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Chapter 13. Testing and Troubleshooting

13-4

DSU IV ESP User Manual

61204011L1-1

Display Status

Reenters test display.

Figure 13-4. Complete Test Menu

TROUBLESHOOTING

This section is intended to provide a quick and easy means of
diagnosing suspected problems associated with local or remotely
attached ADTRAN DSU/CSUs.

Messages from the DSU/CSU

Messages on the LCD display and LEDs give information
concerning the status of the unit and the local loop. If the

A

LARM

LED

is on, at least one of the messages shown in Table 13-1 on page

13-5 is displayed on the LCD.

1= DTE & Loop (LL)

1= Local Unit

2= Loop Only (RT)

1= 2047 Pattern

3= DTE Only

2= 511 Pattern

4= DTE with TP

3= Stress Pattern # 1

4= Stress Pattern # 2

2=Test

5= Test Pattern

5= Stress Pattern # 3

6= Stress Pattern # 4

6= Self Test

1= 2047 Pattern

Enter Test Unit

2= 511 Pattern

2= Remote Unit

Address: 0

3= Stress Pattern # 1

4= Stress Pattern # 2

5= Stress Pattern # 3

1= Dial Stored #

6= Stress Pattern # 4

3= DBU Connection

2= Enter Dial #

7= Data from DTE

3= Redial Last #

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Содержание DSU IV ESP

Страница 1: ...nit with Embedded SNMP User Manual 61204011L1 1B May 2001 Part Number 1204011L1 1204001L1 1204002L2 1204004L1 1204005L1 Version DSU IV ESP ESP 4 wire Switched 56 DBU Card ESP V 34 DBU Card ESP ISDN DB...

Страница 2: ...nview is a registered trademark of Hewlett Packard Company SunNet Manager is a registered trademark of Sun Microsystems Inc Netview is a registered trademark of IBM 901 Explorer Boulevard P O Box 1400...

Страница 3: ...less type during an electrical storm There is a remote risk of shock from lightning 3 Do not use the telephone to report a gas leak in the vicinity of the leak 4 Use only the power cord power supply a...

Страница 4: ...transmitted on the network The affidavit shall affirm that either no encoded analog content or billing informa tion is being transmitted or that the output of the device meets Part 68 encoded analog c...

Страница 5: ...ion information continuously complies with Part 68 of the FCC rules and Regulations The digital CPE does not transmit digital signals containing encoded analog con tent or billing information which is...

Страница 6: ...___________ telco s name with proper documentation to demonstrate compliance with the information in the preceding paragraph if so requested _____________________ Signature _____________________ Title...

Страница 7: ...t with the FCC 5 The telephone company may make changes in its facilities equipment operations or procedures that could affect the proper operation of this equipment If this hap pens the telephone com...

Страница 8: ...n which case the user will be required to correct the interference at his own expense Shielded cables must be used with this unit to ensure compliance with Class A FCC limits Canadian Emissions Requir...

Страница 9: ...ons Repairs to certified equipment should be made by an authorized Canadian mainte nance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment...

Страница 10: ...coding 1 B D Service supports up to 64 kbps The DSU IV ESP ISDN supports the following switch types and software proto cols AT T 5ESS Custom 5E6 and later software National ISDN 1 NT DMS 100 BCS 32 a...

Страница 11: ...unting InterLata Competition For Service offered from a Northern Telecom DMS 100 request a Point to Point Multi Point line with the following features Line Type Basic Rate Functional Electronic Key Te...

Страница 12: ...nty becomes null and void if Customer modifies or alters the equipment in any way other than as specifically authorized by ADTRAN EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE THE FOREGOING CONSTITU...

Страница 13: ...below Presales Inquiries and Applications Support Please contact your local distributor ADTRAN Applications Engineering or ADT RAN Sales Post Sale Support Please contact your local distributor first I...

Страница 14: ...ce 901 Explorer Blvd Huntsville Alabama 35806 RMA _____________ Training The Enterprise Network EN Technical Training Department offers training on our most popular products These courses include over...

Страница 15: ...1 3 SNMP Overview 1 4 Network Manager 1 4 Agent 1 4 MIB 1 4 Telnet 1 5 Dial Backup Operation 1 5 ESP Dial Backup Options 1 6 4 Wire Switched 56 Card 1 6 V 34 Card 1 6 ISDN Card 1 6 Chapter 2 Installa...

Страница 16: ...onnectors DTE Data Connection Primary DTE 3 10 Control Port 3 10 VT 100 Terminal Connection And Operation 3 11 Chapter 4 Applications LAN Application With SNMP Telnet Management 4 1 Minimum Configurat...

Страница 17: ...5 7 Character Format 5 7 Command Structure 5 7 Command Descriptions 5 7 Syntax and Possible Responses 5 8 CNL Configuration Local 5 8 CNR Configuration Remote 5 8 Chapter 6 Configuring Network Option...

Страница 18: ...ocal Directory LDN Number 9 3 SW56 Auto Answer 9 4 DBU Options 9 4 Standard DBU Options 9 6 Automatic DBU 9 6 Number to Dial 9 6 Originate Answer 9 6 DBU Criteria for Entering Dial Backup Mode 9 6 Whe...

Страница 19: ...Community 10 4 SNMP Traps 10 4 Trap IP Address 10 4 System Name Contact and Location 10 5 Authentication Traps 10 5 Telnet Options 10 5 Telnet Password 10 5 Telnet Timeout 10 5 Entering Letters Using...

Страница 20: ...nit Diagnostics 13 8 DTE Loop LL 13 10 Test Purpose 13 10 Interpreting Test Results 13 10 Loop Only RT 13 11 Test Purpose 13 11 Interpreting Test Results 13 11 DTE Only 13 12 Test Purpose 13 12 Interp...

Страница 21: ...Mode 14 2 Answering Call 14 2 Call Disconnect 14 2 Called Unit Busy 14 2 Dialing 14 3 Going to DBU 14 3 Idle 14 3 Incoming Call 14 3 In Dial Backup 14 3 No RX Signal 14 3 No Wink from CO 14 3 Not Inst...

Страница 22: ...l 61204011L1 1 Appendix C Terminal Menu Structure C 1 Appendix D Configuration Profiles D 1 Appendix E DSU to DSU Tail Circuit E 1 Appendix F Specifications Summary F 1 Appendix G Acronyms Abbreviatio...

Страница 23: ...enu Tree for Network DTE and Test Options 5 3 Figure 5 2 Configuration Menu Tree for Dial Management and Utilities Options5 4 Figure 6 1 Network Options Menu Tree 6 2 Figure 7 1 DTE Options Menu Tree...

Страница 24: ...igure C 1 Terminal Menu Tree C 2 Figure C 2 Terminal Interface Main Menu C 3 Figure C 3 Status Menus C 4 Figure C 4 Remote Configuration Options C 5 Figure C 5 Main Configuration Menu C 5 Figure C 6 D...

Страница 25: ...mands 11 4 Table 13 1 Messages from the DSU CSU 13 5 Table 13 2 Troubleshooting New Installs 13 6 Table 13 3 Test AT Commands 13 8 Table 13 4 DTE With Test Pattern Commands 13 9 Table 13 5 Remote Test...

Страница 26: ...11L1 1 Table B 5 AT Commands for Storing Phone Numbers B 7 Table B 6 DBU Options AT Commands for All Models B 8 Table B 7 DBU Options AT Commands for V 34 Card B 10 Table C 1 Terminal Main Menu Dial S...

Страница 27: ...odular approach provides optional 10BaseT ethernet access for SNMP Optional ESP DBU cards are available to provide automatic or manual dial backup for the dedicated circuit The DSU IV ESP has the foll...

Страница 28: ...II AR DSU III S4W DSU III S4W DSU III S4W DSU III DBU DSU III S4W DSU III DBU DSU III DBU DSU III DBU DSU S2W DSU S2W DSU S2W POWER SUPPLY POWER SUPPLY DIAL DIAL STATUS TEST CONFIG ENTER 1 2 3 4 5 6 7...

Страница 29: ...elding DTE rates of 2 4 4 8 9 6 19 2 38 4 sync or async 56 kbps and 64 kbps An additional rate of 57 6 is available in asynchronous mode The unit can be configured to run slower DTE rates async or syn...

Страница 30: ...from the network manager and returns requested information or invokes configuration changes initiated by the manager MIB Index to the organized data within a network device It defines the operation pa...

Страница 31: ...e field installable by the customer See Installation on page 2 1 for information on installing DBU cards All DBU cards are compatible with other ADTRAN ESP products supporting DBU see the following no...

Страница 32: ...modem modes of operation V 34 and V FC modes The V 34 option runs synchronous rates up to 33 6 kbps and the V 32 operates up to 14 4 kbps Asynchronous mode provides the throughput of 57 6 kbps and is...

Страница 33: ...ontainer for use in shipping the DSU IV ESP for repair or for verification of damage during shipment ADTRAN Shipments Include The following items are included in ADTRAN shipments of the DSU IV ESP DSU...

Страница 34: ...en connecting the unit to an external data service i e router For SNMP management the customer must provide access to the DSU IV ESP either through a SLIP port Async PPP port requires a male 25 pin D...

Страница 35: ...e terminal Main menu Main Menu The following section briefly describes the main menu s four branches which are displayed on the front panel LCD see Figure 3 1 Detailed information is provided in the i...

Страница 36: ...ON menus to select network and DTE operating parameters configure testing and dialing options select management functions and configure unit utilities This menu branch is divided into several chapters...

Страница 37: ...ayed item Up Arrow Scrolls up the submenu items Down Arrow Scrolls down the submenu items Cancel Exits back one level from the current branch of the menu To choose a menu item press the corresponding...

Страница 38: ...TE configuration by pressing the corresponding number then press Enter 3 Use the arrow keys to view submenu items 4 Choose an item on the submenu such as NETWORK OPTIONS NETWORK OPT 5 Activate NETWORK...

Страница 39: ...e menu items To select a menu item press the number of the item The menu item flashes indicating it is activated Press Enter to select the menu item Keypad The keypad contains dual function keys numbe...

Страница 40: ...lay to the Main menu During a test the Quick key returns to the top of the TEST menu In SW56 operations if the unit is not in test the Quick key returns to the DIAL menu Cancel Pressing the Cancel key...

Страница 41: ...LED is active when data is transmitted from the DTE RD Receive Data This LED is active when data is received from the net work CD Carrier Detect This LED is active when frame synchronization is achie...

Страница 42: ...r View DDS VT 100 Terminal or device running SLIP or async PPP protocol DTE Device DTE Device RJ45 to DB25 Cable V 35 Cable TELCO EIA 232 DBU INTERFACE LAN INTERFACE Z 15A A ISDN DBU 10 BASE T 1 LAN O...

Страница 43: ...tion Telco Connector Network Interface Connection The DSU IV ESP has an 8 position modular jack labeled TELCO The telco connector is used for connecting to the DDS network The pinout for this connecto...

Страница 44: ...selected The primary DTE rate is configured from the front panel The primary DTE equipment can operate in asynchronous or synchronous modes Control Port The DSU IV ESP has an 8 position modular jack l...

Страница 45: ...minal 3 Using the provided VT 100 terminal adapter cable connect the COM port of a VT 100 compatible terminal or equivalent to the eight pin modular jack labeled CONTROL on the rear of the DSU IV ESP...

Страница 46: ...r accessing configuration selections Descriptions of individual menu options are provided throughout this manual based on the front panel menu structure See Figure 5 1 on page 5 3 and Figure 5 2 on pa...

Страница 47: ...ished Telnet session or an SNMP based network manager like HP Openview IBM Netview or SunNet Manager SNMP and Telnet management are provided by one of the following interfaces A device e g a router ru...

Страница 48: ...TDN RDN TD1 ALM TST 1 A C B 4 D F E SHIFT DELE TE QUICK NEXT PREV ADD 7 2 5 3 6 9 8 0 DSU IV ESP RD1 TD2 RD2 TDN RDN TD1 ALM TST 1 A C B 4 D F E SHIFT DELE TE QUICK NEXT PREV ADD 7 2 5 3 6 9 8 0 Route...

Страница 49: ...Enter the subnet number This address is available from the network administrator Gateway IP Address if required Enter the Gateway node IP address This address is necessary only if the DSU IV and the...

Страница 50: ...Enter DBU under specific primary network conditions Lock out DBU over the weekend and or at specified times of the day Dial a specified number when a DBU activation condition is detected Figure 4 3 D...

Страница 51: ...urrent provided by the central office CO to prevent corrosion over the copper wires used in the local loop Sealing current may also be used for local loop testing purposes An absence of sealing curren...

Страница 52: ...dial backup mode if data terminal ready DTR is low This feature prevents the DSU IV ESP from entering dial backup during noncritical times such as nights and weekends For more information see Configur...

Страница 53: ...the condition causing the DDS circuit failure has been corrected Once the DSU IV ESP determines that the problem has been properly corrected and the DDS circuit is stable it will wait for the amount o...

Страница 54: ...Chapter 4 Applications 4 8 DSU IV ESP User Manual 61204011L1 1...

Страница 55: ...tem requirements it can be modified or one of the other profiles that more closely matches the system requirements can be loaded into current memory When a different profile is loaded or the existing...

Страница 56: ...e 7 1 Configuring Test Options on page 8 1 Configuring Dial Options on page 9 1 Management Functions on page 10 1 and Configuring Unit Utilities on page 11 1 A complete Configuration menu for the fron...

Страница 57: ...bits 2 Async 10 bits 3 Data Format 1 Asynchronous 3 Async 11 bits 2 Synchronous 4 DTE CMD Option 1 Disabled 2 AT Command Set 5 Transmit Clock 1 Normal 3 V 25 Sync 2 External 4 V 25 BSC Async 3 Invert...

Страница 58: ...3 9600 BPS 5 Management 3 IP Options 1 Unit IP Address 2 Subnet Mask 3 GW IP Address 1 Disabled 4 IP Security 2 Enabled 1 Get Community 4 SNMP Options 2 Set Community 1 Disable 3 Trap Community 2 Gen...

Страница 59: ...mmands can be transmitted to the DSU IV ESP to configure most of the options or initiate tests to check both the DSU IV ESP and the network connections All command lines must begin with the AT charact...

Страница 60: ...SDLC Option Character Format Data bits 8 Parity bit Ignored Command Structure F A C V 25 bis COMMAND FCS F The address field A is FFH The control field C is set to 13H except for cases of multi frame...

Страница 61: ...ration commands for both local and remote DSUs The ADTRAN V 25 bis command set follows Possible responses to V 25 bis commands follows If verbose responses are disabled ATV0 the following three charac...

Страница 62: ...of the unit Responses to CNL commands are returned in the data format currently configured Possible responses include VALA and INVAn CNR Configuration Remote This command is used to pass AT commands o...

Страница 63: ...IONS configuration parameters control the loop operation of the DSU IV ESP Once a parameter is set COMMAND ACCEPTED is displayed briefly before returning to the active menu Table 6 1 on page 6 3 shows...

Страница 64: ...4K 1 LOCAL 1 NETWORK OPT 3 4 8K 4 9 6K 2 DTE OPTIONS 5 19 2K CONFIG 3 TEST OPTIONS 6 38 4K 2 REMOTE ENTER ADDR 4 DIAL OPTIONS 7 6K 5 MANAGEMENT 8 64K 6 UTILITIES 2 NETWORK ADDR ENTER NETWORK ADDRESS...

Страница 65: ...te must be set independently of the DTE rate Eight loop rate selections are available See Figure 6 1 The default factory setting is AUTO The various loop rates and format selections are listed in Tabl...

Страница 66: ...ctory default setting is ENABLED Network Type Select the appropriate network type The choices are DEDICATED AT T MCI SW56 and US SPRINT SW56 The factory default setting is DEDICATED Clock Source The C...

Страница 67: ...TIONS The DTE OPTIONS menu is used to select the configuration parameters that control the operation of the DTE Interface of the DSU IV ESP The DTE OPTIONS menu tree is shown in Figure 7 1 on page 7 2...

Страница 68: ...a Format 1 Async 3 Async 11 Bits 2 Sync 4 DTE CMD Option 1 Disabled 2 AT Command Set 3 V 25 Sync 4 V 25 BSC Async 1 Normal 2 External 5 Transmit Clock 3 Invert 6 CS Options 1 Forced On 1 CS Delay Shor...

Страница 69: ...y 2 Scrambler On _F1 DTE data scrambler enabled 64kbps loop rate only 3 Suppress LBE _F2 Suppresses loopback enable code LBE in transmit data from the DTE after 30 bytes in a row detected 64 kbps loop...

Страница 70: ...disabled 2 Time 10 Sec T1 Timeout equals 10 seconds 3 Time 30 Sec T2 Timeout equals 30 seconds 4 Time 60 Sec T3 Timeout equals 60 seconds CD Options 1 Forced On C0 On all the time 2 Normal C1 On only...

Страница 71: ...ff 5 sec after disconnect SW56 only 4 Off Test only S0_C0 Off for test only 5 Off test OOS S1_C0 Off for test and OOS 6 Off test LOCD S5 Off 5 seconds after disconnect or test Table 7 1 DTE Options AT...

Страница 72: ...used to select either the synchronous or asynchronous mode of operation for the DTE interface The factory default setting is SYNCHRONOUS If ASYNCHRONOUS is chosen the length of the data bytes must be...

Страница 73: ...DSU IV ESP to accept MASTER CLOCK timing from the External DTE Port as defined under DTE Options connector type The CLOCK SOURCE under NETWORK OPTIONS must also be set to MASTER as noted in the secti...

Страница 74: ...ERT CLOCK option is recommended when the EIA 232 connector is used for rates other than 56 kbps or 64 kbps Clear to Send CS Options The CS OPTIONS menu is used to select the control mode for the CS le...

Страница 75: ...om it This condition exists until the DTE deactivates the RS input The factory default setting is TIMER OFF Table 7 1 on page 7 3 shows the available options and their AT commands CD Options The CD OP...

Страница 76: ...SR Options The SR OPTIONS menu is used to select the operating mode for the data set ready SR lead from the DTE options menu To activate the SR OPTIONS press Shift A and Enter The factory default set...

Страница 77: ...tree The AT commands and their available options are listed in Table 8 1 on page 8 2 Figure 8 1 Test Options Menu Tree 1 Network Opt Enter Timeout 2 DTE Options 1 Test Timeout 0 Off 00 Sec 1 Local 3 T...

Страница 78: ...ry default setting is RDL ACCEPTED Table 8 1 Test Options AT Commands Front Panel AT Command Description Test Timeout Enter Timeout S18 x Specify 0 to 255 second test timeout RDL Enable Disable 1 RDL...

Страница 79: ...specifies whether the DSU IV ESP responds to the RLB input from the DTE The factory default setting is DISABLED DBU Answer Test The dial backup connection can be tested while data is passing on the D...

Страница 80: ...Chapter 8 Configuring Test Options 8 4 DSU IV ESP User Manual 61204011L1 1...

Страница 81: ...on page 9 2 shows the full Dial Backup Options 4 Dial Options menu Note that some items are restricted to certain DBU cards DIAL BACKUP MODULES The DSU IV ESP provides an optional dial backup slot in...

Страница 82: ...ed 6 Redial Counter Enter Redial Count 0 4 When all 1s 0s 1 Disabled 7 Fail Timer Auto DBU Fail Time 2 Enabled 0X10 Sec 5 Answer Always 1 Disabled 8 Wait to Redial Wait to Redial 2 Enabled Time 0 Sec...

Страница 83: ...stored in Stored Number 9 The SPID is a sequence of digits identifying ISDN terminal equipment to the ISDN switch when more than one ISDN set has been attached to the same central office line The SPID...

Страница 84: ...or the Dial Backup features There are ten standard options available with additional options for specific backup services Table 9 2 lists the DBU options and their AT commands for all models Table 9 2...

Страница 85: ...d none Answer unit answers any incoming call regardless of failed condition Weekend Lockout 1 Disabled none Disables weekend lockout feature 2 Enabled none No backup occurs from midnight Fri day to mi...

Страница 86: ...es or waits to answer if the dedicated circuit fails One end must be set to ORIGINATE and the other to ANSWER The factory default setting is ANSWER DBU Criteria for Entering Dial Backup Mode These opt...

Страница 87: ...r that the daily lockout begins and dial backup is disabled 0 to 23 Only applies if the DAILY LOCKOUT parameter is ENABLED Lockout End Enter the hour that the daily lockout ends and dial backup is rea...

Страница 88: ...the DSU IV ESP attempts backup The amount of time which is manually entered can be up to 990 seconds The factory default setting is 30 SECONDS AUTO DBU FAIL TIME __ __ x 10sec Wait to Redial This opt...

Страница 89: ...s MNP er ror control first uses normal operation if nec essary 5 RELIABLE V 42 N4 Reliable V 42 LAPM operation Uses V 42 LAPM error control If V 42 LAPM error control cannot be used the call is discon...

Страница 90: ...factory default setting is CTS ONLY Compression This option is used to select V 42 bis data compression for V 32 bis or V 34 operation when running asynchronously When enabled data throughput speeds a...

Страница 91: ...the originate unit transmits a pre programmed passcode to the answer unit over the dial backup connection before the connection is considered valid The answer unit compares the received passcode to a...

Страница 92: ...Chapter 9 Configuring Dial Options 9 12 DSU IV ESP User Manual 61204011L1 1...

Страница 93: ...t Functions CONFIGURING MANAGEMENT FUNCTIONS The MANAGEMENT menu is used to select the desired management interface type and to set up the necessary parameters for establishing Telnet or SNMP manageme...

Страница 94: ...Enter Address 2 2400 BPS 3 9600 BPS 3 IP Options 1 Unit IP Address 2 Subnet Mask 3 Gateway IP Addr 1 Disabled 4 IP Security 2 Enabled 5 IP Filter Addr Enter Source IP Number 1 5 1 1 Get Community 4 S...

Страница 95: ...m the network administrator Gateway IP Address Enter the GATEWAY NODE IP ADDRESS in dotted decimal notation This address is necessary only if the DSU IV ESP and network manager are connected through a...

Страница 96: ...Panel on page 10 6 for more information Trap Community For SNMP operation view and edit the TRAP COMMUNITY string The DSU IV ESP sends this string in SNMP trap messages to the network manager The def...

Страница 97: ...the DSU IV ESP to send SNMP authentication traps to the SNMP management station If enabled the DSU IV ESP sends these traps when an SNMP request with an invalid community name string is received Telne...

Страница 98: ...ing entry 4 Press the Shift key The cursor appears as an underscore _ 5 Use the up and down arrow keys to scroll to the appropriate letter 6 When the letter displays press Shift A block cursor appears...

Страница 99: ...Utilities The UTILITIES menu is used to enter manual commands set and view the time and date and view the software version LAN MAC address and the unit serial number See Figure 11 1 on page 11 2 for...

Страница 100: ...00 Command HH 2 DTE Options Value 00 1 Local 3 Test Options 4 Dial Options 2 Time Date 1 Current 1 Time 23 01 59 5 Management 2 Date 08 15 01 Config 6 Utilities 2 Remote Enter 2 Set Time 1 Set Hours A...

Страница 101: ...2 Then select MANUAL COMMAND The first display prompts for command number entry COMMAND 00 3 Use the up arrow key to delete the current entry then use the number keys to enter the new value Press Shi...

Страница 102: ...orm verbose 86 01 AT Escape Character 2 00 to FF AT CR Character 3 00 to FF AT LF Character 4 00 to FF AT BS Character 5 00 to FF AT Escape Char Timer 0C 00 to FF Abort Call Timer 7 00 to FF DTR Recog...

Страница 103: ...his information is only necessary for the Weekend and Time of Day Lockout features Software Revision View the current revision of the software installed in the DSU IV ESP LAN MAC Address View the LAN...

Страница 104: ...Chapter 11 Configuring Unit Utilities 11 6 DSU IV ESP User Manual 61204011L1 1...

Страница 105: ...work type selection CONFIG NETWORK OPT NETWORK TYPE If AT T MCI SW56 or US SPRINT SW56 is selected the options appear as shown in Figure 12 1 If DEDICATED is selected and a DBU card is installed the o...

Страница 106: ...call and enters dial backup Originate Unit Connected to DDS Line Dial Backup The DSU IV ESP prompts to dial a stored number or enter a number to dial for dial backup Stay on Leased The DSU IV ESP rem...

Страница 107: ...DSU IV User Manual 12 3 Dial Options During Dial Backup Hang Up Terminates the dial backup connection and attempts to reestablish communication on the DDS line Stay On Line This DSU IV ESP remains in...

Страница 108: ...Chapter 12 Activating Dial Functions 12 4 DSU IV User Manual 61204011L1 1...

Страница 109: ...ronous mode AT commands can control the testing from the DTE interface For synchronous operation V 25 bis commands can provide test control The unit also responds to standard DDS network tests initiat...

Страница 110: ...ed by Enter 3 Use the up and down arrows to view test options 4 Select a test from the available options by pressing the corresponding number followed by Enter Figure 13 2 shows the menu path for init...

Страница 111: ...ith a test pattern Figure 13 3 Sample Test Status Displays Exiting a Test During a test press Quick to access the EXIT TEST DISPLAY STATUS menu or press Cancel to return to the Main menu The EXIT TEST...

Страница 112: ...ion concerning the status of the unit and the local loop If the ALARM LED is on at least one of the messages shown in Table 13 1 on page 13 5 is displayed on the LCD 1 DTE Loop LL 1 Local Unit 2 Loop...

Страница 113: ...If a problem persists contact telco provider No RX Signal Unit detects sealing current but no data sig nal from telco Bad conductor in tel co cable from DSU to telco jack or bad cir cuit to telco Rep...

Страница 114: ...st Sequence for Troubleshooting New Installs or Existing Circuits on page 13 7 Table 13 2 Troubleshooting New Installs Configuration Item to Check Option Selection Action DTE Type EIA 232 or V 35 From...

Страница 115: ...st Pattern to determine whether the unit s internal transmitter and receiver are operating error free If problem persists perform a Remote Test to verify the connection between the local and remote un...

Страница 116: ...Table 13 3 Test AT Commands Front Panel Display AT Command Description DTE Loop LL T10 TD TD and TX TX Loopbacks Loop Only RT T11 RX TX Loopback at Network Interface DTE Only T1 TX RX Loopback at DTE...

Страница 117: ...ss pattern with alternating high and low ones densities Repeated pattern of 100 octets 1111 1111 followed by 100 octets 0000 0000 4 Stress Pattern 2 _T3 T8 Stress pattern with alternating medium and l...

Страница 118: ...E LOOP test provides a bidirectional loopback at the DSU CSU Figure 13 5 illustrates the loopback points and the signal paths for this test Figure 13 5 DTE Loop Test Test Purpose The DTE LOOP test is...

Страница 119: ...he actual communication circuit Figure 13 6 illustrates the loopback point and the signal paths for this test Figure 13 6 Loop Only Test Test Purpose The LOOP ONLY test is used to provide a loopback f...

Страница 120: ...verify proper operation between the local DTE and the local DSU IV ESP Figure 13 7 DTE Only Test Diagram Test Purpose The DTE ONLY test is used for the following purposes Verify integrity of the DTE...

Страница 121: ...n be used to detect deficiencies within the internal drivers and receivers of the DSU IV ESP Figure 13 8 illustrates the loopback point and the data paths for this test Figure 13 8 DTE with Test Patte...

Страница 122: ...the display indicates the type of test being performed while the second line of the display indicates the number of errors accumulated by the test pattern detector If errors occur during this test pre...

Страница 123: ...ected test pattern using an internal test pattern generator and compares the received data using internal test pattern detector to detect if there are any errors on the DDS circuit Injects errors and...

Страница 124: ...and is recommended if there is any question about the DSU s health Test Purpose The purpose of this test it to determine if the DSU is functioning properly Interpreting Test Results Once SELF TEST is...

Страница 125: ...e 13 10 V 54 RDL with Test Pattern Front Panel AT Command Description 1 2047 Pattern _T0 T7 Standard 2047 random data pattern 2 511 Pattern _T1 T7 Standard 511 random data pattern 3 Stress Pattern 1 _...

Страница 126: ...EST UNIT ADDRESS XX Use the number keys to type the address of the remote DSU then press Enter The test pattern selections are displayed After a test pattern is selected the system briefly displays PL...

Страница 127: ...esignated at the answer unit is placed into loopback and a test pattern is transmitted from the originate unit to the answer unit Receive data is checked for errors and the results displayed on the fr...

Страница 128: ...ly Initiating Follow the menu path outlined in Figure 13 13 to initiate a DBU connection test Figure 13 13 Initiating a DBU Connection Test Interpreting Test Results If the unit is functioning properl...

Страница 129: ...operation the DSU IV ESP automatically reverts to the Status display see Figure 14 1 Figure 14 1 Status Display DTE Loop DATA MODE LOOP IS NORMAL LOOP 64K DTE 9 6K SYNC SW56 DBU STATUS OPEN LOOP TR SR...

Страница 130: ...the dial backup option installed in the DSU IV ESP ISDN DBU Status 1 B D Basic Rate ISDN backup option installed SW56 DBU Status 4 wire Switched 56 backup option installed V 34 DBU Status V 34 backup...

Страница 131: ...ignal received from telco Also indicates ISDN line is inactive No Wink from CO Switched 56 provider encountered a service problem 4 wire SW56 only Not Installed No dial backup option installed in the...

Страница 132: ...Figure 14 1 on page 14 1 indicates current DSU IV ESP status Possible messages are Data Mode In data mode the data set ready SR and request to send RTS circuits are on and the DSU IV ESP is ready to...

Страница 133: ...from the telco Loop is Normal The DSU is connected to the dedicated line OOS OOF The telco is transmitting an out of service code Open Loop The DDS physical connection has been broken Waiting for Call...

Страница 134: ...Chapter 14 Viewing Status Information 14 6 DSU IV ESP User Manual 61204011L1 1...

Страница 135: ...1 Appendix A Pinouts The following tables give the pin assignments for the connectors located on the back of the DSU IV ESP the DBU cards and ESP ethernet card For more information on the connectors s...

Страница 136: ...Data from DSU to Network Tip 1 3 N A 4 N A 5 N A 6 N A 7 T Receive Data from Network to DSU Tip 8 R Receive Data from Network to DSU Ring Pin Name Description 4 Wire Switched 56 1 R1 Transmit Data fr...

Страница 137: ...ata TD 3 BB Receive Data RD 4 CA Request to Send RS 5 CB Clear to Send CS 6 CC Data Set Ready SR 7 AB Signal Ground SG 8 CF Received Line Signal Detector CD 9 12 Test Point 10 12 Test Point 15 DB Tran...

Страница 138: ...Detector CD H Data Terminal Ready DTR J Ring Indicator L Local Loopback LL N Remote Loopback RL R 104 Received Data RD A T 104 Received Data RD B V 115 Receiver Signal Element Timing SCR A X 115 Rece...

Страница 139: ...used Used for hardware flow control Pin Name Description 1 TD The positive signal for the TD differential pair This signal contains the serial output data stream transmitted onto the network 2 TD The...

Страница 140: ...Appendix A Pinouts A 6 DSU IV ESP User Manual 61204011L1 1...

Страница 141: ...ber none ATE Echo Command 1 ATH Hang Up Call none ATO Go Online none ATQn Result Code Display 0 ATSn Read S Register none ATSn x Write to S Register none ATVn Result Code From Firmware 1 ATZ Self Test...

Страница 142: ...U Number to Dial 0 AT_Cn SR Control During Test 0 AT_Dn RTS CTS Delay 0 AT_En DBU Originate Answer 0 AT_Fn Scrambler Control 0 AT_Gn DBU When OOS 0 AT_Hn DBU When No TX Signal 0 AT_In DBU When No Seal...

Страница 143: ...crambler On _F1 DTE data scrambler enabled 64kbps loop rate only 3 Suppress LBE _F2 Suppresses loopback enable code LBE in transmit data from the DTE after 30 bytes in a row detected 64 kbps loop rate...

Страница 144: ...ed 2 Time 10 Sec T1 Timeout equals 10 seconds 3 Time 30 Sec T2 Timeout equals 30 seconds 4 Time 60 Sec T3 Timeout equals 60 seconds CD Options 1 Forced On C0 On all the time 2 Normal C1 On only when d...

Страница 145: ...y S1_C1 Off when network out of service 3 Off LOCD Only S3 Off 5 sec after disconnect SW56 only 4 Off Test only S0_C0 Off for test only 5 Off test OOS S1_C0 Off for test and OOS 6 Off test LOCD S5 Off...

Страница 146: ...ds Front Panel AT Command Loop Rate AUTO B0 2 4K B1 4 8K B2 9 6K B3 19 2K B4 38 4K B5 56K B6 64K B7 Network Address XX decimal _N xx Remote Configuration 1 DISABLED P4 2 ENABLED P5 Network Type 1 DEDI...

Страница 147: ...2 RDL Accepted T4 RDL request accepted EIA LLB Enable Disable 1 Disabled _A0 No response to local loopback 2 Enabled _A1 Responds to local loopback EIA RLB Enable Disable 1 Disabled _R0 No response t...

Страница 148: ...Answer 1 DBU originate _E0 Originates call if DDS fails 2 DBU answer _E1 Answers call if DDS fails DBU Criteria When Out of Service 1 Disabled _G0 No DBU for OOS 2 Enabled _G1 DBU when OOS No Receive...

Страница 149: ...from midnight Fri day to midnight Sunday Daily Lockout 1 Disabled none Sets dial backup lockout starting hour 2 Enabled none Sets dial backup lockout ending hour Lockout Start none Sets hour to enabl...

Страница 150: ...BLE V 42 N4 Reliable V 42 LAPM operation Uses V 42 LAPM error control If V 42 LAPM error control cannot be used the call is dis connected 6 REL V 42 MNP N5 Reliable V 42 LAPM or MNP operation Uses eit...

Страница 151: ...ands 61204011L1 1 DSU IV ESP User Manual B 11 Compression 1 Disabled C0 Compression disabled 2 Enabled C1 Compression enabled Table B 7 DBU Options AT Commands for V 34 Card Continued Front Panel AT C...

Страница 152: ...Appendix B AT Commands B 12 DSU IV ESP User Manual 61204011L1 1...

Страница 153: ...menu tree is shown in Figure C 1 on page C 2 An example of a terminal screen is shown in Figure C 2 on page C 3 Due to the increased display capabilities the VT 100 menu structure dif fers from the fr...

Страница 154: ...DTE 2047 PTRN 5 DTE 511 PTRN 3 Dial Directory Enter edit stored numbers 1 10 6 9 DTE DDS PRTNs 1 4 10 XMIT 2047 PTRN 1 SNMP 1 System Name 11 XMIT 511 PTRN 4 Management 2 Interface 2 System Location 12...

Страница 155: ...umber then press Enter See Figure C 2 Table C 1 Terminal Main Menu Dial Selection Figure C 2 Terminal Interface Main Menu The DIAL selection in the terminal Main menu is determined by two things the N...

Страница 156: ...4 DSU IV ESP User Manual 61204011L1 1 Status Menus STATUS menus display all relevant information for the network and DTE interfaces See Figure C 3 For more information see Viewing Status Information...

Страница 157: ...nus When LOCAL CONFIGURATION is selected the screen in Figure C 5 appears For REMOTE CONFIGURATION the remote address must be entered through the menu shown in Figure C 4 After entering the address th...

Страница 158: ...Test options The chapters Configuring Network Options on page 6 1 Configuring DTE Options on page 7 1 Configuring Test Options on page 8 1 and Configuring Dial Options on page 9 1 include detailed de...

Страница 159: ...ure C 7 Figure C 7 S4W Dial Backup Dial Directory Configuration Enter edit stored numbers See Configuring Dial Options on page 9 1 for more information If DBU CONFIGURATION is selected when no DBU car...

Страница 160: ...nt interface and set the unit up to respond to the selected interface See Configuring Management Functions on page 10 1 for more information The MANAGEMENT menu is shown in Figure C 8 The SNMP menu wh...

Страница 161: ...Configuration View set the time of day and date view the LAN MAC address if the ESP ethernet card is installed enable disable the front panel or enter manual commands Configuring Unit Utilities on pag...

Страница 162: ...al Remote Test Menus The LOCAL TEST OPTIONS menu is shown in Figure C 11 The REMOTE TEST OPTIONS menu is shown in Figure C 12 For information on these menu items see Testing and Troubleshooting on pag...

Страница 163: ...in the TERMINAL INTERFACE menu see Figure C 2 on page C 3 and Table C 1 on page C 3 When a DBU ESP card is installed and the DEDICATED NETWORK TYPE is selected the DIAL ESP DBU selection is shown inst...

Страница 164: ...ESP DBU The menu shown in Figure C 14 is available when an ESP option card is installed in the DSU IV ESP and the NETWORK TYPE is set to DEDICATED See Chapter 12 Activating Dial Functions on page 12 1...

Страница 165: ...d for a 56 kbps synchronous point to point or dial up operation with a V 35 connector AUTOMATIC DBU has been disabled for this configuration profile PROFILE 2 Use profile 2 for a 56 kbps asynchronous...

Страница 166: ...ng Long Long Long Test Pattern Type 2047 2047 2047 2047 CS Delay Short Short Short Short DTE Recog Delay x100ms 3 3 3 3 DTR Command Timeout x100 8 8 8 8 Front Panel En Dis Enable Enable Enable Enable...

Страница 167: ...Answer Test Disable Disable Disable Disable Dial Options Automatic DBU Disable Disable Enable Enable DBU Number to Dial 1 1 1 1 DBU Originate Answer Answer Answer Answer Originate DBU when OOS Enable...

Страница 168: ...Appendix D Configuration Profiles D 4 DSU IV ESP User Manual 61204011L1 1...

Страница 169: ...the receive line on the other DSU and the DTR CTS RTS and CD signal lines get matched appropriately Figure E 2 on page E 3 details the crossover cable wiring ADTRAN DSU CSU units will operate in this...

Страница 170: ...Appendix E DSU to DSU Tail Circuit E 2 DSU IV ESP User Manual 61204011L1 1 Figure E 1 DDS Tail Circuit DDS NETWORK Tail circuit crossover cable DTE DTE DDS NETWORK DSU DSU DDS Loop DDS Loop...

Страница 171: ...hown in Figure E 2 Figure E 2 Standard EIA 232 D Crossover Cable P1 Pin Pin P2 Chassis Ground TXD RXD RTS CTS DSR Signal Ground CD RLSD RC SCR DTR ETC SCR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18...

Страница 172: ...Appendix E DSU to DSU Tail Circuit E 4 DSU IV ESP User Manual 61204011L1 1...

Страница 173: ...B D in dial backup PSTN V 34 in dial backup Network Data Rates Dedicated mode service rates 2 4 4 8 9 6 19 2 38 4 56 64 kbps Switched mode service rate 56 kbps Dial Backup Switched 56 56 kbps V 34 2 4...

Страница 174: ...DDS slaved to network receive clock Private network master internal Private network master slaved to external DTE clock Normal DDS tail circuit Switched Mode Dialing Options Stored number Front panel...

Страница 175: ...y Approvals U L 1950 C U L 1950 FCC Part 15 Class A FCC Part 68 CS03 Environment Operating Temperature 0 to 50 O C 32 to 122 O F Storage Temperature 20 to 70 O C 4 to 158 O F Relative Humidity Up to 9...

Страница 176: ...Appendix F Specifications Summary F 4 DSU IV ESP User Manual 61204011L1 1...

Страница 177: ...ous BECN backward explicit congestion notification BOP bit oriented protocol CCITT Consultive Committee for International Telephony and Telegraphy CD carrier detect CIR committed information rate CO c...

Страница 178: ...ress EBCDIC extended binary coded decimal interexchange code FECN forward explicit congestion notification FEP front end processor FIFO first in first out FR frame relay FRAD frame relay access device...

Страница 179: ...RDL remote digital loopback RFC request for comments RFECN remote forward explicit congestion notification RIP routing information protocol RMA return material authorization RNR receiver not ready RR...

Страница 180: ...tions G 4 DSU IV ESP User Manual 61204011L1 1 SW56 switched 56 sync synchronous TD transmit data TR data terminal ready Tx transmit UA unavailable UNI user to network interface VRC vertical redundancy...

Страница 181: ...through a channel the greater the bandwidth the more information that can be sent in a given amount of time bridge A device that supports LAN to LAN communications Bridges may be equipped to provide...

Страница 182: ...ed When rates exceed the CIR frames may be discarded clocking An oscillator generated signal that provides a timing reference for a transmis sion link A clock provides signals used in a transmission s...

Страница 183: ...l the functions required for connection to telephone com pany lines and for converting signals between telephone lines and DTE Also see DTE DDS digital data service A private line digital service for...

Страница 184: ...es referred to as DTE As a source device it sends data to an inter face device for encapsulation in a frame relay frame As a destination device it receives de encapsulated data i e the frame relay fra...

Страница 185: ...face the cus tomer s equipment to frame relay network See also interface device and encap sulation frame relay frame A variable length unit of data in frame relay format that is transmitted through a...

Страница 186: ...te grated access arrangements and defines a limited set of standard multipurpose interfaces for equipment vendors network providers and customers Inter working with a public switched telephone network...

Страница 187: ...ircuit a PVC consists of the originating frame relay network element address originating data link control identifier terminating frame relay network element address and ter mination data link control...

Страница 188: ...n for a powering situation that consists of a wet loop without span power service The provision of telecommunications to customers by a common carrier admin istration or private operating agency using...

Страница 189: ...d by sharing a single clock Each end of the transmission synchronizes itself with the use of clocks and informa tion sent along with the transmitted data synchronous data link control SDLC A link leve...

Страница 190: ...Appendix H Glossary H 10 DSU IV ESP User Manual 61204011L1 1...

Страница 191: ...uration profiles chart D 2 connector type for DTE 7 6 control port 3 10 control port operating speed 10 3 customer service xiii D data format DTE interface 7 6 data set ready SR options 7 10 data term...

Страница 192: ...l backup passcode 9 11 ISDN DBU status 14 2 ISDN dial backup 9 3 ISDN switch types 9 11 L LAN application with SNMP Telnet management 4 1 LDN number for ISDN dial backup 9 3 local remote configuration...

Страница 193: ...nus 1 5 telnet options password 10 5 telnet timeout 10 5 terminal main menu C 3 terminal menu dial selection C 3 for VT 100 and telnet C 1 test AT commands 13 8 test options AT commands 8 2 B 7 test o...

Страница 194: ...Index Index 4 DSU IV ESP User Manual 61204011L1 1...

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