HelloDevice Lite Series LS100 User Guide
Contents
1. o o 5 co m A 2 Serial Port Pinouts The pin assignment of the LS100 DB9 connector is summarized in Table A 2 Each pin has a function according to the serial communication type configuration 12345 6789 Figure A 2 Pin layout of the DB 9 connector Table A 2 Pin assignment of the DB 9 connector Y 5 AJOJN A 3 Ethernet Wiring Diagram HelloDevice Remote Host Tx 1 Tx 1 Tx 2 Tx 2 Rx 3 Rx 3 Rx 6 Rx 6 Figure A 3 Ethernet direct connection using crossover ethernet cable HelloDevice Hub 1 9 9 1 1 Tx 2 2 Rx 3 9 9 Rx 3 Rx 6 9 nx 6 Remote Host 1 e 9 11 Tx 2 4 Tr 2 Rx 3 9 Rx 3 Rx 6 9 9 Rx 6 Figure A 4 Ethernet connection using straight through ethernet cable A 4 Serial Wiring Diagram HelloDevice Tx 3 Rx 2 RTS 7 CTS 8 DTR 4 DSR 6 GND 5 Serial Device Rx Tx CTS RTS DSR DTR GND Figure A 5 RS232 wiring diagram Appendix B Well known Port Numbers The port numbers are divided into three ranges the Well Known Ports the Registered Ports and the Dynamic and or Private Ports The Well Known Ports are those from 0 through 1023 The Registered Ports are those from 1024 through 49151 The Dynamic and or Private Ports are those from 49152 through 655352. where ipmode static for Static IP dhcp for DHCP pppoe for PPPoE parameters if ipmode static par1 IP address par2 subnet mask par3 gateway if ipmode dhcp no parameters required if ipmode pppoe par PPPoE username 2 PPPoE password 22 3 1 Static IP 3 1 1 Overview In the Static IP mode users have to manually specify all the parameters such as IP addresses of the LS100 valid subnet mask and the default gateway IP address IP address is an identification number assigned to a computer as a permanent address on the network Computers use IP addresses to identify and talk to each other on the network Choose the proper IP address which is unique and valid on the network environment A subnet represents all the network hosts at one geographic location in one building or on the same local area network When there is any outgoing packet over the network the LS100 will check whether the desired TCP IP host specified in the packet is on the local network segment with the help of the subnet mask If the address is proven to be on the same network segment as the LS100 the connection is established directly from the LS100 Otherwise the connection is established through the given default gateway A gateway is a network point that acts as an entrance to another network Usually the computers that control traffic within the network or at the local Internet service provider are gateway no
3. get group lt CR gt crono 9 Most serial acia Oj SRR E group is specified shows settings of the group group is omitted shows settings of all groups orydefault option lt CR gt option is omitted all parameters are set with factory default values 7 aljo ll parameters except IP settings set with factory default values ar CR group is omitted shows this screen group is specified shows set command usage of the group save CR Save changes exit CR Exit without rebooting the device reboot CR Exit and reboot the device Fh Q lan fe tar tan Inn pe Fh h O Figure 2 7 The LS100 console screen From the command prompt screen users can set get and save configuration parameter values using set get and save command Users also can exit the console or reboot the device using exit and reboot command The usage of the commands can be found using help command For command usages description please refer to section 2 4 Command Usage 2 3 2 Using Remote Console The LS100 provides remote console feature via telnet as well as serial console so that users can access the LS100 at remote site for configuration and monitoring purpose The IP address of the LS100 must be known before users can access the remote console port The port number for the remote console
4. 4 Command Usage The LS100 provides several simple commands for configuration and control of the LS100 Table 2 2 summarizes command set which LS100 supports Table 2 2 LS100 command set summary Command Description Result set group par1 par2 CR Set configuration parameters If success group ip host serial or admin OK CR lt LF gt configuration parameters Use to If error keep a parameter s value ERROR CR lt LF gt 15 get group lt CR gt Get configuration parameter values group ip host serial admin or status If group is specified shows settings of the group If group is omitted shows settings of all groups Parameter value display help group CR Shows command usage screen If group is omitted shows help screen If group is specified shows set command usage of the group Help message display factorydefault option CR Restore factory default values if option is omitted all parameters are set with factory default values if optionz ip all parameters except IP settings are set with factory default values If success OK CR lt LF gt If error ERROR CR lt LF gt save lt CR gt Save changes If success OK lt CR gt lt LF gt If error ERROR CR lt LF gt exit CR Exit without rebo
5. Table Internet Service Provider Personal Computer Network Interface Card Media Access Control Local Area Network Unshielded Twisted Pair Asymmetric Digital Subscriber Line Address Resolution Protocol Internet Protocol Internet Control Message Protocol User Datagram Protocol Transmission Control Protocol Dynamic Host Configuration Protocol Simple Mail Transfer Protocol File Transfer Protocol Point To Point Protocol Point To Point Protocol over Ethernet HyperText Transfer Protocol Domain Name Service Simple Network Management Protocol Universal Asynchronous Receiver Transmitter Bits per second baud rate Data Communications Equipment Data Terminal Equipment Clear to Send Data Set Ready Data Terminal Ready Request To Send 2 Getting Started This chapter describes how to set up and configure the LS100 in the first place 2 1 Panel Layout explains the panel layout and LED indicators 22 Connecting The Hardware describes how to connect the power the network and the serial device to the LS100 2 3 Accessing Console Port describes how to access the console port using a serial console at a local site or telnet console at a remote site 2 4 Command Usages described how to use command set of the LS100 to configure and view parameter values and status Following items are pre required to get started One DC power adapter included in the package One serial console cable for configuration included in t
6. The Well Known Ports are assigned by the IANA and on most systems can only be used by system processes or by programs executed by privileged users Table B 1 shows famous port numbers among the well known port numbers For more details please visit IANA website http www iana org assignments port numbers Table B 1 Well known port numbers Port number Protocol TCP UDP 21 FTP File Transfer Protocol TCP 22 SSH Secure SHell TCP 23 Telnet TCP 25 SMTP Simple Mail Transfer Protocol TCP 37 Time TCP UDP 39 RLP Resource Location Protocol UDP 49 TACACS TACACS UDP 53 DNS UDP 67 BOOTP server UDP 68 BOOTP client UDP 69 TFTP UDP 70 Gopher TCP 79 Finger TCP 80 HTTP TCP 110 POP3 TCP 119 NNTP Network News Transfer Protocol TCP 161 162 SNMP UDP 43 Appendix C Troubleshooting C 1 Power LED Status Troubleshooting Problem Power LED does Power cable is not Check power connection not light up connected Link LED does not Ethernet cable is not Check Ethernet cable connection light up connected Invalid Ethernet cable is There are two types of Ethernet cables Straight through cable used and crossover cable If you are using an Ethernet hub use straight through cable If direct connection between the LS100 and remote host is used use crossover cable instead ACT LED does not Invalid IP configuration Check IP configuration parameters blink
7. Transition Listen Sync Received Established gt Data gt Closed Listen At start up an initial TCP state is Listen If there is any incoming TCP connection request the state will be changed into Sync Received then Established which means a session is opened For a while data will be transferred between the hosts This is the Data state The session will be disconnected due to the request of one of them which is Closed state And then the state is automatically changed to its original state Listen 29 2 Operations Serial data transfer When a session has been established the LS100 reads the data from the serial port buffer till internal serial buffer is full or inter character time interval reaches the time specified as inter character timeout value Then it transfers the data to the IP address of the remote host If there s no remote host connected to the LS100 all the incoming data from the serial port are discarded Session disconnection The connected session will be disconnected when the remote host sends disconnection request or when no data transfer activity is found through the serial port for a certain amount of time which is nactivity timeout Figure 4 1 shows the State Transition Diagram of the session operations in TCP server mode Incoming TCP connection request Incoming Inactivity time out disconnegtion request Established Inco
8. host mode is TCP server or equivalent If this option is set the incoming TCP connection request will be accepted only when the DSR signal is high state Open close TCP connection is valid only if the host mode is a TCP client or equivalent If the DSR behavior is set to open close TCP connection the high state of the DSR pin will make the LS100 send a connection request to the specified destination host whereas the low state close a connection Inter character timeout defines the interval that the LS100 fetches the overall serial data from its internal buffer If there is incoming data through the serial port the LS100 stores data into the internal buffer The LS100 transfers data stored in the buffer via TCP IP only if the internal buffer is full or if the inter character time interval reaches to the time specified as inter character timeout Optimal inter character timeout would be different according to your application but at least it must be larger than one character interval within specified baud rate For example assume that the serial port is set to 1200 bps 8 Data bits 1 stop bit and no parity In this case the total number of bits to send a character is 10 bits and the time required to transfer one character is 10 bits 1200 bits s 1000 ms s 8 3 ms Therefore you have to set inter character timeout to be larger than 8 3 ms The inter character timeout is specified in milliseconds and must be larger than 10 ms If users w
9. is 23 which is a TCP port number assigned for Telnet Only one user can log into the remote console or serial console at a time If the serial console is established while a remote console is established current remote console will be halted and no more remote console will be established until serial console is finished To access remote console of the LS100 please use the step as follows 14 Run a telnet program or a program that supports telnet functions such as TeraTerm Pro or HyperTerminal The target IP address and the port number should be those of the LS100 If required specify the port number as 23 Type the following command in the command line interface of your computer telnet 192 168 1 254 Or run a telnet program with parameters as follows Tera Term New connection TCPAP Host M iv Telnet port 23 Port come Cancel Help Figure 2 8 Telnet program set up example The user has to log into the LS100 Type the user name and password A factory default setting of the user name and password are both admin If the user logged into the LS100 successfully the same command prompt screen as the one of serial console will be displayed The user can set get save configuration parameters and exit console reboot the device as like the serial console If serial console or the other remote consoles are connected already new console will not be established at all 2
10. serial port of the LS100 is used as the console port as well as the data port To use the serial port as the console port slide Data Console switch to the Console side Remote console Remote users can make a telnet connection to the remote console port port 23 of the LS100 via TCP IP network Both methods require the user to log into the LS100 in order to continue 2 3 1 Using Serial Console 1 Connect the one end of the serial console cable to the serial port of the LS100 Figure 2 5 Connecting a serial console cable to the LS100 2 Connect the other end of the cable to the serial port of user s computer 3 Slide Data Console switch to Console side Figure 2 6 Data Console switch of the LS100 4 Run a terminal emulator program such as HyperTerminal Set up the serial configuration parameters of the terminal emulation program as follows 9600 Baud rate Data bits 8 Parity None Stop bits 1 Hardware flow conirol 5 Press ENTER key 13 6 Type the user name and password to log into the LS100 A factory default setting of the user name and password are both admin 7 If the user logged into the LS100 successfully command prompt screen will appear on the computer as shown in Figure 2 7 login admin Passwords Type help to get command usages gt help Set Crono por snl ap KOR grove 3j mos exexabel oe exea parl configuration parameters Use to keep a parameter s value
11. server and then transfer data through the serial port Thus users can assume that the LS100 is always connected to the specified remote host 2 Operations The only difference from TCP server mode is that the LS100 will try to connect and send serial data to the remote host even if the TCP session is not established The difference from TCP client mode is that it will accept incoming connection request from remote host if the session is not established The detailed operation principles are the same as that of TCP server and TCP client mode TCP connection request rejected Or internal TCP time out In coming TCP Close request TCP connection request accepted Inactivity time out Incoming data via serial port Established AN PN Incoming data from remote host Accept Incoming TCP connection request Incoming data via serial port Figure 4 5 State Transition Diagram of TCP server client mode 35 4 3 2 TCP Server Client Mode Configuration To configure the LS100 to work as a TCP server client mode use set command as follows set host tcpsc listening_port dest_ip dest_port cyclic_connection_interval inactivity_timeout where listening_port listening TCP port dest_ip destination IP address dest_port destination TCP port cyclic_connection_interval cyclic connection interval in minutes inactivity_timeout inactivity timeout in seconds Parameter definitions for TCP
12. server and client mode configuration are the same with TCP server mode and TCP client mode parameters Figure 4 6 shows TCP server client mode setting example SES NOSE COPEC COW EO ci LOO FOO 10 stole OK gt Figure 4 6 TCP server client mode setting 36 5 Serial Port Configuration To attach the serial device to the LS100 serial port its serial port operation should match exactly to that of the serial device Serial port configuration parameters are summarized in Table 5 1 Table 5 1 Serial Port Configuration parameters Parameter Values Baud rate 1200 2400 4800 9600 19200 38400 57600 or 115200 Data bits 7 bits or 8 bits Parity None Even or Odd Stop bits 1 bit or 2 bits Flow control None Hardware RTS CTS DTR option Always HIGH Always LOW or Show TCP connection DSR opto a n DUM Inter character timeout Inter character timeout value in milliseconds To configure serial port parameters use set command as follows set serial baudrate data bits parity stop bits flow control dtr option dsr option interchar timeout ms where baudrate 1200 2400 4800 9600 19200 38400 57600 or 115200 data bits 7z7 bits 8 8 bits parity nznone ezeven ozodd stop bits 1 1 bit 2 2 bits flow control nznone h hardware dir option hzalways high Izalways low szshow tcp connection dsr option nznone azaccept only by high o open close TCP connection interchar timeout inter character t
13. 00 supports RS232 serial communication allowing virtually any asynchronous serial device to be accessed over a network As for the Internet connectivity the LS100 supports open network protocols such as TCP IP allowing serial devices to be accessed over broadband network or conventional LAN Local Area Network environment The LS100 provides the management console using Telnet and serial console port under the password protection support And the LS100 also provides the management function using the HelloDevice Manager Software Utility The LS100 was designed to accommodate the unique requirements of the Retail POS Security Automation and Medical marketplaces Parts of this manual assume the knowledge on concepts of the Internetworking protocols and serial communications If you are not familiar with these concepts please refer to the standards or the documentation on each subject 1 2 Package Check List LS100 external box 110V or 230V Power supply adapter Serial console data cable A hardcopy of Quick Start Guide 1 3 Product Specification Serial Interface One male DB9 serial port for data communication serial console Serial speeds 1200bps to 115200bps Flow Control None Hardware RTS CTS Signals Rx Tx RTS CTS DTR DSR GND Network Interfaces 10 Base T Ethernet with RJ45 Ethernet connector Supports static and dynamic IP address Protocols ARP IP ICMP TCP Te
14. 100 and the remote host by sending keep alive packets periodically If the remote host does not answer the packets it is regarded that the connection is down unintentionally Then the LS100 will force to close the existing TCP connection Note At least this value should be set larger than that of inter character timeout To prevent the unintended loss of data due to the session disconnection it is highly recommended that this value is set large enough so that the intended data transfer is completed Figure 4 2 shows TCP server mode setting example set host tcps 6001 300 OK gt Figure 4 2 TCP server mode setting 31 4 2 TCP Client Mode Operations 4 2 1 Overview The LS100 works as a TCP client and the default TCP state is Closed in this mode The remote host will be either Ethernet Serial communication devices acting as a TCP server or a socket program acting as a TCP server running on users PC 1 Typical State Transition Closed Sync Sent Established gt Data gt Closed At start up an initial TCP state is Closed If there is any incoming data through the serial port the LS100 will try to connect to a user defined remote host Then the state will be changed to Sync Sent which means the connection request is being sent If the remote host accepts the request the state will be changed into Established which means a session has been opened For a while data will be transferred betwee
15. 5 255 OK OK gt reboot 2 Static IP mode ip 192 168 161 5 subnet 255 255 0 0 gateway 192 168 1 1 gt SSE Gp starie 12 168 161 5 255 2585 0 0 19216811 182 168 1 120 255 255 255 255 OK 2 Swe OK gt reboot 26 4 Host Mode Configuration Host mode represents the operating session mode of the LS100 Several host modes are available for the data communication between the serial device and remote hosts Since TCP is connection oriented protocol server client server client modes are provided Table 4 1 shows the brief description of the host modes A factory default host mode is TCP Server Table 4 1 The LS100 TCP IP session modes TCP server Select this mode when users want the LS100 to operate as a TCP server The LS100 stands by until there is any TCP connection request If TCP connection is not already established at that time the LS100 accepts the request and the session is established In the established state it transmits the data through the serial port if there is any data from the remote host Since the LS100 supports only one TCP session for the serial port the additional TCP connection request will be rejected if already established This mode is useful when users want to send data to the serial device at any time they want TCP client Select this mode when users want the LS100 to operate as a TCP client When the serial device sends data or pre defined timer is expired the LS100 tries to es
16. C 2 Serial Console Troubleshooting Serial console is not Invalid serial cable Be sure to use a serial console cable null modem cable for connected serial console Invalid serial port Check serial port configuration of terminal emulation program configuration of terminal 9600 bps 8 Data bits No parity 1 stop bit Hardware flow emulation program control Invalid Console Data Be sure that Console Data switch position is Console side switch position Serial console is IP mode is DHCP but If IP mode is set to DHCP but IP is not actually assigned halted for few IP is not assigned because of DHCP server failure serial console is halted for few seconds periodically seconds at every 20 seconds Change IP mode to the static IP mode Cannot login to Invalid username and or Use valid username and password If username and or console password are lost perform factory default reset using factory reset switch Factory default value of username and password are both admin C 3 Remote Console Troubleshooting Cannot connect to The LS100 is not Use serial console to assign valid IP address to the LS100 the LS100 using assigned valid IP telnet address Someone is using serial Exit serial console and retry telnet connection console 44 Cannot login to Invalid username and or Use valid username and password If username and or console password are lost perform factory default reset using factory reset switch Factory defaul
17. HelloDevice Lite Series LS100 User Guide Version 1 4 4 2011 12 12 User Guide for the HelloDevice LS100 Version 1 4 4 Firmware version 1 4 X Last revised on Dec 12 2011 Printed in Korea Copyright Copyright 2002 2012 Sena Technologies Inc All rights reserved Sena Technologies reserves the right to make changes and improvements to its product without providing notice Trademark HelloDevice is a trademark of Sena Technologies Inc Windows is a registered trademark of Microsoft Corporation Ethernet is a registered trademark of XEROX Corporation Notice to Users Proper back up systems and necessary safety devices should be utilized to protect against injury death or property damage due to system failure Such protection is the responsibility of the user This device is not approved for use as a life support or medical system Any changes or modifications made to this device without the explicit approval or consent of Sena Technologies will void Sena Technologies of any liability or responsibility of injury or loss caused by any malfunction Technical Support Sena Technologies Inc 210 Yangjae dong Seocho gu Seoul 137 130 Korea Tel 82 2 576 7362 Fax 82 2 573 7710 E Mail support sena com Website http www sena com Contents 1 Introduction 5 DEO iL m 5 1 2 Package Check List eet e e teet eq ebrei dae 5 T S Product S
18. IP address gt S60 255425541 OK gt Figure 2 10 Changing only one parameter value example Command usage of set will differ depending on the groups Each set command usage of the group can be found using help group command For example if users want to know how to use set command to configure IP configuration typing help ip lt CR gt will show set command usage for the IP configuration as shown in Figure 2 11 help ip set ip ipmode parl par2 ipmode static Static IP dhcp DHCP pppoe PPPOoE parameters if ipmode static parl IP address par2 subnet mask par3 gateway if ipmode dhcp no parameters required if ipmode pppoe parl PPPoE username par2 PPPOE password Figure 2 11 Help screen example Note The changed values will not take effect until save and reboot commands are invoked For more details please refer to section 2 4 5 2 4 7 2 4 2 get Command With get command users can view the current parameter values and status of the LS100 Basic get command usage is as follows get group lt CR gt where group ip host serial admin or status If group is specified shows settings of the group If group is omitted shows settings of all groups The group means the category where parameters belong to as like set command For example if users want to view parameter values rel
19. ant to send the series of characters into a packet serial device attached to the LS100 should send characters without time delay larger than inter character timeout between characters and the total length of data must be smaller than or equal to the LS100 internal buffer size The serial communication buffer size of LS100 is 1400 bytes Figure 5 1 shows serial port configuration example of 9600 bps 7 data bits even parity 2 stop bits hardware flow control DTR shows TCP connection No DSR behavior and inter character time out of 10 ms 38 Figure 5 1 Serial port configuration 39 6 System Administration Users can configure administrator username password and device name using set command as follows set admin username password devicename username login username password login password devicename device name Figure 6 1 shows administrative parameters configuration example gt set admin adminuser adminpassword LS100_testl OK gt Figure 6 1 Administration parameters configuration 40 Appendix A Connections A 1 Ethernet Pinouts The LS100 uses standard Ethernet connector which is a shielded connector compliant with AT amp T258 specifications Table A 1 shows the pin assignment and the wire color Figure 1 Pin layout of the RJ45 connector Table A 1 Pin assignment of the HJ45 connector White with orange Y 5 Orange White with green Blue White with blue Green White with brown Brown
20. as follows save lt CR gt Saved changes will be applied if the LS100 is rebooted by reboot command or manual rebooting 2 4 6 exit Command With exit command current serial or remote console session will be closed However changed parameters are not applied until the LS100 is manually rebooted Command usage of exit command is as follows exit lt CR gt 20 2 4 7 reboot Command With reboot command the LS100 will be rebooted immediately Changed parameter values will be applied when the LS100 is up again Command usage of reboot is as follows reboot lt CR gt 21 3 IP Address Configuration A valid IP address of the LS100 needs to be assigned before it starts to work in the user s network environment A network system administrator may provide the user with this IP address setting information for the network The IP address must be unique within the network Otherwise the LS100 will not have a valid connection to the network Users can choose the desired IP mode out of the three IP operating modes i e Static IP DHCP and PPPoE The factory default IP mode is DHCP mode Table 3 1 shows the parameter items for IP configuration Table 3 1 IP configuration parameters IP address Subnet mask Default gateway DHCP No parameters required PPPoE username PPPoE PPPoE password Basic set command usage for IP configuration is as follows set ip ipmode par1 par2
21. ated to IP configuration get command as Figure 2 12 can be used Figure 2 12 Getting ip configuration screen status group is a special group where set command does not apply get status will show current system status screen Figure 2 13 Getting status screen If group is omitted get command will show all of the parameter values as shown in Figure 2 14 Figure 2 14 Getting all parameters screen 18 2 4 3 help Command With help command users can find command usage help in the console screen Basic command usage is as follows help group lt CR gt where if group is omitted overall help screen will be displayed if group is specified set command usage of specified group will be displayed Figure 2 15 shows help screen when no group is specified while Figure 2 16 shows help screen with ip group specified gt help ser CREO jasizl 9592 5s ORE grows io mos serial om exeat parl configuration parameters Use to keep a parameter s value get group lt CR gt een Vago Ime geil Vecimim or If group is specified shows settings of the group If group is omitted shows settings of all groups help group CR If group is omitted shows this screen If group is specified shows set command usage of the group factorydefault option CR if option is omitted all parameters are se
22. c IP Configurations oir rt pe dt eed rape ede de re co an eb ee 23 3 2 DHGP edet ete Moe e teet ire ade utes 24 32T OVerV EW MT AA td dl Saadaan Ea 24 3 2 2 DHCP Gonflg ratiol Ras 25 did ete te E e Ed eet dde teo rd Meee 25 O LOMO Wii tio rara Dia 25 3 3 2 PPPOE GontigUratiOM tii adn a 25 A E E tert n LUE IE 26 4 Host Mode Configuration 27 4 1 TCP Server Mode 29 11 QVOTVIOW EE 29 4 1 2 TCP Server Mode 31 4 2 TCP Client Mode Operations 32 4 2 OVerVIOW kc E oak su tS Lc d dpt sU c et 32 4 2 2 TCP Client Mode Configuration 2 nnne 34 4 3 TCP Server Client Mode Operations sssssssssssseseeee enne nennen nnns 34 ADEN QVOT A 34 4 3 2 TCP Server Client Mode Configuration essen 36 5 Serial Port Configuration 37 6 System Administration 40 Appendix A Connections 41 AT Ethernet PINUS iio 41 A 2 Serial Port PINGU c ne AA a ed e a ee ee 41 A 3 Ethernet Wiring Diagram ore etre eed ei re Ge edis 42 A 4 Serial Wiring DidgramM oran 42 Appendix Well known Port Numbers 43 Appendix C Troubleshooting 44 C 1 Power LED Status TroubleShooting cccccc
23. ceeeeeeeeeeeeeeeeeaeeseeeeeceaeeesaaeeeeaeeseeeeseaeessaeeseaeeeeaes 44 C 2 Serial Console Troubleshooting ener nnne ens 44 Remote Console Troubleshooting sssssssssssseeeee eene nennen nnne 44 4 IP Address Troubleshooting sssessssssssseseseseeeene enne nnne entente nnns nnns 45 G 5 DHCP Troubleshootirig i reet cn e tee rh dente te ett 45 C 6 TCP Server Mode Operation Troubleshooting coooocconnnnnonnccnnnccnnonnnononnnanoccnancn ronca nn cnn 45 Serial Communication TroubleshootinQ ooonncccnccnnnnncnnnccnnccnonccnnnrnnn 46 Appendix D Warranty 47 GENERAL WARRANTY POLICY ista idas EL dae PL edv 47 D 2 LIMITATION OF LIABILITY 0 ccc ceecceesceeseeeeeeeeeecaeeeacecaaecaaeceaeceaeseaeseaeeeeeeeeeeeeeeseaeesaeesaeeeeeeaaes 47 D 3 HARDWARE PRODUCT WARRANTY DETAILS sse 48 D 4 SOFTWARE PRODUCT WARRANTY DETAILS sse nennen 48 D 5 THIRD PARTY SOFTWARE PRODUCT WARRANTY DETAILS 48 1 Introduction 1 1 Overview The HelloDevice Lite Series allows you to network enable a variety of serial devices that were not originally designed to be networked This capability brings the advantages of remote management and data accessibility to thousands of serial devices over the network The LS100 is a most cost effective one port serial Ethernet communication device The LS1
24. d be specified together with the TCP port number Cyclic connection interval is the time interval at which the LS100 will try to connect to the remote host regardless of the existence of incoming data from the serial port If the interval is specified with a valid value other than 0 the function is enabled The time interval will be the specified value by the unit of minute If the interval is entered as 0 cyclic connection feature will be disabled Inactivity timeout is the same as described in TCP server mode setting section Figure 4 4 shows TCP client mode setting example gt SS Ios eye 192 15 1 1L G1 10 S00 OK gt Figure 4 4 TCP client mode setting 4 3 TCP Server Client Mode Operations 4 3 1 Overview The LS100 works as either TCP server or client according to the situation This will be the typical mode for most applications since it will transfer the data either from serial port or from TCP port The default TCP state is Listen which is the same as that of TCP server mode 1 Typical State Transition Listen Sync Received Established gt Data gt Closed Listen Or 34 Listen gt Sync Sent Established gt Data gt Closed Listen The initial state is Listen If there are data coming from the serial port it will connect to the remote host as a TCP client If there is incoming connection request from the remote host it will accept the connection as a TCP
25. des The LS100 needs to know the IP address of the default gateway computer in order to communicate with the hosts outside the local network environment For correct information on the gateway IP address please refer to the network administrator 3 1 2 Static IP Configuration To configure IP configuration parameters of the LS100 use set command as follows set ip static ip_address subnet_mask default_gateway lt CR gt where ip_address IP address of the LS100 subnet_mask Subnet mask default_gateway Default gateway IP address Figure 3 1 shows IP configuration command example screen To apply changes users have to invoke save and reboot command after changing configuration 23 gt Se dg suere 192 168 1 10 255 255 255 0 192 108 1 OK Figure 3 1 Setting IP configuration parameters for Static IP mode 3 2 DHCP 3 2 1 Overview Dynamic Host Configuration Protocol DHCP is a communications protocol that lets network administrators manage and automate the assignment of IP addresses centrally in an organization s network DHCP lets a network administrator supervise and distribute IP addresses from a central point and automatically send a new IP address when a computer is plugged into a different place in the network As described in the section 3 1 the IP address must be entered manually at each computer in Static IP mode and if computers move to another location in another part of the network a new IP address m
26. ding to the Product type WARRANTY PROCEDURE Upon return of the hardware Product SENA will at its option repair or replace Product at no additional charge freight prepaid except as set forth below Repair parts and replacement Product will be furnished on an exchange basis and will be either reconditioned or new All replaced Product and parts become the property of SENA If SENA determines that the Product is not under warranty it will at the Customers option repair the Product using current SENA standard rates for parts and labor and return the Product at no charge in or out of warranty WARRANTY EXCLUSIONS Damages caused by Accidents falls objects striking the SENA product Operating the Product in environments that exceed SENA s temperature and humidity specifications Power fluctuations high voltage discharges Improper grounding incorrect cabling Misuse negligence by the customer or any other third party Failure to install or operate the product s in accordance to their SENA User Manual Failure caused by improper or inadequate maintenance by the customer or any other third party Floods lightning earthquakes Water spills Replacement of parts due to normal wear and tear Hardware has been altered in any way Product that has been exposed to repair attempts by a third party without SENA s written consent Hardware hosting modified SENA Software or non SENA Software unless modifications
27. ernational distributor it was purchased through and providing proof of purchase or receipt date Customer agrees to insure the Product or assume the risk of loss or damage in transit to prepay shipping charges to SENA and to use the original shipping container or equivalent D 2 LIMITATION OF LIABILITY EXCEPT AS EXPRESSLY PROVIDED HEREIN SENA MAKES NO WARRANTY OF ANY KIND EXPRESSED OR IMPLIED WITH RESPECT TO ANY EQUIPMENT PARTS OR SERVICES PROVIDED PURSUANT TO THIS AGREEMENT INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE NEITHER SENA NOR ITS DEALER SHALL BE LIABLE FOR ANY OTHER DAMAGES INCLUDING BUT NOT LIMITED TO DIRECT INDIRECT INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES WHETHER IN AN ACTION IN CONTRACT OR TORT INCLUDING NEGLIGENCE AND STRICT LIABILITY SUCH AS BUT NOT LIMITED TO LOSS OF ANTICIPATED PROFITS OR BENEFITS RESULTING FROM OR ARISING OUT OF OR IN CONNECTION WITH THE USE OF FURNISHING OF EQUIPMENT PARTS OR SERVICES HEREUNDER OR THE PERFORMANCE USE OR INABILITY TO USE THE SAME EVEN IF SENA OR ITS DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT WILL SENA OR ITS DEALERS TOTAL LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT 47 D 3 HARDWARE PRODUCT WARRANTY DETAILS WARRANTY PERIOD SENA warranties embedded hardware Product for a period of one 1 year and external hardware Product for a period of three 3 or five 5 years accor
28. es to maintain the connection as long as possible If the disconnection is detected the LS100 will attempt to make a new PPPoE connection by requesting the new connection 3 3 2 PPPoE Configuration To make the LS100 work in PPPoE mode users need to configure the PPPoE username and password for their ADSL account as in Figure 3 3 gt set ip pppoe pppoeuser pppoepassword OK gt Figure 3 3 Setting PPPoE mode 25 3 4 IP Filtering The LS100 has an IP address based filtering feature to prevent unauthorized remote hosts from accessing LS100 The user can allow one of the following scenarios by changing the parameter settings Only one host of a specific IP address can access the LS100 Hosts on the a specific subnet can access the LS100 Any host can access the LS100 The user may allow a host or a group of hosts to access the LS100 Then the user must enter the IP address and subnet to be allowed for accessing To allow only a specific host to the LS100 enter the IP address of the specific host and just give 255 255 255 255 for the subnet To allow any hosts to the LS100 give 0 0 0 0 for both of the IP address and subnet Please refer to Table 3 2 for more details Table 3 2 Input examples of allowed remote hosts 192 168 1 120 192 168 1 120 255 255 255 255 For example to allow only a 192 168 1 120 host for accessing enter the following commands 1 DHCP mode gt SE ajo eue 192 108 1 120 255 255 25
29. est If the LS100 accepts the request the state will be changed into Established This state is not valid in TCP client mode 28 e Sync Sent If the LS100 sends a connection request to a remote host the state is changed from Closed to Sync Sent This state is maintained until the remote host accepts the connection request This state is valid only in TCP client mode e Established It represents an open connection If one of the hosts accepts a connection request from the other host the connection is opened and state is changed into Established e Data When it is in Established state data from a host will be transferred to the other one For easier understanding of the TCP session operation we called the state as Data state when actual data transfer is performed Actually the Data mode is a part of Established state as is described in the RFC 793 Transmission Control Protocol This is a normal state for the data transfer phase of the connection 4 1 TCP Server Mode Operations 4 1 1 Overview The LS100 works as a TCP server and the default TCP state is Listen in this mode The LS100 supports only one TCP socket connection per one serial port If a connection is currently established the additional connection requests will be rejected The remote host will be either Ethernet Serial communication devices acting as a TCP client or a socket program acting as a TCP client running on users PC 1 Typical State
30. have been approved by SENA Battery component capacity degradation due to usage aging and with some chemistry lack of maintenance D 4 SOFTWARE PRODUCT WARRANTY DETAILS WARRANTY PERIOD SENA warranties software Product for a period of one 1 year WARRANTY COVERAGE SENA warranty will be limited to providing a software bug fix or a software patch at a reasonable time after the user notifies SENA of software non conformance D 5 THIRD PARTY SOFTWARE PRODUCT WARRANTY DETAILS The warranty policy of the third party software is conformed to the policy of the corresponding vendor 48
31. he DHCP server side In order to reserve the IP address in the DHCP network the administrator needs the MAC address of the LS100 found on the label sticker at the bottom of the LS100 MAC 00 01 95 04 0c al 24 3 2 2 DHCP Configuration To make the LS100 work in DHCP mode just set IP mode to DHCP as in Figure 3 2 gt set ip dhcp OK gt Figure 3 2 Setting DHCP mode 3 3 PPPoE 3 3 1 Overview PPPoE PPP over Ethernet is a specification for connecting multiple computer users on an Ethernet local area network to a remote site through common customer premises equipment which is the telephone company s term for a modem and similar devices PPPoE can be used to have an office or building full of users share ADSL cable modem or wireless connection to the Internet Usually it is used in broadband Internet access such as ADSL To make the LS100 work in PPPoE mode users should have a PPPoE account and the equipments for PPPoE access such as an ADSL modem Since the LS100 provides the PPPoE protocol it can access the remote host on the Internet over ADSL connection It is required to set up the user name and password of the PPPoE account If the IP mode is set to PPPoE The LS100 negotiates the PPPoE connection with PPPoE server whenever it boots up During the negotiation it receives the information required for Internet connection such as IP address gateway subnet mask and DNS servers If the connection is established the LS100 tri
32. he package One RS 232 serial cable for connecting the RS 232 serial device One PC with Network Interface Card hereafter NIC and or one RS232 serial port Terminal emulation program running on the PC One Ethernet cable 2 1 Panel Layout The LS100 has five LED indicator lamps for status display Two lamps on the upper side indicate statuses of 10 Base T Ethernet Link and Act Next lamp indicates statuses of receive and transmit of the serial port for data communication Next two lamps indicate the system running status and the system power on status Table 2 1 describes function of each LED indicator lamp Table 2 1 LED indicator lamps Lamps Function Turned on to Green if connected to 10 Base T Ethernet network 10 Base T Blink whenever there is any activities such as incoming or outgoing packets through the LS100 Ethernet port Serial port Rx Tx Blink whenever there is any incoming or outgoing data stream through the serial port of the LS100 Turned on to GREEN if system is running Power Turned on to RED if power is supplied Factory Reset 10Base T POWER 7 5V 15V SENA Power Ready Serial Rx Tx Link Act Serial Port Data Console 4 Figure 2 1 The panel layout of the LS100 2 2 Connecting The Hardware This section describes how to connect the LS100 to serial device for the first time test Connect the power to the LS100 Connect the Ethernet cable between the LS100 and Ethernet hub
33. imeout value in milliseconds The factory default settings of baud rate data bits parity and stop bits are 9600 8 data bits No parity and 1 stop bit respectively Among the serial configuration there are three serial modes the 15100 does not support The LS100 does not support 7 data bits No parity 1 stop bit configuration In this case the LS100 will operate as 7 data bits No parity 2 stop bit mode In case the LS100 is configured as 8 data bits Even or Odd parity 2 stop bits mode the LS100 will operate as 8 data bits Even or Odd parity 1 stop bit mode 37 The factory default setting of the flow control is None Only hardware flow control using RTS CTS is supported by the LS100 Hardware flow control method controls data communication flow by sending signals back and forth between two connected devices The purpose of the DTR DSR pin is to emulate modem signal control or to control TCP connection state by using serial port signal The DTR is a write only output signal whereas the DSR is a read only input signal in the LS100 side The DTR option can be set to one of three types always high always low or show TCP connection lf the DTR behavior is set to show TCP connection the state of the DTR pin will be maintained high if the TCP connection is established The DSR option can be set to one of three types none allow TCP connection only by high or open close TCP connection Allow TCP connection only by HIGH is valid only if
34. in data it will be transferred to the serial device via its serial port after the connection is established Eventually users can monitor the serial device periodically by making the remote host send the serial command to the LS100 whenever it is connected to the remote host This option is useful when users need to gather the device information periodically even if the serial device does not send its data periodically Figure 4 3 shows the State Transition Diagram of the session operations in TCP client mode Cyclic connectio interval time out ncoming data via serial port disconnectign request TCP conneefion request rejected Or internal TCP timer is expired TCP amp onnection request accepted Inactivity time out Incoming data via serial port Established om GS Acoming data from remote host Figure 4 3 State Transition Diagram of TCP client mode 33 4 2 2 TCP Client Mode Configuration To configure the LS100 to work as a TCP client use set command as follows set host tcpc dest ip dest port cyclic connection interval inactivity timeout CR where dest ip destination IP address dest port destination TCP port cyclic_connection_interval cyclic connection interval in minutes inactivity_timeout inactivity timeout in seconds Destination IP address and destination TCP Port are the information on the remote host to which the LS100 will try to connect in TCP client mode The IP address shoul
35. lnet DHCP client PPPoE Security User ID amp Password Telnet or serial console port or HelloDevice Manager Management Full featured system status display Diagnostic LED Power Ready 10 Base T Link Act Serial Rx Tx for data serial port Power Supply voltage 7 5V 15V DC Supply current 0 30A 7 5V DC Environmental Operating temperature 0 50 C Storage temperature 20 66 C Humidity 9096 Non condensing Dimension 100 mm L 3 9 in 72 mm W 2 8 in Physical properties 25 mm H 1 in Weight 240g Approvals FCC A CE A MIC Warranty 5 year limited warranty 1 4 Terminologies And Acronyms The Internetworking related terminologies used frequently in this manual are defined clearly to help your better understanding of the LS100 e MAC address On a local area network or other network the MAC Media Access Control address is the computer s unique hardware number On an Ethernet LAN it s the same as your Ethernet address It is a unique 12 digit hardware number which is composed of 6 digit OUI Organization Unique Identifier number and 6 digit hardware identifier number The LS100 has the MAC address of 00 01 95 xx xx xx which is labeled on the bottom side of the external box e Host A user s computer connected to the network In Internet protocol specifications the term host means any computer that has full two way access to other computers on
36. ming data from remote host ing data via serial port Figure 4 1 State Transition Diagram of TCP server mode 30 4 1 2 TCP Server Mode Configuration To configure the LS100 to work as a TCP server use set command as follows set host tcps listening TCP port inactivity timeout CR where listening TCP port Listening TCP port Inactivity timeout Inactivity timeout in seconds Listening TCP port is the TCP port number through which remote host can connect a TCP session and send and receive data Incoming connection request to the ports other than Listening TCP Port will be rejected The LS100 does not restrict the number to a specific range but it is strongly recommended not to use the well known ports for certain application See Appendix B Well known Port Numbers To change the port number select menu 2 on the TCP Server mode configuration Screen Inactivity timeout is set to maintain the TCP connection state as Closed or Listen in TCP host mode unless there is any data transfer between the serial device and the LS100 If there is no incoming or outgoing data through the serial port during the specified inactivity timeout interval the existing TCP connection will be closed automatically If the value of inactivity timeout is set to 0 the current TCP connection is maintained unless there s no connection close request Although inactivity timeout is disabled the LS100 will check the connection status between the LS
37. n the hosts This is Data state The session will be disconnected due to the request of one of them which is its original state Closed 2 Operations e Serial data transfer Whenever the serial device sends data through the serial port of the LS100 data will be accumulated to the serial port buffer of the LS100 If the internal serial port buffer is full or inter character time interval reaches to the time specified as inter character timeout value it tries to connect to the user defined IP address of the remote host if TCP session is not established yet If the LS100 succeeds in connecting to the remote host the data in the serial port buffer will be transferred to the host Otherwise all the data stored in the buffer will be cleared e Session disconnection The connected session will be disconnected when the remote host sends disconnection request or when no data transfer activity is found through the serial port for certain amount of time which is Inactivity timeout All the data remained in the serial port buffer will be cleared when it is disconnected e Connection request from remote host All the incoming TCP connection requests will be rejected in TCP client mode 32 e Cyclic Connection It Cyclic Connection function is enabled the LS100 will make an attempt to connect to the user defined remote host at certain interval even if there s no incoming serial data from the device If the remote host prepares certa
38. ode z TCP server tcps part listening TCP port par2 inactivity timeout sec if hostmode TCP client tcpc part destination IP address par2 destination TCP port par3 cyclic connection interval min par4 inactivity timeout sec if hostmode TCP server amp client tcpsc part listening TCP_port par2 destination IP address par3 destination TCP port par4 cyclic connection interval min par5 inactivity timeout sec set cyclic connection interval to 0 not to use cyclic connection set inactivity timeout to 0 for unlimited timeout For easier understanding of TCP modes a simplified State Transition Diagram is often used And too help users understand the diagram the TCP state of the LS100 is briefly described as follows e Listen It represents a waiting for a connection request from any remote host It is a default start up mode when it is set as TCP server mode This state is valid only in TCP server mode operation e Closed It means No connection state at all If the data transfer is completed the state is changed to this state if one of the host requests disconnection request If it is in TCP server mode the state is automatically changed to Listen mode It is a default start up mode when it is set as TCP client mode or TCP server client mode e Sync Received In TCP server mode the state will be changed from Listen to Sync Received if any remote host sends connection requ
39. or switch Connect the serial data cable between the LS100 and a serial device 2 2 1 Connecting The Power Connect the power jack to the LS100 power jack using DC power adapter included in the package If the power is properly supplied the Power lamp of the LS100 will maintain solid red 10 Figure 2 2 Connecting the power to the LS100 2 2 2 Connecting To The Network Connect the one end of the Ethernet cable to the LS100 10Base T port and the other to the Ethernet network If the cable is properly hooked up the LS100 will have a valid connection to the Ethernet network by indicating Link lamp of the LS100 maintains solid green Act lamp continuously blinks to indicate the incoming outgoing Ethernet packets If any of the above does not happen the LS100 is not properly connected to the Ethernet network Figure 2 3 Connecting a network cable to the LS100 11 2 2 3 Connecting To The Device Connect the serial data cable between the LS100 and the serial device If necessary supply the power to the serial device attached to the LS100 Serial Device Figure 2 4 Connecting a serial device to the LS100 2 3 Accessing Console Port There are two ways to access console port of the LS100 depending on whether the user is located at a local site or a remote site Serial console Local users can connect directly to the serial console port of the LS100 using serial console data cable null modem cable The
40. oting the device changes are not applied If success OK lt CR gt lt LF gt If error ERROR CR lt LF gt reboot lt CR gt Exit and reboot the device None 2 4 1 set Command With set command users can configure parameter values of the LS100 for each environment Basic set command usage is as follows set group pari par2 CH where group ip host serial or admin par par2 configuration parameters Use to keep a parameter s value The group is the category where the parameters should be entered For example if users want to set parameters related to the configuration use set command as shown in the Figure 2 9 gt sec to Gracie TSZ IOs lo NOO 2552552550 T9216 1 OK gt Figure 2 9 IP configuration example screen In the above example the first parameter ip indicates that the following parameters are IP configuration parameters The second parameter static indicates that the LS100 will use static IP address of the third parameter 192 168 1 100 The fifth parameter indicates the subnet mask and the 16 next indicates the default gateway IP address If users want to change only one of the parameters of the group users can omit trailing parameters and or can use to keep a parameter value The screen below will show how to change subnet mask only without changing IP address and gateway
41. pecification eredi a e teal 6 1 4 Terminologies Acronyms ener nnn nnne nen 7 2 Getting Started 9 S Panel 9 2 2 Connecting The Hardware 10 2 2 1 Connecting The Power ssssssssseseeseseeees eene tenente 10 2 2 2 Connecting To The 11 2 2 3 Connecting To The Device ssssssssssssssseseseeeeee ennemis snnt renis 12 2 3 ACCESSING Console 12 2 3 1 06 ep ptt d ae te ER ER d 13 2 3 2 Using Remote Console sss eene enses nnne nennen snnt rennen 14 2 4 Command Usage etr Urn ettet eur a tada font tds 15 2 41 ECT Ment 16 2 4 2 get Commahd xc cate out e ec O cci s 17 243 help Command oie Dee Y ae ede aon Ade cede a ut eeu aud trece de 19 2 4 4 factorydefault Command sese enne nnn snnt enean 20 24 5 save COMA 20 2 4 6 exit Command aiar aaa ERU ie SU NH Pe up esie n ua sete Ee cda Ra Pets e 20 2 4 7 reboot Commiuand 2 cec Ue 21 3 IP Address Configuration 22 SH State IP ee IE GR WOLLE E teu Nr dm ette tei tras 23 estesa e ti Ds 23 3 12 Stati
42. rial data are not Too large inter character Set inter character timeout with smaller value transferred by timeout TCP IP immediately Cannot Invalid serial port Check if serial port configuration of the LS100 are the same with communicate with configuration that of the serial device the LS100 Invalid data Invalid serial port Check if serial port configuration is correct transferred configuration 46 Appendix D Warranty D 1 GENERAL WARRANTY POLICY Sena Technologies Inc hereinafter referred to as SENA warrants that the Product shall conform to and perform in accordance with published technical specifications and the accompanying written materials and shall be free of defects in materials and workmanship for the period of time herein indicated such warranty period commencing upon receipt of the Product This warranty is limited to the repair and or replacement at SENA discretion of defective or non conforming Product and SENA shall not be responsible for the failure of the Product to perform specified functions or any other non conformance caused by or attributable to a any misapplication or misuse of the Product b failure of Customer to adhere to any of SENA s specifications or instructions c neglect of abuse of or accident to the Product or d any associated or complementary equipment or software not furnished by SENA Limited warranty service may be obtained by delivering the Product to SENA or to the int
43. t value of username and password are both admin C 4 IP Address Troubleshooting Cannot find IP Use serial console to find IP address address of the LS100 Use HelloDeviceManager program to probe the LS100 on the network HelloDeviceManager The LS100 is not Use serial console to assign valid IP address to the LS100 cannot probe the assigned valid IP LS100 address HelloDeviceManager Run HelloDeviceManager on the PC that is on the same subnet and the LS100 are not with the LS100 on the same subnet C 5 DHCP Troubleshooting Cannot lease IP DHOP server is not Check if DHCP server is working correctly address working IP address of the DHCP server does not Check if DHCP server is working correctly LS100 is changed extend lease time C 6 TCP Server Mode Operation Troubleshooting Cannot connect to IP configuration of Check if IP configuration of the remote host is valid the LS100 remote host is invalid Host mode of the Change the host mode of the LS100 serial port to TCP server or LS100 serial port is not TCP server client TCP server IP address of the LS100 Specify valid IP address and TCP port number of the LS100 or TCP port number is wrong DSR option is set but Disable DSR option or make DSR input of the LS100 high DSR input is not high TCP connection with Close established TCP connection or connect later the other host is established already 45 C 7 Serial Communication Troubleshooting Problem Se
44. t with factory default values aie jii ug all parameters except IP settings are set with factory default values save CR Save changes Cui RS Exit without rebooting the device reboot CR Exit and reboot the device Figure 2 15 Help screen help ip set ip ipmode parl par2 ipmode static Static IP dhcp DHCP pppoe PPPOoE parameters if ipmode static parl IP address par2 subnet mask par3 gateway if ipmode dhcp no parameters required if ipmode pppoe parl PPPoE username par2 PPPoE password Figure 2 16 Help screen with ip group specified 19 2 4 4 factorydefault Command With factorydefault command users can load factory default parameter values in console Command usage of factorydefault is as follows factorydefault option CR where if option is omitted all parameters are set with factory default values if option ip all parameters except IP settings are set with factory default values Loaded values are not saved until save command invoked After factorydefault command save and reboot commands are required for changes to take effect factorydefault or factorydefault ip OK gt save OK gt reboot Figure 2 17 Factory default reset screen 2 4 5 save Command With save command current parameter changes are saved to non volatile memory Command usage of save command is
45. tablish a TCP connection to a remote server through its TCP port If a TCP session is established between them the LS100 will send data to the server If there s any data from the server during the session it will also send the data through the serial port However if the LS100 failed to connect to the remote server the data from the serial port will be discarded This is useful when the serial device initiates sending data such as data gathering application TCP If you are not sure which mode to choose select this mode since it will be applied in most server client applications In this mode the LS100 operates as TCP server AND client If the connection is not established it will accept all incoming connection and connect to the remote host if there are any data from the serial device Otherwise it will send data back and forth In summary the LS100 will work as if it is virtually connected to the remote host For each host mode required parameters for configuration is summarized in Table 4 2 Table 4 2 Host mode configuration parameters Listening TCP port Inactivity timeout sec Destination IP Destination TCP Port Cyclic connection Interval Inactivity timeout sec TCP SarveiClicnt TCP Client Basic set command usage for host mode configuration is as follows 27 set host hostmode par2 where hostmode tcps TCP server tcpc TCP client tepsczTCP server amp client parameters if hostm
46. the Internet A host has a specific local or host number that together with the network number forms its unique IP address e Session A series of interactions between two communication end points that occur during the span of a single connection Typically one end point requests a connection with another specified end point and if that end point replies agreeing to the connection the end points take turns exchanging commands and data talking to each other The session begins when the connection is established at both ends and terminates when the connection is ended e Client Server Client server describes the relationship between two computer programs in which one program the client makes a service request from another program the server which fulfills the request A server is a computer program that provides services to other computer programs in the same or other computers whereas a client is the requesting program or user in a client server relationship For example the user of a Web browser is effectively making client requests for pages from servers all over the Web The browser itself is a client in its relationship with the computer that is getting and returning the requested HTML file The computer handling the request and sending back the HTML file is a server ISP PC NIC MAC LAN UTP ADSL ICMP TCP DHCP SMTP FT PPPoE HTTP UART DC m DTE CTS RTS Table 1 1 Acronym
47. ust be entered Meanwhile all the parameters including the IP address subnet mask gateway DNS servers will be automatically configured when the IP address is assigned in DHCP mode DHCP uses the concept of a lease or amount of time for which a given IP address will be valid for a computer All the parameters required to assign an IP address are configured on DHCP server side and each DHCP client computer receives this information when the IP address is provided at its boot up To obtain an IP address theLS100 sends a corresponding DHCP request as a broadcast over the network after each reset The reply generated by the DHCP server contains the IP address as well as the subnet mask gateway address DNS servers and the lease time The LS100 immediately places this information in its non volatile memory If the operating time reaches the lease time the LS100 will request the DHCP server for renewal of its lease time If the DHCP server approves extending the lease the LS100 can continue to work with the current IP address Otherwise the LS100 will start the procedure to request a new IP address to the DHCP server A DHCP sever assigns IP addresses dynamically from an IP address pool which is managed by the network administrator This means DHCP client i e the LS100 receives a different IP address each time it boots up To prevent the case that users do not know the IP address of the LS100 in such environments its IP address should be reserved on t
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