Lantronix CoBox-FL User Manual Download Page 92

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UDP

8.3.3 Baud Rate

The Device Server and attached serial device must agree on a speed or baud rate to use for

o Use the following table to select Baud Rate settings:

Settings

the serial connecti n.

Table 25 - Baud Rate

Speed
(bps)

Hex

38400 00
19200 01
9600 02
4800 03
2400 04
1200 05
600 06
300 07
115200 08
57600 09

8.3.4 Flow Control

Flow control sets the local handshaking method for stopping serial input/output. Generally,
flow control is not required if the connection is used to pass a blocked protocol with block

19200 or less. Use the following table to

sizes less than 1k (ACK/NAK) and/or speeds of
select Flow Control option

Table 26 - Flow Control Options

Op on

Hex

flo control

XO /X

ntro

OFF flow co

Ha wa

ke w

re handsha

ith RTS/CTS lines

XO /X

ara

OFF pass ch

cters to host

8-10

CoBox-FL User Guide

Summary of Contents for CoBox-FL

Page 1: ...CoBox FL CoBox FL IAP User Guide Part Number 900 285 Revision E 8 03 ...

Page 2: ...s of America Ethernet is a trademark of XEROX Corporation UNIX is a registered trademark of The Open Group Windows 95 Windows 98 Windows 2000 and Windows NT are trademarks of Microsoft Corp Netscape is a trademark of Netscape Communications Corporation Lantronix 15353 Barranca Parkway Irvine CA 92618 USA Phone 949 453 3990 Technical Support Phone 800 422 7044 or 9949 453 7198 Fax 949 450 7226 On l...

Page 3: ...operating in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this guide may cause harmful interference to radio communications Changes or modifications to this device not explicitly approved by Lantronix will void the user s authority to operate this device The information in this guide may change withou...

Page 4: ...ated Immunity Field Test IEC61000 4 4 1995 Electrical Fast Transient Test IEC61000 4 5 1995 Power Supply Surge Test IEC61000 4 6 1996 Conducted Immunity Test IEC61000 4 8 1993 Magnetic Field Test IEC61000 4 11 1994 Voltage Dips Interrupts Test L V D Directive 73 23 EEC Supplementary Information This Class A digital apparatus has been verified as being compliant within the Class A limits of the FCC...

Page 5: ...ip the replacement media to the customer In no event will Lantronix be responsible to the user in contract in tort including negligence strict liability or otherwise for any special indirect incidental or consequential damage or loss of equipment plant or power system cost of capital loss of profits or revenues cost of replacement power additional expenses in the use of existing software hardware ...

Page 6: ...d lantronix com Germany Karlstrasse 49 78054 VS Schwenningen Germany Tel 49 0 77 20 30 1620 Fax 49 0 77 20 30 1688 ursula koch lantronix com Asia Pacific 16th Floor Cheung Kong Center 2 Queen s Road Central Hong Kong Tel 852 2297 2287 Fax 852 2297 2357 asiapacsales lantronix com EMEA Sales Europe Mid East Africa eu_sales lantronix com eu_order lantronix com EMEA Technical Support 49 0 7720 3016 20...

Page 7: ...t Connectors 1 7 1 8 Serial Interface Cable 1 8 1 9 Network LEDs 1 8 1 10 Serial LEDs 1 9 1 11 Dimensions 1 10 1 12 Product Information Label 1 10 1 13 Software Support 1 10 1 14 Power Requirements 1 11 1 15 Technical Specifications 1 12 2 Getting Started 2 1 2 1 Addresses and Port Number 2 1 2 1 1 Ethernet MAC Address 2 1 2 1 2 Internet Protocol IP Address 2 1 2 1 3 Port Number 2 2 2 2 Physically...

Page 8: ...he Serial Port 3 12 3 5 Server Configuration Network Configuration 3 12 3 5 1 IP Address 3 12 3 5 2 Set Gateway IP Address 3 12 3 5 3 Netmask Number of Bits for Host Part 3 13 3 5 4 Change Telnet configuration password 3 14 3 5 5 DHCP Naming 3 14 3 6 Channel 1 Configuration Serial Port Parameters 3 15 3 6 1 Baudrate 3 15 3 6 2 I F Interface Mode 3 15 3 6 3 Flow 3 16 3 6 4 Port Number 3 16 3 6 5 Co...

Page 9: ...2 3 Via Another Unit 4 5 4 2 4 Via the Serial Port 4 6 5 DeviceComm Manager 5 1 5 1 Installing DeviceComm Manager 5 2 5 1 1 Install DeviceComm Manager 5 2 5 1 2 Setup 5 3 6 Troubleshooting 6 1 6 1 Technical Support 6 1 6 1 1 Technical Support 6 1 7 Monitor Mode 7 1 7 1 Monitor Mode 7 1 7 1 1 Entering Monitor Mode Via the Serial Port 7 1 7 1 2 Entering Monitor Mode Via the Network Port 7 1 7 1 3 Mo...

Page 10: ... Broadcast Address 8 15 8 4 6 Private IP Networks and the Internet 8 16 8 4 7 Network RFCs 8 16 9 Binary to Hex Conversion 9 1 9 1 Connect Mode Options 9 1 9 2 Disconnect Mode Options 9 5 9 3 Flush Mode Buffer Flushing Options 9 7 9 4 Interface Mode Options 9 13 9 5 Pack Control Options 9 14 10 IP Addresses 10 1 10 1 Class A Network 10 1 10 2 Class B Network 10 1 10 3 Class C Network 10 1 10 4 Net...

Page 11: ...twork Window 2 8 Figure 9 Devices in a Group 2 9 Figure 10 Device Management Window 2 10 Figure 11 Lantronix Web Manager 3 4 Figure 12 Server Properties Configuration on the Web Browser 3 6 Figure 13 Setup Mode Window 3 11 Figure 14 Device Installer 4 2 Figure 15 Search Network Window 4 3 Figure 16 Devices in a Group 4 3 Figure 17 Upgrade Firmware 4 4 Figure 18 TFTP Dialog Box 4 5 Figure 19 UDS Co...

Page 12: ...2 Table 17 Monitor Mode Commands 7 2 Table 18 Command Response Codes 7 2 Table 19 UDP Configuration 8 1 Table 20 Block Types 8 5 Table 21 Setup Record Construction 8 7 Table 22 Channel Parameters 8 8 Table 23 Interface Mode Options 8 9 Table 24 Common Interface Mode Settings 8 9 Table 25 Baud Rate Settings 8 10 Table 26 Flow Control Options 8 10 Table 27 Connect Mode Options 8 11 Table 28 Disconne...

Page 13: ...Contents Table 38 Disconnect Mode Options 9 5 Table 39 Flush Mode Options 9 7 Table 40 Interface Mode Options 9 13 Table 41 Pack Control Options 9 14 CoBox FL User Guide vii ...

Page 14: ......

Page 15: ...or datagram applications A few of the different types of serial devices supported are listed below Time Attendance Clocks and Terminals ATM Machines CNC Controllers Data Collection Devices Universal Power Supply UPS Management Units Telecommunications Equipment Data Display Devices Security Alarms and Access Control Devices Handheld Instruments Modems The CoBox FL connects these devices through a ...

Page 16: ...stablished over Ethernet and IP TCP IP UDP IP networks As a result limited distance point to point direct serial connections can be extended within the plant throughout the facility or across the global enterprise The following picture is one of the Device Servers in the IAP family Figure 1 CoBox FL IAP Lantronix provides IAP Device Servers specifically designed for different industrial environmen...

Page 17: ...well Automation and Modbus Schneider Electric Where the IAP Standard Tunneling protocol is limited to exclusive standard ASCII device to device connections the industrial protocols offer connections to other devices that require special formatting or features simultaneously For information about using any of the industrial communication protocols see the user manuals on the software CD or our web ...

Page 18: ... packet count low The alternate packing algorithm minimizes the packet count on the network and is especially useful for applications in routed Wide Area Networks Various parameters can be set in this mode to economize the serial data stream 1 3 2 IP Address Every active device connected to the TCP IP network must have a unique IP address This IP address is used to reference a specific device for ...

Page 19: ...e CoBox FL Channel 1 is a female DB 25F supporting RS 232C RS 485 or RS 422 DCE serial interface The default serial port settings are 9600 baud 8 data bits no parity and 1 stop bit 1 DB 25F RS 232 485 TX input RX output RTS input TX out TX out CTS output DSR output DTR input RX in 13 25 14 Note 2 GND DCD output Reg 5VDC RX in Note 1 Note 2 Reg 9 30VDC Note 1 Note 1 The Device Server can alternatel...

Page 20: ... contains a 9 30V AC DC power plug four LEDs an ST Fiber 10BASE FL Ethernet port and an RJ 45 10BASE T Ethernet port Both Ethernet ports support 10 Mbps and are auto detecting 10 BASE T E FL Tx GL 9 30V AC DC 10 BAS Tx Rx Rx Co 10BASE FL Ethernet Port LEDs Power 9 30V AC DC 10BASE T Ethernet Port Note Do not attempt to connect both Ethernet ports simultaneously If one is used the other is disabled...

Page 21: ...TX 6 RX Green Brown White View from 2 TX 3 RX Ethernet RJ45 Figure 2 RJ 45 Connector Table 1 Ethernet Interface Signals Signal Name DIR PIN Primary Function TX Out 1 Transmit Data TX Out 2 Transmit Data RX In 3 Differential Ethernet Receive Data RX In 6 Differential Ethernet Receive Data 1 7 ST Fiber Ethernet Connectors The CoBox FL also supports 10Mbit Ethernet through an ST Fiber Ethernet connec...

Page 22: ...CE 25 Pin MALE TX in RX in GND 4 5 9 8 3 2 7 1 6 CTS RTS DTR DSR TXD RXD 9 Pin FEMALE DTE 1 14 2 3 4 5 6 1 ork LED 20 9 Netw s The following table explains the function of the four network LEDs Tx GL Rx Co 9 30V AC DC LED Meaning GL Good Link rt is connected to Lights solid green to indicate network po the network Tx Network Transmit ckets are transmitting Blinks yellow to indicate network pa Rx N...

Page 23: ...e that Channel 1 does not have a Channel 1 does have a connection to r from the network o YELLOW CH2 Lights solid yellow to indi to or from the network Blinks yellow to indicate Channel 2 does have a connection to or from the network cate Channel 2 does not have a connection RED Diagnostic Blinks or lights solid red in combination with the green Channel 1 LED to indicate diagnostics and error dete...

Page 24: ...A Part Number MAC ID Rev A11 Revision 1 13 Software Support DeviceInstaller is a powerful software utility for configuring device servers from a network connection For more information see Using DeviceInstaller on page 3 2 Lantronix DeviceComm Manager is a Windows based COM port redirector software utility Its function is to redirect customer application data destined for a local serial COM port t...

Page 25: ...nts The CoBox FL is shipped with a 12VDC 0 8A 100 240VAC 50 60Hz power supply but VAC DC and 30V AC DC can be used any power supply between 9 10 BASE T 10 BASE FL Rx Tx Tx GL 9 30V Rx Co AC DC Power 9 30V AC DC CoBox FL User Guide 1 11 ...

Page 26: ...re change per hour 20 C 36 F Storage range 40 to 66 C 40 to 151 F Humidity 10 to 90 RH non condensing 40 to 60 recommended Case Metal case with mounting flanges Protocols Supported Auto IP ARP UDP IP TCP IP Telnet ICMP SNMP DHCP BOOTP TFTP and HTTP Network Interface RJ 45 10BASE T or ST Fiber 10BASE FL Serial Line Formats Characters 7 or 8 data bits Stop bits 1 2 Parity odd even none Modem Control...

Page 27: ...may remove the web pages and change the configure dialogs See the user manuals on individual protocols for protocol specific settings and configuration dialogs Protocol manuals are found on the software CD This section describes the setup and configuration dialogs for the Standard Tunnel Protocol Note The following information is based on the condition that a CoBox FL is loaded with Standard Tunne...

Page 28: ...l Interface Cable on page 1 8 to connect a PC COM port to the CoBox FL Ethernet RS 232 9 30V AC DC Ethernet 10 BASE T E FL Tx GL 9 30V AC DC 10 BAS Tx Rx Rx Co Figure 3 CoBox FL Connected to Serial Device and Network 1 Connect a serial device to your unit See Serial Interface Cable on page 1 8 for more information about cable and connector specifications 2 Connect an Ethernet cable to one of the E...

Page 29: ...ration port port 9999 This eliminates the possibility of several people simultaneously attempting to configure the unit See ARP and Telnet on page 2 11 AutoIP This automatic method is appropriate when you have a small group of hosts rather than a large network This method allows the hosts to negotiate with each other and assign addresses in effect creating a small network See AutoIP on page 2 4 Se...

Page 30: ...ithin the unit AutoIP is an alternative to DHCP that allows hosts to automatically obtain an IP address in smaller networks that may not have a DHCP server A range of IP addresses from 169 254 0 1 to 169 254 255 254 has been explicitly reserved for AutoIP enabled devices The range of Auto IP addresses is not to be used over the Internet If your unit cannot find a DHCP server and you have not manua...

Page 31: ...sert the product CD into your CD ROM drive The CD will automatically start and display the main window If the CD does not launch automatically a Click the Start button on the Task Bar and select Run b Enter your CD drive letter colon backslash deviceinstaller exe e g E deviceinstaller exe Figure 4 CD Main Window 2 Click the Device Installer button The installation wizard window displays 3 Respond ...

Page 32: ...Installer The Device Installer window displays Figure 5 DeviceInstaller Window 1 Click the IP icon T ys he Assign IP Address window displa Figure 6 Assign IP Address Window 2 In the Enter the Hardware or Ethernet Address field enter the Ethernet address MAC address which is listed on the label on the side of the unit 2 6 CoBox FL User Guide ...

Page 33: ... Confirm th 2 4 3 Test the IP Address 1 Click the Ping icon The Ping Device window displays y in the window indicating that the IP make sure the unit is properly assigned is valid for the particular network segment you are working with If you are not sure check with your systems administrator rn to the Device Installer window Figure 7 Ping Device Window 2 Confirm that Reply received messages displ...

Page 34: ...e and configure it 1 Click the Search the network for devices icon T displays he Search Network window ss Class C is the default ic 4 Clic 5 Click Figure 8 Search Network Window 2 Select the PC Network Cla 3 Cl k the Start Search button A list of all active units displays k the Save button A confirmation message displays OK 2 8 CoBox FL User Guide ...

Page 35: ... window The DeviceInstaller devices in the group including the unit you are setting up The hardware address and firmware release number for the unit display ure 9 Devices in a Group you can manage configure the unit so that it works with the serial device on the ork Fig Now netw CoBox FL User Guide 2 9 ...

Page 36: ...Manager Page on page 3 4 To configure the unit via a Telnet session click the Telnet to Device icon The Setup Mode window displays For Telnet Configuration see Using a Telnet Connection on page 3 10 3 Continue with the appropriate configuration procedure described in the next chapter Note The Get Configuration icon on the Device Management window allows you to save a configuration locally on your ...

Page 37: ...hosts use colons betwe octets and some use dashes All Windows hosts use dashes arp s 191 12 3 77 00 20 4a xx xx xx Note For the ARP command to work on Windows 95 the ARP table on the PC must have at least one IP address defined other than its own 2 If you are using Windows 95 type ARP A at the DOS command prompt to verify that there is at least one entry in the ARP table If the local machine is th...

Page 38: ...d 8 bits no parity 1 stop bit no flow control 2 To enter Setup Mode cycle the unit s power power off and back on After power up the self test begins and the red Diagnostic LED starts blinking You have one second enter three lowercase x characters ode is to hol Note The easiest way to enter Setup M emulation while powering up the unit 3 At this point the screen display is the same as when you use a...

Page 39: ... configuration menus in this section show a typical device and all of the possible configuration options Your device may have different configuration options 3 1 Configuring via Web Browser You must configure the unit so that it can communicate on a network with your serial device For example you must set the way the unit will respond to serial and network traffic how it will handle serial packets...

Page 40: ...ll active units displays 3 Click the Save button Click OK for the confirmation message Click the Back button 4 Click the Manage device configuration icon to open the Device Management window 5 For Web configuration click the Web Configuration icon to start your browser A small Web Configuration window appears showing the IP address elections lready has an IP address see Methods of Assigning the IP...

Page 41: ...ge 3 10 for a summary of the menu selections guration on page 3 26 in a file on of a specific device see Set Configuration on page 3 27 be configured by reading a configuration file and sending the information to the Universal Device Serve 7 To Get device configuration information see Get Confi Configuration information can be read from a device and saved 8 To Set the configurati A device can devi...

Page 42: ... also Factory Settings2 for devices with two serial channels Update Settings Channel 1 also Channel 2 for devices with two serial channels vigate to sub pages where you can configure server configuration parameters later in this chapter e your settings Figure 11 Lantronix We Web Manager 3 0 has the f Unit Configuration Server Properties Port Properties Factory Settings1 Tech Support FTP Site Back ...

Page 43: ... following dialog box This page contain the Server Configuration and the Port Configuration settings These are static settings read from the device Note The following screen shots represent the web page shown wh s en the device is loaded with cbxw300 cob firmware CoBox FL User Guide 3 5 ...

Page 44: ... re Te net Password u l Mode via a Telnet connection to port 9999 The password is limited to 4 characters An net Setup Mode window Note No password is required to access the Setup Mode window via a serial connection 12 Server Properties Configuration on the Web Browser In the Telnet Password field enter a password to prevent unauthorized access to the Setup enhanced password setting of 16 characte...

Page 45: ...ar are UDP Datagram Mode Enable Disable UDP Datagram Type User selectable Incoming Connection Accept unconditional Accept Incoming DTR Inactive Never accept incoming Response Nothing quiet Character response Startup No active startup with any character with active DTR Inactive with CR 0x0D only Manual Connection Autostart Modem Mode Remote IP Address user selectable Remote Port user selectable Loc...

Page 46: ...gorithm Enable Disable Idle Time Force transmit 12 ms Force transmit 52 ms Force Transmit 250 ms Force Transmit 5000 ms Trailing Characters None One Two Send Immediate After Sendchars Enable Disable Send Define2 Byte Sequence Enable Disable Send Character 01 User Selectable Send Character 02 User Selectable 3 8 CoBox FL User Guide ...

Page 47: ...utton w eb pag r downloading new firmware manuals and other files The C ill link u to the Contact Information page 3 ttings C ttings button to send all changed settings to the device heck for CTRL D ort Password Ena Disconnect E Disable ble Disable eln isab Selectable 3 3 4 Technical Support Several buttons provi upport button to l ect links to Technical Support functi ctly to the La ill link you ...

Page 48: ...enu click Run and type the followin x x x x is the IP address and 9999 is the unit s fixed network co telnet x x x x 9999 Note Be sure to include a space between the IP address and 9999 2 Click OK 3 The Lantronix Universal Device Server window displays Lantronix Universal Device Server Serial Number 7218033 MAC address 00 20 4A 72 46 71 Software version 04 5 011025 ess Enter to go into Setu Pr p M...

Page 49: ...00 I F Mode Port 10001 Remote IP Adr Co Security enabled not IAP firmware Name not IAP firmware enabled enabled disabled el 1 4C Flow 00 none Port 00000 nnect Mode C0 Disconn Mode 00 e 00 n rt settings not IAP firmware rity Your choice Flush Mod Expert TCP Keepalive 0s not IAP firmware Change Setup 0 Server configuratio 1 Channel 1 configuration 5 Expe 6 Secu 7 Factory defaults 8 Exit without save...

Page 50: ...n while powering 10 At this point the screen display is the same as when you use a Telnet connection continue with a serial port login go to Using a Telnet Connection on page 3 T s basic network parameters The following parameters are displayed when y ation 000 000 Set Gateway IP Address N r of Bits for Host Part 0 default 00 config password N Methods of Assigning the 2 3 ation about IP addressing...

Page 51: ...bits Class C 8 bits The unit prompts for the number of is displayed in standard decim example 255 255 255 0 w th ave ara ters lay Table 4 Standard IP Ne Network Class Host Bits Netm sk a A 24 255 0 0 0 B 16 255 255 0 0 C 8 255 2 5 255 0 5 Table 5 Netmask Examples Netmask Host Bits 255 255 255 252 2 255 255 255 248 3 255 255 255 240 4 255 255 255 224 5 255 255 255 192 6 255 255 255 128 7 255 255 25...

Page 52: ...HCP name If you do not change the DHCP name and you are using an IP of 0 0 0 0 then the DHCP name will default MAC address shown on the label on the bottom side of the unit For example if the MAC address is 00 20 4A 12 34 56 then the default DHCP name is C123456 2 Custom DHCP nam using an IP address of 0 0 0 0 then the last option in Server configuration will be Chan DHCP device name The Change DH...

Page 53: ...1 C0 ress 000 000 000 000 00000 00 Flush DisCo 00 00 00 00 00 rial device such as a modem must agree on a speed or baud rate to es are 300 600 1200 2400 4800 9600 default tion Valid baud rat d 115200 bits per 3 6 2 I Mode e is a bit coded byte that you enter in hexadecim e Note Se ary to Hexadecimal Conversion Tabl e Options I F Mode Option 7 6 5 4 3 2 1 0 RS 232C 1 0 0 RS 422 485 1 0 1 RS 485 2 w...

Page 54: ...pass characters to h st 05 o 3 6 4 Port Number The setting represents the source port numb r in TCP connections and is the number used to identify the channel for remote initiating connections ef lt s ttin r Port 1 is 10001 R ol wi re e po numbers e D au e g fo ange 0 65535 except for the f lo ng serv d rt Port Numbers Reserved for 1 1024 Reserved well known ports 9999 Telnet setup 14000 14009 Res...

Page 55: ... With any character 0 1 0 0 With active DTR 1 0 0 1 0 With CR 0x0D only 1 1 0 0 Manual connection 0 1 0 0 Autostart 0 1 0 1 Datagram Type Directed UDP 1 1 0 0 Modem Mode Full Verbose 1 0 1 1 0 Without Echo 0 0 1 1 0 1 character Response 1 0 1 1 1 Manual Connection When you use manual connection you are not required to enter the entire IP address if the IP is already configured as the remote IP add...

Page 56: ...ns to the serial port if Connect Mode is set to C6 no echo D6 echo with full verbose or D7 echo with 1 character response I ers o th ech f ll of the characters entered in command mode it d to echo data that is transferred Quiet Mode no echo refers to the modem not ending an answer to the commands received or displaying what was typed ast is sent d Datagram Type When selecting this option you will ...

Page 57: ...t ATH Hangs up the connection Entered as ATH ATS0 n n 0 disables the ability to make a connection from the netwo the serial port n 1 9 enables the ability to make a connection from the network to the serial port n 1 9 is invalid Enables port or disables connections from the network going to the serial rk to ATEn Enables or disables character echo and responses n 0 disables character echo and respo...

Page 58: ...nnel port password 2 1 Hard disconnect 3 0 Disabl 1 e hard disconnect State L 4 1 ED off with connection Disconnect with EOT D 5 1 1 The CoBox will send the Termina 2 A password is required for a conne l Type upon an outgoing connection ction to the serial port from the network e the disconnection will turn off instead of blink enabled from a high state to a low state then the network connection t...

Page 59: ... Serial to Network Clear with a connection that is initiated from the UDS to the network 1 Clear with a connection initiated from t network to the UDS he 1 Clear when the network connection to or from the UDS is disconnected 1 Output Buffer Network to Serial Clear with a connection that is initiated from the UDS to the network 1 Clear with a connection initiated from the network to the UDS 1 Clear...

Page 60: ... 00 if specific function not needed Table 14 Pack Control Options Option 7 6 5 4 3 2 1 0 Idle Time Force transmit 12ms 0 0 Force transmit 52ms 0 1 Force transmit 250ms 1 0 Force transmit 5sec 1 1 Trailing Characters None 0 0 One 0 1 Two 1 0 Send Characters 2 Byte Send Character Sequence 1 Send Immediately After Send chars 1 Idle Time Idle time to Force transmit defines how long the unit should wai...

Page 61: ...arameter to set an inactivity timeout The connection is dropped if there is no activity on the serial line before the set time expires Enter time in the following format mm ss where m is the number of minutes and s is the number of seconds To disable the inactivity timeout enter 00 00 3 6 12 Send Characters You can enter up to two characters in hexadecimal representation in the parameters sendchar...

Page 62: ...u set security over the dedicated network or over the seria serial connections only not on the Web l meone else could capture these Disable TFTP Firmware Update N Disable Port 77FEh N Disable Web Server N Enable Enhanced Password N 3 8 1 Disable SNMP Note This option does not appear with CoBox FL IAP This setting allows you to disable the SNMP protocol on the unit for security reasons 3 8 2 SNMP C...

Page 63: ...ntronix com The les remote configuration You can configure the unit by using DeviceInstaller Web pages Telnet or serial configuration The Y s option disables remote configuration and Web pages default setting is the N No option which enab Ye disables many of the GUI tools for configuring the Device Server bedded Web Page Configuration tool ge uration tool that is built into the unit ord to s et ac...

Page 64: ...ion file filename cfg To get the configuration information cl read and saved in ears ick the Get Configuration icon button on the Device Management window The following dialog app The Device IP Address is shown in the first field This is the device selected in the DeviceInstaller main window In the Configuration File field click the Open File button to select a filename for the configuration file ...

Page 65: ...ces To set the configuration of a device from a saved file click Configurat configuration information The Device IP Address is shown in the first field This is the device selected in the DeviceInstaller main window In the Configuration File field click the Open File button to select a configuration file Click the Set button and the file information is read and stored in the device CoBox FL User Gu...

Page 66: ......

Page 67: ...ol you MUST reference the Once you load a vendor specific protocol that protocol since many of the setup and c features such as web pages may no associated protocol manual for setup and configuration information The menu options shown in this manual are for Standard Tunnel Protocol 4 2 Reloading Protocol Firmware There are several ways to update the unit s internal operational code ROM via DeviceI...

Page 68: ...viceInstaller to install it 1 Download the updated firmware files from www lantronix com or ftp lantronix com and ler window displays store them in a subfolder on your computer 2 Click the Start button on the Task Bar and select Programs DeviceInstaller Device Installer The Device Instal ler Figure 14 Device Instal 4 2 CoBox FL User Guide ...

Page 69: ...6 roup including the unit you are updating ure 15 Search Network W Click the Start Search button A list of Click the Save button A confirmation message displays Click OK 7 Click the Back button to return to the Device Installer window The Device Installer window now lists all of the devices in the g ure 16 Devices in a Group Fig CoBox FL User Guide 4 3 ...

Page 70: ...rocess is complete the File upgrade successful message displays 12 Click OK Note You can update the unit s Web pages by clicking the Upgrade Web files COB icon Though it would be rare to need to update both the firmware and Web pages at the same time you can do so by clicking the Update the firmware files and Webpages in one step icon 4 2 2 Via TFTP To download new firmware from a computer 1 Use a...

Page 71: ...alog Box The it aded and stored 4 2 3 V To distri ver the network power reset after the firmware has been loaded and stored rface using TFTP or Device un performs a power reset after the firmware has been lo ia Another Unit bute firmware to another unit o 1 Enter the host unit s Monitor Mode see Monitor Mode on page 7 1 2 Send the firmware to the receiving unit using the SF command where x x x x i...

Page 72: ...R2 EXE and the ROM file into the same dir hat irectory and type filename This will create a filename hex file that you can load via the serial port Note Do not switch off the power supply during the update A loss of pow reprogramming will result in a corrupt program image and a a co To download firmware from mputer via the unit 1 Enter Monitor Mode vi 2 Download the firmwar 3 Select Send Text File...

Page 73: ...s are m with ial d nec er a ll the work in between to keep data flowing smoothly u anel Eliminates the need for y the re No understanding of ho velop networking software Everything is totally tra he a Redirects up to 255 CO TCP Provides raw mode dat ha e or modify the data being sent Supports Windows 2000 Windows NT4 0 and Windows Easy to install and even easier to configure Ethernet Manager etwor...

Page 74: ...e ct CD or it can be downloaded 5 1 1 Install DeviceC 1 Insert the product CD m Manager your CD ROM will automatically start and display the main windo If the CD does not lau a Click the Start b Enter ch automatically omm exe e g Figure 19 UDS CoBox Main Window 2 Click the DeviceComm Manager button The installation wizard window displays Respond to the installation wizard prompts Note DeviceComm M...

Page 75: ...re on your system IDL An IP address and port number have been associated with the COM port E CO the device server NNECTED An active TCP IP connection exists between the COM port and 3 Sele e Edit button ct one of the DISABLED ports by clicking on it and then press th 4 Select the Enabled check box 5 Type in the IP address of the target device server in the Host section CoBox FL User Guide 5 3 ...

Page 76: ...ecting the latency delay that an g the Read Network Tim Networ ut va e situation Network latency varies depending h idea of the delay at num d a given time by pinging the at the time column You may also find the evice server from the PC and lookin ert helpful See y c indows OS documentation for more de th s Both ping and t cert are DOS prompt commands 8 Click Ok to close the Settings dialog b sh t...

Page 77: ...ays ensure that the physical connections power cable network cable and seria Note Some unexplained errors m Make sur s e that your unit IP address is unique 1 1 echnical Su ort ed in this chapter or if you are unable to fix Check our knowle w lantronix com support com t E mail support lantronix E mail us a Call us at 800 422 70 949 453 71 44 D 98 In 949 450 7226 F Our phone li open f 30 PM e din w...

Page 78: ...ess Enter to go into Setup Mode error described below displayed Now when you Telnet to the UDS CoBox the connection fails When you Telnet into port 1 on the UDS CoBox you are only assigning a temporary IP address When you Telnet into port 9999 and do not press Enter quickly the UDS CoBox will reboot causing it to lose the IP address Telnet back into Port 1 Wait for it to fail then Telnet to port 9...

Page 79: ...pter or the Quick Start for the LED flashing sequence patterns Call Lantronix Technical Support if the blinking pattern indicates a critical error The S UD CoBox is not mu cating with the serial s attached to The most likely reason is the wrong serial settings were The serial settings for the serial device and the UDS CoBox must com ni device it i chosen match The default serial settings 9600 Baud...

Page 80: ...en you try to upgrade the ware Firmware field but make sure to use the correct setting in the field of Existing Firmware field Whe Man UDS UDS CoBox router that you are using on the rt UDS CoBox n connecting to the Web ager within the CoBox the message No Your computer is not able to connect to port 30718 77FEh on the Make sure that port 30718 77FEh is not blocked with any Connection With CoBox ne...

Page 81: ... 1 Entering Monitor Mode Via the Serial Port To enter Monitor Mode locally 1 Follow the same principles used in setting the serial configuration parameters see Configuring via 2 Instead of typing three x keys however type zzz or xxl to enter Moni Type yyy or yyy to enter Monitor 3 A 0 prompt indicates that you have successfully entered Monitor Mode 7 1 2 Entering Monitor Mode Via the Network Port ...

Page 82: ... Device Server s IP configuration RS Reset Resets the Device Server s power SI xxx xxx xxx xxx Send Set IP Address Remotely assign an IP address to a Device Server where xxx xxx xxx xxx is the IP address and yyyy yyy yyyy yyy is the two part identification number at the bottom of the label converted to yyy yyy yyy yyy decimal and written twice QU Quit Exit diagnostics mode G0 G1 Ge Get configurati...

Page 83: ...ion F7 Fir f ytes of the firmware image and 4 bytes device information and serial number The first 16 bytes of the firmware image contain the software type offset 4 5 and checksum offset 14 15 The last two bytes of the device information contain the serial number mware First 16 b In ormation F8 Query for Setup Record None The Device Server responds with the F9 block below F9 Configuration Readback...

Page 84: ...e only heard on the subnet on which they are generated No reply is sent by the Device Server which P address after the block is received 5 50 00 00 2A 12 81 ss of the node with serial number o 129 0 1 2 restarts using the new I N contain th number Example all in Hex Next 4 bytes have 49 50 2D 63 45 54 5 00 01 02 to be the new IP IP addre address 42 18 set t FD Set Config and IP uration Address cha...

Page 85: ... via another Device p recor rly c ured Device Server via 1 Configure a master Device Server with the desired parameters 2 Enter Monitor Mode on the master Device Server see Monitor Mode on page 7 1 3 At the prompt enter GC followed by a carriage return The Device Server will respond with its setup record in Intel Hex format 4 Copy the setup record into a text file and save it for future use master...

Page 86: ... the F9 datagram which es its setup record 3 usly saved setup record from ost PC via UDP 8 so a number of ways to send a setup record to a Device Server Send a previously saved setup record via Monitor Mode easiest method Send the setup record of a properly configured Device Server to another Device Server on the network Send a previously saved setup record from a host PC via UDP on the network 5 ...

Page 87: ...adding all byte values including length address and ty ield zero FF e 01 length 00 address 00 00 checksum FF 0805F one byte value 80 Hex for address 0020 32 decimal or communication with the node the following block types are defined 1 Configure a master Device Server with the desired parameters and place it on the network 2 Place 3 Enter Monitor Mode with netw Monitor Mode on page 7 1 4 At the pr...

Page 88: ...calculator records The IP address in the record bytes 0 to 3 will be ignored unless the UDP FD command is being used 8 2 4 Calculating the Checksum s mentioned in Table 20 Bloc Typ s above the last two characters of an Intel Hex setup ecord represent a checksum of lue it can rep e da a h ne in th e u exadecimal va nt a a 0 2 he checksum is calculated omplement of g t e ue of th a n ote Do not incl...

Page 89: ... Bit 7 Reserved 0 Bit 6 Set 1 for AUI 0 for 10BASE T Bits 5 0 Reserved 0 CoBo ic o only x M r 06 Number of host bits for subnetting if 0 matching standard netmask for Class A B C is used 07 Reserved 0 08 11 Telnet configuration password 0 if no use t d 12 15 Gateway IP address 0 0 0 0 if not used 16 63 48 byte Channel 1 parameters param er setup Cha ne s a le E 4 et n l 1 ee T b Channel Parameters...

Page 90: ...high low high 28 Connect Mode see Table 27 Connect Mode Options 29 Disco ptions nnect Mode see Table 28 Disconnect Mode O 30 Disco sed nnect w inactivity time out minutes 00 if unu 31 Disco s 00 if unused nnect w inactivity time out second 32 33 Characters to trigger send immediately sendchar 34 Flush mode see Table 29 Flush Mode Options 35 Pack Control see Table 30 Pack Control Options 36 47 Rese...

Page 91: ...CoBox FL requires you to choose the correct setting in the IF mode le demonstrates how to build some common Interface Mode settings The following tab Table 24 Common Interface Mode Settings Option Binary Hex RS 232C 8 bit No Parity 1 stop bit 1 0100 1100 4C RS 232C 7 bit Even Parity 1 stop bit 1 0111 1000 78 RS 485 2 Wire 8 bit No Parity 1 stop bit 1 0100 1111 4F RS 422 8 bit Odd Parity 2 stop bit...

Page 92: ...3 4 Flow Control Flow control sets the local handshaking method for stopping serial input output Generally flow control is not required if the connection is used to pass a blocked protocol with block 19200 or less Use the following table to s sizes less than 1k ACK NAK and or speeds of select Flow Control option Table 26 Flow Control Options Op on ti Hex No w flo control 00 XO X ntro 01 N OFF flow...

Page 93: ...cept incoming with DTR 0 1 0 Accept unconditional 1 1 0 Response Nothing qui 0 et Char ter r ac e D disconn N cha 1 s C ponse nn co unrea ble Startup No a e star 0 0 0 0 ctiv tup With any char 0 0 0 1 acter With active D 0 0 1 0 TR 1 With CR 0x0 0 0 1 1 D only Man conne 0 1 0 0 ual ction Auto rt 0 1 0 1 sta Dat y agram T pe Dire UDP 1 1 0 0 cted Modem Mode Full bose 1 0 1 1 0 Ver Without Echo 0 0 ...

Page 94: ...work connection to or l port the state ED will turn stead of blink 5 or Hex e Both lnet mode and Disconnect with EOT must be enabled nect with pro will only be detected going fro serial port to the network 6 on the Co ct t s from a high state to low state th network connection to or from the will drop N able 3 to H l Convers The CoBox A password the Terminal T d for a connectio upon an outgoin o t...

Page 95: ...l Clear with a conne s initi the networ 1 ction that i ated from the UDS to k Clear w to the U ith a conne work 1 ction initiated from the net DS Clear when the net tio connec 1 work connec n to or from the UDS is dis ted Alternate Packi m trol ng Algorith Pack Con Enable 1 N able 3 H le 8 k Co Alternate packing algorithm sett led in Fl de the following table to s Contr T Pack C tion ote See T 5 B...

Page 96: ...etwo ddr Class A F 3rd and bytes are the host irst byte 2nd 4th Class B F d 4t tes are the host irst 2 bytes 3rd an h by Class C First 3 bytes 4th byte is the host In most network examples the host portion of the address is set to zero Table 32 Available IP Addresses Class Reserved Available A 0 0 0 0 127 0 0 0 1 0 0 0 to 126 0 0 0 B 128 0 0 0 191 255 0 0 128 1 0 0 to 191 254 0 0 C 192 0 0 0 223 2...

Page 97: ...es the numb s to from he IP address he network or h t sections The D Server p or th er of h to be entered and then calculates the netmask which is disp stan imal tion fo example 255 5 0 when saved paramet ispla Table 33 St IP Network Netmasks packets directly only to hosts on their own sub subnets are sent to a router on the local network 8 4 3 Host Portion he host p ion of the IP a ess is a un nu...

Page 98: ...operate the Device Server on an intranet you should u f the d sub etwo y ur network strator wi que ions abo dres 8 4 7 Netw rk RFCs F info mation about IP addresses refe ollow umen ch can b located on th e Web using one of wing ries o RFC Intern Stan ard Sub roce RFC Assigned Numbers RFC Internet Nu RFC Addre ation fo Ne s and ternet not be c ed to the rnet you use any ress ted to th se one o ut I...

Page 99: ...inary hexadecim Table 35 Binary to Hexadecimal Conversion Table ptions represented nary value must b into a complete c ted to a hexadecimal repr represent sentation as a i exadecimal digits have v er alues ranging from 0 to F which are rep ese for 11 etc T a to a hexadecimal epresentation the nd exadecimal num convert values fro to al Decimal Binary Hex 0 0000 0 1 0001 1 2 0010 2 3 0011 3 4 0100 4...

Page 100: ... DTR None quiet CR 0x0D 43 With DTR None quiet 44 Manual connection With DTR None quiet Autostart 45 With DTR None quiet UDP 4C With DTR Character 50 No active startup With DTR Character 51 Any character With DTR Character 52 Active DTR With DTR Character 53 CR 0x0D With DTR Character Manual connection 54 With DTR Character 55 Autostart With DTR Character N A UDP Unconditionally None quiet No acti...

Page 101: ...ne quiet Hostlist 63 CR 0x0D With DTR None quiet ction H N A Manual conne ostlist With DTR None quiet Autostart Hostlist 65 With DTR None quiet UDP Hostlist N A With DTR Character ve startup Hostlist N A No acti With DTR Character aracter Hostlist 71 Any ch With DTR Character Hostlist 72 Active DTR With DTR Character Hostlist 73 CR 0x0D With DTR Character Manual connection Hostlist N A With DTR Ch...

Page 102: ...or when you em lation ct Mode Options for Modem Emulation he following co de options a use mod emu Table 37 Conne Accept Incoming Connections Response Hex Never Ech 16 o Never With 6 out echo Never 1 ch 7 aracter response With DTR Ech 56 o With DTR With 46 out echo With DTR 1 ch 47 aracter response Unconditionally Ech D6 o Unconditionally With C6 out echo Unconditionally 1 ch se C7 aracter respon ...

Page 103: ...Enable Enable C0 Enable Enable Enable D0 Enable Enable Enable Enable Enable E0 Enable Enable Enable Enable F0 Enable Enable 1 Enable Enable Enable ble 11 Ena Enable Enable Enable 21 Enable Enable Enable 31 Enable Enable Enable Enable 41 Enable Enable Enable 51 Enable Enable Enable Enable Enable 61 Enable Enable Enable Enable 71 Enable Enable Enable Enable 81 Enable Enable Enable Enable 91 Enable E...

Page 104: ... Enable Enable Enable Disable Enable E8 Enable Enable Disable Enable F8 Enable Disable ble 9 Ena Enable Disable Enable 19 Disable ble Enable 29 Ena Disable Enable Enable 39 Enable Enable Disable Enable 49 Enable Disable ble 59 Enable Ena Enable Disable Enable Enable 69 Enable Disable ble Enable 79 Enable Ena Enable Disable Enable 89 Enable Disable Enable 99 Enable Enable Enable Disable ble Enable ...

Page 105: ... Passive connection Enable A0 Active connection ction Enable B0 Passive conne Disconnect Enable C0 Active connection Enable D0 Disconnect Passive conne Disconnect ction Enable E0 Active connection ction Enable F0 Passive conne Disconnect Active co tion 1 nnec Active connection Active co tion 11 nnec Passive connection Active co tion 21 nnec Active connection Active co ction 31 nne Passive connecti...

Page 106: ...isconnect Passive connection 42 Active connection Disconnect Passive connection 52 Passive connection Passive connection 62 Disconnect Active connection Passive connection Passive connection 72 Disconnect Passive connection Enable 82 Active connection Passive connection Enable 92 Passive connection Passive connection Enable A2 Active connection Passive connection Passive connection Enable B2 Disco...

Page 107: ...Passive connection Enable B3 Disconnect Active connection Passive connection Enable C3 Active connection Disconnect Active connection Passive connection Enable D3 Passive connection Disconnect Active connection Passive connection Enable E3 Active connection Passive connection Disconnect Active connection Passive connection Enable F3 Disconnect 4 Active connection Disconnect 14 Passive connection D...

Page 108: ... Passive connection Disconnect Active connection Disconnect 65 Active connection Passive connection Disconnect Active connection Disconnect 75 Active connection Disconnect Enable 85 Active connection Active connection Disconnect Enable 95 Passive connection Active connection Disconnect Enable A5 Active connection Passive connection Active connection Disconnect Enable B5 Disconnect Active connectio...

Page 109: ...ble A6 Active connection Passive connection Passive connection Disconnect Enable B6 Disconnect Passive connection Enable C6 Disconnect Active connection Passive connection Disconnect Disconnect Enable D6 Passive connection Disconnect Passive connect Disconn ion ect Enable E6 Active connection Passive Passive connection Disconnect Disconnect connection Enable F6 Active connection 7 Passive connecti...

Page 110: ...nnection Passive connection Enable 97 Disconnect Passive connection Active connection Passive connection Enable A7 Disconnect Active connection Passive connection Active connection Passive connection Disconnect Enable B7 Disconnect Active connection Passive connection Enable C7 Disconnect Active connection Disconnect Active connection Passive connection c Enable D7 Dis onnect Passive connec Passiv...

Page 111: ...485 7 Even 1 79 RS 422 485 7 Even 2 F9 RS 422 485 7 Odd 1 59 RS 422 485 7 Odd 2 D9 RS 422 485 8 No 1 4D RS 422 485 8 No 2 CD RS 422 485 8 Even 1 7D RS 422 485 8 Even 2 FD RS 422 485 8 Odd 1 5D RS 422 485 8 Odd 2 DD RS 422 485 2 Wire 7 No 1 4B RS 422 485 2 Wire 7 No 2 CB RS 422 485 2 Wire 7 Even 1 7B RS 422 485 2 Wire 7 Even 2 FB RS 422 485 2 Wire 7 Odd 1 5B RS 422 485 2 Wire 7 Odd 2 DB RS 422 485 ...

Page 112: ...e No 52ms 11 2 Byte Sequence No 250ms 12 2 Byte Sequence No 5sec 13 2 Byte Sequence 1 12ms 14 2 Byte Sequence 1 52ms 15 2 Byte Sequence 1 250ms 16 2 Byte Sequence 1 5sec 17 2 Byte Sequence 2 12ms 18 2 Byte Sequence 2 52ms 19 2 Byte Sequence 2 250ms 1A 2 Byte Sequence 2 5sec 1B 1 Byte Sequence No 12ms Yes 20 1 Byte Sequence No 52ms Yes 21 1 Byte Sequence No 250ms Yes 22 1 Byte Sequence No 5sec Yes ...

Page 113: ...2 Byte Sequence No 250ms Yes 32 2 Byte Sequence No 5sec Yes 33 2 Byte Sequence 1 12ms Yes 34 2 Byte Sequence 1 52ms Yes 35 2 Byte Sequence 1 250ms Yes 36 2 Byte Sequence 1 5sec Yes 37 2 Byte Sequence 2 12ms Yes 38 2 Byte Sequence 2 52ms Yes 39 2 Byte Sequence 2 250ms Yes 3A 2 Byte Sequence 2 5sec Yes 3B CoBox FL User Guide 9 15 ...

Page 114: ......

Page 115: ...o 127 x x x 7 different networks of this class exist These have a very large number of potential 16 777 216 Example 10 0 0 1 network 10 host 0 0 1 10 2 Class B Network Only 12 connected devices up to IP address 128 0 x x to 191 255 xxx xxx These networks are used for large company networks Every network can consist of up to 65 534 devices Example 172 1 3 2 network 172 1 host 3 2 10 3 Class C Netwo...

Page 116: ...P address differently f A B C A netmask defines how many bits from the IP address ar rom the standard defined by classes e to be taken as the network y bits are to be taken as the host section When the number of host bits is l section and how man entered the CoBox FL calculates the netmask The netmask is displayed in standard decima dot notation Network Bits Host Bits Netmask Class A 8 24 255 0 0 ...

Page 117: ...t and w subnetworks below These network numbers have been reserved for such networks If you have any questions about IP assignment consult your Network Administrato Class A 10 x x x Class B 172 16 x x Class C 192 168 0 x 10 8 Network RFCs For more information regarding IP addressing see the following documents These can be located on the World Wide Web using one of the directories or indices Inter...

Page 118: ......

Page 119: ...9 254 255 254 has been explicitly reserved for AutoIP enabled dev Auto Negotiate Clause 28 of the IEEE 802 3u standard specifies a MAC sublayer for the identification of the speed and duplex mode of connection being supported by a device Support of this feature is optional for individual vendors Auto sense Ability of a 10 100 Ethernet device to interpret the speed or duplex mode of the attached de...

Page 120: ...y over a single channel Ethernet Token Rin Baud Unit of signal frequency in signals per second Not synonymous with bits per second since signals can represent m Binaries Binary machine readable forms of programs that have been compiled or assembled As opposed to Source language forms of programs Binary Characteristic of having only two states such as current on and current off The binary numb uses...

Page 121: ...s center surrounded by insulating materials and an Collision ult of two network nodes transmitting on the same channel at the same time The transmitted n Detect A signal indicating that one or more stations are contending with the local station s transmission The signal is sent by the Physical layer to the Data Link layer on an Ethernet IEEE 802 3 node Broadband Ne A network that uses multiple car...

Page 122: ...r can be added to a network without the hassle of manually assigning it a unique IP address Many ISPs essing for dial up users nt and A dedicated standalone system that manages communications activities for other computers Techniqu bytes of a packet before forwarding or filtering it This process is faster than looking at the whole packet bu CSMA CD while it is transmittin Data Link A logical conne...

Page 123: ...some of its data while the Download The transfer of a file or information from one network node to another Generally refers to transfer a file from a big node such as a computer to a small node such as a terminal server o End N A node such as a PC that can only send and receive information for its own use It cannot route and forward information to another node Etherne The most popular LAN technolo...

Page 124: ... as the source of the data its destination and length Process whereby an Ethernet switch or bridge reads the contents of a packet and then finds that the packet does not need to be forwarded drops it a filtering rate is the rate at which a device can receive packets and drop them with Firmware Alterable programs in semipermanent s Forwarding Process whereby an Ethernet switch or bridge reads the c...

Page 125: ...g ActiveX Java JavaScript and cookies IEEE 802 3 Institute of Electrical and Electronic Engineers standard that defines the CSMA CD and 10BASE T Ethernet implementations Internet links many government university and research sites It provides E mail remote login and file rvices IP Address See Network Address Ethernet defined SQE signal quality test function Hertz Hz Generally a node on a n HTTP Sh...

Page 126: ...an interface card placing corrupted data on the network Or an error er second Kermit r file transfer and terminal emulation program Network a data communications system consisting of a group of interconnected Local Area Transport a Digital Equipment Corporation proprietary network communication protocol d on the idea of a relatively small known number of hosts on a local network AT will not work o...

Page 127: ...loped for Fast Ethernet in IEEE 802 3u specification The Fast Ethernet equivalent to the AUI in 10 Mbps Ethernet allowing different types of Fast Ethernet via a common interface cables to a faceplate as for a telephone n a center mounted one A Port M either used standalone or attached to standard Ethernet cable Logical L A temporary connection between source and destination nodes or between two pr...

Page 128: ...h translating or resolving text style names into es NetWare A Novell developed Network Operating System NOS Provides file and printer sharing among puters PCs Each NetWare network must have at least one file server and dependent on connecting to and logging into the file server The file server modem fax servers disk file servers etc MOP Maintenance Operations Protocol a DEC protocol used for remot...

Page 129: ...e over the network Node Any intelligent device connected to the network This includes terminal servers host computers and inals that are directly connected to the network A node hardware address erating System the software for a network that runs in a file server and controls access to les and other resources from multiple users It provides security and administrative tools Novell s etWare Banyan ...

Page 130: ...nodes only or a configuration requiring a separate physical connection between each pair of nodes Port The physical connector on a device enabling the connection to be made Port Multiplier A concentrator providing connection to a network for multiple devices PostScript A printer display protocol developed by Adobe Corp PostScript is an actual printing and programming language to display text and g...

Page 131: ...les while restoring signal timing and waveforms Ring A network topology in which the nodes are connected in a closed loop Data is transmitted from node to node around the loop always in the same direction RMON SNMP based standard for reporting various network conditions RMON has 10 different management groups which provide detailed information about a network Rlogin Rlogin is an application that p...

Page 132: ...egments are bound together in a single collision domain Hubs produce this type of configuration where only one node can transmit at a time SLIP Serial Line Internet Protocol a protocol for running TCP IP over serial lines SNA Systems Network Architecture IBM s layered protocols for mainframe communications SNMP Simple Network Management Protocol allows a TCP IP host running an SNMP application to ...

Page 133: ...n addresses T Connector A T shaped device with two female and one male BNC connectors TCP IP Transmission Control Protocol TCP and Internet Protocol IP are the standard network protocols in UNIX environments They are almost always implemented and used together and called TCP IP Telnet Telnet is an application that provides a terminal interface between hosts using the TCP IP network protocol It has...

Page 134: ...ghput The amount of data transmitted between two points in a given amount of time e g 10 Mbps Token The character sequence or frame passed in sequence from node to node to indicate that the node controlling it has the right to transmit for a given amount of time Token Ring Developed by IBM this 4 or 16 Mbps network uses a ring topology and a token passing access method Topology The arrangement of ...

Page 135: ...al versions exist e g the Berkeley version UTP Unshielded twisted pair one or more cable pairs surrounded by insulation UTP is commonly used as telephone wire Wide Area Network WAN A network using common carrier transmission services for transmission of data over a large geographical area Workgroup Switching Configuration in which a number of users are connected to an Ethernet network via a switch...

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