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1. Figure 78 Statistics Port Selection Line Status Z statistic for Port ASA TEE PAN DTR off 0 ees DSR off 0 Line Status RTS off 0 DTR off 2 CTS off 0 DE off 2 DCD off 0 RI off 0 off 2 off 2 Common off 2 r A Serial Tx 0 pa JA Serial Rx 0 Common Serial Tx Serial Rx Figure 79 Port Statistics The statistics window reports the state of the modem status and control signals Further the NetCom counts the number of status changes on the modem control and status signals since the NetCom has been started The number of characters sent and received is shown at the bottom 6 2 3 3 Netstat Web menu Tools section Netstat Telnet Tools option Netstat Netstat is a common tool to display the actual status of network connections It may be used to monitor the actual status of the NetCom This is a standard tool for network debugging The web browser opens a separate window for each port selected January 2012 NetCom Lite User Manual 82 6 Configure the Operation Modes Netstat Peresitcsssit R Ping Statistic Netstat Wireless Logging Firmware View Connections Figure 80 Start Netstat Update Proto Local Address Foreign Address State tcp 0 0 0 0 23 0 0 0 0 0 LISTEN tcp 0 0 0 0 80 0 0 0 0 0 LISTEN tcp 0 0 0 0 2000 0 0 0 0 0 LISTEN tcp 0 0 0 0 2001 0 0 0 0 0
2. Parameter Server Type 423 WLAN Wireless l Software Version 2 4 1 OpenVPN l Hardware Version 1 0 Authentification Serial Nr 0010100454 Figure 59 Server Information Information about the selected NetCom is displayed as Server Info Starting with the Server Type this is the model of the NetCom followed by the SoftwareVersion and Hardware Version This will give a rough overview which features are implemented or need an upgrade of the firmware The Serial Nr is important to identify the device you are configuring right now For further information the UpTime is listed Contact and Location are user defined information They may later help to find the device in the installation and the person responsible for management The Administrator may provide some contact information here Contact defines a person to contact for help e g Mrs Jane Doe 555 HELP Location is the physical place of the NetCom e g CeBIT Hall 12 Service Box IX a These data are restricted to ASCII characters January 2012 NetCom Lite User Manual 63 6 Configure the Operation Modes 6 2 1 2 Server Parameter Web menu SERVER CONFIGURATION section Server Parameter Telnet ServerConfig option Parameter The Server Parameter allow configuration of the NetComs name and of course all parameters in IP settings The ServerName is used as general information e g pro
3. 192 168 1 154 Subnet Mask 255 255 255 0 DHCP Server 192 168 1 1 If DHCP is activated and there is a DHCP server found the configuration is OK A common problem is an IP Address like 169 254 xxx yyy because this is an automated address of APIPA If no DHCP server is present in the network a static configura tion is recommended Here we prefer the range of 192 168 1 1 up to 192 168 1 254 for computer and NetCom Change the computers configuration and select a similar address for NetCom 2 Start the NetCom Manager program Search for the device the Manager performs a discovery of available NetCom devices Check the properties of each device for a matching serial number Once the NetCom is identified check the IP Address and the Netmask If all this information is displayed as Zero the IP settings do not match your computers settings To correct this you need admin istrative privileges for your computer Start the NetCom Manager as Administrator and configure correct parameters in the NetCom Close the Manager program 3 Important The default configuration of NetCom may result in a fixed IP Address It will be the same for all connected devices As a side effect the Manager can not send a dedicated configuration to a certain device Therefore it is best to connect several NetCom one by one configure them connect the next and search for that device 4 Try to PING the NetCom Open a co
4. 2 02 0004 85 6 2 3 6 Logging and Debug 2 2 66 25 eee ee ee ees 86 O 2 0 BOVE 65 cas 8 Sh eae a a ee BO ae a es 87 OL ODO se cy 424484 F PPL ek eek ba He dbad He eh ee BE e bo 87 6 2 5 SavelsExit Men a ce ee lt a cres ee 87 G20 Save Parameter oo sa nmg eee ee Ee eH ds 87 Gane BOGE go cee elk ee Robe ne a eh ee OH 88 A r Gade ge ha RA he eR eee Pee A 88 6 3 Erase Configuration of NetCom saoao aa 88 7 IP Modem Function 90 7 1 Some possible Scenarios o ss rec topedo RR RR ee Re eS 90 7 2 Serial Signals and Cables 0 ee ee 90 7 3 Operation Modes by IP ModeM 0 0 eee ee aws 91 14 Hayes Commands cs s t tedbire ed eR ee ee Ree Pea Dee e 91 TAL AT command pet lisa aa eRe ee ee a ee 92 7 4 1 1 Standard AT Commands 2 0000004 92 7 4 1 2 Extended AT Commands 0 02004 92 ALS Nom AT commento doo sas wa a si eRe OR a 93 7 4 2 S Registers for Configuration a a saa e 4 93 7 43 Sample Commands used by Windows o sspe cewri sakpas 93 To Description ot AT Comman ds s er 65 6 oe Se rr oe ee ke Re oe 93 FL RAID ec ne Sek wh ee E ee EEE Oe A Oe ee RR 94 7 5 2 AT O online data m de ocioso A se OER 94 toe AT A lame all ec ea ee PL e a a a SORES e a a G a a 94 154 AT B m dulation ATE 2s he edo Se eas ae ae a Ms 94 ToS AT E eho ATEI rpe oe ee aa E AR e g a 95 208 ATO Quen ATO sorires wee EA e ea 95 ToT AUY varb
5. January 2012 NetCom Lite User Manual 98 8 Print Server Operation 8 Print Server Operation Sometimes the Serial Device Servers are used together with serial printers These printers are available via a network to several stations for printing So far there have been two operation modes to achieve this First the serial port can operate as a TCP Raw Server and the station just sends the data to print via a TCP connection As second option a computer running Windows could install the driver for virtual serial ports The printer is then controlled via this Com port In both these solutions the buffering of data occurred on the client station Beginning with Firmware version 2 2 the NetCom Devices offer a true Print Server mode using the Line Printer Daemon protocol as of RFC1197 Here a print server lpd is a station with one IP Address and a single defined port to accept commands and data for printing Several printers may be attached to the print server Each printer has a separate data queue for management of print jobs The data of the jobs is saved in this queue instead of the client as before 8 1 Printer Queue The basic function of an lpd is to accept the data for printing store it in a spooler queue and send it to the printer when this is ready for printing This is done for several queues in parallel Each printer is identified by the name of the queue where it is attached to The NetCom Device Servers allow to configure a cu
6. ARM7 S3C4510B 8MB SDRAM 2 MB Flash RJ45 10BaseT 100BaseTx TCP IP UDP SNMP DHCP ICMP ARP Telnet RTelnet HTTP up to 921 6 kbps None Even Odd Mark Space 5 6 7 8 1 2 1 5 with 5 data bits RS 232 TxD RxD RTS CTS DTR DSR DCD RI GND RS 422 Tx Tx Rx Rx GND RS 485 4 wire RS 485 2 wire Data Data GND DB9 male RS 232 RS 422 485 configured by DIP switch Serial console Telnet Web browser SNMP Windows Vista 2003 XP 2000 Windows NT Linux Fixed TTY Driver installation and configuration program Management console 0 to 55 C CE FCC Table 1 Specifications common Note 1 460 8 kbps on NetCom 111 113 and 211 PoE models as well Note 2 The serial bitrate of 921 6 kbps may cause problems when used with RS 232 It requires short cables with low capacity to reduce load on the serial signals A realistic maximum bitrate is 460 8 kbps When using RS 422 or RS 485 there is no problem using maximum bitrates Note 3 Previous models provided DB9 female connectors with optional Null Modem Adapters These are no longer required Check your cable when using RS 422 or RS 485 transmissions January 2012 NetCom Lite User Manual 12 2 Introduction 2 3 2 Device specific Characteristics The characteristics of certain NetCom models are shown as a short overview for comparison 2 3 2 1 NetCom 111 113 111 PoE 113 PoE One port NetCom 111 PoE 113 PoE with Power ov
7. B TER 5 GND GND GND 6 DTR Figure 10 Connector DB9 7 CTS female 8 RTS 9 RI Table 11 Signals DB9 female 3 3 RS 422 485 Electrical Configuration In typical RS 422 and RS 485 installations certain electric conditions have to be configured Simply connecting cables is not enough to fulfill the specifications or RS 422 and RS 485 For ease of installations the NetCom Lite Serial Device Servers provide the termination functions for data lines They are activated by placing certain jumpers internal of the NetCom Lite There are two blocks of jumpers near each serial port JP3 and JP10 in NetCom 111 113 Place a connection cap to activate the function January 2012 NetCom Lite User Manual 22 3 Hardware Description Pins Function of Signals JP3 1 2 Place 1200 to terminate Tx Data in RS 485 2 wire JP3 2 3 Park position JP10 1 2 Place 120Q to terminate Rx JP10 2 3 Park position Figure 11 RS 422 485 Option Jumper Table 12 RS 422 485 Jumper Configuration Warning All jumpers are in parking position by default This is important for use in RS 232 mode Never activate termination otherwise communication errors or damage of devices is possible 3 3 1 Termination Resistors The use of long communication lines in RS 422 and RS 485 mode requires the installation of ter mination resistors These must match the impedance of the cable Typical cables in Twiste
8. Figure 76 Ping and Response in Web Browser IP Address to ping to 127 0 0 1 4 Statistic Netstat Wireless Logging Firmware PING 127 0 0 1 from 192 168 1 243 44 72 bytes of data 52 bytes from 127 0 0 1 icmp_seq 0 tt1 64 time lt 10 ms 52 bytes from 127 0 0 1 icmp_seq 1 tt1 64 time lt 10 ms 52 bytes from 127 0 0 1 icmp_seq 2 tt1 64 time lt 10 ms 52 bytes from 127 0 0 1 icmp_seq 3 tt1 64 time lt 10 ms Figure 77 Ping and Response in Telnet If the target responds the network between the NetCom and the target is operational The time required for an echo depends on the speed of the network In a typical Ethernet this is only very few Milliseconds while it can be several seconds throughout the Internet Via Telnet use the lt Esc gt key to stop the Ping function 6 2 3 2 Statistics Web menu Tools section Statistics Telnet Tools option Statistics January 2012 NetCom Lite User Manual 81 6 Configure the Operation Modes The Statistics are presented on a by port base So you first select the serial port and then you get the information about modem status and control Also the amount of data transferred is shown Statistic Se q Ping Y EEE Port 2 Port 1 Port2 Port3 Port4 Netstat Port 3 Wireless Port 4 Logging Firmware 4
9. For applications operating with short data blocks and waiting January 2012 NetCom Lite User Manual 36 4 Windows Virtual COM Driver for short answers this is not optimal It causes transmission delays called Latency Good Performance uses smaller blocks The Latency may be reduced a little bit depending on the application But the impact on the data throughput is small Short Latency mimics a 16C550 with full FIFO enabled but no network timeouts will occur This means the block size is 16 quite small for network operations Virtual FIFO Off simulates a deactivated FIFO which is the fastest set ting in terms of latency The port is configured as if the FIFO is off buffers are configured to never wait for a timeout hence gaining in best reaction times The FIFO buffers are not de activated in reality they are still used to prevent data loss Driver Defaults returns to the standard settings when enabled Advanced opens access to detailed configuration of the operation param eters January 2012 NetCom Lite User Manual 37 4 Windows Virtual COM Driver 4 4 3 Network amp Misc Properties When you use the Advanced checkbox on the Performance tab the Network Misc tab opens automatically Eigenschaften von NetCom COM Port COM9 alx Allgemein Local Settings Remote Settings Network Misc Performance Treiber Details l j NetCom COM Port COM9 V tom o Tx Network Buffer Size
10. RJ45 NetCom 211 ocios A 22 Sienals DEY maleo oa aesa ag ha RR RR A A AR a 22 January 2012 NetCom Lite User Manual 8 List of Tables 12 13 14 15 16 Ly 18 19 20 21 22 23 RS 422 485 Jumper Configuration o we ee eee 23 LED POOR sa po ae ee oR A oe ee Bl ee eS Sw Poe ee ee oe a i 24 SOHO Firewall Pass Through aia Sate ek Re Re ee we eS 53 IP Dodd table ao xicas aoe Ra dA ee Soe ee a ee ee a ee 91 IP Modem Standard AT Commands 2 02 005052 eee 92 IP Modem Extended AT Commands 0 00000 eee eee eee 92 IP Modem S Registers for Configuration 020000000004 93 IP Modem Sample Dials o so s coco cnau m su bb wwe eR ee 94 IP Modem virtual Modulation lt s cos sa macs aaa Seb ede Ree ee 95 IP Modem Responses o o sk a tap Re Ra Pe ee ae aa 95 IP Modem Information Responses e 96 IP Modem DTR Configuration spos ea raap oedi akora ee 97 January 2012 NetCom Lite User Manual 9 2 Introduction 1 Overview The NetCom Lite Serial Device Servers are designed to remotely operate serial ports over networks The network interface is implemented as 100 Mbit s Fast Ethernet The transport is implemented via TCP IP and UDP protocols Therefore control is available via Ethernet Intranet and Inter net The supplied driver software implements virtual serial ports which hide the network transfer from your applications Software applications using standard COM p
11. These are the special options used while installing the driver software At any time after installation the configuration may be changed by the NetCom Manager program This may result in serial ports appearing in or vanishing from the system 4 4 5 1 Changing the Installation There are common situations when the current configuration needs a change In the first case the NetCom has been moved to a different location or the logical structure of the network has changed It may happen the IP Address of NetCom is also changed Either by Automatic DHCP or manually via a different interface like the Web browser Because of the changed address the driver does not find the serial port to contact YSCNP CONFIG xi address 9 Server of type NetCom_111 and serial number 40100231 was Found with changed ip U Is this a new server Figure 39 Reconfigured NetCom found Now open the NetCom Manager It will re detect the devices In this process the Manager finds the already installed NetCom but with a new configuration Then the Manager requests interaction from the user This question here assumes the NetCom shall be installed from scratch This will produce a Com port with a new number If just a reconfiguration has occurred click on No When January 2012 NetCom Lite User Manual 43 4 Windows Virtual COM Driver you do that the parameters of the installed Virtual Com Port are changed to contact the same serial ports on a new network
12. a gt Rx Network Buffer Size 16384 4 gt Y Automatic Trigger Tx Trigger Level kil Network Timeout ms 2000 gt Overspeed 1 000 a gt Open If Absent J Keep Alive JV Passive Modem 7 Simulate Device Off on Connection Loss Abbrechen Figure 34 NetCom COM Port Network Misc Properties The parameters on this tab control the operation of the driver software on the computer Tx Network Buffer Size If the application sends small chunks of data to the driver these are buffered to send them in one large packet This parameter defines the size of the buffer And also the maximum packet size sent to the serial port by the driver soft ware Rx Network Buffer Size This is the size of the buffer to receive data from the NetCom Automatic Trigger based on internal rules this checkbox selects a best practice value for Tx Trigger Level Deactivate it to control that parameter manually Tx Trigger Level Controls the time when data is sent to the NetCom If the Tx buffer holds at least this amount of data the driver January 2012 NetCom Lite User Manual 38 4 Windows Virtual COM Driver immediately sends them If there is less data the driver may use a timeout to determine when to send them Network Timeout ms This is the timeout Overspeed This is a special option not really related to network commu nication There are old applications limited in the maximum speed With Overspeed you d
13. lt es eR RRS REE RHEE January 2012 NetCom Lite User Manual List of Figures 12 DIP NetCom dll os cias ata eip Se a Ae ee he a a a a 23 13 DIP Other NetCom oo sasso eee eR we ee 23 1d Romid Fewer dade o ica be ee Bae ew ee e bE ee ek eS 24 15 Power Termal Boek oes aot ee ae Be Pe ee ee ee BO E a 24 iG AC Power pakito aa 24 Ly Tnstallation Wizard e ooo a S BAe oe eA Oe Se Se RE Se a we ES 26 18 NetCom Driver Installation se sea 22445 284 a oe eRe ee 27 19 Start Driver Installation lt sco s taci sa e 36 goh wa ee a PR ee 28 20 Copy Driver Files c o sos a sodron a lt lt Re De ee A ee 28 21 Discover and Select NetCom Devices for Installation 29 22 NetCom in Manager usos poa Rk ae e ke ee Se Pee da eS 29 23 Define NetComs IP Configuration lt ss s ic se wp e su goka eee ee eee 30 24 DNS Name for NetCom Server 30 25 Sending Parameters toaNetCom a a 31 26 Virtual Com Ports installng cocos eee ee eee a 31 27 New Hardware Wizard gt csc 24 2548 Bebe wee HER a ee 32 28 Install drivers for the serial ports 2 0 2 ee 33 29 VScom drivers in the Start Menu 2 e 33 30 NetCom in Device Manager 2 2 0000 2 ee ee 34 31 NetCom Manager NT o aosa a sai a ee ee eS 34 oe NetCom COM Port Serial Seres cm mor mik a ee Re ae a 35 33 NetCom COM Port Performance Settings gt o osos epo ca a Dp E Re k e e 36 34 NetCom COM Port Network Misc Properties aooaa a 3
14. Off Off RS 485 by RTS 4 wire Full Duplex On Off On Off 2 wire Half Duplex with Echo On Off Off On 2 wire Half Duplex no Echo On Off Off Off Factory settings Off Off Off On Table 7 Switch Configurations Note 1 Line modes of RS 422 and RS 485 are not available on NetCom 111 411 811 and 811RM Note 2 ART is the Automatic Receive Transmit control In RS 485 mode this is the recommended option The NetCom performs the required activation and disabling of the RS 485 transmitter by an internal automatic It is available in NetCom 113 413 813 and 813RM models January 2012 NetCom Lite User Manual 20 3 Hardware Description Line Mode Comment S1 S2 Switch Positions UL RS 232 Configuration via serial port Off Off LT it RS 232 Data communication On On LIL im Factory settings Off On IE Table 8 Switch Configurations NetCom 211 Note 3 Configuration via serial port is only effective on port 1 of the NetCom Server Note 4 Factory Settings are restored on next Power Up Reset of the NetCom Factory Settings are only effective on port 1 of the NetCom Server 3 2 Signal Assignment It is of course important to know the exact location of the serial signals in the configured mode Here is the table for the DB9 male connector For RS 232 the assignment is the same as on any
15. PC Com1 2 Please note the GND signal in RS 422 and RS485 modes This signal must also be connected between the serial devices So in reality there is neither a 2 wire nor a 4 wire connection With the exception of very special configurations a serial cable without GND violates the specifications for RS 422 and RS 485 3 2 1 Serial DBO male Pin RS 232 RS 422 485 4 wire RS 485 2 wire 1 DCD Tx A Data A 2 RxD Tx B Data B 3 TxD Rx B 4 DTR Rx A 5 GND GND GND 6 DSR Figure 8 Connector DB9 male 7 RTS 8 CTS 9 RI Table 9 Signals DB9 male January 2012 NetCom Lite User Manual 21 3 Hardware Description 3 2 2 Serial RJ45 to DB9 male Pin RJ45 RS232 Pin DB9 1 RIS 7 1 2 DIR 4 EE 3 GND 5 4 TxD 3 12345 5 RxD 2 6 DCD 1 AAs OOO O 7 DSR 6 Table 10 Signals DB9 male RJ45 NetCom 211 Figure 9 Connector RJ45 and DB9 male 3 2 3 Serial DBO female This type of serial connector is phased out The current models are manufactured with DB9 male ports For re use of existing cables an optional Null Modem adapter is available for RS 232 connections Cables for RS 422 485 require special adapters Pin RS 232 RS 422 485 4 wire RS 485 2 wire 543 2 1 1 DCD Rx A 2 TD Rxt B 3 RxD Tx B Data A 4 DSR Tx A Data
16. Toggle DTR to disconnect and enter command mode default AT amp D3 Toggle DTR to reset the IP Modem perform ATZ Table 23 IP Modem DTR Configuration January 2012 NetCom Lite User Manual 97 7 IP Modem Function 7 5 19 AT amp K handshake AT amp K3 or as alternative command 7 5 20 AT Q AT Q3 Configure serial Flow Control AT amp K0 and AT Q0 disable all Flow Control The default is AT amp K3 and AT Q3 to use RTS CTS Hardware Flow Control between PC and IP Modem AT amp K4 and AT QI1 configure for XON XOFF Software Flow Control between PC and IP Modem Other Options are not supported 7 5 21 AT amp V view profile Show Profiles This will display the current profile the stored user profile the short dial strings and the factory profile Parameters are accepted but ignored AT amp V is AT amp V0 and is AT amp V1 7 5 22 AT amp W save profile Save the current configuration as user profile AT amp W is the same as AT amp WO all other parameters report an ERROR 7 5 23 AT amp Z save destination This command will save a destination in Internet syntax It is given by lt host gt lt port gt The lt host gt is either an IP Address in dotted octet notation or an FQN in correct syntax The lt port gt is a string representing a decimal number If lt port gt is omitted the target port is the local TCP Data Port as defined in the configuration of IP Modem see 6 2 2 2 7 above
17. as they are displayed in menus or dialogs Typewriter denotes names of special values for multiple choice parameters Such values may appear in drop down lists or as radio buttons The version of the firmware described in this manual is 2 6 3 covered together with driver 1 5 12 0 January 2012 NetCom Lite User Manual 10 2 Introduction 2 2 Features Single power supply DC 9 30V 200 600 mA 12V or AC 100 240V 47 63Hz 25VA or Power over Ethernet as of IEEE 802 3af up to 3 W Ethernet 10 100BaseTx for auto configuration Three way serial port interfaces RS 232 RS 422 and RS 485 Max 921 600 bps half and full duplex TCP IP configuration fixed or by DHCP Easy remote configuration via SNMP Drivers for Windows and Linux operating systems Documented interface for every networked operating system January 2012 NetCom Lite User Manual 11 2 Introduction 2 3 Product Specifications Most of the hardware characteristics are common for all models However some must differ from model to model they are shown in dedicated sections The new hardware version 2 0 represents some changes in the features of the products compared with the previous version 2 3 1 Common characteristics Processor Memory Ethernet connector Protocols Serial Speed Parity Data bits Stop bits Serial signals Serial connector Serial operation Management Driver software Management software Operating temp Approval
18. connected devices To ensure this range the connection of GND is required January 2012 NetCom Lite User Manual 108 10 Troubleshooting Guide c A network in RS485 requires biasing resistors polarization The Data line requires a pull up resistor to 5V and the Data line needs a pull down resistor to GND The value is about 7500 to 1kQ When no station is transmitting the Data lines float This will cause noise and strange errors The bias ing resistors place a differential voltage to the lines at least 200 mV These resistors must not exist on the network more than once Therefore they are not enabled in the NetCom se rial ports To enable them it is necessary to open the case and set the Jumpers see section 3 3 January 2012 NetCom Lite User Manual 109 11 Glossary of Terms 11 Glossary of Terms AES Advanced Encryption Standard The successor of the now insecure DES AES provides strong and modern encryption with long keys up to 256 Bit DES used 56 Bit APIPA Automatic Private IP Addressing A scheme to self assign an Address to a network device The de vice selects an address of the LINKLOCAL range 169 254 1 0 to 169 254 254 255 by random If this address is unused it assigns it to itself Otherwise the next address is tested It became widespread with Windows 98 The netmask is 255 255 0 0 these addresses are not routed on the Internet ART Automatic Receive Transmit control Special control fo
19. hangup ATHO Command to disconnect Also used as ATHO The related version ATH1 to just go off hook is not supported and reports an ERROR 7 5 9 AT I n information ATIO Report technical information about the IP Modem It is frequently used to identify the device The answer is always sent as lt cr gt lt 1f gt lt Hresponsett gt lt cr gt lt 1f gt lt cr gt lt 1f gt 0K lt cr gt lt 1f gt Here are the defined response strings January 2012 NetCom Lite User Manual 95 7 IP Modem Function ATI or 230 230 4kbps maximum ATIO ATI 100000000 100Mbps Ethernet ATI2 ATI3 Version 1 0 lt compile date gt Version of Modem Firmware ATI4 Current Profile ATI5 ATI6 NetCom 230k IP Modem Device Identification ATI7 ATIS ATI9 lt Name gt Serial IP port Com X NetCom Display serial port used ATI10 ATI11 lt very extended information gt Table 22 IP Modem Information Responses 7 5 10 AT S setup Set and read the S registers for configuration ATSrr is a request to read the current value of S register number rr ATSrr nnn stores the value nnn in the register rr Unknown registers report ERROR See section 7 4 2 above for possible registers and parameters 7 5 11 AT L loudness and 7 5 12 AT M speaker These commands are answered with OK but completely ignored There is no function like speaker 7 5 13 AT N auto baud ATNO Automatic detection
20. 2 1 Configure IP Parameters As mentioned above it is important to configure the NetCom to operate in your network In many networks this is done by a special server DHCP Please ask your Network Administrator for information If you need to define parameters manually double click the devices icon This program is covered in detail in 4 4 For now follow the minimum steps January 2012 NetCom Lite User Manual 29 4 Windows Virtual COM Driver Figure 23 Define NetComs IP Configuration This panel opens Deselect the Option of Use DHCP and place your parameters as IP address Netmask and Broadcast Click on the OK button Since driver version 1 5 6 you may also enter a DNS name instead of the IP Address DNS Search NetCom_Demo_494 visionsystems Jocal Figure 24 DNS Name for NetCom Server Click the DNS button and enter the Qualified Domain Name defining the NetCom Server Your Administrator will provide you with it This name is translated to an IP Address and used by the driver When all parameters of the configuration are set click the OK button This will update the config uration of the NetCom the new parameters are sent to the device January 2012 NetCom Lite User Manual 30 4 Windows Virtual COM Driver Updating Server Figure 25 Sending Parameters to a NetCom 4 1 2 2 Configure Firewall As you will notice in figure 23 the driver may also operate by traversal of
21. A 83 Netstar pampe a ul sera Be le a a Re ee a 83 enc Upload A Pw ie Bh oe ee a ee ek ee 85 Save and Load Configuration in Web Browser a ee ene 86 Syslog amp Debuglog Parameters a 86 Menu Save modified Parameters in Telnet 87 Menu Exit from Configuration in Telnet o 88 Exit and Reboot in Telnet 6 cis 6 on 2 reses a we a 88 e o e area ha aae Sle ie RO oe 2 ee ae we ee ee God ee i eS 101 Select ol cag eee ae ee bee ee ee CR OR a ee RS ew 101 Create Prniter POT 64 24 686 2h ae ee ER eee A 102 Name Properties of Print Server Port 2 0 00 eee ee ee ee 102 Mode Properties of Print Server Port ee 103 Select Pork lor Printer lt s soe sarae aam as a A AS 104 Add Printer Port ooo cda a a a a a e 104 List of Tables O0 IDOOEAO yr fal fal Specifications common ww e e a a 12 Characteristics of NetCom 111 113 111 PoE 113 PoE 13 Characteristics ot NetCom 211 7 21 Fob oo coc eu poco eee a eo 14 Characteristics of NetCom ell 2 5 bee a te a Be ee Ae a 15 Characteristics of NetCom 811 813 2 2 cee ee ee we ee o 16 Characteristics of NetCom 811RM 81BRM o o 18 Switch Configurations i iess E eea ea ee Re a ee ed ee oe eA ee 20 Switch Configurations NetCom 211 e saos sciora r sCeo oa aoi a aoe ata O 02008 21 Sienals DBO male cs sa 2444544 2S au a p aa a 21 Signals DB9 male
22. If Driver mode is not desired this parameter is ignored almost always The TCP Data Port is used to transmit data to and from the serial port Use the default or change the value to the settings required for your network There is also a UDP Data Port used in packet data transfer You can not switch the NetCom to UDP mode with the Manager But if it is already in this mode you can change this basic parameter January 2012 NetCom Lite User Manual 49 5 Configure with NetCom Manager 5 4 NetCom Server Settings Firewall Many networks use a Firewall to protect the stations in the network from other networks including the Internet In some situations the contact to a NetCom must pass through such a Firewall configured for NAT Network Address Translation section 11 Server Settings x Info Ports Firewall Options ka NetCom_0090100555 m Firewall settings Address 192 168 254 254 Port snmp Log Port default 1200 Cancel Verify Figure 49 NetCom Manager Server Settings Firewall To do this you must Enable Firewall and enter the Address of the Firewall The address may be the IP Address or the Qualified Domain Name DNS The Manager configures a NetCom via SNMP which uses UDP The Firewall must have a special Port to receive those data and to transfer it to the internal network Enter this port here The same scheme applies to the logging option When logging is active a NetCom li
23. January 2012 NetCom Lite User Manual 92 7 IP Modem Function 7 4 1 3 Non AT commands All these commands apply in Command Mode If a Dial command or an ATA succeeds with a CONNECT the IP Modem is in data mode Every data received on the serial port is sent to the other station IP Modem And there is a special character sequence in Data Mode which changes back to Command Mode This sequence is by default with an interval of 1 second before and after this command the three characters must appear in one second 7 4 2 S Registers for Configuration Traditional there is a set of registers to control certain operations These registers are controlled via the AT S command mentioned above This is a list of those supported by IP Modem Reg Function Range units Default SO Auto Answer Ring 0 255 0 no Auto Answer S1 Ring Counter 0 255 0 read only S2 Escape Code 0 127 ASCIT 43 for 3 Carriage Return 0 127 13 S4 Line feed 0 127 10 S5 Backspace 0 32 127 8 S8 Comma pause 0 255 seconds Accept but ignore S9 Carrier detect response time 1 255 0 1 sec 6 S12 Escape Guard time 20 255 0 02 sec 50 1 second S25 DTR Ready Delay 0 255 0 01 sec 5 50 msecs S26 RTS to CTS Delay 0 255 0 01 sec 1 10 msecs S30 Disconnect Timer 0 90 seconds 0 read only AT Tnn Table 18 IP Modem S Registers for Configuration SO i
24. Ports in the system The second option will Install Tools and Drivers However the network is not searched for Net Com Devices And of course no serial ports are installed in the system This function is designed to prepare a computer for use of NetCom Virtual Com Ports but the final installation shall be skipped for some reasons For example the computer shall be shipped to a customer and the final installation shall happen there Finally the third option is to Install Tools only no drivers At time of writing these tools are the NetCom Manager as well as the uninstall and repair functions This function should be selected when the use of Virtual Com Port drivers is not intended The NetCom Devices may be used in many different operation modes covered later 6 There are also some Hyperlinks opening access to more recent driver versions This part of the manual documents the Complete Installation so click this option January 2012 NetCom Lite User Manual 27 4 Windows Virtual COM Driver Scom NetCom Install select installation directory Xx Install destination C Program FilesSCOMANETCOM Browse car _ Figure 19 Start Driver Installation A target folder for a file copy is requested The tools and driver files are installed here The tools will appear in the Start Menu so a sub folder of your Program Files is suggested Just click the OK button Scom NetCom Installer NetCom Series Ethernet Seri
25. Terminal Block 3 6 2 169x93x42 mm WxDxH 169x99x42 mm with connectors 900 g Table 5 Characteristics of NetCom 811 813 Figure 4 NetCom 813 Top and Front Side The NetCom 811 and 813 provide eight serial ports in two rows of four equipped with DB9 male each January 2012 NetCom Lite User Manual 16 2 Introduction Figure 5 NetCom 811 813 Rear Sides On the rear side is the slot for power terminal block plus the configuration switches one switch on NetCom 811 and the Ethernet RJ45 Previous hardware versions of NetCom 811 813 provided a Round Power Jack see 3 6 1 on page 24 for supply January 2012 NetCom Lite User Manual 17 2 Introduction 2 3 2 5 NetCom 811RM 813RM 19 Phased out mentioned for reference only Serial connector DB9 male like PC Serial ports 811 8 x RS 232 813 8 x RS232 422 485 configured by DIP switch Serial Speed 14 bps up to 921 6 kbps Power Requirement AC 100V to 240V 47 63Hz 25VA Power Connector AC Power plug 3 6 3 Dimensions 258x149x45 mm WxDxH 278x155x46 mm with connectors Weight 1350 e Table 6 Characteristics of NetCom 811RM 813RM Figure 6 NetCom 811RM 813RM Top and Front Side The NetCom 811RM and 813RM are designed for 19 Rackmount usage They provide eight serial ports in two rows of four equipped with DB9 male each To the left of the front is the Ethernet RJ45 the Reset hole is in the lower right corner Also provide
26. This mode is required when the serial port is operated via the Virtual Com Driver it is the default In Driver Mode the NetCom accepts only one client per serial port An attempt to connect a second client is actively refused This is required to avoid confused configurations and data on the serial port The NetCom can monitor an open connection This is controlled by the KeepAliveMode which has three settings Off On Connect and Polling e Off never send KeepAlive packets e On Connect when a client is trying to connect to the server and there was a connection before the server checks if the first connection still exists If it does not exist anymore the server accepts the new connection This option is the default configuration e Polling the server checks in KeepAliveInterval seconds if a connection still exists If the network connection between client and NetCom seems to be unstable the configuration of Polling may be desired This way the NetCom may detect when the connection got lost When the NetCom detects a lost connection this is discarded so the NetCom is available for other clients Disabling the check is not recommended 6 2 2 2 2 TCP Raw Server As Raw Server the NetCom operates very simple It only waits for incoming data connections in Raw IP mode In contrast to the Driver Mode no driver software needs to be installed on client computers this mode operates directly on the TCP IP stack in January 2012 N
27. a Network Firewall This requires a special configuration which is skipped here Please read in detail in section 5 6 on page 52 For now proceed with the standard installation 4 1 3 Install Drivers You are now back in the NetCom Manager Click the OK button the installation continues Win dows detects the serial ports on the fresh NetCom as new Hardware All new Virtual Com Ports are installed without manual intervention by the user i Found New Hardware 1 Found New Hardware x 1 Found New Hardware x VSNetCom COM port NetCom COM Port Your new hardware is installed and ready to use I x Scom NetCom Inst 3 tom M IE Updating Se wy Y Figure 26 Virtual Com Ports installing However using early driver versions or certain configurations of Windows the system may request certain actions by the user You may be asked about to get latest drivers January 2012 NetCom Lite User Manual 31 4 Windows Virtual COM Driver Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Can Windows connect to Windows Update to search for software O Yes this time only C Yes now and every time connect a device Click Next to continue lt Back Cancel Figure 2
28. a port for the external interface and an IP Address plus a port for the LAN side The LAN IP Address is of course that of the NetCom As an example the most easy device is a NetCom 113 PRO The internal port for SNMP is 161 for UDP The serial port requires ports 2000 and 2001 for TCP Function External port Internal port SNMP 8161 UDP 161 UDP Control 9000 TCP 2000 TCP Data 9001 TCP 2001 TCP Table 14 SOHO Firewall Pass Through Configure your Router for these example ViServs and use the internal IP Address of the NetCom for the targets Connect the NetCom to your LAN Now you are ready for a very first test Use Telnet to connect to the Data port of the NetCom serial port Open a console DOS Box and type the command Telnet lt Routers IP Address gt 9001 You will be connected to the serial port Every character you type is sent out of the serial port and every received data is shown on your screen The serial parameters are pre configured in your NetCom 5 7 3 NetCom Detection through SOHO Firewall Now open the NetCom Manager as in section 5 6 above and click the Add button You again get the NetCom Manager Server Settings dialog But now you have to select the panel named Firewall see figure 49 Check the Option Enable Firewall and enter the IP Address of the Router in the Address field In the field Port enter the target port for the SNMP configuration From the Virtual Server exampl
29. and assign the same IP Address each time the device sends a request All available DHCP Server products provide such a function even in SOHO routers 4 1 1 Start the Installation Wizard This is the Installation Wizard it is named VSNSETUP EXE You ll find it on the CD ROM shipped with the NetCom Lite in the directory re sponsible for your operating system The drivers are also available on the Internet in the latest version Start this program to install the drivers Figure 17 Installation Wizard a vsnsetup VSNSETUPAG64 EXE in x64 Editions of Vista and Windows XP VSNSTUNT EXE in Windows NT January 2012 NetCom Lite User Manual 26 4 Windows Virtual COM Driver Scom NetCom Installer NetCom Series Ethernet Serial Device Server Installation Options Complete Installation Install Tools and Drivers Install Tools only Exit Install tools drivers and serial ports Setup Version 1 05 08 00 Driver Version 1 05 08 000 Driver Date 10 01 2007 Figure 18 NetCom Driver Installation The installation program offers three different ways of installation The first option is the most common used function a CompleteInstallation All driver files and tools are copied to the Windows system and installed in the Start Menu Further the drivers are installed in the system and the network is searched for available NetCom The serial ports on these devices are installed as Virtual Com
30. is configured to use Hardware Flow Control the NetCom will control the RTS line and observe the CTS line If requested any of these methods may be unchecked In that case the driver software on the computer will control the lines Override App Settings In rare situations it is necessary to ignore the applications configuration Check this box and select the Flow Control functions to use with the device Limits These buttons are prepared for future software versions January 2012 NetCom Lite User Manual 41 4 Windows Virtual COM Driver 4 4 5 Installation of NetCom Servers This section of the manual covers the correct installation of the drivers and serial ports Please do a quick review of the section 4 1 before reading further As of the time of writing the current driver is version 1 5 12 0 Scom irtual Com Properties ax General NetCom Servers icon view small view list view report view E Servers wz Ports Log YWindow NetCom_00000001 11 damian2 NetCom_0090100555 NetCom_0040100203 damian Properties Verify Exclude Search Add Remove Start Log Figure 36 Select NetCom to install The NetCom Manager program is started by the Installation Wizard Often there are more than only one NetCom listed And sometimes not all of them are to be used on this specific computer The Exclude button is used for that purpose Select a NetCom Device and click on that button The driver
31. mode if the ATB command enables this ATB2 or ATB3 Otherwise the IP Modem will ignore them Basically dialing is done to a given IP Address plus a TCP port number The IP Address is given in decimal Octet format where comma replaces the dot as the separator This is followed by another comma separating the TCP Port from the IP Address If the port is omitted the target port is the same as the local TCP Data Port as defined in the configuration of IP Modem see 6 2 2 2 7 above There are situations where the target is known by a DNS name This name can not be used in a dial string mostly because very few software will support it So there is the option of dialing to a pre defined entry by shortcut This is given by an S followed by one or two digits The shortcuts S90 to S99 are reserved so far only S1 to S4 are implemented Shortcuts are defined and saved by AT amp Znn lt FDN Port gt All other non numeric characters are understood as modifiers The IP Modem will simply ignore them This especially applies to space characters Typically dial strings are ATDT192 168 254 254 2003 lt cr gt Dial another IP Modem as a Modem to Modem AT amp Z12 demokit vscom com tw 23 lt cr gt Define a shortcut for configuration port ATDPS12 lt cr gt Dial the other IP Modem as Modem to Host Table 19 IP Modem Sample Dials 7 5 2 AT O online data mode If a connection is established the IP Modem can still be in co
32. of serial speed For hardware reasons this detection is not implemented The command ATNO to disable automatic detection is accepted and answered with OK The ATN1 to enable automatic detection is not available and answered with the ERROR response 7 5 14 AT Z reset Reset the configuration to a stored profile IP Modem only supports profile 0 for simplicity Same as ATZO or as AT amp F or AT amp FO January 2012 NetCom Lite User Manual 96 7 IP Modem Function 7 5 15 AT amp F factory settings AT amp FO0 This command has historically been designed as Reset to Factory settings while ATZ simply meant reset At time of invention users could change the default behavior of their Modem so ATZ activated the stored profile Nowadays the ATZ is ignored by many software Instead AT amp F is used followed by complex initialization strings User may save profiles which are selected by AT amp F0O or AT amp F1 There is no longer a documented or commonplace way to revert to Factory Defaults The IP Modem has such an option clear the InitString via Telnet web but this is not usable to reset the configuration when the device is used as a Modem So IP Modem will support only user profile 0 and it uses AT amp F9 to really reset the user profile to the Factory defaults 7 5 16 AT amp C DCD configuration AT amp C1 Configure the DCD signal to the PC As IP Modem this signal may be generated by the DTR output A standard modem c
33. quick installation so only the common options are covered Section 4 4 provides the details of NetCom Manager and also the options available with the Virtual Com Ports 4 1 Installation Procedure Before starting installation it is essential to have an IP configuration ready for the NetCom Device to install You may read the TCP IP Description section 9 below The default configuration is based on DHCP which is fine in many networks If in doubt please ask your Network Administrator for help Further it is assumed the network access is functional It is recommended to use Ethernet via Hub or Cross Over cable for configuration The following description is based on Windows XP Professional with Service Pack 2 installed The installation on other configurations of Windows is similar The installation of drivers is described first This is followed by a procedure to verify a correct installation The last part of this section is about the uninstall or update processes of drivers and tools Drivers are provided for Windows NT Windows 2000 up to Windows 7 Windows Server 2000 up to 2008 R2 The x86 and x64 Editions have separate drivers The drivers use the IP Address of NetCom Servers to operate So the configuration of the device should avoid to change that over time This is either done via a static IP Address or by proper configuration of the DHCP server In the second case the DHCP server shall recognize the NetCom by its MAC Address
34. the Main Menu and directly select the serial port to configure The settings available in this menu are by port Therefore first the port to configure has to be chosen 4 4 l Serial Settings Port 2 Transfer Settings l l Figure 64 Port Selection in Telnet Just select the port by placing the cursor and then press lt Enter gt The next option is to configure the Serial Settings or the Transfer Settings January 2012 NetCom Lite User Manual 67 6 Configure the Operation Modes 6 2 2 1 Serial Settings Web menu SERIAL CONFIGURATION column Port N Serial Settings Telnet SerialPorts select Port N Serial Settings Some NetCom devices allow to operate in RS422 485 modes This is configured by the DIP switches associated with the port PortType current displays the current setting Port 1 PortType current rs232 DefaultModel 16550 MaxBaudrate 921600 Model E Baudrate 38400 y Manual 38400 FlowT ype None y DataBit 8 Parity None y StopBit fi y RxFifoLength 2048 RxTriggerLevel fi 248 TxFifoLength 2048 TxTriggerLevel 2 800 Serial Settings Port Nr 1 PortType current rs232 DefaultModel 16550 MaxBaudrate 921600 Model 16550 Manual 110 FlowType None DataBit 8 Parity None StopBit 1 RxFifoLength 2048 RxTriggerLevel 1248 TxFifoLength 2048 TxTriggerLe
35. 5 4 Windows Virtual COM Driver As usual this behaves different in Windows NT There is no Device Manager To change these standard parameters open the Ports applet in the Control Panel However it is suggested you open the new NetComManager applet instead Change to the Ports view as in figure 38 Double click on the small icon at the left side In this dialog go to the Local Settings tab as seen above 4 4 2 Performance Issues Operation through the network causes some extra time which is approximately 5 Milliseconds For comparison with a port internal to the computer this time may be just some 100 Microseconds This added time has an impact on reaction times Some data protocols may be sensible A lot of configurations are possible to compensate for this But these have an effect on the sheer data throughput of the virtual serial port NetCom COM Port COM3 Properties ax General Local Settings Performance Driver Details l j NetCom COM Port COM3 vom V Driver Default Best Performance Good Performance Short Latency Virtual FIFO Off y 3 Figure 33 NetCom COM Port Performance Settings Consequently the configuration starts on the Performance tab There are four already defined sets of parameters Best Performance is the default configuration The driver software and the NetCom communicate with big data blocks As a result a reaction on short events on the serial port is somehow delayed
36. 7 New Hardware Wizard Automatic searching of Windows Update website will take quite a long time So select the third item and click on Next This question neither appears on Windows XP prior to SP2 nor on any previous Windows version January 2012 NetCom Lite User Manual 32 4 Windows Virtual COM Driver Found New Hardware Wizard This wizard helps you install software for NetCom COM Port gt If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to do Install from a list or specific location Advanced Click Next to continue lt Back Cancel Figure 28 Install drivers for the serial ports The pre selected automatic installation is fine just click on Next The driver files are already copied to your hard disk Now Windows installs them in the system directory To Finish the installation click on that button as it appears If the system can not detect the drivers use the second option Add the folder as given in figure 19 to the search then the system will detect suitable driver files These latest steps happen for each serial port on the NetCom Device Just repeat the procedure until all ports are successfully installed Windows will show you this In most situations it is not required to reboot the system Of course you can do that now to test the drivers 4 2 Verify the Installation In the Start Menu you ll
37. 8 35 NetCom COM Port Remote Settings Properties ooa oaa 40 36 Select NetCom to install eo se oc s sassu aa aa re a eee 42 or Excluded NetCom s ss s osa son cos Bae BE eee a 42 38 NetCom Manager Ports View aoaaa aaa e 43 39 Reconfigured NetCom found aoa aa 43 40 Replaced NetCom found sassa oe 2 ter eg ad e 44 41 Uninstall NetCom Drivers via Control Panel 2 2 2 2 0 ee eee 44 42 Uninstall NetCom Drivers in Start Menu 2 2 2 002 ee ee eee 45 43 Remove Repaif ooo bw dee eee DD ee A e i 45 44 NetCom Manager es e cec ia boegis koe eed eee R 46 45 NetCom Manager in Start Menu e 46 46 NetCom Manager Servers Panel e 47 47 NetCom Manager Server Settings Info o 48 48 NetCom Manager Server Settings Ports 0 00200200004 49 49 NetCom Manager Server Settings Firewall 50 50 NetCom Manager Server Settings Options o 51 51 NetCom Manager Port Configuration for Driver 2 54 be NetCom Helper Service o o es saioe be Bae a a a e a E 56 53 Enter Qualified Domain Name 0 0 eee ee ee es 56 54 Configuration Menu in Web Browser 0 a eee ee ee es 60 55 Request to Reboot in Web Browser 2 a ee 60 56 Password Request in Telnet ee 61 57 Select Terminal Type in Telnet o e e o 61 58 Main Menu of Configurat
38. ANSI emulation Please choose your terminal type 1 VT100 2 VT52 1 1 Figure 57 Select Terminal Type in Telnet The configuration with Telnet is menu driven NetCom 123 WLAN V2 4 1 ServerConfig SerialPorts Tools Save Exit AO h HELP Server configuration settings Figure 58 Main Menu of Configuration Console in Telnet This is the start point for configuration ServerConfig has all options to configure the NetCom device itself including the IP Parameters to access it SerialPorts defines settings related to the serial port Tools has some utilities like PING or displays statistics In Exit you may leave the menu or reboot the NetCom At any time you can get a short hint by typing H for help January 2012 NetCom Lite User Manual 61 6 Configure the Operation Modes Use the cursor keys to select the parameter you want to change Hit lt Enter gt to edit them Type the new value or select provided options Use lt Esc gt to leave a parameter or menu Please check the configuration of your Telnet if there are any problems 6 1 3 Serial Configuration In some situations it may be impossible to get network access to the NetCom Device If this happens e g by an accidentally misconfiguration neither Telnet nor the web interface is functional It may be even impos
39. But it may be more easy to do this via the web interface of the NetCom The NetCom may be protected for access in this case you must place the current Server Password in the dialog The option to change the password is reserved for a future extension Exclude Server is related to the Driver installation only You may Enable Log to see events at the NetCom for monitoring If enabled the log will also appear in the central Log Window At any time it s possible to Clear the log or Capture the data to a file January 2012 NetCom Lite User Manual 51 5 Configure with NetCom Manager 5 6 Manual Detection Installation of a NetCom Sometimes the NetCom Device Server can not be detected by the automatic in the NetCom Man ager To detect and configure devices the protocol SNMP is used The detection is done by sending out a broadcast on all available network interfaces of your computer This SNMP broadcast is re alized as an Ethernet broadcast Such a broadcast is only transmitted through Hubs and Switches When there is a Router between the computer and the NetCom probably the broadcast is not transmitted further This is especially the situation when the NetCom is located somewhere via Internet but also in big networks of some companies If this is the case the detection has to be done manually Refer to figure 36 and Add the NetCom by use of the button Enter the IP Address of the NetCom in the NetCom Manager Server Settings and click th
40. Com If it is a valid content it is stored in the Flash Memory When the upload is finished NetCom will Reboot 6 2 3 5 Save and Load Configuration Web menu Tools section Configuration File Via web browser it is possible to save the actual configuration to a text file Of course it is also possible to load the saved configuration into a NetCom January 2012 NetCom Lite User Manual 85 6 Configure the Operation Modes Configuration File Save Save the Configuration Parameters in a File Download Load FumentsiNetCom423 cfo Browse Upload Figure 83 Save and Load Configuration in Web Browser This may be very useful when configuring several NetCom of the same type Configure one device and save the file Change the configuration file for the necessary parameters and upload the modified version to the next model 6 2 3 6 Logging and Debug Web menu Tools section Syslogging Telnet Tools option Logging The NetCom has two options of Logging There is the standard Syslog and a second option of logging via Telnet Syslogging Syslog On y Destination syslog vscom de Facility fi Dehuglog On y Debug Port fi 200 Logging 4 Ping Syslog Off Statistic Destination Netstat Facility 1 Wireless Logging Debuglog Off Firmware Debug Port o 4 Figure 84 Sys
41. Com Lite User Manual 46 5 Configure with NetCom Manager 5 1 Starting NetCom Manager When NetCom Manager is started it will Search the NetCom in your LAN by SNMP This process may take up to 30 seconds The devices in a LAN are typically found in the first seconds If this is enough for you you can stop the search by click on the Done button Scom irtual Com Properties j 2 x General NetCom Servers icon view small view list view report view A Servers Fa Ports Log Window NetCom_0000000111 damian2 NetCom_0090100555 NetCom_0040100203 damian Properties Verify Exclude Search Add Remove Start Log OK Cancel Figure 46 NetCom Manager Servers Panel The NetCom are listed here in the Servers panel Since the Search uses broadcast mechanisms the range is limited If you have Routers in your network or you contact some NetCom via Internet you must Add them manually section 5 6 Enter the network parameters to access the NetCom Select a NetCom and click on the Properties button double click the Icon or use a right click Using Verify the NetCom Manager contacts the NetCom to check if it is properly configured and online Exclude is only useful in conjunction with the Virtual Com Drivers so skipped here Search repeats the search from the program start and may be used at any time Remove removes a NetCom server from this list This option is most often used to clear old da
42. Every device can send a request the reply is a special configuration for this device on the network The NetCom Devices support DHCP by default so just use or activate it For best operation the DHCP server itself should be configured It may identify the NetCom Device by its MAC or Ethernet Address There should be an internal database to always provide the same IP Address to stations with a given MAC There are free DHCP server programs available for Windows Operating Systems If the DHCP server can not be configured to provide a reserved IP Address to the NetCom it may happen the NetCom will receive a changed address after some time This will make the driver for this NetCom inoperative To solve such problems driver version 1 5 6 invents the Net Com Helper Service section 5 8 on page 55 to assist DHCP Server for Windows TFTPD32 January 2012 NetCom Lite User Manual 105 9 TCP IP Description 9 1 3 Automatic Configuration APIPA A different type of automatic configuration is used by Windows If a station is prepared for automatic settings it will search for a DHCP server see above But in SOHO networks this server might not exist Windows detects this failure and the computer self assigns an IP Address This address is from the reserved LINKLOCAL block for such purposes The IP Address is like 169 254 N N where N N is from 1 0 to 254 255 the corresponding netmask 255 255 0 0 is mandatory The IP Address is se
43. LISTEN tcp 0 0 0 0 2010 0 0 0 0 0 LISTEN tcp 0 0 0 0 2011 0 0 0 0 0 LISTEN tcp 0 0 0 0 2020 0 0 0 0 0 LISTEN tcp 0 0 0 0 2021 0 0 0 0 0 LISTEN tcp 0 0 0 0 2030 0 0 0 0 0 LISTEN tcp 0 0 0 0 2031 0 0 0 0 0 LISTEN tcp 192 168 1 243 80 192 168 1 42 1280 TIMEWAIT tcp 192 168 1 243 80 192 168 1 42 1281 ESTABLISHED udp 0 0 0 0 161 udp 0 0 0 0 19970 udp 192 168 1 243 32331 1 1 Proto Local Address Foreign Address State tcp 0 0 0 0 23 0 0 0 0 0 LISTEN tcp 0 0 0 0 80 0 0 0 0 0 LISTEN tcp 0 0 0 0 2000 0 0 0 0 0 LISTEN tcp 0 0 0 0 2001 0 0 0 0 0 LISTEN tcp 0 0 0 0 2010 0 0 0 0 0 LISTEN tcp 0 0 0 0 2011 0 0 0 0 0 LISTEN tcp 0 0 0 0 2020 0 0 0 0 0 LISTEN tcp 0 0 0 0 2021 0 0 0 0 0 LISTEN tcp 0 0 0 0 2030 0 0 0 0 0 LISTEN tcp 0 0 0 0 2031 0 0 0 0 0 LISTEN tcp 192 168 1 98 23 192 168 1 42 3665 ESTABLISHED udp 0 0 0 0 161 udp 0 0 0 0 33320 udp 192 168 1 98 10397 Figure 81 Netstat Sample Output A Foreign Address of 0 0 0 0 is listed when NetCom is waiting for an incoming connection LISTEN mode If the value is not 0 0 0 0 the connection is either active ESTABLISHED or already closed TIMEWAIT In the web browser you may Update the Netstat output Via Telnet the output may not fit on the screen then the display will start with 1 2 in the first line Or even more for a long list You may change to a different page by using the Page Up Down January 2012 NetCom Lite User Manual 83 6 Configure the Op
44. address YSCNP CONFIG x 2 Server with Ip Port 192 168 1 247 0 was probably replaced Is this a new server Figure 40 Replaced NetCom found The second case occurs when a NetCom is replaced by another device This new device shall have the same configuration especially the same IP Address When you start the NetCom Manager it will detect a new device with parameters already in the database So a similar question appears An installation of a new serial port is assumed again If the device shall replace the old one click on the No button In general the driver software and the NetCom Manager identify the NetCom Devices by the combination of IP Address and serial number If one of these is changed the above requests appear 4 5 Uninstall the Drivers and Tools To completely uninstall the NetCom Drivers and files there are three methods The usual way is to use the Add Remove Programs applet in the Control Panel and remove the NetCom Drivers This will start the NetCom uninstallation program VMware Tools Size 27 74MB amp Scom drivers for Scom Yirtual Coms Size 1 10MB h Last Used On 10 To change this program or remove it from your computer click Change Remove Change Remove a Windows Installer 3 1 KB893803 Figure 41 Uninstall NetCom Drivers via Control Panel January 2012 NetCom Lite User Manual 44 4 Windows Virtual COM Driver As a second way you may start the Uninstall program in the
45. al Device Server PITT TTT Installing application environment Setup Version 1 05 08 00 Driver Version 1 05 08 000 Driver Date 10 01 2007 Figure 20 Copy Driver Files Some files are copied to your hard disk this is the usual process similar to other Windows installa tions The upper bar increases with the progress of each step performed in the installation process The lower bar illustrates each step performed until full installation is finished January 2012 NetCom Lite User Manual 28 4 Windows Virtual COM Driver 4 1 2 Find and Configure NetCom Devices When all files are copied the NetCom Manager program is started This searches for all NetCom Devices on your network YS NetCom Manager 2 x NetCom Servers icon view small view list view report view E Servers iW Dare l EX i an ininda 1 P Searching Local Network Slow Mode dam ERTTEREHAN Done Properties Exclude Search Ade Remove Start Log Cancel Apply Figure 21 Discover and Select NetCom Devices for Installation After short time the search process is finished All dis covered NetCom are listed In your very first installation EN servers of NetCom Devices and Drivers you should connect only one NetCom to your network This single Device is listed here Identify it by comparing the serial number shown in the NetCom Manager NetCom 0030 100555 Figure 22 NetCom in Manager 4 1
46. al Printer but de select the automatic detection of the printer type as shown below Click the Next button to continue 8 3 1 1 Create new printer port You need to create a new port for the printer the required type is a Standard TCP IP Port January 2012 NetCom Lite User Manual 101 8 Print Server Operation Select a Printer Port y Computers communicate with printers through ports Figure 90 Create Printer Port In the Add Standard TCP IP Port Wizard just click the Next button and have the NetCom Serial Device Server properly configured for LPD operation 8 3 1 2 Name the new Printer Port Then the properties of the new printer port must be en tered Add Port For which device do you want to add a port sick feo corel Figure 91 Name Properties of Print Server Port You need the network address of the NetCom this may be the IP Address or a DNS name for the device The port name is only for internal identification in Windows It will be listed in the possible ports to connect printers to The name is similar to LPT1 or Com3 but it does not denote any real hardware in your computer You are free to enter any name not used so far The name is not related to the LPD Queue name on the NetCom Again click the Next button January 2012 NetCom Lite User Manual 102 8 Print Server Operation 8 3 1 3 Configure the Printer Port As the last step in creating the printer po
47. allows for up to four predefined targets available with special Dial commands The IP Modem Config is known as the Init String in standard modems January 2012 NetCom Lite User Manual 6 Configure the Operation Modes 6 2 2 2 8 Print Server Function The NetCom firmware version 2 2 introduces the function as a Print Server according to RFC1179 also called a Line printer daemon A print server is accessed through its IP Address via one specified TCP Port see section 6 2 1 2 Data is handled in distinct queues each with a certain name Each queue is handled by a certain serial port and the data is sent to the serial printer attached to this port Mode Print Server y QueueName fipa InitString Port Nr 1 Print Server QueueName lpd1 InitString Figure 75 Print Server Configuration Each serial port configured for Print Server operation has its separate QueueName The default value is lpd plus port number The InitString is a special feature of NetCom This string is sent to the serial printer at the beginning of the next queued print job The definition is in section 8 2 1 on page 99 January 2012 NetCom Lite User Manual 79 6 Configure the Operation Modes 6 2 2 3 Save Web menu SERIAL CONFIGURATION at bottom Save Again at the bottom of the web page below all the serial port options there is the button Save This will store all configurations done for the curre
48. an have DCD always on and it can have the DCD follow the external carrier signal When set to always on by AT amp CO the DCD may have a separate source The DTR is free to serve as a DSR to the PC The operation of DSR is defined by AT amp S so these commands are related AT amp C1 is the default the DTR operates as DCD to the PC this will require a cable connecting NetCom DTR to the DCD of the PC This command has priority over AT amp S 7 5 17 AT amp S DSR configuration AT amp S0 Configure the DSR signal to the PC As IP Modem this signal may be generated by the DTR output A standard modem can have DSR always on as long as the Modem has power Or it can have the DSR signaling whether the IP Modem is in command or in data mode When set to always on by AT amp SO this is the default the DSR may have a separate source The DTR is free to serve as a DCD to the PC The operation of DCD is defined by AT amp C so these commands are related An AT amp S1 has DSR follow the data mode The AT amp C has priority over this command AT amp S1 can only be effective if AT amp CoO is set 7 5 18 AT amp D DTR configuration AT amp D2 Understand the DTR signal of the PC The input on the IP Modem is the DSR which requires a proper serial cable Usually this signal is either ignored or serves to disconnect from the phone line There are four options AT amp DO Ignore DTR from PC AT amp D1 Toggle DTR to enter command mode AT amp D2
49. anges like IP configuration others do not require a restart m do Do you want to save the changes Save Parameter No Exit O E SE eee ee 4 Figure 87 Exit and Reboot in Telnet Also here if parameters are changed during the session confirmation for saving them is requested Of course the Telnet configuration is closed because all TCP connections are terminated by the reboot process 6 3 Erase Configuration of NetCom Sometimes it is required to clear any configuration done and go back to the Factory Settings Users might think this is possible with the Reset button It is not done this way The Reset button is just a way to restart the NetCom without removing the power To make a clean configuration the DIP switches must be configured to the pattern of Fac tory settings Refer to Section 3 1 or to the table on top of the NetCom case When this pattern is chosen the NetCom has to be restarted by power off or by using the Reset button This is for security When changing a DIP configuration the Factory settings might appear by accident So the NetCom requires to be restarted with this DIP pattern active to avoid accidental damage of the configuration While restarting the NetCom erases the current configuration and replaces January 2012 NetCom Lite User Manual 88 6 Configure the Operation Modes the parameter with the default values When this is
50. as given above 3 1 When the client computer is another NetCom in TCP Raw Server mode this will virtually connect the devices attached to the serial port January 2012 NetCom Lite User Manual 72 6 Configure the Operation Modes Mode TCP Raw Client y Destination Connect Triggered y ShortHoldTime 0 Raw Client Destination 192 168 1 5 2001 Connect Triggered ShortHoldTime To Figure 70 TCP Raw Client parameters Under certain conditions the NetCom establishes a Raw TCP connection to a pre defined Destination Since version 2 0 of the NetCom Firmware the Destination can hold multiple hosts as targets for a connection They are entered as a comma separated list of DNS names or IP Addresses Each destination will have a TCP port number separated by a colon Instead of a single IP Address or DNS name a range of IP Addresses is also valid This range must be followed by the TCP port number as in 192 168 254 12 192 168 254 17 2077 The parameter Connect defines if NetCom uses the connections as Permanent Triggered or by DSR With Permanent the NetCom attempts to open the connection as soon as it is available In Triggered mode any activity on the serial ports establishes the connection inactivity of longer than the ShortHoldTime cause NetCom to close the connection With DSR the TCP connections follow the state of the DSR signal at the NetCom serial port When it becomes active they are establis
51. ation Modes 6 Configure the Operation Modes The NetCom Devices are often used without the installation of a driver software Customer appli cations contact the NetCom directly using network functions These setups require independent configuration of the NetCom Device and the serial ports There are five ways to do this configura tion The NetCom offers a Web browser interface configuration via serial port via Telnet and also via SNMP This SNMP option is not covered in this manual please see separate documentation The NetCom Manager program for Windows is already explained above The access to the NetCom via web interface or Telnet are done via a TCP IP connection between the computer and the NetCom So users need the IP Address of the NetCom The most easy way to retrieve this information is the NetCom Manager program section5 Start it and open the Info Panel figure 47 of the NetCom Server you want to configure This panel displays the current IP Address of the NetCom Do not change the parameters just write down the value The default configuration of a NetCom is for use of a DHCP server When such is not available the IP Address defaults to 192 168 254 254 When the IP Address of the NetCom is not in final state leave the NetCom Manager open while doing the first configuration of the NetCom Server But in general the software may be closed as soon as the IP Address is known 6 1 Accessing the Configurations Here the manual
52. by number as nnn IP Address and TCP Port E g ATD10 0 8 42 2023 will dial to port 2023 on IP Address 10 0 8 42 E Echo on off Enable Disable local echo of command HO Hang up Terminate the TCP connection I Device Information I0 through I9 report information L Speaker Volume Ignored always answered with OK M Speaker On Off Ignored always answered with OK N Auto serial speed NO no Auto N1 reports error O Return to data mode Q Result Codes Enable or disable result codes strings S nn S S Register Set request configuration registers VO 1 Responses Numeric text responses to commands X Busy Dial detect Ignored always answered with OK Z Reset to User profile Standard 7 4 1 2 Extended AT Commands Table 16 IP Modem Standard AT Commands slightly different syntax depending on the model AT Standard Extensions IP Modem Function amp C DCD control When to turn on DCD by IP Modems DTR amp D DTR meaning Hang Up Command Mode or Reset amp F Load factory Default amp K Flow Control amp S DSR control When to turn on DSR by IP Modems DTR amp V View Profiles amp W Store Profile amp W0 amp W1 is Standard ATZ1 loads profile 1 amp Zn dd Save for short dial Define possible targets by DNS name or IP Address C1 V 42bis enable Ignored Q Flow control See amp K Table 17 IP Modem Extended AT Commands These commands are used in modern modems and have
53. by shortcut to the PC DTR In some configu rations the NetCom DTR must serve as the DSR This is configurable by a command The recommended cable connects as shown in this table Please note this installation does not use the simply crossed signals Especially the DSR of the PC is internally connected to the DTR of the PC DB9m PC IP Modem DB9m DB9f 3 TxD RxD 2 3 2 RxD TxD 3 2 7 RTS CTS 8 7 8 CTS RTS 8 6 DSR PC DTR internal loop back 4 DTR DSR 6 4 1 DCD DTR 4 6 5 GND GND 5 5 Table 15 IP Modem cable The limitation of signals is a restriction in function compared to real world serial modems Since most installations do not require the full availability of all signals the required subset can be selected 7 3 Operation Modes by IP Modem The function of IP Modem may be configured port by port On a NetCom with a single port there is no much of a difference However a NetCom with more serial ports operates each port independently In the following sections of this manual the phrase serial port of a NetCom configured to operate as IP Modem is replaced by P Modem for brevity Two basic operation modes are available The first and default mode is Modem to Modem This requires a serial port of a NetCom configured as IP Modem on both ends of the connection When one IP Modem dials the other the connection is
54. cablematic User Manual NetCom Lite a o s ea 09 0 0 00 00 0000U0 ee eee eeoeeeeeeeeeeeeeeeeeeeeeeeeeee eee ees ee eee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eee ee ee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeenes DOODIA ee ee eeeeoeeeeoeeoeoeoeoeeeeeeeeeeeeeeeeeees eee eoeoeeeeeeoeeoeeeeeeeeeeeeeeeeeeves ee ee OOGO COCO A O OGO OOO UAK EAU A A The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement Copyright Notice Copyright 2009 2012 Vision Systems All rights reserved Reproduction without permission is prohibited Trademarks VScom is a registered trademark of Vision Systems GmbH All other trademarks and brands are property of their rightful owners Disclaimer Vision Systems reserves the right to make changes and improvements to its product without pro viding notice Vision Systems provides this document as is without warranty of any kind either expressed or implied including but not limited to its particular purpose Vision Systems reserves the right to make improvements and or changes to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Vision Systems assumes no responsibility for its use or for any infringements on the rights of thi
55. ced up to 60 minutes later When the change occurs just before the Helper Service checks the connect it will be recognized very soon if the check happens just after the change it will require the maximum time Usually an installation requires to have changes detected very soon but this is not possible on networks The NetCom Server has no feature to contact all clients and notify them of a changed configuration This is because the NetCom Server can not manage a possibly huge list of client computers So the Helper Service is installed on the client computers If there are a lot of clients very frequent polls cause a high load For one side on the network but most important on the NetCom Server The best choice for a suitable polling interval depends on the usage period of the client computer If it is unused for some hours per day over night it will detect a change at least the next morning Provided the change happens over night If the NetCom Server uses an Internet connection with regular disconnects it is a good idea to configure those disconnects to times of inactivity of the clients For manual detection of changes it is possible to restart the NetCom Helper Service Controlling a service requires administrative privileges on the Windows system A restricted user account can not do this Restricted users use the Polling Period configured by the system Administrator January 2012 NetCom Lite User Manual 58 6 Configure the Oper
56. ces in your network You can start it by several ways First of all it is stored on the CD ROM named NETCOMMGR EXE It is possible to start it directly from the CD ROM See this Icon When the Virtual Com Drivers are installed there are more options to run the program In Windows NT the same Icon appears in the Control Panel to start the NetCom Manager program Also the process of installing the drivers created a new program group in the Start Menu Figure 44 NetCom This section of documentation focuses on management of the NetCom Manager Devices The options to configure driver specific parameters of the serial ports are skipped here This includes some buttons and panels They are described in total in section 4 4 in the documentation of the drivers and panels While in the configuration process a click on a button or a double click on an item opens Rye Y FM NetCom Manager properties or other options In many situations x Repair a right click with the mouse opens context _ is f x Uninstall sensitive options Just try it out The NetCom Manager is designed to help configure driver op tions So for very detailed configuration of a Figure 45 NetCom Manager in Start Menu NetCom it is better to use the Web browser interface or do it via Telnet as described in section 6 Here are the options NETCOMMGRA64 EXE in x64 Editions of Windows 3NETCOMMGRNT EXE on Windows NT January 2012 Net
57. costs for these lines management and possibly hardware using the Intra or Internet 2 The customer wants to contact several stations from a central server Because of frequent target changes he does not want to define the target by a Virtual Com Port 3 Remotely distributed devices contact a central system by Modem This is the reverse of option 1 4 A computer without Network access shall have at least limited con trol on the connections established by a NetCom 5 Old fashioned BBS installations become accessible via Internet The typical multi modem box is replaced by a NetCom Server with mul tiple ports configured for IP Modem operation 7 2 Serial Signals and Cables A real modem provides the same signals as the serial port of a PC However where a signal is an output on the PC it is an input to the modem and vice versa So in the NetCom the emulation of a modem must be incomplete By exchanging RxD and TxD the data connection is fine the same happens for handshaking signals RTS and CTS The DTR of the PC is connected to DSR of NetCom this is simple The RI may be ignored some connectors for serial ports also do that However a real modem provides DSR and DCD to the PC There is only the DTR left on NetCom to serve these signals In most configurations the NetCom DTR serves as the DCD to the computer January 2012 NetCom Lite User Manual 90 7 IP Modem Function The cable must provide a DSR to the PC then e g
58. ctive state lt RTS gt and lt RTS gt activate and deactivate the RTS signal while lt _DTR gt and lt DTR gt do the same for DTR 8 2 1 5 Timing Options Especially when using Modem Control signals it will be required to hold them in a given state for a defined amount of time This may be done by applying a Pause command in the InitString The delay is given as numeric value in milliseconds msec preceded by a P So lt P50 gt causes the NetCom to wait 50 msec before proceeding with the next command or start printing Up to three digits are possible If more than 999 msec are required the Pause command must be repeated Please note The delay is not executed as an exact time NetCom guarantees to wait at least the required amount of time The smallest delay possible is 10 msec due to internal handling of date and time 8 2 2 Reset Example For example here is a hypothetical serial printer The serial port operates at 1200 bps 7 bit and even parity and 1 stop bit For Reset the printer requires the command lt ESC gt O0 sent with DTR and RTS off When the data is transmitted DTR must be on and 50 msec later RTS must also be on Each character sent is 10 bits long including the start bit At 1200 bps each character needs 8 3 msec for transmission So the transmission lasts for 25 msec To be sure the control signals are inactive an extra delay is applied after change of signals The resulting string would be
59. current settings of the Modem Status lines And it will itself set the Modem Control lines as required by the other host The CTS is connected to the RTS of the partner and DSR connects to DTR Since this operation requires another NetCom to accept the connection both NetCom together operate as a long Null Modem cable The data is sent via a tunnel through the network The configuration as Server top part requires the same parameters as the Driver Mode hence TCP Port Control and TCP Port Data Also the KeepAlive function operates the same The configuration as Client bottom first requires a destination Here it is given by name but a direct IP Address may be more usual On the destination there is also a TCP Port Control and TCP Port Data to accept the connect of the NetCom January 2012 NetCom Lite User Manual 74 6 Configure the Operation Modes The Connect methods are the same as with the TCP Raw Client mode So connections to the partners are permanent last until there is no activity for a given time or they are controlled by the DSR signal Attention You must not configure both NetCom with a Connect option configured as Permanent This will result in each of them attempting to contact the other at the same time Both NetCom will reject the connect because they are already busy establishing a connect of their own Instead create an asymmetric configuration either use one of the NetCom in Driver Mode or configure it w
60. cus eg ea Bolo Timing Options lt s es ea kk ee a 8 2 2 Reset Example noaoae 8 3 Operation in Windows 0 002 ee eee 8 3 1 Add a New Printer aoaaa e 8 3 1 1 Create new printer port 8 3 1 2 Name the new Printer Port 8 3 1 3 Configure the Printer Port 2 62245 6b aeaa 383 14 Install Printer Driver 2 eee ee eners 8 3 2 Modify an Existing Printer 8 3 2 1 Open the properties 8 3 2 2 Add the Print Server Port 9 TCP IP Description 9 1 Recommended Settings o ooo a 9 1 1 Statie Configuration s lt ss es ss seaca wps ak mpra 9 1 2 DHCP Configuration 26 esa a sade ea e ea 9 1 3 Automatic Configuration APIPA 9 1 4 Other Configuration e e 2200200 10 Troubleshooting Guide 11 Glossary of Terms 12 History List of Figures A ee Sd NetCom 111 Top and Front Side usos ee we A ei NetCom 211 Top and Front Side o o NetCom 413 Top Front and Rear Side o o NetCom 813 Top and Front Side o o NetCom 811 813 Rear Sides ce occ NetCom 811RM 813RM Top and Front Side NetCom 811RM 813RM Rear Side Connector DBO male aa saso g ora mag e ara ep aa aa a a Connector RJ45 and DB9 male o Connector DB9 female o o 0200002 2 eee RS 4227 485 Option Jumper
61. d Pair configuration have an impedance of about 1200 In RS 422 this resistor has to be placed at the far end from the sender in RS 485 the typical configuration requires one resistor at each end of the cable 3 4 Serial Port Simple Settings There is one set of 4 2 Dip switches to configure the operation mode of the NetCom Device On NetCom 413 813 and 813RM there is a separate set for each serial port Before connecting a serial device the serial port configuration must be completed Warning a bad configuration may cause serious damage in the NetCom or the connected device To avoid these IT min problems it is recommended not to connect a device to the serial ports in OU 1 TEI the first installation The serial ports should be configured for RS 232 This Figure 12 DIP Figure 13 DIP Other is done by setting the DIP switches like NetCom 211 NetCom this example 3 5 Network The NetCom connects to Ethernet The NetCom Servers do not perform a DHCP request when the Ethernet interface becomes active The connector for Ethernet is the usual RJ45 Simply connect it to your switching Hub A direct connect to your computer requires a cross over cable When the connect is done the Link LED on NetCom yellow will light When data traffic occurs on the network this LED will blink It depends on your network whether a 100Mbit or a 10Mbit connect will be established A 100Mbit net causes the Speed LED on NetCom green to l
62. d is a mounting kit with two angles for a 19 rack Figure 7 NetCom 811RM 813RM Rear Side January 2012 NetCom Lite User Manual 18 2 Introduction On the rear side are the power jack and the configuration switches a single switch on NetCom 811RM 2 4 Packing List e NetCom Lite Serial Device Server e Power supply 12V 1 0A for DC Models NetCom 111 113 211 411 413 811 and 813 e CD ROM with driver and configuration software e Quick Installation Guide January 2012 NetCom Lite User Manual 19 3 Hardware Description 3 Hardware Description This section focuses on the options provided by the hardware of NetCom Lite Serial Device Servers 3 1 Serial Port Configuration The serial ports in the NetCom Devices follow the specifications of RS 232 It is also possible to use the serial port in RS 422 or RS 485 mode This is defined by a set of DIP switches or by software Here is a list of the available modes and the switch settings Warning a bad configuration may cause serious damage in the NetCom or the connected device Line Mode Comment S1 S2 S38 S4 Switch Positions RS 232 Configuration via serial port Off Off Off Off RS 232 Data communication Off Off On On RS 422 Data communication Off On On On RS 485 by ART 4 wire Full Duplex On On On Off 2 wire Half Duplex with Echo On On Off On 2 wire Half Duplex no Echo On On
63. de Driver Mode Null Modem Tunnel TCP Raw Server TCP Raw Client TCP Advanced Settings UDP Mode IP Modem Print Server Pointto Point Protocol Transfer Settings Serial Settings Port Nr 1 a a E Null Modem Tunnel TCP Raw Server TCP Raw Client TCP Advanced Settings UDP Mode IP Modem Print Server Point to Point Protocol Figure 67 Serial Port Mode Selection The following paragraphs explain these operation modes as well as their parameters and configu ration in detail 6 2 2 2 1 Driver Mode Only very few parameters have a function in Driver Mode NetCom is operating as a Server in TCP mode it accepts two connections per serial port This mode is required when the driver software for Virtual Com Ports shall be used January 2012 NetCom Lite User Manual 70 6 Configure the Operation Modes Mode Driver Mode y TCP Port Control 2000 TCP Port Data 2001 KeepAliveMode On Connect y KeepAlivelnterval o Driver Mode TCP Port Control 2000 1 TCP Port Data 2001 KeepAliveMode On Connect KeepAliveInterval O Figure 68 Driver Mode parameters The first connection is used to transmit the serial data this is the TCP Port Data And the other is used to transmit control information TCP Port Control This control connection includes the configuration of the serial port as well as signals for changed Modem Status lines
64. driver software Tx Trigger Level The serial port on the NetCom Device buffers data for transmission to external devices If the amount of data in this buffer drops below this level the NetCom is capable to receive new data It will send a related event to the driver software Rx Trigger Level When the serial port has received this amount of data these are sent to the driver on the connected computer If the amount is less than this the NetCom applies a timeout of about 5 character times This means the timeout varies with the serial transmission speed The Remote Flow Control panel signals the NetCom to perform the handshake on its own This is necessary because the network delay of some milliseconds is to long for reliable operation in many situations January 2012 NetCom Lite User Manual 40 4 Windows Virtual COM Driver Enable The configuration shown here is active when the pre defined performance levels are used When using the Advanced op tion Remote Flow Control is completely disabled Enable as required While it is best practice to configure as figure 35 you can disable certain events here CTS DSR Tx XON XOFF these control the output of data to the serial port RTS DTR Rx XON XOFF used to stop transmission from the connected de vice An application has the option to use any combination of these methods at the same time The command to use them is transferred to the NetCom For example if the port
65. e above this is port 8161 Since there is no configured ViServ for Logging ignore this field Click the button Verify to have the NetCom Manager contact the Router This is a directed request so there is no problem with broadcasts The Router will transfer the request to UDP Port 161 on the NetCom which is the port for SNMP The NetCom will answer the request and send it out to your computer The NAT function in the Router will replace the source IP of the data by its own public value so the NetCom Manager will see the answer come from the Router The NetCom Manager is satisfied with this data January 2012 NetCom Lite User Manual 53 5 Configure with NetCom Manager Some ISP will block the SNMP protocol which typically means they do not transport data for 161 udp to their customers this is the first reason why port 8161 was used in the example This answer brings every required information about the NetCom including its internal IP Address Select the panel of NetCom Manager Server Settings to verify the information but do not make any changes here Changing the configuration may disconnect the NetCom from the protected LAN 5 7 4 Serial Ports through SOHO Firewall Now the NetCom is available in the NetCom Manager but still the serial ports are not usable The information of the TCP ports for the ViServ related to the serial port is still missing In the NetCom Manager Server Settings select the NetCom Manager Ports Panel In this
66. e button Verify Since now the IP Address of the NetCom is known the NetCom Manager sends a request directly to this target instead of a broadcast This directed SNMP request is transported even by Routers The NetCom sends the normal reply giving all required information to the NetCom Manager Now it is possible to configure all options as usual Also the drivers for virtual serial ports are installable now Please note the drivers require to have the IP Address They can not operate using a DNS name because the driver can not perform a DNS name resolution If your NetCom is located on a dynamic IP Address e g on a Dial Up connection with 24 hours disconnection you need to reconfigure the driver installation when the IP Address has changed There is a NetCom Helper Service5 8 for assistance 5 7 Firewall Traversal Configuration There are more difficult situations with a Firewall between the NetCom and the NetCom Man ager Many Firewalls protect the internal LAN by using the feature of NAT Network Address Translation 11 In this situation the IP Address of the internal device is not visible on the In ternet Only the Firewall can be contacted via its public IP Address The NetCom Manager and the driver software for the virtual serial ports can handle such setups But this requires certain configurations 5 7 1 SOHO Firewall example The most easy situation for such a setup is by using a very simple SOHO Router as the Fire wall Th
67. e delivery of the data is guaranteed TKIP Temporal Key Integrity Protocol An encryption scheme for Wireless LAN It was developed from the WEP The key used for encryption is changed while data is trans mitted An attacker will not get enough data with the same key to break the code UDP User datagram protocol Similar to TCP the data is sent in IP frames But in opposite there is no connection or acknowledge by the recipient The transmission is faster for small data but data can get lost Software using UDP must handle the related problems UPnP Universal Plug and Play Devices announce their presence on the network and return their capabilities on the network Depending on the type of device certain configuration is done specific functions become available Specialized software can detect those devices and offer their services without manual configuration VPN Virtual Private Network A public network is used to transport data for a limited set of sta tions Drivers on these stations generate virtual network cables be tween the stations In many installations the communication through the public network is encrypted to avoid tampering of the lines WEP Wired Equivalent Privacy An encryption scheme used with early implementations of WLAN The idea was to make it as difficult to read other persons data as it was with cable communications Due to weak definitions in WEP nowadays it may cost an attacker less than a minute to get
68. eR a a me a 23 239 Power Supply ieena a oi ke A OR A eG i a oi oah Y ew os 24 01 Roynd Power Jaek osor e poeto e e ee a E CA ETER 24 302 Terminal Block Power 5 24 46 e ee E 24 Toe AC Power PIM cu eon ee ee Be ae ek a ek a 24 3 6 4 Power over Ethernet 20 0 0 00 ee eee eee ns 25 4 Windows Virtual COM Driver 26 4 1 Installation Procedure 1 2 e 26 4 1 1 Stach the Installation Wizard oz us es Be ee ee 26 4 1 2 Find and Configure NetCom Devices 29 4 1 2 1 Configure IP Parameters 29 4 1 2 2 Configure Firewall 31 4 La Install Drivers so 4 445 Se e SRO a Se 31 4 2 Verify the Installation 2000000020004 33 4 3 Update the Drivers and Tools 0 0 0 eee eens 34 4 4 Configuration of the Virtual COM Driver 34 4 4 1 Configure the Serial Ports 35 44 2 Pertormance Issues sa doara 20 36 4 4 3 Network amp Misc Properties o o e e 38 4 4 4 Remote Settings Properties o o 40 4 4 5 Installation of NetCom Servers 42 4 4 5 1 Changing the Installation 43 January 2012 NetCom Lite User Manual 3 Contents 4 5 Uninstall the Drivers and Tools o 020000 eee eae 44 5 Configure with NetCom Manager 46 5 1 Starting NetCom Manager 47 5 2 NetCom Server Settings Info o e o 48 5 0 NetCom Server Set
69. ed data as a UDP Frame If the reception of serial data is interrupted for this time in milliseconds the data sampled so far is sent to the destination A value of zero causes all data to be sent imme diately use 1 to disable the function of timeout trigger UDP Trigger defines a sequence of characters As soon as this sequence is detected in the received data all data up to the end of this Trigger is sent to the destination In most situations such a Trigger includes control or other special characters Enter them numeric as xHH where HH is the hexadecadic code of the character or as OOO where OOO is the octal code of the character The backslash itself must be doubled as 6 2 2 2 7 IP Modem The serial port of a NetCom may mimic emulate a serial modem There is the separate section 7 defining this functionality Here are the basic network parameters only Mode IP Modem v TCP Port Data 2001 Destination IP Modem Config IP Modem TCP Port Data 2001 Destination IP Modem Config Figure 74 IP Modem A serial modem accepts connections from a phone line while an IP Modem accepts connections from the network in this case via TCP IP The TCP port for this is defined as the TCP Port Data similar to TCP Raw Server mode This is the only parameter required to set here All other values are normally defined by AT commands via the serial port However for short Destination
70. ee 60 DiS Serial omnes yeah sc es ao deie ok E a Ra ee ai a ae 62 6 2 NetCom Configuration Options aesa aas day a aa paaka a 62 621 Berryer CONSUL s 2 i pe ea e ep a we e e G 62 ied Serner IME e erea Ra aiia Boy eee ee ee ed ee ee 63 6 2 1 2 Server Parameter eso oscila ee ee we e a 64 6 2 1 3 Authentication 2 2 2 eiio a e 65 6214 Dated Time 204 244 Sea ee ae ee ee 65 BELLO Save sG oko s mack eR ER a el ee ee 66 62 2 Serial Port Configuration s o s ssla a ea AR eR Re e Eea 67 6221 Bertal Selllnes ox coria EER ES KS 68 6232 Transier Seinge lt lt us ke he ea Mee ea eS 70 62221 Daver Mod ia a kk eeg eee RE ee 70 6 22 2 2 TCP Raw Server ou os ck be ee ee 71 b DCP Raw Client lt a ociera ei hee a Gea HES 72 6 2 2 2 4 Null Modem Tunnel sse sa s sowie ss srera syes 73 6 2 2 2 5 TCP Advanced Settings ooo 75 6 2 2 2 6 UDP Data Transfer 2 6 pe eee ee ddaa 77 Ear IP Mademt 2 04 4 44 44 sot he eo Ek te 78 622 28 Print Server Function es a as a s lt 0 m4 ns 79 January 2012 NetCom Lite User Manual 4 Contents GAZA DIES us ale oe AO ca we eh ee ee E 80 62 6 Neti Toole lt lt eG Ack bale oA bh ee A go ae Gla oa a 80 A oe eran cee gh ce 2 ee ee ae et Oe ee ee ek ee Oe e 81 Doha DARES 3 ae e koe a Ro A we Se ee a ee ee ee ee ia 81 02 30 NEISTAL sus ke A ae a ee a 82 aad Pirtinwere ocres Rea a Rae Ee Ba ea we ee 85 6 2 3 5 Save and Load Configuration
71. efine a multiplier The baudrate requested by the application is multiplied with this factor The result is sent to the NetCom to configure the serial port E g the application may be limited to 38 400 bps but there is a modem capable of 230 400 bps on the serial port Set Over speed to a value of 6 000 and configure the application to use 38 400 bps Open If Absent The NetCom may be used from a computer with a Dial Up connection When this option is used the driver will delay the connection to NetComs serial port Even when an appli cation opens the port and configures the parameters no com mand is sent The connection is established when data is sent to the NetCom or when status information is requested Keep Alive This option will periodically send control information to the NetCom to check if the connection is still operational As a second effect a Dial Up connection will not automatically close Passive Modem This option controls how often the driver retrieves Modem status information from the NetCom If activated the driver never asks for the modem status Instead the NetCom informs the driver of any changes Ifan application frequently requests the Modem status it gets the last value received On slow networks like the Internet this option is recommended If inactive the driver software retrieves the Modem status from the NetCom serial port each time the application requests it but with a maximum frequency of 10 per seco
72. elnet menus Firmware version 2 2 introduces the new function as Print Server The TCP Port defined by RFC1194 mostly referred to as Line Printer Daemon is 515 under certain circumstances you may change the PrintServerPort More about Print Server function at the configuration of the serial ports 6 2 2 2 8 on page 79 KeepAlive is an intrinsic function of the TCP IP protocol If used it causes network traffic but problems are detected earlier In a LAN this is usually not a problem However if used via Dial Up connections this may cause problems If this functions is On you must define an KeepAliveInterval in seconds NetCom has a better chance to react on network problems or failed hosts Even dropping an old connection may be useful in certain environments 6 2 1 3 Authentication Web menu SERVER CONFIGURATION section Authentication Telnet ServerConfig option Authentication Authentication Password Retype Password ServerConfig Security Settings Parameter P d t bn Date amp Time Info Figure 61 Access Authentification The Security Settings define a Password to restrict access to the configuration of NetCom The password is not shown while typing it To protect against accidental mistyping you must type the Password twice 6 2 1 4 Date amp Time Web menu SERVER CONFIGURATION section Date and Time Settings Telnet ServerCon
73. er Ethernet Serial connector DB9 male like PC Serial ports 111 1 x RS 232 113 1 x RS 232 422 485 configured by DIP switch Serial Speed 7 bps up to 460 8 kbps Power Requirement DC 9V to 30V 200 mAQ12V Power over Ethernet as of IEEE 802 3af up to 3 W Power Connector Round power jack 3 6 1 Dimensions 73x115x27 mm WxDxH 10112127 mm with connectors Weight 250 g Table 2 Characteristics of NetCom 111 113 111 PoE 113 PoE Note 1 Power over Ethernet is available in NetCom 111 PoE 113 PoE Figure 1 NetCom 111 Top and Front Side Here showing NetCom 111 the NetCom 113 is very similar with the serial connector and the configuration switches The rear side holds the power connector Reset hole and the Ethernet RJ45 On NetCom 111 PoE and NetCom 113 PoE the option of Power over Ethernet of course has no special connector January 2012 NetCom Lite User Manual 13 2 Introduction 2 3 2 2 NetCom 211 211 PoE Two ports NetCom 211 PoE with Power over Ethernet Serial connector RJ45 Adapter cable to DB9 male like PC Serial ports 2 x RS 232 Serial signals TxD RxD RTS CTS DTR DSR DCD GND Serial Speed 7 bps up to 460 8 kbps Power Requirement DC 9V to 30V 200 mAQ12V Power over Ethernet as of IEEE 802 3af up to 3 W Power Connector Round power jack 3 6 1 Dimensions 73x115x27 mm WxDxH 10112127 mm with connectors Weight 200 g Table 3 Characteristics of NetCom 211 211 PoE Note 1 Power
74. er Manual 110 11 Glossary of Terms LINKLOCAL Address range for private networks This range 169 254 0 0 169 254 255 255 Netmask of 255 255 0 0 is reserved for private networks i e not connected to the Internet Designed for small number of stations using some automatic config uration scheme Used with APIPA NAT Network Address Translation A technique to have a private LAN share one few public IP Address es With NAT the transport information in IP frames is replaced by the public data of the NAT Router Netmask Groups stations to a Net The AND operation between the IP Address and the Mask is an im portant value When to stations have the same result and the same mask they are in the same net Which means they can communi cate direct without transmitting to a Router PAT Port Address Translation A technique to share a public IP Address by many internal servers on private addresses The target address and port is replaced with values stored in an internal table Mostly used together with NAT Router Transmits data over the Internet The backbone devices of the Internet Routers connect two networks together On one side they receive data frames containing IP data They extract these data and send them on another side there also stored in data frames of the second network Typically they connect more than two networks The basic task is to decide which route the IP data must take now RS 232 V 24 common serial
75. eration Modes keys in your Telnet The display is refreshed in an interval of some seconds Use lt Esc gt key to return to the menu January 2012 NetCom Lite User Manual 84 6 Configure the Operation Modes 6 2 3 4 Firmware Web menu Tools section FirmwareUpdate Telnet Tools option Firmware To upload a new version of the firmware put the name of the file in the field Your web browser will allow to search for the file Click on the Update button and your browser will upload the file to the NetCom FirmwareUpdate Warning All connections get closed and the server reboots after updating B_WLAN_2_4_1 bin b64 Browse Firmware Update Update Port 2400 Start Update Ping Statistic Netstat Wireless Logging Figure 82 Firmware Upload Via Telnet the option to upgrade the Firmware of NetCom is different The upload of the data is either done via the current channel i e the serial or Telnet connection Or independently via a separate TCP IP connection The Update Port parameter defines this second connection the NetCom waits for a TCP connection on this port The Firmware is sent coded in base64 a special text format via very simple programs like a second Telnet session or similar tools Terminal software by serial configuration may just use the Send Textfile function While uploading the file it is checked by Net
76. erver mode with respect to Max Client When the Control Port is opened first the NetCom expects a second connection on the Data port to operate in Driver Mode for one client only The NetCom can also operate as a network client as seen in TCP Raw Client mode This is en abled by setting Client to On As a client it requires the same parameter as for the specialized modes When the TCP Port Control is defined not zero the NetCom will operate as a client for Driver Mode as in Null Modem Tunnel The destination is the target address or DNS name January 2012 NetCom Lite User Manual 76 6 Configure the Operation Modes Otherwise the NetCom operates in TCP Raw Client mode when it establishes a connection The syntax for multiple destinations applies then The remaining parameters are explained in the client mode descriptions The TCP Advanced Settings allow for flexible usage of the NetCom when Server and Client modes are On at the same time If no connection is active with the NetCom it accepts incoming connections i e it operates as server as long as the connections are held Without a connection a Trigger event defined in Connect cause the NetCom to establish a connection to the defined target So the NetCom is a client at that time 6 2 2 2 6 UDP Data Transfer UDP is an Internet Protocol which does not define a connection it sends data in single packets instead of a stream There is no extra return data to signal a successfu
77. established on the TCP level Directly afterward both IP Modems negotiate to ensure they are a real NetCom IP Modem and are free for connection If successful both issue a CONNECT response to the serial connected devices This is convenient for the customer to understand The CONNECT may report some parameters e g the minimum serial speed used by both Modems These extra parameters are not implemented so far The other mode is named as Modem to Host The destination is any software which opens a TCP port for Listen mode It may be a second NetCom configured for TCP Raw Server Mode It may also be the customers application running on a certain computer This mode offers less features 7 4 Hayes Commands The IP Modem operates with a command set similar to those in real Modems All of the commands start with the character sequence AT January 2012 NetCom Lite User Manual 91 7 IP Modem Function 7 4 1 AT command set The following table lists many standard commands in alphabetical order The AT is omitted for brevity The discussion of the functions is below the tables in section 7 5 below 7 4 1 1 Standard AT Commands These commands are based on the old Hayes Modem AT Hayes Standard IP Modem Function A Answer Call Accept a connection Bn ITU T modulation Define some modem operation modes Dnnn Dial connection basically phone Connect to the target system
78. etCom Lite User Manual 71 6 Configure the Operation Modes the operating system The parameters of the serial port are defined on the NetCom as given above 3 1 Mode TCP Raw Server TCP Port Data 2001 Max Clients fi Password Retype Password Raw Server TCP Port Control 2000 Max Clients 1 Password ek ok Figure 69 TCP Raw Server parameters Compared to the Driver Mode only the data connection is defined by the TCP Port Data The Max Clients parameter allows for more than one connection to the NetCom at a time If the number is raised it is the responsibility of the customer to ensure correct operation There is no special Keep Alive option the global parameters from section 6 2 1 2 apply Firmware version 2 2 added the option of additional protection by Password When a password is configured the NetCom sends the question Password to the client The user his application must first send the password followed by a lt CR gt character The password is not echoed to allow usage with Telnet on a Monitor 6 2 2 2 3 TCP Raw Client Also as Raw Client the NetCom requires very few parameters The client computer operates via the TCP IP stack as in 6 2 2 2 2 but now this computers waits for incoming connections opened by the NetCom Using this mode several NetCom may connect to the same server software installation The parameters of the serial port are defined on the NetCom
79. f the program to see how to allow access If some special function is not operative check for the proper version of the Firmware In case of doubt install the latest version available http www vscom de In rare cases or on special hardware the driver for Windows may have a problem Please load and install the latest version http www vscom de and try again It is necessary to uninstall the previous version Transmissions on IP networks impose some extra delay in transmit and receive times These can add to between 5 and 10 milliseconds depending on configurations Such delays may cause applications to complain about non functional hardware in fact it is a proto col delay problem Wireless Connections may fail if the Access Point does not broad cast the SSID The NetCom Servers need the broadcast to get the parameters from the Access Point Hiding the SSID is not a security feature anyway Many other problems occur because of a failed serial connection caused by wrong cabling Here are some frequent causes a The serial cable in RS 232 mode may simply be to long This mostly happens with higher transmission rates b In RS 422 and RS 485 it is mandatory to also connect the GND signal of all devices It is a very frequent error not to do this The information is transferred and defined by the positive or negative difference of the Data and Data lines However the specification requires a common voltage range between the
80. fic control to the user NetCom can generate Events on RTS DTR or as XON XOFF when the serial receive buffer is filled emptied These will inform the connected device to stop or continue the transmission The NetCom will also respect the state of CTS DSR or XON XOFF when sending data to the connected serial device The RxTriggerLevel defines when NetCom sends the received data to the host If the amount of data is this high the data is sent It does not matter if there is still data coming on the serial line If less data is received the NetCom waits some time for further data before sending the buffer When this parameter is reduced to 1 obviously all data is sent right when it has been received The TxTriggerLevel operates similar for the transmission If the defined amount is received from the network the NetCom does not accept more data to transmit These options reduce latency times by increasing the network traffic January 2012 NetCom Lite User Manual 69 6 Configure the Operation Modes 6 2 2 2 Transfer Settings Web menu SERIAL CONFIGURATION column Port N Transfer Settings Telnet SerialPorts select Port N Transfer Settings The Transfer Settings allow different operation modes They are selected by the basic Mode set ting Depending on the current mode only some of the many parameters are useful The web configuration hides those parameters without function Mode Driver Mo
81. fig option Date amp Time It may be helpful to have a correct time setting in the NetCom You may manually enter the time here Please note there is no real time clock with a battery backup in the NetCom When the NetCom is restarted the time is lost Retype the value of Date Time for manual setting The format is DD MM YYYY HH MM SS UTC TZ Time Zone January 2012 NetCom Lite User Manual 65 6 Configure the Operation Modes Date and Time Settings Date amp Time 04 01 1970 02 05 32 UTC 0 Simple Network Time Protocol State Off v Mode DHCP y Interval heno Server ServerConfig Date and Time Settings Parameter 01 01 1970 00 17 33 UTC 0 Authentification Simple Network Time Protocol Info l State Off Mode DHCP Interval 1800 Server Ex Figure 62 Date amp Time Retrieval Options It is possible to configure NetCom for automatic time retrieval via SNTP The State field has three possible settings e Off disables automatic time retrieval e Startup NetCom gets the time at reset or power on e Interval NetCom repeats to retrieve time The parameter Mode is used to find the definition of the Time Server It may be defined direct or by DHCP The Interval in seconds instructs the NetCom to regularly check for an update of the internal time settings The Time Server may be given b
82. find the new program group VScom NetCom The installed pro grams are the NetCom Manager the Driver Re pair program and an option for uninstallation This group is not installed on Windows NT fmm VScom NetCom 4 E NetCom Manager x Repair BE Uninstall Figure 29 VScom drivers in the Start Menu January 2012 NetCom Lite User Manual 33 4 Windows Virtual COM Driver ERA os File Action view Help MEFS el ara 1 Mice and other pointing devices 3 Multi port serial adapters Sy NetCom_Demo_4 94 E9 Network adapters R 4 Ports COM amp LPT Y Communications Port COM1 4 Communications Port COM2 4 NetCom COM Port COM3 4 NetCom COM Port COM4 4 NetCom COM Port COMS 4 NetCom COM Port COME y Printer Port LPT1 Processors zi 1 a SCSI and DATO cantrollare Figure 30 NetCom in Device Manager In the Device Manager the serial ports are listed in the usual section Ports Additionally there is the device class Multi port serial adapters All installed NetCom Devices are listed herein The available options are described later On Windows NT there is no Device Manager You ll find the serial ports listed in the Control panel in the Ports applet To configure the NetCom Figure 31 NetCom and special port options there is a new applet named NetCom Manager Manager NT In drivers up to versio
83. finished the Power LED blinks once Do not power off or reset the NetCom before this blink is seen The Ethernet cable should not be connected because the NetCom uses DHCP in factory config uration Without an Ethernet cable it does not attempt to find a DHCP server which makes a faster reboot process January 2012 NetCom Lite User Manual 89 7 IP Modem Function 7 IP Modem Function The Firmware offers the function of IP Modem Used in this mode the serial port of the NetCom emulates a standard serial modem Basically this means the NetCom will a answer to AT commands on the serial port b establish a connection to a destination c inform the connected serial device of the connection d accept a TCP connection and inform the serial device of that event For connections the NetCom will use a TCP connection This differs from a normal telephone line so there will be some modifications in the behavior The target is an IP Address not a phone number Also for hardware reasons the automatic baudrate detection used in today serial Modems is not available However this is not a problem at all the IP Modem can be installed in Windows as a Standard 33600bps Modem There is an INF file for ease of installation 7 1 Some possible Scenarios 1 The customer has a remote management installation operating via telephone line These lines may be in house or through public phone systems to other destinations The customer wants to reduce
84. gram in the NetCom Manager Server Parameter Warning for changes like network settings the server must be rebooted Server Name NetCom_Demo_494 MAC Address 00 04 D9 80 0F FO DHCP vabled y N IP Address 192 168 1 65 Netmask 255 255 255 0 Broadcast 192 168 1 255 Gateway 192 168 1 1 DNS 192 168 1 3 Domain visionsystems de ConfigPort 23 PrintServerPort 51 5 KeepAlive or y KeepAlivelnterval o Server Parameter NetCom_0051100021 Authentification MAC Address 00 04 D9 80 00 14 Date amp Time DHCP Enabled Info IP Address 192 168 1 65 e eee Netmask 255 255 255 0 Broadcast 192 168 1 255 Gateway 192 168 1 1 DNS 192 168 1 3 Domain visionsystems de ConfigPort 23 PrintServerPort 515 KeepAlive Off KeepAliveInterval 0 Figure 60 Server Parameter January 2012 NetCom Lite User Manual 64 6 Configure the Operation Modes Manual changes of IP parameters are only available with DHCP set as Disabled When DHCP is not used enter IP Address and Netmask as well as the Broadcast address Gateway is required if there are Routers in the network DNS is used to access other stations by name The ConfigPort is used to access the NetCom for administration via Telnet It is suggested to use the standard value for Telnet TCP port number 23 However it may be changed for different purposes This does not change the function of the T
85. he Virtual Servers have to be configured anyway The second reason is the security Using the DMZ option the Firewall in the Router becomes transparent All data from outside is transferred to the LAN including all malicious data In general this is not an especially smart idea 5 8 NetCom Helper Service In certain situations users of VScom NetCom Serial Device Servers come to the problem of dynamic IP Addresses This typically happens when the NetCom is used over Internet using an ADSL or cable Modem connection At certain times e g every 24 hours the NetCom is disconnected from the Internet When it is re connected it will receive a new IP Address which is different than before The NetCom Driver for Windows installs the serial ports on the NetCom Servers as virtual local Com Ports in the system They are seen in the Device Manager and standard applications like Hyper Terminal have a seamless access to the connected serial devices To perform this task the driver uses the IP Address of the NetCom Server On the established TCP connections the driver exchanges serial data commands and status information When the IP Address of the NetCom has changed the driver attempts to contact the old IP Address which will fail So the virtual Com Port is not usable any longer Up to driver version 1 5 5 users have to use the NetCom Manager to reconfigure the driver Since the driver version 1 5 6 there are more options The software install
86. hed until DSR becomes inactive At that moment the connections are dropped 6 2 2 2 4 Null Modem Tunnel This operation mode is intended to build a long virtual Null Modem Cable between the serial ports of two NetCom This mode is symmetric both NetCom operate as server and as client at the same time The parameters of the serial port are defined on the NetCom as given above 3 1 January 2012 NetCom Lite User Manual 73 6 Configure the Operation Modes Mode Null Modem Tunnel gt Server TCP Port Control 2000 TCP Port Data 2001 Client Destination DO TCP Port Control 2000 TCP Port Data 2001 Connect Triggered y ShortHoldTime fP KeepAliveMode On Connect y KeepAlivelnterval o Null Modem Tunnel Server TCP Port Control 2000 TCP Port Data 2001 Client Destination TCP Port Control 2000 TCP Port Data 2001 Connect Triggered ShortHoldTime o KeepAliveMode On Connect KeepAliveInterval to Figure 71 Null Modem Tunnel This is a mixed mode requiring parameters for server function and for the client part The NetCom operates as a server while accepting connections in Driver Mode 6 2 2 2 1 If there is no current connection the NetCom may establish a connection as a client This is also a special connection using the Driver Mode protocol NetCom will not only transmit serial data in both directions it will also pass information about the
87. hen the serial ports are installed by the Virtual Com driver software any application may use them In the Device Manager they appear as NetComCOM Port figure 30 Without special tests a program does not see a difference between Coml and the virtual Com7 For example the Hy per Terminal program has no problem to communicate through these Virtual Com And this situation is common amongst most programs 4 4 1 Configure the Serial Ports A typical application selects a serial port and opens it After that it performs the standard configuration of bits per character parity settings and number of stop bits Also the flow control handshaking is defined by the application Windows sends these requests to the port driver and this driver sends the requests to the serial port on the NetCom NetCom COM Port COM3 Properties 2x General Local Settings Performance Driver Details l j NetCom COM Port COM3 V tom Bits Per Second Data Bits Stop Bits f gt Flow Control None gt Figure 32 NetCom COM Port Serial Settings The same parameters may be pre configured in the Device Manager This is done via the Properties of the NetComCOMPort In the Local Settings tab these standard parameters are defined Since most programs configure these parameters by themselves the values are very rarely used A typical situation is a serial printer attached to this virtual port January 2012 NetCom Lite User Manual 3
88. ight otherwise it will remain dark January 2012 NetCom Lite User Manual 23 3 Hardware Description Red LED Yellow LED Green LED Status Off E Device off no power On Off Off No connection On On Off 10Mbit connection established On Blink Off 10Mbit data transfer traffic On On On 100Mbit connection established On Blink On 100Mbit data transfer traffic Table 13 LED Function 3 6 Power Supply The NetCom Lite device is powered by a single 9 30V power supply It requires 200 mA up to 1500 mA of current depending on the device type and voltage supplied A suitable power supply adapter is part of the packaging Connect the cable to the power jack at the rear side of NetCom Lite and put the adapter into the socket For the 19 rackmount devices of course just plug the power cord into the socket The Power LED on NetCom red will light You can connect a power supply of your choice providing the technical requirements are met 3 6 1 Round Power Jack The round power jack requires positive voltage on the center pin The outer contact of the connector is negative which is connected to GND and the case Figure 14 Round Power Jack 3 6 2 Terminal Block Power The Terminal Block power connector receives positive volt age on the right V pin The center V pin connector is negative which is connected to GND and the case GND is the same as Field GND FG so the standa
89. images above function as a link In many menus you ll see a blue question mark This is a symbol for help When clicked a short explanation pops up informing about the function of this parameter Some other settings require a reboot to save and activate them Whenever this situation occurs the NetCom requests a REBOOT Microsoft Internet Explorer x Reboot for changes to take affect Reboot now Figure 55 Request to Reboot in Web Browser It is done like this here you may reboot then or do that later when the configuration is finished 6 1 2 Telnet Configuration Start your Telnet software with the IP Address of the NetCom as the parameter In most config urations you use the standard port for Telnet so you omit this parameter As an example this is the command line in Windows which you may enter in Start gt Run or in a console DOS box C Windows System32 gt Telnet 192 168 254 254 23 January 2012 NetCom Lite User Manual 60 6 Configure the Operation Modes For completeness the port is shown in this command Enter the configured parameter when the port is different If the NetCom is password protected you need to enter the password right now Please enter your password gy Figure 56 Password Request in Telnet When connected to NetCom you must define the type of terminal used Most Telnet software includes an emulation of a VT100 terminal so choose this option Also choose this option for an
90. in the driver and the DNS name is also saved there January 2012 NetCom Lite User Manual 56 5 Configure with NetCom Manager In a local company network this may not be an especially useful option But when the NetCom Server is used via the Internet this is the standard situation for most applications DNS is used when the NetCom is not a part of the local network broadcast domain As a conse quence it is not detectable via the broadcast method described above Provided there is a reliable DNS service available now it is more easy to install a NetCom in the system Please read about the Manual Detection Installation of a NetCom in section 5 6 The NetCom Helper Service regularly checks if the NetCom Server is still available on the known IP Address If the attempt for contact fails the Helper Service uses DNS to find the new IP Address of the NetCom Server This new IP Address is used for future operation 5 8 2 3 DNS based Firewall Configuration The NetCom Servers do not manage an Internet Connection on their own But it is possible to have a NetCom Server on a public IP Address when the Internet Connection is managed by Routers More often the NetCom Server connects to a private LAN and has a private IP Address The Internet Connection is managed by a Router which also acts as a Firewall This Router uses NAT PAT to make the NetCom Server available via Internet Please read about this in section 5 7 When the Firewall Configuratio
91. ion Console in Telnet 61 Bo Server Mormann acts or a A A AR ew 63 00 Server Parameter 22 424 5 242464 adn dd AS 64 January 2012 NetCom Lite User Manual 7 List of Tables 61 62 63 64 65 66 67 68 69 70 71 72 73 74 79 76 TT 78 T9 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 Access Authentification e e 65 Date amp Time Retrieval Options a aoao a 0 0 00 e 66 Port Page Selection in Web Browser caa o osa eee eb ee eR RAS 67 Port Selection in Telnet usara aig we oe ee ek ee Be ee 67 Serial Settings Las ae ae he eee ee ai 68 Advanced Flow Control ccoo cesen Sa ee a ee a we RS 69 Serial Port Mode Selection s ve sss 2 be aona aa ra a a eh ee ee 70 Driver Mode parameters so ssa saca saaana moau oi daa a Ra a a ai 71 TCP Raw Server parameters o 84 doaa Re ee ke 72 TCP Raw Client parameters iioc ies rocca snada tame oies ap kaas 73 Nul Modem Tunnel ness ae p oa aag p aaae Ep eR ee ee a o a a 74 TOP Advanced SOLES ox co sompo ee Ai a a e 76 UDP Data Trailer oo edes gopa a o ee eR a Oe e eee 77 TPM o o a ee eK ARS ASR ERA RS OH eS EE SRS GS HAS 78 Pring Server Configuratio ce eea dea ee ee ee ee 79 Ping and Response in Web Browser 2 02 00 eee ee eee eee 81 Ping and Response in Telnet 0 000 pee ee ee ees 81 Statistics Port Selection a 82 Port SIS caca aoe eS Boe aS BH eee A Oe Fah ee ee A 82 Start Netstal e 6 ce g e aow p a eR ee a ee
92. is configuration will show the principle of the technical details Those principles can be transferred very easy to the configuration of more complicated installations On the SOHO Router there is only one public IP Address on the external side and typically 254 internal private IP Addresses for the LAN side These internal addresses may be assigned by DHCP or static Such Routers offer a feature typically named DMZ which in fact is only a single exposed host It is recommended not to use the DMZ for several reasons some of them are security related Especially it is recommended not to configure a NetCom as the DMZ host January 2012 NetCom Lite User Manual 52 5 Configure with NetCom Manager 5 7 2 SOHO Virtual Servers The Router also offers Virtual Servers here named ViServ for short which is the option required for NetCom installation These ViServ operate by a technique called PAT Port Address Trans lation 11 Certain data addressed to the public IP Address of the Router are forwarded to the internal private address of the NetCom This way the NetCom can be contacted via the public IP Address of the Router First you need to configure the Router for some ViServs As the absolute minimum there is one ViServ for the NetCom device itself and another two ViServs for each serial port of the NetCom Those ViServs are to be configured for TCP or UDP transmissions Please read in the manual of your Router how to do that You need
93. ith an empty Destination parameter Or consider to have a connection on demand i e use the Triggered option 6 2 2 2 5 TCP Advanced Settings All of the above operation modes are special configurations for options In some situations none of the pre defined modes fit the customers needs When this is the case the TCP Advanced Settings offer the configuration of any Transfer parameter Unusual combinations of Modes are possible with this also standard modes with unusual parameters January 2012 NetCom Lite User Manual 75 6 Configure the Operation Modes Mode TCP Advanced Settings y Server or y TCP Port Control 0 TCP Port Data 2001 Max Clients h Client On y Destination PO TCP Port Control 0 TCP Port Data fo Connect Triggered y ShortHoldTime 0 KeepAliveMode On Connect y KeepAlivelnterval fo Transfer Settings Port Nr 1 TCP Advanced Settings Server On TCP Port Control 2000 TCP Port Data 2001 Max Clients 1 Client Off Destination TCP Port Control 2000 TCP Port Data 2001 Connect Triggered ShortHoldTime o KeepAliveMode On Connect KeepAlivelnterval O Figure 72 TCP Advanced Settings The NetCom usually acts as a network server This means it accepts incoming connections The most used Driver Mode is one example The NetCom detects which mode to use When the Data Port is opened first then the NetCom operates in TCP Raw S
94. l transmission As a side effect data may be sent and received faster than with TCP IP The UDP mode is available as a function since the version 1 4 of the NetCom firmware Mode UDP Mode gt UDP Port Local 2002 Destination FO UDP Port Dest 2002 UDP MaxPacketSize 1458 UDP Timeout oO UDP Trigger fo UDP Mode UDP Port Local 2002 Destination UDP Port Dest 2002 UDP MaxPacketSize 1458 UDP Timeout o UDP Trigger Figure 73 UDP Data Transfer This protocol requires a UDP Port local for listening to incoming data Other stations on the network send their data to this port The Destination host is configured by IP Address or name plus the target UDP Port Dest Please compare with the parameters for TCP Raw Server and Client Modes The parameters to configure the UDP Mode are similar to a mixture of these modes A UDP Broadcast is sent if the destination address is the broadcast Address see section 6 2 1 2 above Since there is no connection data can not be sent in a stream UDP uses packages There are several ways to define the content for a package January 2012 NetCom Lite User Manual 77 6 Configure the Operation Modes UDP MaxPacketSize is a limit for the size of UDP packets When the amount of data received on the serial port reaches this limit the UDP Frame is assembled and sent to the destination UDP Timeout defines when the NetCom sends the receiv
95. lay when configuring the NetCom Usually the web interface is shown on top and the terminal interface Telnet serial port is shown below a horizontal line divides the two On few occasions the two screen shots are displayed side by side with the web interface to the left and the terminal interface to the right then divided by a vertical bar 6 2 1 Server Configuration In your web browser click on the Icon of SERVER CONFIGURATION the browser opens the basic server information the server parameters related to the IP configuration the parameters for Wireless communication the section for encrypted communication Password settings and finally the configuration for date and time In Telnet the ServerConfig offers the IP parameters Wireless and encrypted configuration Pass word settings configuration for date and time as well as basic server information Download PuTTY from putty org January 2012 NetCom Lite User Manual 62 6 Configure the Operation Modes 6 2 1 1 Server Info Web menu SERVER CONFIGURATION section Server Info Telnet ServerConfig option Info Server Info Server Type 423 WLAN Software Version 2 4 1 Hardware Version 1 0 Serial Nr 0210100424 UpTime 3 day s 02 05 32 Contact lt unset gt Location lt unset gt ServerConfig Server Info Date amp Time Uptime 3 day s 02 10 17 lt unset gt 1 Location lt unset gt
96. lected by random and checked if already used The NetCom Devices do not support this method However it is possible to assign a static IP Address to the NetCom which matches the network configuration Try to find an unused address in your network starting at 169 254 0 1 Check by PING and ARP if the address is used If not assign it to the NetCom This is only a workaround The better solution is to install or configure a simple DHCP server program Typical SOHO Internet Routers of today already have such a server Or you may change your network to static configuration 9 1 4 Other Configuration If the configuration of your computer differs from these examples strong reasons are likely Ask your network administrator for proper parameters in this situation January 2012 NetCom Lite User Manual 106 10 Troubleshooting Guide 10 Troubleshooting Guide The most common problems when using NetCom are caused by a failure in the configuration of network parameters This is a list of some symptoms and tests to check them 1 First examine the network configuration of your computer Open a console window MSDOS command prompt and use the command IPCONFIG ALL to retrieve the information Among other infor mation some data is displayed as this Ethernet adapter Local Area Connection Description lt Your LAN card gt Dhcp Enabled Yes Autoconfiguration Enabled Yes IP Address
97. log amp Debuglog Parameters The Syslog function may of course be Off or On In the On state the NetCom sends all the log information to a computer defined by Destination A special software often called Syslog Daemon January 2012 NetCom Lite User Manual 86 6 Configure the Operation Modes has to receive these data The Option of Facility is a criteria for the Daemon how this will organize the data received from the NetCom In contrast for Debuglog the NetCom behaves as the server When this option is On the NetCom waits for incoming TCP connections to the configured Debug Port The NetCom sends all logging information via this connection For manual use a software like Telnet is suitable especially if it has the option to save all received data 6 2 3 7 Save Web menu Tools at bottom As usual at the bottom of the web page below all the options there is the button Save This will store the configurations done for Logging 6 2 3 6 6 2 4 Reboot Web menu REBOOT In your web browser click the Icon of REBOOT to restart the NetCom firmware Attention This option will discard all configuration changes unless they have explicitly been saved Naturally it will also disconnect all other clients using serial ports or the Telnet configuration menu 6 2 5 Save amp Exit Menu This section of configuration is only available via the terminal interface i e via Telnet or serial port Modifications in the configuratio
98. lt RTS gt lt DTR gt lt P10 gt lt ESC gt 0 lt P35 gt lt DTR gt lt P50 gt lt RTS gt The delay of 35 msec after the command string lt ESC gt 0 shall ensure all data is completely transmitted to the printer January 2012 NetCom Lite User Manual 100 8 Print Server Operation 8 3 Operation in Windows The Printer Server mode may be used to support serial printers in Windows Operating System This is a short instruction how to install and use it Experience on installing printers in Windows is required for this instruction First the installation of a new printer is given the modification of an existing printer setup is described later 8 3 1 Add a New Printer From Control Panel open the Printers and Faxes windows Select the Add a printer option The usual Add Printer Wizard appears Click the Next button to select the port where the printer is attached to Printer Tasks Local or Network Printer The wizard needs to know which type of printer to set up 3 Add a printer amp Set up fa Select the option that describes the printer you want to use J Automatically detect and install my Plug and Play printer Figure 88 Add a printer CA network printer or a printer attached to another computer a To set up a network printer that is not attached to a print server J use the Local printer option lt Back Cancel Figure 89 Select Printer Port Select the option of Loc
99. mmand mode The ATO activates the transparent data mode 7 5 3 AT A answer call Have the IP Modem answer an incoming call and establish a TCP connection This command is required if Auto Answer is disabled Observe the operation mode defined by ATB 7 5 4 AT B modulation ATB1 This command is used to define the modulation to use on the phone line Since the only modula tion available is IP there is no choice The command is used to change between Modem to Modem and Modem to Host mode January 2012 NetCom Lite User Manual 94 7 IP Modem Function ATBO Modem to Host mode ATB1 Modem to Modem mode which is the default ATB2 Modem to Modem when Touch Tone dialing Modem to Host when Pulse dialing Answer in Modem to Modem ATB3 Modem to Modem when Touch Tone dialing Modem to Host when Pulse dialing Answer in Modem to Host Table 20 IP Modem virtual Modulation 7 5 5 AT E echo ATE1 Disable and enable the echo of the commands received ATEO to disable and ATE1 to enable the echo 7 5 6 AT Q quiet ATQO Configures the IP Modem to remain quiet The Modem will not send any response messages to the serial port 7 5 7 AT V verbose ATV1 Responses as numeric values AT VO or as text strings ATV1 OK 0 CONNECT 1 RING 2 NO CARRIER 3 ERROR 4 CONNECT 1200 5 NO DIALTONE 6 BUSY 7 NO ANSWER 8 Table 21 IP Modem Responses 7 5 8 AT H
100. most cases however it is simply because the station has been switched off for a comparably long time So the DHCP server forgot about the station and provided the IP Address to a different target January 2012 NetCom Lite User Manual 57 5 Configure with NetCom Manager 5 8 3 2 Internal DNS Ifthe company network becomes larger it will also use some Routers For organization the network is grouped in subnets As mentioned above typically the broadcasts are blocked by Routers so the broadcasts only cover a single subnet To contact stations in other subnets the IP Address of the target is required Usually this is provided by a DNS server This server may co operate with a DHCP server A usual cause for a changed IP Address in the NetCom Server is a connection to a different subnet It will have a different IP Address there but the DNS server should know about the new address 5 8 3 3 Internet Some ISP disconnect the customers stations from the Internet in regular inter vals e g every 24 hours If the station is configured for immediate re connect it will get a new IP Address This station can notify a Dynamic DNS service so this will resolve to the new address This is typically combined with a SOHO Firewall Router 5 8 4 Polling Period The last matter to check about is a suitable Polling Period for the NetCom Helper Service The standard value is 3600 seconds i e one hour With this configuration a change in the address is noti
101. n 1 5 6 this was VScom Virtual Com 4 3 Update the Drivers and Tools As suggested by figure 43 the Installation Wizard offers an option to Update the drivers to a new version Windows itself also offers an option to update the drivers of installed devices Although this is a functional option the correct operation of the NetCom drivers depends on a common version for all drivers The secure way to perform such an update is to run the Installation Wizard All driver files are replaced by later versions simultaneously and all configuration data Com number special port configurations is preserved Because several internal configurations of drivers have changed from version 1 5 6 to 1 5 8 the option of Update is not available in this situation The only way of update is to Uninstall the current version and install the new Such a situation will be very rare 4 4 Configuration of the Virtual COM Driver If properly configured the serial ports of the NetCom Devices appear as Virtual Com Ports in your computer The virtual means in the computer is no real hardware related to the serial port January 2012 NetCom Lite User Manual 34 4 Windows Virtual COM Driver however the driver offers the full functionality of a serial port to the system The interface used by the driver is VCOMM which in turn is supported by the Windows APT So Windows does not see a difference to Com1 and also no application should detect the change W
102. n is activated for access to the NetCom it has been possible to enter the DNS name of the NetCom Server in previous versions of the driver Precisely it was the DNS name of the Router This name has been resolved at the time of configuration and has been stored for later use Now the NetCom Helper Service monitors the DNS name to connect to the NetCom Server If the connect fails the DNS name is resolved again The new result is used in the driver The driver can again contact the firewall to get access to the NetCom and the serial ports 5 8 3 Changed IP Address There are several configurations with changed or regularly changing IP Addresses This is a rough overview 5 8 3 1 Broadcast Domain The broadcast domain is part of a local network In typical SOHO networks the domain covers the entire network The broadcast domain is typically limited by Routers Broadcasts are transmitted between computer and NetCom Server if there are only Switches Hubs or WLAN Access Points on the way between those two Usually the IP Addresses in a local network are static This is also the situation when there is a DHCP server and all clients use this If the server is configured properly it will provide the same IP Address to a certain station again and again It does so because the stations are identified by their unique MAC Address A changed IP Address may occur because the network is re organized combined with a reconfigura tion of the DHCP server In
103. n of the NetCom are not active until they are explicitly saved to the Flash Memory of NetCom This menu also allows to discard all changes and even to restart the firmware 6 2 5 1 Save Parameter Telnet Save amp Exit option Save Parameter When some changes are done these modified settings should be saved A confirmation is requested before doing this SSS ii Do you want to save the changes No Exit ps Ste Rae ENE Ae Se ee dE Reboot l 4 Figure 85 Menu Save modified Parameters in Telnet The Telnet interface is still active when this operation is finished January 2012 NetCom Lite User Manual 87 6 Configure the Operation Modes 6 2 5 2 Exit Telnet Save amp Exit option Exit You will not be surprised when you leave the menu by selecting this option If you made any changes of parameters you must confirm to save these Save Parameter Reboot Do you want to save the changes No Figure 86 Menu Exit from Configuration in Telnet The NetCom terminates the Telnet interface when this operation is finished even when the modi fications are not saved to Flash Memory 6 2 5 3 Reboot Telnet Save amp Exit option Reboot Users may restart the firmware of the NetCom Modified configurations are activated by the restart process Such a restart is necessary for some ch
104. nd If the latest retrieved information is not older than 100 milliseconds this value is returned Simulate Device Off onConnectionLoss When this option is enabled the NetCom driver does not attempt to preserve transmit ted data If on a normal serial port the connected device is switched off all data sent to this device gets lost NetCom simulates this behavior All data sent from the application to the driver is discarded when the TCP connection to the Net Com is lost The NetCom driver attempts to re establish the connection in regular intervals When the NetCom is available again data may be transferred from then on January 2012 NetCom Lite User Manual 4 Windows Virtual COM Driver 4 4 4 Remote Settings Properties The other panel created by activating the Advanced checkbox on the Performance tab is the Remote Settings tab NetCom COM Port COM3 Properties RIES Network amp Misc Performance Driver Details General Local Settings Remote Settings l j NetCom COM Port COM3 vtom Tx Trigger Level 800 alo Rx Trigger Level 1248 a gt Remote Flow Control V Enable I Override App Settings Limits gt IV CTS N Y RTS V DSR Y DTR miso Limits gt gt JV Tx KON KOFF V Rx XON XOFF Figure 35 NetCom COM Port Remote Settings Properties The parameters on this tab control the operation of the serial port on the NetCom Device They are defined and activated by the
105. nsole window and use PING lt IP Address of NetCom gt to send some data The replies should reach your computer in a few milliseconds If they time out check the IP parameters again 5 Telnet to the NetCom Open a console window and use the Telnet lt IP Address of NetCom gt command to connect The configuration menu appears If not open NetCom Manager and check the setting January 2012 NetCom Lite User Manual 107 10 Troubleshooting Guide 10 11 12 13 14 of Telnet port in the NetCom The default is the name telnet or the number 23 Telnet to the serial port of NetCom Open a console window and use the Telnet lt IP Address of NetCom gt lt data port gt command to connect Everything you type is sent out through the serial port Every data received is displayed on the screen To check the oper ation place a standard loopback plug to the serial port Then you see your own data as an Echo while typing Check the Device Manager for error messages Run Hyper Terminal and open the serial port of NetCom device Use the loopback plug to see the Echo of your typing Use a Null Modem cable and connect it from COM1 to the NetCom Open a second Window of Hyper Terminal for COM1 Send some data between these two windows Transfer a file using ZMODEM protocol Often so called Personal Firewall programs cause unspecific errors when other software starts communicating Check the documenta tion o
106. nt group of serial ports Selecting a different group of ports or another configuration section from the menu may discard all changes done 6 2 3 NetCom Tools Several tools for system status checks and debugging are available in the Firmware The available tools are The Ping utility to check if a station is available Statistic information for each serial port The Netstat utility to monitor used TCP connections The option to update the firmware Saving of Configuration to Loading from a file web browser only Information logging by Syslog function and a DebugLog via TCP TP In your web browser click on the Icon of TOOLS the browser opens the list of available tools In Telnet the Tools menu provides a list of the tools January 2012 NetCom Lite User Manual 80 6 Configure the Operation Modes 6 2 3 1 Ping Web menu Tools section Ping Telnet Tools option Ping Enter the IP Address or the name of a station in the field In the web browser click the Ping button hit the lt Enter gt key via Telnet The network connection is checked by sending ICMP Echo Request data packages Ping IP Address fizzoo1 00 PING 127 0 0 1 from 192 168 1 87 44 72 bytes back of data 52 bytes from 127 0 0 1 icmp_seq 0 tt1 255 time 1 560 msec 52 bytes from 127 0 0 1 icmp_seq 0 tt1 255 time 1 542 msec 52 bytes from 127 0 0 1 icmp_seq 0 tt1 255 time 1 542 msec
107. orts need no change to operate via NetCom through the virtual serial ports 2 Introduction This manual covers several different models of NetCom Lite devices In general the operation is the same on all models except where explicitly noted otherwise The devices come with a steel case well suited for industrial environments The NetCom supports high serial speeds up to 460 kbps or 921 kbps All serial ports provide communication via the common RS 232 mode The NetCom Lite servers with a 13 in their name also offer the industrial RS 422 and RS 485 configuration In RS 485 mode the NetCom may use the Automatic Receive Transmit ART control logic to follow the RS 485 specifications for transmitting data No special code is necessary to be implemented in your software applications Some latest models of NetCom Lite servers allow to get the power supply via the Ethernet LAN cable The option of PoE Power over Ethernet has no impact on application software Exist ing programs do not require any change Therefore this manual mentions the PoE option only occasionally For most questions the PoE option is ignored 2 1 About this Manual This manual covers many configuration options of the NetCom Lite Serial Device Servers The vast majority of these are set by software sometimes in alternatives methods To emphasize these in the text special character styles are used Bold Typewriter is used for the names of configuration options or buttons
108. os ATY opor a dpa oes be ERE EA e aa h E OH 95 068 AT Gee ATHO nek ee ee A RR A 95 75 9 SY In Gnformation ATIO o seos ee eee owe A ee ee OR AA 95 DIN SVS OS 2s aas Seah k EERE LGD Oe EEG SEES ES SEES 96 v 11 AT Is Ec ke ee hho ie kee a or She he e g 96 7 5 12 AT M speaker 22 dbs eR bs oH SAE SEEAPE SEER EEG OOS 96 7 5 13 AT N auto baud ATNO 2444 6se 2454 2534 84 eee ee Gad 96 Fall AT Z reset bk es ba eS SES ee a we ERS 96 7 5 15 AT amp F factory settings AT amp FO 05 cb os eee ewe ere e 97 7 5 16 AT amp O DCD configuration ATRC 4 6 4 4426 bee ee eee See 97 75 17 AT amp 5 DSR configuration ATRB o cos eek ee eae eee we Re Ye oS 97 76 18 AT amp D DTR configuration NERS 6 ak ek oe ee Oe a A ES 97 7 5 19 AT amp K handshake AT amp K3 64 see ei ee ee wee ee ee we EG 98 A AT A on oc eee ee EDO eee A 98 fool AT amp V view Pe 0590300 eR eee oe A ea 98 January 2012 NetCom Lite User Manual 5 List of Figures 7 5 22 AT amp W save profile 26 cn es ce eee eb ee eee 7 5 23 AT amp Z save destination 2 4465 564 2654 84 dee eo 8 Print Server Operation Sl Printer Queue 55h dee see eek a SE hk wee es 8 amp 2 Printer Reset co oscar ee Ea ee eee ws 21 Init String Delinition so sa saa sabi asas me gi BO ASCU TE a a ek a a i aa 8 2 1 2 ASCI Control Codes 2 2 244454 kewaa 2a L3 Namene A cepa ee pee Pe ee ee es S214 Modem Control Signals gt lt lt e ox ap e
109. over Ethernet is available in NetCom 211 PoE Figure 2 NetCom 211 Top and Front Side This is NetCom 211 Visible are the two RJ45 for COM1 and COM2 with the configuration DIP switch The hidden rear side is the same as on NetCom 111 113 with Power connector Reset and Ethernet RJ45 fig 1 The option of Power over Ethernet on NetCom 211 PoE has no special connector January 2012 NetCom Lite User Manual 14 2 Introduction 2 3 2 3 NetCom 411 413 Four ports Serial connector DB9 male like PC Serial ports 411 4 x RS 232 413 4 x RS 232 422 485 configured by DIP switch Serial Speed 14 bps up to 921 6 kbps Power Requirement DC 9V to 30V 400 mAQ12V Power Connector Round power jack 3 6 1 Dimensions 169x93x29 mm WxDxH 169x99x29 mm with connectors Weight 500 g Table 4 Characteristics of NetCom 411 NetCom 411 ES Figure 3 NetCom 413 Top Front and Rear Side The front side of NetCom 413 and 411 holds the four DB9 male connectors for the serial ports On the rear side are the power jack the configuration switches one switch on NetCom 411 and the Ethernet RJ45 January 2012 NetCom Lite User Manual 15 2 Introduction 2 3 2 4 NetCom 811 813 Eight ports Serial connector Serial ports Serial Speed Power Requirement Power Connector Dimensions Weight DB9 male like PC 811 8 x RS 232 813 8 x RS 232 422 485 configured by DIP switch 14 bps up to 921 6 kbps DC 9V to 30V 600 mA 12V
110. panel select one serial port in this example of NetCom 113 PRO there is only one serial port Click the Properties button to open the configuration of the port Port Settings x Basic Y ig Local settings COM I Disable Remote settings Server ASTest Remote port serial 1 Current value Firewall mapping Data port 2001 9001 COMA 2000 9000 Udp port 2002 2002 Abbrechen Mbemehmen Figure 51 NetCom Manager Port Configuration for Driver Since the Firewall function is enabled the parameters for Firewall mapping are available for editing Enter the ports defined in the Router 9001 and 9000 in this example Please note so far there is no number for the Virtual Com Port available The driver is not installed in this moment and Windows does not know about the available hardware This will happen later in the installation Click the OK button and proceed with the driver installation as already described January 2012 NetCom Lite User Manual 54 5 Configure with NetCom Manager 5 7 5 DMZ and Virtual Servers Why is it recommended not to use the DMZ function of the Router There are two reasons The first one is simple only one device in the LAN can be defined as the DMZ target The DMZ is implemented as Send all IP data targeted for the Router to the DMZ station as long as there is no specific rule for a different target When a second NetCom shall be installed on the LAN t
111. r RS485 modes In RS485 the line driver for transmitting must be disabled tri stated when the device does not send data In a 2 wire configuration this is known as data direction change with 4 wire it is called line contention CSV Comma Separated Values A format to store tabular data in compact text form Each line describes a new data set Data fields are separated by a special character Though the name CSV suggests a comma in reality the delimiting character often is a semicolon or a lt TAB gt control character DHCP Dynamic Host Configuration Protocol A service used to retrieve an IP configuration and optionally much more information from a database server FTP File Transfer Protocol A common protocol to access a file server HTTP HyperText Transfer Protocol The protocol used by web browsers to access a web server Internet The net connecting networks A set of protocols to exchange data between different networks These information s are carried via a global network of fibers and satellite links IP Internet Protocol The basic definitions for data packages These Internet frames are stored and transported embedded in data frames of the local network IP Address Internet Address The Internet address is noted as a group of 4 decimal numbers IPv4 Each station on the Internet has a unique address Some ranges are reserved for private networks not connected to the Internet January 2012 NetCom Lite Us
112. rd adapter does not connect to this pin FG V V Figure 15 Power Terminal Block 3 6 3 AC Power Plug AC power is provided by a standard cable Protective Earth connects to the case B Figure 16 AC Power input January 2012 NetCom Lite User Manual 24 3 Hardware Description 3 6 4 Power over Ethernet Power is supplied via the network cable As usual this connects to the Ethernet connector RJ45 The implemented option follows IEEE 802 3af which defines a maximum of 15 W as supply for devices According to this standard the NetCom is a Powered Device PD while the power is brought to the cable by a Power Sourcing Equipment PSE Usually such a PSE is an enhanced Ethernet switch but also power inserters are available as PSE The NetCom 111 PoE 113 PoE and 211 PoE consume less than 3 Watt of power which qualifies them as Class 1 Very Low Power devices However to cover possible peaks in consumption they are configured to identify as a Class 2 Low Power up to 6 5 W PD In most applications it is save to configure a current limit as of Class 1 in the PSE January 2012 NetCom Lite User Manual 25 4 Windows Virtual COM Driver 4 Windows Virtual COM Driver This chapter covers the use of NetCom Devices via Virtual Com Ports installed by the supplied driver software for Windows Sections 4 1 to 4 3 describe in details the process of driver installation and removal as well as updating This first part here is for
113. rd parties that may result from its use This product might include unintentional technical or typographical errors Changes are period ically made to the information herein to correct such errors and these changes are incorporated into new editions of the publication January 2012 NetCom Lite User Manual 2 Contents Contents 1 Overview 10 2 Introduction 10 Bal Bobi tiie nmal ooe we Sa ek we ee He poke Sk ae ae ee ES 10 2 2 PARDO ocean ee oe ee 11 2 0 Product Specifications 4 6664 8 fp as ee ee 12 23 1 Common characteristics 6064 soei dd es 12 2 3 2 Device specific Characteristics 00 0 0 eae 13 2 3 2 1 NetCom 111 113 111 PoE 113 PoE 13 233 2 NeiCom 211 1 Por 2 52 2 age eae a os 14 2333 NetCom all dle sicarios or ase ES ESS 15 2324 Neto Ril BIE wc ee we ee ea wee we 16 2 3 2 5 NetCom 811RM 813RM 19 18 24 Packing Ligt cocos cel tesina ee ee ee es 19 3 Hardware Description 20 3 1 Serial Port Confipuwation se sss saag orar aa ba s AOK ke 20 3A ignali ASSISMIOEDL op aa ake RRR a RR a 21 deL erial DBI male lt s egos sod 698 ee we ee a ee 21 32 2 Serial RJ45 to DBS male s spo cee owe eR 22 oa oetial DBO female ac 6 224 0645 8 0455 8 eke ew ew Os 22 3 3 RS 422 485 Electrical Configuration ccoo 6464 he 44445 22 3 3 1 Termination Resistors 00 002 eee ee eee 23 3 4 Serial Port Simple Settings o 2 2022 0008 23 de INERTE Sou ahs wie Gd ae we wee A
114. re January 2012 NetCom Lite User Manual 104 9 TCP IP Description 9 TCP IP Description TCP IP is the protocol used on the Internet Nowadays it is also used in local networks This opens access to any device connected somewhere to the Internet But a simple contact like plugging in a cable is not enough The network has to be configured Your network administrator is responsible to do that If any question during configuration ask him Configuration means to set certain parameters in any device and computer Since IP configuration is a frequent source of problems a little bit of theory is provided here 9 1 Recommended Settings Basically every device on the LAN has a so called IP Address In typical small networks the IP Address is similar to 192 168 X Y and there is a corresponding netmask of 255 255 255 0 The X ranges from 0 to 255 while Y is from 1 to 254 The combination of X Y must be unique in your LAN i e two stations must not have the same configuration 9 1 1 Static Configuration All stations on the network have a fixed IP Address In small networks this is typically of the 192 168 type To configure NetCom for your LAN it must have the same 192 168 X as your computer and the same netmask So it needs a unique Y to establish communication 9 1 2 DHCP Configuration Another typical configuration is the automatic configuration This requires a dedicated server in the LAN which serves as a so called DHCP server
115. rt for your printer you need to enter some additional information As the Device Type select Custom and open the Settings Port Settings Port Name fied Printer Name or IP Address netcom3 vscom local M Protocol C Raw LPR gt Raw Settings Port Number E 00 M LPR Settings Queue Name pan mT SNMP Status Enabled Community Name public SNMP Device Index fC Cancel Figure 92 Mode Properties of Print Server Port Under Port Settings select the LPR protocol instead of the Raw method The Port Number becomes unavailable because the standard TCP Port 515 is used in this configuration Enter the Queue name you configured in the NetCom Each serial port on a NetCom has a separate Queue name to identify it So it may be a good idea to name the queue after the printer attached to the serial port Be sure to enable the Byte Counting because this is required by the Print Server function in the NetCom Close these options with the OK button 8 3 1 4 Install Printer Driver Now the printer port is installed and the Printer installation Wiz ard continues Select the printer from the list or install a new type using an installation disk the usual way 8 3 2 Modify an Existing Printer In several situations it is necessary to modify the configuration of a printer which is already installed in Windows For example the mode of use shall be changed to Printer Server Mode
116. ry to provide a certain state of the modem control signals RTS and DTR applied with special timing The TnitString in the NetCom Device Serves offer all these options January 2012 NetCom Lite User Manual 99 8 Print Server Operation 8 2 1 1 ASCII Text Ordinary ASCII characters are entered as they are on the keyboard The single exception is the Less Than character lt which is used for other special functions 8 2 1 2 ASCII Control Codes ASCII control codes are entered by their standard name enclosed in Angle Brackets i e in lt and gt Greater Than Some examples of this are lt ESC gt lt CR gt or lt TAB gt 8 2 1 3 Numeric Codes Especially binary data must be sent by means of its numeric value Since the lt ASCII character has a special function the only way to use this is the numeric method This also applies to printable characters of some Extended ASCII character sets The NetCom accept the decimal value also enclosed in angle brackets Up to three decimal digits define the character to send to the printer The lt is used as lt 60 gt while the lt ESC gt may also sent as lt 027 gt The gt may be used directly however for clarity lt 62 gt should be preferred 8 2 1 4 Modem Control Signals Via the InitString control of RTS and DTR is available This manual does not make statements about voltage levels on the signals these are just set to an active or ina
117. s a so called Helper Service on the system This service monitors the configured NetCom Servers and detects the changed IP Address The driver is reconfigured to use the new IP Address so the port is usable again This all happens without specific user interaction 5 8 1 Configure Helper Service The NetCom Helper Service is configured via NetCom Manager There is a new Register card In the upper part users Enable the Helper Service and they also configure the Polling Period i e frequency If the Helper Service is disabled it is also stopped in the system it does not consume any system resources Of course it does not provide any help when disabled The Polling Period is given in seconds When the interval has passed the configuration of the NetCom Servers is checked January 2012 NetCom Lite User Manual 55 5 Configure with NetCom Manager NetCom Servers NetCom Helper Service 3 General AP Enable N AP Polling Period sec NetCom Servers Include for Helper Service ra NetCom_Demo_494 IV Enable Figure 52 NetCom Helper Service The lower part in the new panel lists all NetCom Servers available in the system configuration The user must decide which of those shall be monitored Enable At the regular intervals as configured above the NetCom Server is checked The Helper Service attempts to connect to the NetCom Server and verifies the parameters If the verification fails the Service uses several method
118. s frequently used to configure a modem to auto answer incoming calls S1 may be checked by software if S0 is Zero i e no Auto Answer S2 may be set to a different character if the may happen in typical data Otherwise the software must insert a pause in the transmission 7 4 3 Sample Commands used by Windows The NetCom IP Modem is intended for manual installation as kind of a Standard Modem in Windows The reference is the MDMGEN INF file The commands used in that file are ATE ATA ATH AT amp F EO Vi amp C1 amp D2 S95 47 SO 0 lt cr gt ATSO 0 lt cr gt ATX4 ATS7 lt gt ATYC ATAN AT amp K ATS30 lt gt ATB ATDP ATDT ATL ATM 7 5 Description of AT Commands The commands are listed more or less in a functional grouping Configuration commands are listed also with their default settings in brackets January 2012 NetCom Lite User Manual 93 7 IP Modem Function 7 5 1 AT D dial This is the general Dial command The target is defined as IP Address plus TCP port number The dots in the address are replaced by a comma and the TCP port is also separated by a comma On normal modems a comma generates a pause in the dialing sequence This is commonly required so all software will support it even multiple comma The modifiers T for Touch Tone and P for Pulse dialing have no direct equivalent on the TCP connection They are used to change between Modem and Host
119. s to find and identify the NetCom Server 5 8 2 Detection and Priority The NetCom Helper Service has two basic methods to detect and identify a NetCom Server The first method is the broadcast search on the network the new method is DNS based The DNS method has two variants with or without firewall configuration The reasons for changing IP Addresses or the methods to use are discussed later 5 8 2 1 Broadcast Search The method of broadcast search is the same method as used in the NetCom Manager A broadcast request is sent to the local network and the NetCom Servers reply to this The NetCom Manager lists them for configuration This method is used by the NetCom Helper Service also A NetCom Server is identified by MAC Address and Serial Number These two parameters are fixed customers can not change them If a NetCom Server is found with a changed IP Address the driver configuration is updated 5 8 2 2 DNS based Search In driver versions up to 1 5 5 the NetCom Server has been configured by its IP Address This is still the standard situation in later driver versions However the Info Panel of Server Properties is modified see figure 47 You may enter a Qualified Domain Name instead of the IP Address DNS Search DNS Name NetCom_Demo_494 visionsystems local Cancel Figure 53 Enter Qualified Domain Name The name is resolved i e translated to the current IP Address associated with the name This IP Address is configured
120. shortly explains the different methods to get access on the parameters of a NetCom These parameters are the same independent from the method for configuration So the options are described later The configuration is accessible via web browser a Telnet software with VT100 VT52 emulation or via a Terminal emulation connected to the first serial port of the NetCom 6 1 1 Web Browser Configuration Open your favorite web browser and enter the IP Address as the target location To avoid any confusion you should precede it with http so your browser has definite target information Most browser programs do not need that Your browser must not suppress images If the NetCom is password protected you must enter this now Leave the user name empty just type the password January 2012 NetCom Lite User Manual 59 6 Configure the Operation Modes G O HAG PYreOla Vas id HOME SERVER SERIAL TOOLS REBOOT CONFIGURATION CONFIGURATION Welcome to the Configuration of NetCom Serial Device Server Please note to finally activate all changes of parameters it is recommended to use the REBOOT function in the menu Otherwise certain settings especially changes in TCP IP parameters may neither be saved nor activated For more information about parameters please read the documentation Figure 54 Configuration Menu in Web Browser The NetCom welcomes you with its Home screen To access the different options of configuration the
121. sible to use the NetCom Manager program In this case you must connect to the NetCom via the serial port Disconnect any serial cable from NetCom Set the DIP Switches to RS 232 Configuration all switches to Off section 3 1 Then connect the NetCom with your computer using a Null Modem cable If your NetCom is an old model with a connector DB9 female attach the supplied Null Modem Adapter to the port first Or connect your computer to the female connector with a straight through cable Open any serial terminal program Hyper Terminal minicom PuTTY select 38400 bps 8 Bit No Parity as configuration Set your terminal to emulate a VT100 recommended but VT52 is also possible including the Arrow keys Then power on the NetCom When connected to NetCom you must define the type of terminal used VT100 or VT52 and optionally provide the password This is the same configuration option as described above at 6 1 2 so follow the instructions for Telnet When the configuration is done change the DIP Switches back to normal operation Later con figurations can be done by web interface or Telnet Of course this requires to have a functional IP configuration defined 6 2 NetCom Configuration Options Some of the menus are very long especially on the web interface These are divided in their logical sections throughout this document Each section shortly mentions the way to access the parameters Short screen shots show the typical disp
122. start menu The third method A VScom NetCom Y FM NetCom Manager is to start the Installation Wizard again from E Repair CD ROM or the installation directory lt ee The Wizard will detect the drivers on the sys tem You have the options to Repair the cur rent installation or to Remove the installed Figure 42 Uninstall NetCom Drivers in Start drivers Since the Installation Wizard is of the Menu same version as the installed drivers the option of Update is not available Installation Options Repair Remove EXI Removes driver files from the system Uninstall Figure 43 Remove Repair A Repair replaces the driver files on the system with those in the installation package Since this is the same versions the files should also be the same If anything is damaged in the installed drivers the Repair process will correct the problems As expected the Remove process will uninstall drivers and tools from the system The drivers are removed from the configuration and also completely deleted from the System drive This happens with any configuration data also Afterward the system is available for a clean installation January 2012 NetCom Lite User Manual 45 5 Configure with NetCom Manager 5 Configure with NetCom Manager Shipped with the NetCom Devices there is a versatile program for Windows Operating System named NetCom Manager This program shall detect manage and configure the NetCom Devi
123. stens on port 1200 for logging connections The Firewall must also have a special Log Port to receive this connection and to transfer it to the NetCom The NetCom does not need any configuration to operate in a Firewall protected environment This configuration here is for installation of the drivers There is a Firewall tutorial section later in this manual 5 7 January 2012 NetCom Lite User Manual 50 5 Configure with NetCom Manager 5 5 NetCom Server Settings Options Server Settings x Info Ports Firewall Options S NetCom_0090100555 Save to File Load from File Reboot Server Apply Changes Verify Firmware Update Exclude Server IV Enable Log Wed Oct 13 18 09 29 2004 NetCom_0090100555 Logging started ae Password Scroll To Bottom Clear Capture OK Cancel Verify Figure 50 NetCom Manager Server Settings Options This Panel is available since software version 1 4 8 0 in this enhanced version A SafetoFile of the configuration is available as well as the opposing Load from File of this data You can also Reboot the NetCom This may be useful e g if an old connection blocks access to the NetCom The button Apply Changes commits all parameter settings done so far to the NetCom And the Verify checks the current settings by reloading the status from the NetCom to the Manager program When you want to install a Firmware Update use this button
124. stom name for each queue while the default name is lpd plus the number of the serial port Ipd1 lpd2 This name is set in the properties of the serial port When the Ipd is running on a separate computer the hard disk is used to save the data of the queues The NetCom Servers neither have a mass storage device nor huge amounts of memory Each queue accepts at least one job with a size of up to 250 KB print data If the job has more data memory is either assigned dynamically to save the job or the data is spooled through a ring buffer Data is printed while the client still sends data The amount of available dynamic memory depends on the number of ports in a NetCom Device Server and the operations active on these ports 8 2 Printer Reset Before a new job is sent to the printer this printer should be in a well known state On a parallel printer port this is easy to achieve There is a defined signal to send a reset command to the printer Such a definition is not available for serial printers Instead there is a reset command which users may send via the serial line Typically this command is specific to the manufacturer or even to the printer model So the NetCom allows to specify this command by entering an InitString for each queue 8 2 1 Init String Definition The Initialization of the printer typically involves ASCII control codes ordinary ASCII characters and some binary data On some models it may also be necessa
125. t to Use DHCP for automatic configuration of IP parameters This is the suggested method However there are several situations where this option can not be used In this case deactivate it When inactive other parameters may be changed The basic parameters IP address and Netmask are mandatory Instead of an IP Address you may enter a DNS name The NetCom Manager will resolve that name to the actual IP Address If address or netmask are changed the NetCom Manager calculates a matching address for Broadcast You may also change this address The DHCP option will also configure the Default gateway and the Name server Without DHCP you must enter these parameters by your self enter 0 0 0 0 if they are not used January 2012 NetCom Lite User Manual 48 5 Configure with NetCom Manager 5 3 NetCom Server Settings Ports The Ports panel lists all serial ports of a NetCom Some of the options are driver related e g the ComNumber Each serial port may operate via two TCP ports Server Settings x Info Ports Firewall Options Ea NetCom_0090100555 Port s for this server Remote Name Com Number _ Exclude TCP Control wut serial 2 e serial 3 Je serial 4 2020 2030 DM e Properties Exclude auto rename Verify Cancel Verify Figure 48 NetCom Manager Server Settings Ports The TCP Control Port is used in the Virtual Com Driver mode and also in Null Modem Tunnel
126. ta from the drivers database For monitoring purposes you may select a NetCom and Start Log for this It may be done for several Devices at the same time The output is visible in the Log Windows panel January 2012 NetCom Lite User Manual 47 5 Configure with NetCom Manager 5 2 NetCom Server Settings Info As described above open the Properties of a NetCom Device The Server Settings start with the Info panel Configure the options as your network requires Info Ports Firewall Options S NetCom_Demo_494 Server Name NetCom_Demo_494 Serial number 10100494 Product type 413 Hardware Rev 1 0 Firmware Rev 2 4 1 MAC Address 00 04 D9 80 0F F0 m Network settings iv Use DHCP Telnet port tenet IP address DNS Netmask Broadcast Default gateway 192 168 1 1 Name server 192 168 1 3 Verify Cancel Verify Figure 47 NetCom Manager Server Settings Info The Server Name is just for information As factory setting it includes the serial number of the device You may change it to any string of ASCII characters since there is no functionality related to the name This name is listed in the Server panel of NetCom Manager The next parameters are fixed and displayed for information only The Telnet port allows to configure this NetCom via Telnet The value is a TCP port number Factory setting is23 the standard port for Telnet protocol By default the NetCom is se
127. the current encryption key WLAN short for Wireless LAN This is a general name however today this phrase is used for the IEEE 802 11 protocol definitions WPA Wireless Protected Access This is the successor of WEP WPA not only includes better strong encryption there is also a set of functions to restrict access by means of user authorization or different hardware parameters MAC ad dress distance January 2012 NetCom Lite User Manual 112 12 History 12 History November 2008 First release of new manual December 2008 Firmware version 2 6 0 June 2010 Firmware version 2 6 2 November 2011 Update NetCom 111 113 to hardware 2 0 DB9 male Added DHCP recommendations Windows 7 Support included Firmware 2 6 3 January 2012 Add models NetCom 111 PoE 113 PoE and 211 PoE with Power over Ethernet option January 2012 NetCom Lite User Manual 113
128. the printer is moved from a local serial port to a NetCom Serial Device Server or the installation program of the printer only accepts local serial ports to attach the printer to In such situations it is required to create a new lpd port and modify the configuration of the printer 8 3 2 1 Open the properties Again open Printers and Faxes in the Control Panel January 2012 NetCom Lite User Manual 103 8 Print Server Operation Device Settings Printer Commands FontSelection General Sharing Ports Advanced es Generic Text Only Print to the following port s Documents will print to the first free checked port O LPT3 Printer Port O COM1 Serial Port O COM2 Serial Port O COM3 Serial Port O COM4 Serial Port O FILE Print to File lpd1 Standard TCP IP Port Generic Text Only X Add Port Delete Port Hoe JP Enable bidirectional support TT Enable printer pooling OK Cancel Apply Figure 93 Select Port for Printer Select the installed printer and open the properties In the properties select the tab for Ports 8 3 2 2 Add the Print Server Port The button for Add Port opens a dialog with the possible printer port types Available port types Local Port New Port Type Cancel Figure 94 Add Printer Port Select Standard TCP IP Port and click on New Port This will open the Add TCP Port wizard as of section 8 3 1 1 above Proceed as described the
129. tings Ports sv os ordenes ss a 49 5 4 NetCom Server Settings Firewall o o eee 50 5 5 NetCom Server Settings Options 0 002 eee eee ees 51 5 6 Manual Detection Installation of a NetCom ooo eee eee 52 5 7 Firewall Traversal Configuration s c sew 0 eg eee ee eee ee eS 52 al SOHO Firewall example so c mce aop o uis Bo ea ee Re Re 52 Sia SOHO Virtual Servers o ce a A a ee a e 53 5 7 3 NetCom Detection through SOHO Firewall 53 5 7 4 Serial Ports through SOHO Firewall o 54 5 73 DMZ and Virtual Servers gt o s sow 64 acs ewe aa ee 55 58 NetCom Helper Service cono ria eR A OR a e a 55 5 8 1 Configure Helper Service o seo sa mR Rw ee 55 58 2 Detection and Priority 668 8 04544 Po eh RA 56 53 21 Broadcast Search lt o o sso 4 eee ee eR RE A a 56 5 8 2 2 DNS based Search 26 5 ose moran 56 5 8 2 3 DNS based Firewall Configuration 57 Seo Changed IP Addres e c c oe a eo le hw ee Ee he Ge A 57 5 8 3 1 Broadcast Domain esa ossa ou n asta 57 583 2 Internal DNS 2 2 2 ek 0 02 ee ai 58 Pose TONE cn nib x s ae Seale a eo a a ee ak a ele 58 mee Pelle Pere s sa hoe ee Soto A A eG EW ee E AA a a 58 6 Configure the Operation Modes 59 6 1 Accessing the Configurations e 59 6 1 1 Web Browser Configuration 2 2 0 0 cac eee ee ee daa 59 6 1 2 Telnet Configuration 2 42554 us serias
130. transmission Characters are sent as separate bits timing is well defined The medium is copper cable using typical 12 Volt Each signal is defined related to a common ground one wire per signal plus GND RS 232 is a point to point connection RS 422 V 11 Industrial serial transmission multidrop A transmission method with balanced signals Designed for higher speed longer cables and is resistive against electrical noise RS 422 allows for up to 16 receivers The typical transmission is via twisted pair copper cable using balanced signals Sender and receivers must share a common voltage range max 7Volt difference Two lines per signal plus common GND RS 422 is a point to multipoint connection RS 485 Industrial serial transmission multipoint The signals and cables are the same as RS 422 The transmitters can go tri state Several stations can send data on the same lines at different times RS 485 is a multipoint to multipoint connection SNMP Simple Network Management Protocol A general purpose configuration system Devices understanding SNMP may be configured and monitored January 2012 NetCom Lite User Manual 111 11 Glossary of Terms TCP IP Transmission Control Program Internet Protocol TCP establishes connections between two partners via the Internet The data is sent in IP frames each frame is acknowledged be the recipient Lost packages are repeated Software using TCP has a secured transmission th
131. vel 800 Figure 65 Serial Settings The serial ports are based on 16C550A UARTs the Model and maximum speed are also displayed The current UART Model may be virtually changed to a less advanced type In some situations it may be desirable to deactivate the FIFO memory or some other options January 2012 NetCom Lite User Manual 68 6 Configure the Operation Modes When the NetCom is used via the Virtual Com Driver mode the following serial parameters are controlled by the application which opened the serial port However certain installations use a different operation without Driver mode Then the serial parameters must be defined via this configuration section The Baudrate may be selected in a drop down list of common values or entered manually If Manual is selected in the list the value in the respective field is used to transmit data NetCom checks if the configuration is possible and warns otherwise DataBit per character Parity and StopBit are quite usual parameters The FlowType is available as standard configuration But there is also the option of Advanced Configuration FlowType Configuration Advance Port Nr 1 On Off AutoCTS off AutoCTS eit AutoRTS off AutoDSR off AutoRTS Cle AutoDTR off e G AutoTxXOnXOff off AutoDSR AutoRxXOnXOff off AutoDTR AutoT XONXOR 6 AutoRxXONXOR 6 Figure 66 Advanced Flow Control This gives very speci
132. will later ignore this NetCom when installing and operating the serial ports The Icon changes to live color TO o aai In figure36 above you ll notice yellow questions marks at each icon These appear when the NetCom is not already installed for the Virtual Figure 37 Excluded Com driver It may also appear if you open NetCom Manager without NetCom administrative privileges If the mark changes to a red exclamation mark the NetCom is non functional It may be without power the network may be broken or the device is completely removed Or the NetCom Manager is still without administrative privileges To clear the display in NetCom Manager just select that NetCom and use the Remove button January 2012 NetCom Lite User Manual 42 4 Windows Virtual COM Driver If a NetCom has not been operational when the Manager program was started it is either displayed with the exclamation mark or not displayed at all You may make it operational by connecting it now To install it use the button Search to find it in the network Or Add it manually with that button section 5 6 FY servers vi Ports la Log Window TCP Control Port TCP Data Port UDP Da NetCom_0I serial 1 Je NetCom_ serial 2 ve NetCom_ serial 3 Je NetCom_ serial 4 Properties Auto Rename Exclude Figure 38 NetCom Manager Ports View Similarly you may exclude certain ports on a specific NetCom Server from installation as a Virtual Com port
133. y IP Address or by name A name of course requires a configured DNS server 6 2 1 5 Save Web menu SERVER CONFIGURATION at bottom Save At the bottom of the web page below all the options there is the button Save This will store all configurations done here in the NetCom Selecting a different configuration section from the menu DHCP has to be active in the Server Parameter 6 2 1 2 see at Server Parameter 6 2 1 2 January 2012 NetCom Lite User Manual 66 6 Configure the Operation Modes may discard all changes done For many configuration changes the NetCom requires a reboot to proceed especially if the IP parameters have been updated The Telnet section has a separate menu for saving configurations described later 6 2 2 Serial Port Configuration In your web browser click on the Icon of SERIAL CONFIGURATION This is a huge menu in the web browser Each serial port of the NetCom is listed in a separate Column A maximum of four serial ports is shown Select the appropriate group of ports Page Port 1 4 y Figure 63 Port Page Selection in Web Browser The top half of the parameters titled Serial Settings is directly related to common serial config urations The bottom half titled Transfer Settings configures the operation mode of NetCom on the network Each serial port is configured separately there is no setting shared between ports In the Telnet menu select SerialPorts in

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