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MultiFRAD 200-Series

Models FR220 & FR220/V2

User Guide

Содержание MultiFRAD FR220

Страница 1: ...MultiFRAD 200 Series Models FR220 FR220 V2 User Guide ...

Страница 2: ...ake changes from time to time in the content hereof without obligation of Multi Tech Systems Inc to notify any person or organization of such revisions or changes Record of Revisions Revision Description A Manual released covers software revision 3 00 All pages at revision A 5 19 99 PATENTS This Product is covered by one or more of the following U S Patent Numbers 5 301 274 5 309 562 5 355 365 5 3...

Страница 3: ...ration Installing Your Software 20 Ethernet Setup 22 WAN Port Setup 24 Data Ports Setup 25 DLCI Setup 26 Voice Fax Channel Setup 26 Detect and Map Your DLCIs 29 Build Your Phone Directory Database 32 Chapter 4 MultiFRAD Software Introduction 36 Before You Begin 36 MultiFRAD Configuration 37 Changing IP Parameters 38 Changing IPX Parameters 40 Spanning Tree Setup 42 Filtering 42 Statistics 43 IP St...

Страница 4: ...rt Introduction 74 Limited Warranty 74 On line Warranty Registration 74 Tech Support 75 Recording MultiFRAD Information 75 Contacting Tech Support via E mail 75 Service 76 The Multi Tech BBS 77 To log on to the Multi Tech BBS 77 To Download a File 77 About the Internet 78 Appendixes Appendix A Cabling Diagrams 80 Voice Fax Channel Connectors 80 Trunk Cable 81 Appendix B Regulatory Information 82 C...

Страница 5: ...Chapter 1 Introduction and Description ...

Страница 6: ...er your existing frame relay network which has traditionally been data only To access this free voice and fax communication all you have to do is connect the FR220 V2 to your telephone equipment and then to your existing frame relay connection Once configured the FR220 V2 allows voice and fax to travel down the same path as your traditional data communications Both of these MultiFRADs have two dat...

Страница 7: ...ngs are detailed followed by the installation procedure in which each cable is connected to the MultiFRAD and the unit is powered on Chapter 3 Software Loading and Configuration Chapter 3 details the software loading and configuration procedures The MultiFRAD software is windows based numerous configuration options are available and are described in this chapter Chapter 4 MultiFRAD Software Chapte...

Страница 8: ...k COL Collision indicator lights when a collision is in progress that is when two nodes are transmitting packets at the same time COMPOSITE TRUNK RCV Receive indicator blinks when the trunk is receiving data CTS Clear To Send indicator lights when the trunk is ready to transmit data CD Carrier Detect indicator lights when the MultiFRAD detects a carrier signal on the trunk line LNK The composite L...

Страница 9: ...fax Channel XMT Transmit indicator blinks when voice packets are being transmitted to the composite link RCV Receive indicator blinks when voice packets are being received from the composite link XSG Transmit Signal indicator lights when the FXS configured Channel is off hook the FXO configured Channel is receiving a ring from the PBX or the M lead is active on the E M configured Channel i e the M...

Страница 10: ...cables are used on the MultiFRAD Ethernet Channels Command Port and Trunk RS232 V 35 The back panel connectors are shown in Figure 1 3 and described in the following groups VOICE FAX CHANNEL 2 E M FXO FXS VOICE FAX CHANNEL 1 E M FXO FXS ETHERNET RS232 COMMAND 10BASE T I O GND CHANNEL 2 RS232C V 35 TRUNK RS232C V 35 CHANNEL 1 RS232C V 35 POWER ...

Страница 11: ...tion Channel 1 V 35 Shunt Position Channel 2 V 35 Shunt Position Figure 1 4 Shunts The MultiFRAD has separate shunts for the composite link or trunk and both data Channels Both the default RS232 Shunt Position and the V 35 position for the Trunk are identified The V 35 positions for the Channel shunts are also shown To change the position of a shunt refer to the V 35 Shunt procedure in Chapter 2 ...

Страница 12: ...NRZ NRZI encoding interframe timer Special APSM mode to allow Data port and LAN traffic muxing over a single PVC Ethernet Port Routing Protocols IP and IPX and bridging all others Ethernet Interface 10Base T twisted pair RJ 45 connector Special APSM mode to allow LAN traffic and Data port muxing over a single PVC Command Port Single 19 2K bps asynchronous Command Port with DB25 female connector Tr...

Страница 13: ...Chapter 2 Installation ...

Страница 14: ...minals unless the phone line has been disconnected at the network interface 5 Use caution when installing or modifying phone lines 6 Avoid using a phone other than a cordless type during an electrical storm There may be a remote risk of electrical shock from lightning 7 Do not use the phone to report a gas leak in the vicinity of the leak 8 To reduce the risk of fire use only No 26 AWG or larger T...

Страница 15: ...ltiFRAD Quick Start Guide Inspect all items Figure 2 1 before proceeding with the installation If any item appears to be damaged do not power up the unit contact Multi Tech s Technical Support personnel for advice Refer to Chapter 6 If no damage is observed configure the MultiFRAD using the information in the rest of this chapter MADE IN U S A MADE IN U S A Figure 2 1 Unpacking the FR220 V2 ...

Страница 16: ...ection Cables to Channel Devices T1 DSU 56K DSU or Comparable Link Device VOICE FAX CHANNEL 2 E M FXO FXS VOICE FAX CHANNEL 1 E M FXO FXS ETHERNET RS232 COMMAND 10BASE T I O GND CHANNEL 2 RS232C V 35 TRUNK RS232C V 35 CHANNEL 1 RS232C V 35 POWER PBX Voice Fax Channels 1 2 Connections Figure 2 2 Cable Connections 2 Connect one end of a DB25 female cable to the Trunk connector Figure 2 2 Connect the...

Страница 17: ...annel 1 E M connector on the back of the MultiFRAD and the other end to the trunk Note Appendix a has a pinout diagram for the E M back panel connector on the MultiFRAD 6 Repeat the above step to connect the remaining telephone equipment to Voice Fax Channel 2 on your MultiFRAD 7 Connect the power supply to a live AC outlet then connect the power supply to the MultiFRAD as shown in Figure 2 2 The ...

Страница 18: ... upside down and remove the cabinet mounting screw at the center back of the cabinet 3 Turn the MultiFRAD right side up then slide the base out the rear of the cabinet Note To change a jumper position lift the jumper plug up off the jumper block then move it to the new position ensuring that the middle jumper of the jumper block is centered on the E M type number 1 3 4 or 5 See Figure 2 3 Jumper B...

Страница 19: ...Chapter 3 Software Loading and Configuration ...

Страница 20: ...ing on the location of your floppy disk drive in the Command Line field and then click OK Win95 98 NT users click Start Run In the Run dialog box type or click the down arrow and choose a setup or b setup depending on the letter of your floppy disk drive and then click OK 4 The MultiFRAD 200 Series Setup Welcome screen is displayed Click Next to continue 5 Follow the on screen instructions to inst...

Страница 21: ...ed enabling you to designate the COM port of the PC that is connected to your MultiFRAD On the Select Port field click the down arrow and choose the COM port of your PC COM1 COM4 that is connected to your MultiFRAD Click OK to continue 8 The Setup Complete screen is displayed Click Finish to continue 9 The following message is displayed ...

Страница 22: ...ltiFRAD will learn the IPX network numbers from the file server If you select No for Auto Learn record the network numbers assigned by the network file server for each of the four frame types Raw 802 3 LLC 802 2 EthernetII Type II SNAP in the spaces provided below RAW 802 3 Frames Network Number _____________ LCC 802 2 Frames Network Number ______________ TYPE_II Frames Network Number ____________...

Страница 23: ... ___ ___ ___ ___ IP Address Mask ___ ___ ___ ___ Frame Type TYPE II SNAP WAN Port ___ ___ ___ ___ IP Address Mask ___ ___ ___ ___ Remote Address ___ ___ ___ ___ 18 The default Ethernet IP Address has to be changed to your unique LAN address Enter an acceptable unique IP address for the Ethernet port 19 Change the default Subnet Mask and Frame Type to the values you have assigned to your LAN port 2...

Страница 24: ...up If this is a Synchronous mode connection click OK and proceed to step 24 For an Asynchronous PPP connection choose Asynchronous mode then disable Direct Connect Lease Line and select either Answering or Dialing Modem Type becomes active select your modem type from the drop down list If it is not listed select Manual Modem and configure your modem separately For a Dial up Dialing connection sele...

Страница 25: ...elect the Encapsulated option when a synchronous data channel and LAN traffic are combined on a single frame relay DLCI Use the Hub option to route DLCIs to other MultiFRADs that are connected to the Data Ports The Hub function can be used to add data channels or to set up an Internet connection through a router connected to one of the data channel ports If your MultiFRAD is going to be connected ...

Страница 26: ...x Channel Setup 29 The Voice Fax Channel setup dialog box is displayed Its three tabs are used to define the voice fax channel interface voice coder fax parameters and regional phone parameters tone pairs for each channel Configure each channel for the type of interface you are connecting to The Interface tab defaults to Channel 1 in the Select Channel field 30 The Interface group defaults to FXS ...

Страница 27: ...le the Auto Call feature this channel will not have to be entered in the Phone Directory Database you will have a direct line whenever you pick up the receiver Note After configuring a given channel 1 or 2 you can copy that channel s configuration to the other channel by selecting the other channel in the Duplicate To group and clicking the Copy button Everything on the Interface tab will be copie...

Страница 28: ...up dialog box is displayed as the setup configuration is written to the MultiFRAD 37 After the setup is written to the MultiFRAD the unit reboots 38 Check that the BOOT LED on the MultiFRAD is Off after the download is complete This may take several minutes as the MultiFRAD reboots 39 Win3 1 users you are returned to your Program Manager where the MultiFRAD 200 Program Group and Program Item Windo...

Страница 29: ... your desktop click Programs MultiFRAD 200 MultiFRAD Configuration The main menu is displayed Click Frame Relay 41 A Frame Relay dialog box is displayed stating MultiFRAD has detected Management Type to be Annex D Hence it has set Management type to Annex D from Annex A The Management Types are Annex A Annex D or LMI Any one of them could appear in this dialog box Click OK 42 A second Frame Relay ...

Страница 30: ... WAN number you want to use 45 To map a data port to this DLCI click to enable the Data Port Data Port 1 or Data Port 2 in the Port Mappings group that you want to associate with this DLCI 46 Click the Committed Information Rate text box in the Settings in Bits second group and enter the CIR value your service provider supplied for this DLCI 47 Click the Excess Burst Rate Be text box in the Settin...

Страница 31: ...31 Chapter 3 Software Loading and Configuration Click OK 53 The main menu is displayed ...

Страница 32: ...ation Information group enter a unique phone number for the destination voice fax channel in the Phone Number field For example phone number 101 This number does not have to be a standard number with 7 or more digits The Description field for the phone number is optional In the following example we describe this phone number as Jerry s Desk The Voice Channel field defaults to Channel 1 To change t...

Страница 33: ...ed to the Phone Directory Database dialog box which now displays the phone number 101 in the Station Phone Number list and your other information in the Station Information group 57 Repeat steps 55 and 56 for each additional phone number You should enter one phone number for each remote channel that you want to call When you are finished click OK 58 You are returned to the main menu Click Download...

Страница 34: ...ox is displayed as the setup configuration is written to the MultiFRAD 61 After the setup is written to the MultiFRAD the unit reboots 62 Check that the BOOT LED on the MultiFRAD is Off after the download is complete This may take several minutes as the MultiFRAD reboots 63 You are returned to the main menu Your MultiFRAD is operational at this time ...

Страница 35: ...Chapter 4 MultiFRAD Software ...

Страница 36: ... setup utility enables you to change the method by which you access the MultiFRAD i e through a direct connection of a PC to the Command Port on the MultiFRAD or via your Internet or LAN connection to the LAN port on the MultiFRAD The Remote User Data Base utility enables you to prepare a database of information concerning your remote users you can add and remove users from the database or edit in...

Страница 37: ...ents such as the type of frame relay management selected and which PVCs are active The status bar located at the bottom of the main menu displays MultiFRAD status e g Running the date that the unit was configured the type of connection on the command port e g if the PC connected to the command port is using its serial port to communicate with the MultiFRAD or if the PC is communicating with the Mu...

Страница 38: ...ameters for your Ethernet port with the IP Address that was established during software installation From the Ethernet IP Setup dialog box you can switch to the to either the WAN IP Setup dialog box or the Advanced IP Setup dialog box by clicking the respective tab The WAN IP Setup dialog box enables you to disable or enable IP routing on the WAN port change the port IP Address mask or remote IP a...

Страница 39: ...ute filters and Static Routes In most cases you should not have to change the value of any timer default TTL reassembly time out RIP response time or RIP route aging time If you are using Default Routing disable RIP based routing then enter the IP host address of the next hop The MultiFRAD will automatically use the IP route table to resolve the host address to a port number ...

Страница 40: ...g Spoofing in the Bandwidth Optimization group has proven effective under certain circumstances with Citrix clients The IPX WAN Setup dialog box lets you to enable or disable IPX routing on the WAN port change the network number for the WAN port enable or disable NetBIOS change the default RIP and SAP timers and optimize the bandwidth If the WAN port is configured for frame relay this dialog box l...

Страница 41: ...h ends of the Permanent Virtual Circuit PVC The Advanced IPX Setup dialog box controls the routing of the protocol enables or disables auto learn of Ethernet network numbers specifies the broadcast name of the MultiFRAD and defines any IPX filtering by filter type port number and IPX address If bridging of IPX packets is desired IPX routing must be disabled and frame type support for the frame typ...

Страница 42: ...WAN and blocking should be set up on any additional WANs While in operation the MultiFRAD will automatically transition from blocking to forwarding and vice versa as necessary Filtering Clicking the Filters button on the Spanning Tree Setup dialog box displays the Spanning Tree Filtering screen Here you can toggle the packet Default Action from forward to filter Clicking the Add button displays th...

Страница 43: ...it management frames approximately every ten seconds trying to establish communication with the provider s switch If the unit is sending frames but not receiving any this may be an indication of a problem with the link device or the frame relay network Statistics in the frame relay dialog box show the actual number of management frames sent and received and can also indicate a link or frame relay ...

Страница 44: ...has a full range of services These statistics are primarily informational and their use as a troubleshooting tool will be contingent on the applications running in the upper layers For instance if you were having problems connecting to MultiFRAD s Web server you would look under the TCP section to make sure connections are being established If not perhaps the Web server is not enabled Or if you we...

Страница 45: ...dialog box displays information regarding the selected STP port for example the number of frames discarded or forwarded Spanning Tree transParent STP bridging is the method of bridging used by the MultiFRAD as specified in an IEEE 802 1D telecommunications standard Enabling the spanning tree algorithm in addition to spanning tree bridging provides for a loop free environment with redundant paths i...

Страница 46: ...m communicating with the MultiFRAD from your SNMP manager WAN Statistics The WAN Port Statistics dialog box provides statistical information regarding the MultiFRAD s WAN port including the number of packets transmitted received and to transmit and the number of bytes transmitted received This dialog box monitors the traffic on the MultiFRAD s composite link WAN port The Statistics that fall into ...

Страница 47: ...ause for alarm unless they are incrementing rapidly and steadily The Link Details section records the number of times the frame relay link between the MultiFRAD and the network has gone up become active or gone down become inactive The Link Details provide a more general picture of the status of communication between the MultiFRAD and the frame relay network DLCI Statistics The DLCI Statistics dia...

Страница 48: ...ll display another screen of channel statistics and various hardware signals RTS CTS DSR DCD DTR and Xon Xoff status This second screen also displays buffer utilization percentage and receive flow control time These statistics may indicate that either the data channels or more likely the devices attached to them are being driven harder than they should be Excessive buffer utilization and or receiv...

Страница 49: ...al connected time Clicking the Clear button will clear all the statistics on this dialog box Call Progress Statistics FR220 V2 Only The Call Progress Statistics dialog box displays statistical information for the current activity such as a call in progress A drop down list enables you to select which channel you want to monitor After a channel is selected all the relevant data for the current acti...

Страница 50: ...mode is Answering or Dialing If the Frame Relay Device Driver is enabled the MultiFRAD encapsulates data on its composite link for transmission over a frame relay network Enabling this device driver requires additional frame relay configuration by clicking Frame Relay on the MF200 main menu If the PPP SLIP device driver is enabled the MultiFRAD is configured for point to point operation for transf...

Страница 51: ...Note if there are no entries in the User database any User Name and Password combination from a peer will be authenticated For MultiFRAD to MultiFRAD connections authentication normally is not used and the User Name and User Password fields are left empty Enable SLIP if you are using this older protocol for communication on a dial out WAN port Either PPP or SLIP can be used on a dial out port howe...

Страница 52: ...f those verifications 2 Change the Full Status Enquiry Interval to affect how often DCLI Status is updated This parameter defines how often the MultiFRAD will send a request for DLCI status information along with the Link Integrity Verification request The default value is to include such a request every sixth time the link integrity is checked A value less than every sixth request will enable fas...

Страница 53: ...umber window You do not have to enter the leading zeros When you click the OK button the new DLCI appears in the DLCI s window in the Frame Relay DLCI dialog box When a DLCI has just been detected or if you have just created a new DLCI then no protocols or data ports are yet mapped to it The default Congestion Management mode CIR and Be are displayed You should verify these default settings with t...

Страница 54: ...d stop sending data when congestion is indicated Stop and Start or gradually reduce throughput during times of congestion Throttle Up and Down Compression can be enabled on a per DLCI basis by clicking on the Others Compression box If compression is required it must be enabled on both the local and remote ends of the PVC To map a protocol to a DLCI e g 17 return to the MF200 main menu and then cli...

Страница 55: ... s say we also want to map a data channel to DLCI 17 The data ports that are already mapped to other DLCIs are grayed out In our example lets map data port 3 to DLCI 17 Simply click Port 3 in the Data Port Mappings group and an X appears in the box at the left of Port 3 Now we have both data port 3 and IP WAN address 192 168 2 1 mapped to DLCI 17 The MultiFRAD enables multiple sources of data to b...

Страница 56: ...ct that DLCI on the Priority Setup dialog box and select the desired Priority Level from the drop down list and click OK After that for frame relay operation the software checks for priority and then processes the packets on that DLCI accordingly Packet priority can be disabled by selecting None on the Priority Setup dialog box The Priority Setup dialog box for PPP has an option for Port Based pri...

Страница 57: ...nfigure Synchronous then configure the MultiFRAD to match your synchronous device The Data Port Configuration dialog box also enables you to configure both data channels independently For example Port 1 could be connected to a Multi Tech MultiMux MMH904 and configured with the following options Data Port Mode set to APSM Advanced Priority Statistical Multiplexer Synchronous Configuration Internal ...

Страница 58: ... 1 to 16 and a default of 5 The value for Max Dial Digits can be increased without affecting the existing phone directory database If you increase the value in this field it merely means that any new phone numbers that are added to the database can have more than five digits FXO Interface To use an FXO interface you have to select in the Regeneration group the dialing type pulse or DTMF i e tone u...

Страница 59: ...ion to this new site you could enable the Auto Call option for channel 2 and then add in the DLCI number and remote channel number If a site is removed from your calling network and you had Auto Call enabled you can merely select the local channel and disable the Auto Call option here on the Interface tab Voice Fax FR220 V2 only The Voice Fax tab controls the voice coder Fax settings DTMF gain and...

Страница 60: ...ed in the country or region currently selected In addition to Australia Central America Chile Europe France Japan UK and USA there is a Custom selection with defaults identical to USA that will make the Custom button active Clicking the Custom button enables you to edit the Tone Pairs and establish custom sets of tone pairs for Dial Tone Ring and Busy on a Custom Tone Pair Settings dialog box The ...

Страница 61: ...er you enter does not have to be a conventional 7 digit phone number for example it does not have to be 717 5565 This number can be a single digit or several digits except it cannot be longer than the entry in the Max Dial Digits field in the Dialing Options group on the Channel Setup dialog box Clicking the Add button displays the Add Phone Entry dialog box where you can assign a new Phone Number...

Страница 62: ...ation group when the edited phone number entry is highlighted The Delete button on the Phone Directory Database dialog box enables you to remove any existing phone number and its related information from the database Clicking the selected number then clicking the Delete button displays the following dialog box for confirming the deletion Clicking Yes displays the Phone Directory Database dialog bo...

Страница 63: ...l receive the Traps from the Multifrad should be entered in the IP Address field in the Trap Manager group The Community Name of the SNMP Manager receiving the Traps can be a maximum of 19 characters and is case sensitive The default Port Number of the SNMP Manager receiving the Traps is 162 The MultiFRAD currently supports a maximum of two community users at a time and they can be assigned either...

Страница 64: ...p parameters the start date time and end date time for statistics logging and enable Analyze All or analyze only certain statistics that you enable check on this dialog box Here too you can designate the output file name select specific port data or DLCI data for analysis by clicking the appropriate buttons and making your selections and then start the analysis process by clicking the Analyze butt...

Страница 65: ...Chapter 5 Remote Configuration and Management ...

Страница 66: ...nfiguration as you see fit Once the configuration is changed you can download the new configuration to the remote MultiFRAD Refer to the Modem Based Remote Configuration Procedure in this chapter to remotely configure a MultiFRAD 1 At the remote site remove the serial cable from the PC to the Command Port connector on the back panel of the MultiFRAD 2 At the remote site connect a special cable Rem...

Страница 67: ...the remote MultiFRAD 8 The Reading Setup dialog box is displayed 9 The MultiFRAD 200 Setup menu is displayed This is the main menu for the remote MultiFRAD Refer to the online Help provided with your software for a description of each dialog box and field within a dialog box 10 After you have changed the configuration of the remote MultiFRAD click Download Setup to update the configuration The rem...

Страница 68: ...he MultiFRAD software on the local PC When installed click Start Programs MultiFRAD 200 Configuration Port Setup or double click the Configuration Port Setup icon in the MultiFRAD 200 program group 3 The MultiFRAD 200 Setup dialog box is displayed Verify that the Communication Type field is set IP In the MultiFRAD IP Address field enter the IP Address of the remote MultiFRAD 4 Click OK when you ar...

Страница 69: ...varies between applications the configuration functions mirror those of the MultiFRAD software For more information on MultiFRAD software refer to Chapter 4 MultiFRAD Software Telnet A typical Telnet client application is described next The MultiFRAD has a built in Telnet Server that enables Telnet client PCs to access and configure the MultiFRAD In addition the MultiFRAD can be remotely accessed ...

Страница 70: ...se the MultiFRAD Configuration option 1 on the MultiFRAD Telnet Server menu you must enter your password to display the Main Menu MultiFRAD Configuration Main Menu Selecting Option 1 displays the MultiFRAD Configuration Main Menu which enables you to view and change parameters on the protocol stacks high and low level device drivers enable or disable the supported servers configure MUX data ports ...

Страница 71: ...e rights of the user read write or read only it is possible to view the current parameters and statistics of the MultiFRAD as well as configure and download setup changes to the MultiFRAD You can access MultiFRAD Configuration by entering the IP address of the unit in the Address line of your Web browser In this example the IP address is 192 168 2 14 The following screen appears Click the word Log...

Страница 72: ...ts over the unit All subsequent users will have read only rights and some of the options in the Web interface will be inactive to them i e will not be linked From the MF2000 Configuration menu you can access current settings view statistics or configure and download a new setup to the MultiFRAD ...

Страница 73: ...Chapter 6 Warranty Service and Tech Support ...

Страница 74: ...products which have been damaged by lightning storms water or power surges or which have been neglected altered abused used for a purpose other than the one for which they were manufactured repaired by the customer or any party without MTS s written authorization or used in any manner inconsistent with MTS s instructions MTS s entire obligation under this warranty shall be limited at MTS s option ...

Страница 75: ...AD including LED indicators screen messages diagnostic test results DIP Switch settings problems with a specific application etc Use the space below to note the status ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ______________________...

Страница 76: ...ment if the MultiFRAD is out of warranty Check with your technical support specialist for the standard repair charge for your MultiFRAD if possible note the name of the technical support specialist with whom you spoke If you need to inquire about the status of the returned product be prepared to provide the serial number of the product sent Send your MultiFRAD to this address MULTI TECH SYSTEMS IN...

Страница 77: ...stion 5 Select a file transfer protocol by typing the indicated letter such as Z for Zmodem the recommended protocol 6 If you select Zmodem the transfer will begin automatically If you select another protocol you may have to initiate the transfer yourself In most datacomm programs the PAGE DOWN key initiates the download 7 When the download is complete press ENTER to return to the File Menu 8 To e...

Страница 78: ... via the Internet you can contact Tech Support via e mail at the following address http www multitech com _forms email_tech_support htm Multi Tech s presence includes a Web site at http www multitech com and an ftp site at ftp ftp multitech com The ftp server mirrors the Multi Tech BBS ...

Страница 79: ...Appendixes ...

Страница 80: ...AND PORT Connector DB9F RJ 45 LAN Cable ETHERNET 1 2 3 4 5 6 7 8 10Base T 10Base T RJ 45 Pin Circuit Signal Name 1 TD Data Transmit Positive 2 TD Data Transmit Negative 3 RD Data Receive Positive 4 RD Data Receive Negative Voice Fax Channel Connectors 1 2 3 4 5 6 7 8 2 3 4 5 2 3 4 5 Pin Connections E M Description FXO Description FXS Description 1 M 2 E 2 N C 2 N C 3 T1 3 Ring 3 Tip 4 R 4 Tip 4 Ri...

Страница 81: ...TX CLOCK A RECEIVE CLOCK A EXTERNAL TX CLOCK B RECEIVE CLOCK B TRANSMIT CLOCK A TRANSMIT CLOCK B The MultiFRAD RS232C interface circuits have been designed to meet the electrical specificaitons given in EIA Electronic Industries Association RS232C and CCITT Consultative Committee International Telegraph and Telephone V 24 Standards When configured for V 35 interface operation on the link the V 35 ...

Страница 82: ...approved by the party responsible for compliance could void the user s authority to operate the equipment Industry Canada This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada Fax Branding Statement The Telephone Consumer P...

Страница 83: ...ify the customer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary 5 The phone company may make changes in its facilities equipment operations or procedures that could affect the operation of the equipment If this happens the phone company will provide advance notice in order for you to make necessary modifications in order t...

Страница 84: ... be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility phone lines and internal metal...

Страница 85: ... a packet This package is then passed down to the next layer and the process continues Each layer adds information to the message packet and this information is read by the corresponding layer in the receiving system s protocol stack In this way each protocol layer communicates with its corresponding protocol layer to facilitate communication The physical layer defines the physical characteristics...

Страница 86: ...d commands control codes for managing the session and data Information is placed in packets by various communications subsystems of the transmitting system then framed into a serial bit stream and sent across the communications link One of the main reasons for packetizing and framing information is that errors on the communication link only affect a small discernible part of the transmission which...

Страница 87: ... a numeric address that identifies both a network and a local host or node on the network This address is written as four numbers separated by dots for example 148 1 9 1 The assignment of addresses is arbitrary within a company or organization but if the company plans to connect with the Internet it is important to obtain registered addresses from an outside agency to conform with international ad...

Страница 88: ...rom one to 127 Class B networks use the first two bytes of the IP address for the network number and the last two bytes for the host number The first byte must have a value from 128 to 191 Class C networks use the first three bytes of the IP address for the network number and the last byte for the host number This scheme provides for a very large number of different networks each with up to 255 ad...

Страница 89: ...Glossary ...

Страница 90: ... possible characters The extended ASCII file provides 255 characters Asynchronous Transfer Mode ATM A very high speed method of transmission that uses fixed size cells of 53 bytes to transfer information over fiber also known as cell relay AT Commands A standard set of commands used to configure various modem parameters establish connections and disconnect The AT is used to get the attention of th...

Страница 91: ...ccess control protocols A bridge forwards a frame to another bridge based on the medium access control MAC address 3 In the connection of local loops channels or rings the equipment and techniques used to match circuits and to facilitate accurate data transmission Buffer A temporary storage register or Random Access Memory RAM used in all aspects of data communications which prevents data from bei...

Страница 92: ...Mx Port A serial communications port on a PC Congestion A network condition where there is too much data traffic The ITU I 233 standard defines congestion management in terms of speed and burstiness Congestion notification The function in frame relay that ensures that user data transmitted at a rate higher than the CIR are allowed to slow down to the rate of the available network bandwidth Consecu...

Страница 93: ...r A software module that interfaces between the Operating System and a specific hardware device i e color monitors printers hard disks etc Also known as a device driver Drop and Insert The process where a portion of information carried in a transmission system is demodulated Dropped at an intermediate point and different information is included Inserted for subsequent transmission DTE Data Termina...

Страница 94: ...enabling ease of access and flat rate calls anywhere in the foreign exchange area Foreign Exchange Office FXO provides local telephone service from a CO outside of foreign to the subscriber s exchange area In simple form a user can pick up the phone in one city and receive a tone in the foreign city Connecting a POTS telephone to a computer telephony system via a T1 link requires a channel bank co...

Страница 95: ...ed protocol each machine only worries about sending data to the next step in the route Internetwork Packet Exchange IPX A NetWare communications protocol used to route messages from one node to another IPX packets include network addresses and can be routed from one network to another An IPX packet can occasionally get lost when crossing networks thus IPX does not guarantee delivery of a complete ...

Страница 96: ...DCs unless the T1 circuit is completely intra LATA Inter LATA T1 circuits are made up of a combination of Access and Long Haul facilities Local Management Interface LMI A specification for frame relay equipment that defines status information exchange Local Loop A transmission path typically twisted pair wire between an individual subscriber and the nearest public telecommunica tions network switc...

Страница 97: ...F incorporates least cost routing equal cost routing and load balancing Outage The measure of the time during which a circuit is not available for use due to service interrupt Outage is the complement of circuit availability 100 minus available outage Out of band Signaling that is separated from the channel carrying the information i e the voice data video signal is separate from the carrier signa...

Страница 98: ...odulation PPM 2 Transmissions of analog information in digital form through sampling and encoding the samples with a fixed number of bits Pulse dialing One of two methods of dialing a telephone usually associated with rotary dial phones Compare with tone dialing Q Quantizing The process of analog to digital conversion by assigning a range from the contiguous analog values to a discrete number R Ra...

Страница 99: ...via a modem and use a handset to talk to another user at the same time over the same connection The alternative making a second call can be expensive or even impossible The uses for SVD are telecommuting videoconferencing distant learning tech support etc Stop Bit One of the variables used for timing in asynchronous data transmission Depending on the devices each character may be trailed by 1 1 5 ...

Страница 100: ...the US Department of Defense to link dissimilar computers across dissimilar and unreliable LANs Terminal The screen and keyboard device used in a mainframe environment for interactive data entry Terminals have no box which is to say they have no file storage or processing capabilities Terminal Adapter TA An ISDN DTE device for connecting a non ISDN terminal device to the ISDN network Similar to a ...

Страница 101: ...g wherein a logical connection is established between two devices at the start of transmission All information packets follow the same route and arrive in sequence but do not necessarily carry a complete address W Wide Area Network WAN 1 A network that provides communication services to a geographic area larger than that served by a local area network or a metropolitan area network and that may us...

Страница 102: ... 22 Excess Burst Rate 30 F Frame Relay Access Device 6 Frame Relay Statistics 46 Frame Types 22 23 EthernetII Type II 22 LLC 802 2 22 SNAP 22 Front Panel Description 7 8 LEDs 8 101 G Glossary 89 I Indicators Channels Clear To Send CTS 8 Receive RCV 8 Transmit XMT 8 V35 V35 8 Ethernet Collision COL 8 Link LNK 8 Receive RCV 8 Transmit XMT 8 Trunk Carrier Detect CD 8 Clear To Send CTS 8 Receive RCV 8...

Страница 103: ... 48 Shunts Channels 1 and 2 11 Trunk RS232 11 SNAP 22 SNMP Statistics 45 Software 36 Description 36 Spanning Tree Setup 42 Specifications Command Port 12 Data Ports 12 Electrical Physical 12 EtherNet Port 12 Requirement 12 Trunk Port 12 Statistics Data Port Statistics 48 Frame Relay Statistics 46 IP Statistics 44 IPX Port Statistics 44 SNMP Statistics 45 STP Spanning Tree Port Statistics 45 WAN St...

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