Digital Link DL3100 Uživatelská příručka

T3 Access Multiplexer DL3100 User’s Guide Part 098-20590-02 Rev. CNovember 1998

x DL3100 User’s Guide—November 1998 Displaying the Event History 5-22 Event History Menu Parameters 5-23 Monitoring T3MB Bandwidth and Connections 5

5-26 DL3100 User’s Guide—November 199852. Execute the emulation program on the PC and set it up to match the DL3100 comm port settings.3. To begin dow

Monitoring and Managing the DL3100 5-275¥ Reset Entire Node Database to Factory DefaultsThis operation resets the unitÕs database to its original fact

5-28 DL3100 User’s Guide—November 19985Database backed up to EEPROM.To cause the DL3100 to perform automatic backups after each conÞrmed change, selec

6-16Diagnosing and Troubleshooting the DL31006The DL3100 performs a self-test upon power-up. During the self-test, messages will appear in the front-p

6-2 DL3100 User’s Guide—November 19986If you receive one of these messages, it means that the DL3100 has an internal error. Contact Technical Support

Diagnosing and Troubleshooting the DL3100 6-36Figure 6-1 T3MB Tests MenuTo initiate a loopback:▼ From the T3MB Tests Menu, select DTE or Network Loopb

6-4 DL3100 User’s Guide—November 19986of the data is performed by the DL3100. This minimizes any impact that the DL3100 might have on the data so that

Diagnosing and Troubleshooting the DL3100 6-56Figure 6-2 HVDB Tests MenuNET/DTE LoopbackThe NET/DTE loopback is a bi-directional loopback that loops t

6-6 DL3100 User’s Guide—November 19986▼ Select DTE/Network Loopback and use the space bar to toggle to Off. With Off in the display, select ConÞrm and

Diagnosing and Troubleshooting the DL3100 6-76DTE LoopbackTo initiate a DTE loopback from the front panel, press ENTR when DTE Loopback appears in the

Table of Contents xi What You See 7-3 Editing a Parameter 7-4 Preparing for the Initial Configuration 7-5 Required Information 7-5 Keeping a Record 7

6-8 DL3100 User’s Guide—November 19986DL3100 ProblemsTable 6-1 is a list of problems with suggested solutions.Table 6-2 Troubleshooting Guide Problem

Diagnosing and Troubleshooting the DL3100 6-96The connected DTE device shows intermittent errors.Run a DTE/NET loopback to verify the physical connect

6-10 DL3100 User’s Guide—November 19986

7-17Using the Front Panel Interface7The front panel interface lets you¥ View and change the DL3100 conÞguration from the ConÞguration Menu.¥ Run diagn

7-2 DL3100 User’s Guide—November 19987Figure 7-1 shows the DL3100 front panel interface. Figure 7-1 Front Panel InterfaceThe front panel interface ca

Using the Front Panel Interface 7-37Throughout this chapter you will see examples of how these keys are used.Some menu items are more complex than oth

7-4 DL3100 User’s Guide—November 19987To see another submenu, you select it using the up or down arrow and press ENTR. Figure 7-3 Configuration MenuEdi

Using the Front Panel Interface 7-57Figure 7-4 Edit Mode5. Edit the ID one character at a time.Use the up and down arrows to change a character.6. Pre

7-6 DL3100 User’s Guide—November 19987Keeping a Record We suggest you keep a written record of each unitÕs conÞguration. For a copy of the conÞguratio

Using the Front Panel Interface 7-77The ConÞguration submenus are shown below.Figure 7-6 Configuration SubmenusThe Node Config SubmenuThe items in the N

xii DL3100 User’s Guide—November 1998 External Clock Specifications A-1 Data Interface A-2 Interface Connectors A-2 Communication Port (ASCII) A-3 Co

7-8 DL3100 User’s Guide—November 19987Use the up and down arrows to move from item to item. To activate edit mode, press ENTR.Node Config Menu Paramete

Using the Front Panel Interface 7-974. To edit the ID, follow the procedure given in ÒEditing a ParameterÓ on page 7-4.5. Enter the Node Comm Port sub

7-10 DL3100 User’s Guide—November 19987Configuring the Data PortsYou use the HSDB (1, 2, or 3) ConÞg and/or the HVDB (1, 2, or 3) ConÞg Menus to conÞgu

Using the Front Panel Interface 7-117¥ ClockLets you select either Full Clock or Divided Clock. ¥ ServiceLets you place the HSDB In Service or Out of

7-12 DL3100 User’s Guide—November 199874. Press ENTR to activate edit mode. The display starts to blink.To take no action and move to the next item, p

Using the Front Panel Interface 7-137The data in the Display Menu is a subset of the parameters that are available on the terminal interface.You can m

7-14 DL3100 User’s Guide—November 19987RAM FAILUREROM CHKSUM FAILUNIT RESETDATABASE RESETPOWERSUPLY ERRFAN FAILUREBATTERY FAILURERT CLOCK ERROREXTERNA

Using the Front Panel Interface 7-157The parameters that you can view from the Network Statistics Menu are shown next.Figure 7-10 Network Statistics M

7-16 DL3100 User’s Guide—November 19987¥ CUR345Counts the number of errors in the current interval for that performance register.¥ TOTL.679Counts the

Using the Front Panel Interface 7-177Figure 7-11 Statistics MenuFor each of these parameters (with the exception of CLR HSDB/HVDB/STAT) you can view t

xiiiList of FiguresFigure 1-1 Node/T3 Main Menu 1-3Figure 1-2 Unit ConÞguration 1-4Figure 1-3 T3MB ConÞguration 1-5Figure 1-4 HSDB Main Menu 1

7-18 DL3100 User’s Guide—November 19987¥ TOTL.9679Counts the number of seconds in error or the number of errors for that performance statistic over th

Using the Front Panel Interface 7-197Figure 7-12 Test MenuYou can perform the following tests from the front panel:Network Tests¥ Net Loopback¥ DTE Lo

7-20 DL3100 User’s Guide—November 19987During a Test During a test, you will observe the following:¥ The TEST LED on the front panel turns red, remind

A-1ADL3100 Technical SpeciÞcationsAThis appendix covers various technical speciÞcations.T3 Network Port InterfaceTable A-1 lists the network port inte

A-2 DL3100 User’s Guide—November 1998AData InterfaceTable A-3 lists the data interfaces.Interface ConnectorsTable A-4 lists the interface connectors f

DL3100 Technical Specifications A-3ACommunication Port (ASCII) Table A-5 lists the communication ports for ASCII.Communication Port (SNMP) Table A-6 li

A-4 DL3100 User’s Guide—November 1998ADiagnosticsTable A-7 lists the diagnostic tests and test indicators.PowerThe power requirements are as follows:1

DL3100 Technical Specifications A-5AEnvironmentalTable A-9 discusses environmental information.Regulatory Table A-10 gives regulatory information.Downl

A-6 DL3100 User’s Guide—November 1998AAlarmsThe alarms are on the DL3100 are:¥ Common Alarm Indicator LEDs¥ Common Visual Alarm Contact through a DE-9

DL3100 Technical Specifications A-7AFan FilterThe fan Þlter should be inspected annually (at a minimum) and cleaned, if necessary. The Þlter can be cle

xiv DL3100 User’s Guide—November 1998Figure 4-7 T3MB ConÞguration Menu 4-16Figure 4-8 T3MB TDL ConÞguration MenuÑC-bit Parity 4-19Figure 4-9 T3M

A-8 DL3100 User’s Guide—November 1998AT3 Main BoardINS GreenAmberRedModule is in service and functioning normallyModule is operating normally but is o

DL3100 Technical Specifications A-9ADL3100 Cable Model NumbersTable A-13 gives cable model numbers for the DL3100.Factory Default ConfigurationThe facto

A-10 DL3100 User’s Guide—November 1998AT3MB Alarm Thresholds Major MinorBipolar Violations 1 x 10 -4 1 x 10 -6P-bit Parity Errors 1 x 10 -4 1 x 10

DL3100 Technical Specifications A-11AConfiguration WorksheetUse this worksheet to keep a written record of your conÞguration. Unit ConfigurationNode Numb

A-12 DL3100 User’s Guide—November 1998ANode IP Address Node IP Subnet MaskTrap IP Address Read Community StringWrite Community String Trap Community S

B-1BDL3100 Connector and Pin AssignmentsBThis appendix covers connector and pin assignments for the DL3100.DB-25 to V.35 Data Port Connector Pin Assig

B-2 DL3100 User’s Guide—November 1998B50-Pin HSSI Data Port Connector Pin Assignments (DL1404)The pin assignments for the 50-Pin HSSI Connector pin as

G-1GGlossary GABAMA designation for 22 gauge, 110 ohm, plastic insulated, twisted pair Western Electric cable normally used in central ofÞces.AIS (Ala

G-2 DL3100 User’s Guide—November 1998GbandwidthThe data-carrying capacity of a transmission medium, usually measured in Hertz (Hz), which equals cycle

Glossary G-3GCCCITTInternational Telegraph and Telephone Consultative Committee. central ofÞce (CO)The phone company switching facility or center; usu

List of Figures xvFigure 5-12 T3MB Bandwidth & Connections Menu 5-24Figure 5-13 Software Download Menu 5-25Figure 5-14 Delete Entire Node Co

G-4 DL3100 User’s Guide—November 1998GCRC (Cyclic Redundancy Check) An error checking scheme used to check the received data. The CRC bits within the

Glossary G-5GDCE (Data Circuit-Terminating Equipment)Equipment that is either a part of the network, an access point to the network, a network node, o

G-6 DL3100 User’s Guide—November 1998GDSU/CSU (Data Service Unit/Channel Service Units)The pair of communications devices that connect an in-house lin

Glossary G-7GESF (Extended Superframe Format)A new T1 framing standard used in Wide Area Networks (WANs). With this format 24 frames, instead of 12 ar

G-8 DL3100 User’s Guide—November 1998Gframe groundA metallic layer acting as a shield, consisting of tape, braid, wire or sheath and surrounding insul

Glossary G-9GLOS (Loss of Signal)Occurs when an input signal is detected as all zeros for 176 bit times.loss A reduction in signal strength, expressed

G-10 DL3100 User’s Guide—November 1998GnetworkAn interconnection of computer systems, terminals, or data communications facilities.NI (Network Interfa

Glossary G-11GRRD (Receive Data)A data port signal.receiverThe receiver synchronizes the framing pattern, separates the frame bits from the payload da

G-12 DL3100 User’s Guide—November 1998GSSCR (Serial Clock Receive)A unipolar clock from the DCE signal. A data port signal.SCT (Serial Clock Transmit)

Glossary G-13GSNMP (Simple Network Management Protocol)A widely-used network monitoring and control protocol. Data is passed from SNMP agents (hardwar

xvi DL3100 User’s Guide—November 1998

G-14 DL3100 User’s Guide—November 1998GTRAPA mechanism by which a device automatically sends an alarm for certain network events to a management stati

I-1IIndex INumerics240 VAC 3-6AAC power 3-6access rights 4-15accessingRemote Node Terminal 4-9, 5-3adapters9-pin to 25-pin 4-3addressdevice 4-7Alarm I

I-2 DL3100 User’s Guide—November 1998IData Path (Idle or Test) Signal Received from DTE (Carrier) 4-21data rate 2-3, 4-24, 4-26date parameter 4-11, 5-

Index I-3IGgrounding conductor A-6grounding, DC power 3-7Hhardware rev 4-17, 4-23HSDBconÞguring 4-21, 4-22conÞguring from the front panel 7-10Current

I-4 DL3100 User’s Guide—November 1998Inetwork status from front panel 7-14node status from front panel 7-13statistics 5-13Motorola S-Record 5-26mounti

Index I-5Idata interface A-2diagnostics A-4downloadable software A-5environmental A-5interface connectors A-2mechanical A-4power A-4T3 network port in

I-6 DL3100 User’s Guide—November 1998Ipower 3-7WECO cable 3-8, 3-9word length 4-1write community string 4-28XXMODEM 5-26

xviiList of TablesTable 3-1 Installation Steps 3-1Table 3-2 Required Equipment 3-2Table 4-1 Part Numbers for DL3100 Units 4-4Table 5-1 T3

xviii DL3100 User’s Guide—November 1998Table A-9 Environmental Information A-5Table A-10 Regulatory Compliances A-5Table A-11 Alarm Types A-

xixPrefaceThe DL3100 UserÕs Guide provides the information you need to install, test, operate, and manage the DL3100. AudienceThis guide is prepared f

Copyright Copyright © 1998, Digital Link CorporationWorld copyright reserved. No part of this publication may be stored in a retrieval system, trans

xx DL3100 User’s Guide—November 1998ConventionsThis section describes the conventions used to delineate speciÞc types of information throughout Digita

Preface xxiTypographyDigital Link manuals delineate the names of Þles, commands, and actions by using the fonts and typefaces described in the followi

xxii DL3100 User’s Guide—November 1998Digital Link Technical SupportIf you should experience difÞculty with the setup and/or operation of your Digital

Preface xxiiiSend Us Your CommentsPlease let us know if this user guide meets your requirements.Does the manual answer your questions?Is the manual th

xxiv DL3100 User’s Guide—November 1998

1-11DL3100 Quick ConÞguration 1This chapter is intended for more experienced users who wish to have a quick reference for the DL3100 conÞguration. It

1-2 DL3100 User’s Guide—November 19981Getting StartedThe DL3100 can be conÞgured through the front panel or through a VT-100 terminal connection. This

DL3100 Quick Configuration 1-31Figure 1-1 Node/T3 Main MenuUnit ConfigurationFrom the Node/T3MB Main Menu select Node ConÞguration. In the Node ConÞgura

1-4 DL3100 User’s Guide—November 19981Figure 1-2 Unit ConfigurationConfiguration Actions1. Set the date (format: MM/DD/YY).2. Set the time (format: HH:M

DL3100 Quick Configuration 1-51Figure 1-3 T3MB ConfigurationConfiguration Actions1. Set the Device Name, up to 20 characters.2. Set the Scrambler option.

Digital Link shall not be liable for failure to perform its obligations if such results directly or indirectly from, or is contributed to by, any act

1-6 DL3100 User’s Guide—November 199816. Set the T3 (DS3) Transmit Clock: Network or Internal. If the carrier is providing timing on the T3 (DS3) sele

DL3100 Quick Configuration 1-71Figure 1-5 HSDB Configuration and ConnectionsConfiguration Actions▼ Set the number of T3 Timeslots to be allocated to the

1-8 DL3100 User’s Guide—November 19981

2-12 About the DL3100 2The DL3100 T3 Access Multiplexer (Figure 2-1) provides an economical means of extending high capacity data systems onto wide ar

2-2 DL3100 User’s Guide—November 19982From one to three DTE boardsÑTwo types of DTE boards are supported: a high-speed DTE Board (HSDB) and a V.35 DTE

About the DL3100 2-32How the DL3100 WorksThe DL3100 allows you to conÞgure the data rate of each payload signal. For example, you can select a data ra

2-4 DL3100 User’s Guide—November 19982

3-13Mechanically Installing the DL3100 3The following table prioritizes the tasks you will need to perform to successfully install the DL3100. Refer t

3-2 DL3100 User’s Guide—November 19983¥ Make sure that you have received all the items ordered. Your shipment should consist of the following:DL3100 T

Mechanically Installing the DL3100 3-33For more information about cable and connector pinout assignments, see Appendix B, ÒDL3100 Connector and Pin As

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits a

3-4 DL3100 User’s Guide—November 19983About Mounting the Unit in a RackThe DL3100 can be front or mid-mounted in a 19-inch or 23-inch rack. Allow abou

Mechanically Installing the DL3100 3-53Front-mounting in a 23-inch RackTo front-mount the unit in a 23-inch rack:▼ Remove the ears from the unit and r

3-6 DL3100 User’s Guide—November 19983Installing the DL3100 with AC PowerTo mechanically install the DL3100 when using AC power, perform the following

Mechanically Installing the DL3100 3-73Figure 3-3 Terminal Block on Rear Panel 3. Connect the -48 VDC wire to the - terminal (on the rear panelÕs term

3-8 DL3100 User’s Guide—November 19983Connecting the DL3100 to a T3 NetworkYou will need a WECO 728A cable or its equivalent to connect the DL3100 to

Mechanically Installing the DL3100 3-93¥ Use a shielded cable with DB-25 plug connectors on one end and V.35 (M34) on the other end.Connect one end of

3-10 DL3100 User’s Guide—November 19983

4-14ConÞguring the DL3100 4To conÞgure a DL3100, you can use the terminal interface by connecting an ASCII terminal to the DL3100Õs comm port.This cha

4-2 DL3100 User’s Guide—November 19984Connecting a Terminal to a Comm (Terminal) PortThe DL3100 has two 9-pin comm port sockets on its rear panel, lab

Configuring the DL3100 4-34Connecting the Terminal Port through a ModemTo connect the terminal port of the DL3100 through a modem, you need a DB-25 to

Incidence of harm: If your telephone equipment causes harm to the telephone network, the telephone company may discontinue your service temporarily.

4-4 DL3100 User’s Guide—November 199841. Using a cable with DE-9 connectors, connect the cableÕs DE-9 socket connector to the terminal (or modem if at

Configuring the DL3100 4-54Figure 4-2 Daisy-chained DL3100 unitsLogging on to the DL3100To log on to the DL3100:1. If you know the node number, skip to

4-6 DL3100 User’s Guide—November 199845. Type the node number and press Return. You will see the prompt:User name:6. Enter a valid user name. If a use

Configuring the DL3100 4-741. Move the highlight bar to the Select Device Þeld and press Return. The highlight bar will then move to the Selected Devic

4-8 DL3100 User’s Guide—November 19984Figure 4-3 Node/T3MB Main MenuNode/T3MB Main Menu SelectionsThe Node/T3MB Main Menu offers the following selecti

Configuring the DL3100 4-94¥ Event HistoryDisplays the DL3100Õs event history and lets you reset alarms.¥ Remote Node MapDisplays the numbers of the re

4-10 DL3100 User’s Guide—November 19984Configuring the DL3100To conÞgure a local or remote DL3100, you need to conÞgure the:¥ Basic node parameters in

Configuring the DL3100 4-114Figure 4-5 Unit Configuration MenuUnit Configuration Menu ParametersThe Unit ConÞguration Menu parameters are:¥DATEEnter a va

4-12 DL3100 User’s Guide—November 19984¥ TIMEEnter a valid time with the format hh:mm:ss.hh 0-23 hoursmm 0-59 minutesss 0-59 secondsExample:

Configuring the DL3100 4-134¥ Node NumberÑ1 to 9,999 (DefaultÑ0)Enter a number between 1 and 9,999 to assign a unique number to each DL3100. Do not as

vi DL3100 User’s Guide—November 1998

4-14 DL3100 User’s Guide—November 19984¥ Terminal XON/XOFFÑEnabled or Disabled (DefaultÑEnabled) EnabledÑEnables a software ßow control feature which

Configuring the DL3100 4-154You can add seven additional users. Each user can have a password. The default for the User IdentiÞcation Þeld and Password

4-16 DL3100 User’s Guide—November 19984Access denied - your account does not have this PRIVILEGE.¥ Automatic Logout:Ñ OFF, 3 - 5 - 10 - 30 minutes aft

Configuring the DL3100 4-174¥ ServiceÑIn Service or Out of Service (DefaultÑIn Service).Allows you to place the DL3100 in or out of service. ¥ Scrambl

4-18 DL3100 User’s Guide—November 19984¥ Transmit ClockÑInternal, Network and External (DefaultÑInternal).Designates the T3 Transmit Main Clock sourc

Configuring the DL3100 4-194Configuring the T3MB TDLYou use the T3MB TDL ConÞguration Menu to provide a Terminal To Terminal Path Maintenance Data Link.

4-20 DL3100 User’s Guide—November 19984Figure 4-9 T3MB TDL Configuration Menu—M13T3MB TDL Configuration Menu ParametersThe T3MB TDL ConÞguration Menu al

Configuring the DL3100 4-214¥ Contents of the TDL Message Received (C-bit Parity Format)The following parameters are view-only parameters and cannot be

4-22 DL3100 User’s Guide—November 19984Figure 4-10 HSDB/HVDB Main MenuHSDB and HVDB Main Menu ParametersThe HSDB and HVDB Main Menus allow you to set

Configuring the DL3100 4-234To access the HSDB ConÞguration and Connections Menu, select the HSDB device from any main menu. Next select ConÞguration &

vii Table of Contents Preface xix Audience xix Organization xix Conventions xx Symbols xx Typography xxi Digital Link Technical Support xxii Returnin

4-24 DL3100 User’s Guide—November 19984¥ Data RateThis is a view-only Þeld. The Data Rate changes automatically to correspond to the number of T3 slot

Configuring the DL3100 4-254Configuring the HVDBYou use the HVDB ConÞguration and Connections Menu to conÞgure the HVDB. To access the HVDB ConÞguration

4-26 DL3100 User’s Guide—November 19984¥ Data RateThis is a view-only Þeld. The Data Rate changes automatically to correspond to the number of T3 slot

Configuring the DL3100 4-274To access the SNMP ConÞguration Menu, select SNMP ConÞguration from the Node/T3MB Main Menu.Figure 4-13 shows an example of

4-28 DL3100 User’s Guide—November 19984¥ Write Community String (text string) (Default Ñ public)Enter an alphanumeric text string (maxÑ31 characters

5-15Monitoring and Managing the DL31005When you log on to a DL3100, the Node/T3MB Main Menu appears on the terminal screen. Figure 5-1 shows an exampl

5-2 DL3100 User’s Guide—November 19985¥ Current T3 Alarms & Status Menu¥ Current HSDB/HVDB Alarms & Status Menu¥ Current T3MB Statistics Menu¥

Monitoring and Managing the DL3100 5-35¥ Remote Node MapDisplays the number of the remote node and the status of the link (up or down).¥ Node ConÞgura

5-4 DL3100 User’s Guide—November 199852. In the Remote Node Terminal Access Menu, enter the remote node number, and press Return.You will be prompted

Monitoring and Managing the DL3100 5-55Viewing the Status of the T3 LinkYou use the Remote Node Map menu to view the status of the T3 link. This is a

viii DL3100 User’s Guide—November 1998 Chapter 3, Mechanically Installing the DL3100 3-1 Preparing for the Installation 3-1 Required Location and Equ

5-6 DL3100 User’s Guide—November 19985Figure 5-4 Current T3MB Alarm and Status MenuTo view additional pages with this same set of performance data, us

Monitoring and Managing the DL3100 5-75Red Alarm Major This is a logical OR of the LOS and OOF alarm. It is True if either of LOS or OOF is True. This

5-8 DL3100 User’s Guide—November 19985FEAC Common Equipment Failure Status Far End Alarm and Control (FEAC) signal was received from remote equipment

Monitoring and Managing the DL3100 5-95Monitoring HSDB and HVDB Alarms and StatusYou use the Current HSDB Alarms & Status Items Menu and the Curre

5-10 DL3100 User’s Guide—November 19985Figure 5-5 Current HSDB Alarms and Status Items MenuCurrent HSDB Alarms and Status Items Menu Parameters The Cu

Monitoring and Managing the DL3100 5-115¥ CA (data Communications equipment Available)On indicates that the DL3100 DSU is prepared to send and receive

5-12 DL3100 User’s Guide—November 19985Figure 5-6 Current HVDB Alarms and Status Items MenuCurrent HVDB Alarms and Status Items Menu Parameters The Cu

Monitoring and Managing the DL3100 5-135¥ Loopback RequestsDTE (LT+RTS)ÑOn or OffOn indicates that the customer equipment (DTE) has requested a loopba

5-14 DL3100 User’s Guide—November 19985Monitoring Network StatisticsThe Current T3MB Statistics Menu allows you to view the network statistics, as wel

Monitoring and Managing the DL3100 5-155Figure 5-8 Current T3MB Statistics Menu - Screen 2 T3MB Statistics ParametersThe T3MB Statistics parameters ar

Table of Contents ix Unit Configuration Menu Parameters 4-11 Login Configuration 4-14 Login Configuration Parameters 4-15 Configuring the T3MB 4-16 T

5-16 DL3100 User’s Guide—November 19985¥ FS (Failed Seconds)A Failed Second is the number of seconds after the occurrence of ten consecutive Severely

Monitoring and Managing the DL3100 5-175¥ P-BIT P-Bit indicates the total number of P-Bit Parity Errors that have occurred during the current interval

5-18 DL3100 User’s Guide—November 19985Comparison of RFC 1407 and the DL3100 Statistics MenuTable 5-2 compares RFC 1407 to the DL3100 Statistics Menu.

Monitoring and Managing the DL3100 5-195RFC 1407 Statistics DescriptionsTable 5-3 describes the statistics for RFC 1407.Table 5-3 RFC 1407 Statistics

5-20 DL3100 User’s Guide—November 19985Monitoring HSDB and HVDB StatisticsThe Current HSDB Statistics and the Current HVDB Statistics Menus allow you

Monitoring and Managing the DL3100 5-215To access the Current HSDB Statistics Menu, select the HSDB device from any of the main menus. Then select Sta

5-22 DL3100 User’s Guide—November 19985¥ ParmainDTE Parity Main (Parmain) is the number of seconds during which a parity error was detected on trafÞc

Monitoring and Managing the DL3100 5-235Figure 5-11 shows an example of the Event History screen.Figure 5-11 Event History ScreenEvent History Menu Pa

5-24 DL3100 User’s Guide—November 19985¥ Event CodeNumber designation for type of alarm or status condition. ¥ DescriptionDescribes the event. Monitor

Monitoring and Managing the DL3100 5-255Each of these utilities is accessible from the Node/T3MB Main Menu.Downloading SoftwareThe Software Download c