Manual Ver 2 1 2 1 2 Connecting to the Network Connect power to CSE H21 and connect CSE H21 either directly to the Ethernet port of the PC where test is to be performed or to the network hub to which the PC is connected 2 1 3 Configuring the Environmental Variables When network connection is completed configure the environmental variab
34. les such as IP address related items serial port related items and communication mode related items through the LAN using ezManager the environmental variable configuration program 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 PC is set to 10 1 0 2 2 2 1 Changing PC IP Address 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 Ce 2 2 2 Installing CSE H21 Connect the supplied RS232 cable between your PC and CSE H21 the LAN cable to the hub to which the PC is connected or directly to the PC and the supplied CSE H21 power adapter to CSE H21 for power supply If the LAN cable has been correctly connected when power is supplied LINK LED turns on 2 2 3 Configuring CSE H21 Configure CSE H21 setting using ezManager the ezTCP configuration program as follows Run ezManager and click Search All button in the ezManager window And ezManager program will search all CSE H21s on the local network When 7 is searched MAC address of the ezTCP is displayed on the Search Result window The MAC address is indicated at the bottom of the product case Select the corresponding MAC address and set the variables considering your network environment When no ezTCP is found check the Windows firewall If you press Windows Firewall button in the ez
35. llowing is a comparison between the normal mode and the ISP mode Table 4 1 Operation Mode Power on CSE H21 without pressing the ISP button Normal communication Mode the value T2S ATC COD U2S that user set Serial Pressing the ISP Configuring CSE H21 through 115200bps button over 1 second Security options are disabled N 8 1 2 Sollae Systems Co Ltd 23 http www ezTCP com CSE H21 User Manual Ver 2 1 4 2 Upgrading Firmware In ISP mode you can download a firmware CSE H21 operation software provided by our company There is another thing in this mode If you forget your password set before you can reset it by entering this mode In ISP mode all the security options including 7 firewall are removal The following is the firmware downloading procedure Supply power with pressing ISP button or push the button over 1 second then CSE H21 operates in the ISP mode Run hotflash that is supplied by us and input IP address of CSE H21 and select the firmware with the FILE menu Then send it with SEND button Uncheck the Verify firmware version option t hotflash v1 6e ezTCP s Local IP Address 10 1 0 1 L1 Verify firmware version Product Select product v TIMEOUT Second s 1 60 32 1 12 CRC SB3B Downloading QUIT When the downloading is completed CSE H21 automatically reboots and enters normal mode e Firmware download can be
36. nction 7 2 SSH 7 2 4 SSH Secure Shell SSH is a network protocol that allows secure communications between two devices You can use this function if your device is a serial port for console and you need secure communication 7 2 2 How to set the SSH on CSE H21 To works for SSL you have to set the SSH related parameters as the following steps Setthe SSH check box in the ezManager Network Option Serial Port Option Telnet IP Address Search Send MAC Address Debugging Message Multiple Connection Log in the CSE H21 with telnet client Souad Sollae Systems Co Ltd 42 http www ezTCP com CSE H21 User Manual Ver 2 1 Generate an RSA key with a command CSE H21 supports 512 768 and 1024 length keys Command Format rsa keygen key length Telnet 10 1 0 1 EEE sh rsa keygen 512 average 10sec required to find two 256bits prime numbers please wait rsa find 256bits random prime p 1 2 4 7 8 11 14 17 23 32 37 38 41 52 56 59 62 73 76 79 83 88 91 92 101 107 127 133 137 142 146 148 151 154 161 169 172 176 179 184 193 197 199 206 212 214 221 224 226 239 242 244 254 263 266 272 283 287 289 301 304 307 311 322 332 338 found rsa find 256bits random prime q 1 2 7 8 10 16 17 23 25 28 32 35 46 55 56 62 70 71 73 76 85 88 95 116 118 121 122 127 133 136 142 146 148 155 160 161 175 188 f pair public private key generated rsa key validation OK orsa server key exist replac
37. ode only In this mode you don t need to change the mode for switching active or passive TCP connection Note that the Event Byte option should be set to 1 or lager value 2 Sollae Systems Co Ltd 10 http www ezTCP com CSE H21 User Manual Ver 2 1 1 5 2 Ethernet Interface Network part of CSE H21 is configured with Ethernet So what you have to do is only to connect UTP cable The Ethernet part detects LOMbit or 100Mbit Ethernet automatically to connect the corresponding cable It also provides auto MDI MDIX function to detect 1 1 cable or cross over cable automatically Each piece of Ethernet equipment has unique hardware addresses and CSE H21also has factory set hardware address which is called MAC address 8 Figure 1 3 RJ45 Ethernet connector Table 1 4 Ethernet port pin description Output Output Input 1 5 3 Power DC5V is used for CSE H21 and the specification is below 2 Sollae Systems Co Ltd 11 http www ezTCP com CSE H21 User Manual Ver 2 1 02 0 Figure 1 4 5V Power Jack 2 Sollae Systems Co Ltd 12 http www ezTCP com CSE H21 User Manual Ver 2 1 2 Getting Start 2 1 Installation Method You can install CSE H21 in the following steps Table 2 1 CSE H21 Installation steps 1 IP address environment g Check items a ROM P communication mE Applicat
38. ol etc to CSE H21 You can set the IP address and the serial port related items by using ezManager the supplied configuration utility which allows you to configure your CSE H21 over the network or by using AT commands in ATC mode 3 2 Configuring with ezManager 3 2 1 ezManager The basic environmental variables 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 2000 Pro ME XP Pro Home Vista 7 Following is the screen shot of ezManager which is just launched 7 Manager v3 1H 2011 07 20 Search ezTCP MAC IP Serial MAC Address so oo o reaa dk Search Results Local IP Address Network Option Serial Port Product Subnet Mask ly PPPoE PPPoE Password Gateway I2 DNS IP Address Notify IP Change Protocol Interval Minute Port Data Type 47 DDNS_ID DDNS Password Host Name custom View Comment Search All Write Status Simple Test 3 ge Import Variables Multi Write Windows Firewall t Export Variables PING ARP Select binding IP Figure 3 1 the initial window of the ezManager 2 Sollae Systems Co Ltd 19 http www ezTCP com CSE H21 User Manual Ver 2 1 3 2 2 Buttons of ezMan
39. ommands start with AT and end lt CR gt AT command format is followed T The response code to AT command is followed lt CR gt Ox0d LF 0x03 CR 0x0d lt LF gt 0x0a Response Message When ATVI seting When ATO TCP connected When query set value Set value Set value Ex AT PRIIP 6 2 Basic AT Command Set Example ATA ATD etc Listen connection host CSE H21 connection Connecting to host form CSE H21 Echo ED no cho i Output 21 related information nfo ATI3 the firmware version 2 Sollae Systems Co Ltd 36 http www ezTCP com CSE H21 User Manual 2 1 enable result code Result code numeric VO alphabetic V1 6 3 Extended AT Commands Example AT PLIP etc Needed AT PWP after setting PLIP local IP address this parameter PsM subnetmask PGIP default router listening TCP port PRIP Remote machine IP address PNIP Name Server IP address Setting the name server IP Setting the peer host name to connect with double quotation at prhn www sollae co kr After setting this parameter PRHN Remote host name CSE H21 queries the IP address according to the name and set the IP address to the parameter Ce rero macine repon O data transmission enable disable PSE ON 1 OFF 0 when turn to AC command state 6 4 Online State and AT Command State It is AT
40. s Table 1 1 LED indicators Power is Power is supplied CSE H21 is connected to the Green Ethernet There are enough rooms to Green On 1 signal from counter part on serial device Blinks in IP address is assigned every second Yellow Blinks 4 times IP address is net assigned in Ni M or PPPoE modes Green TCP is connected Yellow CSE H21 is in the ISP mode mode RXD blink 2 times Mr CSE H21 is in the Serial Serial LAN TXD sec Configuration mode Configuration STS at one time mode A RS232 cable is connected for 1 TCP the serial configuration 1 4 3 ISP Switch There is an ISP switch on side If this switch is push 20ms 1s it operates as Serial Normal mode 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 2 Sollae Systems Co Ltd 8 http www ezTCP com CSE H21 User Manual 2 1 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 LU 1 Figure 1 2 9 pin D sub male connector RS222 ports Table 1 2 RS232 Port Specification Ring Indicator optional
41. stems Co Ltd 17 http www ezTCP com CSE H21 User Manual Ver 2 1 Simple Test Local Port Peer Addre Connected 10 1 0 1 1470 30 31 32 33 34 35 36 37 01234567 30 31 32 33 3 36 37 01234567 38 39 189 38 39 189 Data Length 10 Is Received Data Save Load Send Data COM Port Baudrate Parity Data Bits Stop Bit Flow Control open none COMI The COM port has opened If you press the Send Data button on the RS232 part Bottom the data shown in the Send box will be transmitted to the Receive box on the LAN part Simple Test 30 31 32 33 34 35 36 37 101234567 30 32 33 34 35 36 37 101234567 38 39 38 39 Byte s Connected 10 1 0 1 1470 RS232 Send 31 32 33 34 35 36 37 1012345 31 32 33 34 35 36 37 101234567 38 39 189 39 189 Data Length 10 Received Data 0 Byte s mmm mem mom cum OQ Bits Stop Bit Flow Control open _ COM Port Baudrate Par COMI The COM port has opened If the transmitting and receiving data are same the communication test is successful 2 Sollae Systems Co Ltd 18 http www ezTCP com CSE H21 User Manual Ver 2 1 3 Configuration 3 1 IP Address and Environmental Variables For TCP IP communication you must set IP address related items In addition you have to set serial port related items serial port type communication speed data bit length parity bit flow contr
42. ta coming from the remote host is TCP IP processed and transmitted to the serial port to establish data communication Remote Host ezTCP Serial Device Listen on local port Request Connection Accept connection NM DATA DATA TCP IP DATA DEF TCP IP DATA DEF lt T2S Mode gt 5 2 1 TCP Connection If a host connects to the pre defined Local Port of CSE H21 the host can communicate bi directionally 5 2 2 Serial Data before the TCP Connection The received serial data before the TCP connection is established will be handled based on the Event Byte settings If the Event Byte is 0 the data that comes to serial port of CSE H21 will not be recognized If it is not 0 the serial data before TCP connection will be temporarily saved to be sent to the host after the connection 5 2 3 Data Transmission When the TCP connection is established the data communication in between the host and the serial device will be established Then CSE H21 will send data according to the Data Frame In other words when the data comes through CSE H21 s serial port it will be temporarily saved in the buffer Then when there is no incoming data during the designated Data Frame CSE H21 will send the saved data If the Data Frame is 0 CSE 2 Sollae Systems Co Ltd 30 http www ezTCP com CSE H21 User Manual Ver 2 1 H21 will send ser
43. two restrictions can t search and configure CSE H21 with ezManager This is enabled when one of restrictions is set at least e All security functions are disabled in the ISP mode So user can access the CSE H21 in the ISP mode even though user can t access the CSE H21 in the normal mode because of the ezTCP Firewall function 2 Sollae Systems Co Ltd 44 http www ezTCP com CSE H21 User Manual Ver 2 1 8 Technical Support Warranty and Precaution 8 1 Technical Support If you have any question regarding operation of the product visit Customer Support FAQ corner and the message board on Sollae Systems web site or send us an email at the following address support eztcp com Website Address for Customer Support http www eztcp com en support 8 2 Warranty 8 2 1 Refund Upon the customer s request to refund the product within two weeks after purchase Sollae Systems will refund the product 8 2 2 Free Repair Services For product failures occurring within on two years after purchase Sollae Systems provides free repair services or exchange the product However if the product failure is due to user s fault repair service fees will be charged or the product will be replaced at user s expense 8 2 3 Charged Repair Services For product failures occurring after the warranty period two years or resulting from user s fault repair service fees will be charged and the product will be replaced at user s expens

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