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XtendLan XL-GDB series User’s Guide

APPENDIX D: Loopback Illustration

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Содержание XL-GDB101E

Страница 1: ...DB101S RS 449 EIA 530 over 2 wire G SHDSL XL GDB101F Ethernet over 2 wire G SHDSL XL GDB101E E1 over 2 wire G SHDSL XL GDB102E E1 over 4 wire G SHDSL XL GDB101T T1 over 2 wire G SHDSL XL GDB102T T1 ov...

Страница 2: ...requiring bandwidths from 192kbps to 2 3Mbps G SHDSL is poised for the best cost effective solution for business based applications such as Internet access and remote LAN access By adapting G SHDSL Sm...

Страница 3: ...less data transport of up to 2 304 Mbps over a single pair of unconditioned copper wire Also models with 2 pair transmitions provide rates up to 4 096 Mbps The rate is automatically adjusted to synchr...

Страница 4: ...over the single copper pair to the line port of its associated XL GDB line interface card The XL GDB interface card then directs the data stream to the central office switch or other central office e...

Страница 5: ...024 1168 1280 1544 2048 2312 Kbps Clock Source Internal DSL or DTE The I O connectors The pin lists for the interface connectors appear in Appendix A 1 2 2 2 Ethernet Remote Bridge The XL GDB101F prov...

Страница 6: ...s either synchronized to the network CO or recovered by the CPE The detailed features of E1 are Bit Rate Nx64Kbps 1 N 32 192 2048Kbps Frame Format UNFRAMED or Structured FRAME and selectable with FAS...

Страница 7: ...evel menu structure That function enables you to either Define or change an operating parameter of the system or display the status and alarm of the system 1 4 1 External PC Interaction The rear panel...

Страница 8: ...cally via a VT 100 type Terminal connected to the unit through the CID port on the rear of the unit It can also be configured and managed remotely via a terminal connected to the far end XL GDB 2 3 SH...

Страница 9: ...d Errored Second ES DSL Sync Loss To assure proper synchronization between DSL transceivers a sync word is generated in every frame A sync loss is declared when one or more bits in five consecutive sy...

Страница 10: ...nagement The XL GDB includes alarm to alert you of problem conditions on both the DSL transmission facility and the data interface On the DSL line loss of Sync will activate an alarm independent of th...

Страница 11: ...s The NLB is capable of control activation and deactivation by CID The received signal is sent to the loop during the NLB is activated For example if Near End Loopback is activated at STU C the direct...

Страница 12: ...oopback PayloadLB The Remote Payload Loopback is able to be activated and deactivated through EOC via CID interfaces and is set up inside STU C STU R as close as possible to the network side interface...

Страница 13: ...arkets The following examples illustrate the variety of applications served by the XL GDB SHDSL access system These configurations are but a sampling of the many combinations of interface modules XL G...

Страница 14: ...cal applications include MPEG quality video video conferencing and telecommuting and fast file transfer SHDSL V 35 Router SHDSL V 35 IP Switch Subscriber Copper Wire 3 3 Selectable Data Rates XL GDB i...

Страница 15: ...be interfaced to an Ethernet LAN and used as a multiple user remote Ethernet bridge as shown in figure SHDSL Ethernet Bridge SHDSL ISP Office Ethernet Bridge Switch Hub Ethernet Router Subscriber Copp...

Страница 16: ...t be followed to ensure a proper installation site The installation site should have a 100V to 240V AC power receptacle for the AC adapter The installation site should provide space for adequate venti...

Страница 17: ...cable line cable supplied for connection to telephone jack 4 1 5 Rear Panel As the following figures shown XL GDB with external AC power can be equipped with different interfaces including V 35 E1 T1...

Страница 18: ...can include a DSL line cable which has RJ 48 connector on one side and RJ 11 connector on the other side Appendix A lists the pin assignments for this cable 4 The XL GDB modem unit goes through an ini...

Страница 19: ...onized DSL Off Loop has not synchronized Flash Loop has achieved handshake On User interface is present LNK Off User interface is not present On Performing the maintenance tests TST Flash The maintena...

Страница 20: ...C to configure the system and monitor status and statistics On each screen the available commands and the configurable fields are highlighted Alarm messages can be retrieved by using the supervisory C...

Страница 21: ...Esc until the screen listed above show If the terminal screen is illegible presses the Esc repeatedly for bring up the main menu If all efforts fail make sure the proper cable has been used and the s...

Страница 22: ...E1 T1 LAN DSL Payload rate and PCLK and STU R is incapable of doing so if the loop is connected between STU C and STU R One way to access and set up STU R is throgh remote logon Our examples will focu...

Страница 23: ...nds of combo interface card are selectable E1 T1 V 35 and E1 T1 Combo card E1 T1 V 35 combo card provides three interfaces E1 T1 and V 35 E1 T1 combo card provide two interfaces E1 and T1 In the confi...

Страница 24: ...ata menu shows the current DTE data polarity either normal or inverted by placing an asterisk by the appropriate selection To change the DTE data polarity key in the desired selection and hit Enter 5...

Страница 25: ...nd hit Enter 5 2 1 2 4 CLOCK The clock menu shows the current DTE clock polarity status either normal or inverted by placing an asterisk by the appropriate selection To change the DTE clock polarity k...

Страница 26: ...target SNR Line probing and power Backoff Select the desired item to change DSL settings Note only STU C has the power to set up DSL 5 2 1 3 1 WORST CASE TARGET SNR You can change the SNR Target Margi...

Страница 27: ...Line Probing function 5 2 1 3 3 POWER BACKOFF When the line probing is enable In the power back off menu you can select 1 AUTO or 2 Manual to execute the power Backoff function If you choose the MANUA...

Страница 28: ...on from STU C which shows as follows 5 2 1 4 TRANSMISSION Mode Menu The Transmission mode screen only apprears in the STU R Please use remote logon to access STU R and then enter DSL menu to set up tr...

Страница 29: ...e is set at the STU C Central Site only After configuration the SHDSL system will use the line rate which has been requested by user User can select the desired rate by using or and then pressing the...

Страница 30: ...E configuration it s the same with MAX RATE configuration 5 2 1 6 PCLK The PCLK Primary clock menu is used to configure the primary clock source it shows the current clock source as either internal DT...

Страница 31: ...The screen above shows that the configuration is saved 5 2 1 7 Recall Menu RECALL menu is used to recall the user stored configuration by press appropriate selection and hitting the Enter key The scr...

Страница 32: ...ot change to STU R unit 5 2 2 Surveillance Menu The Surveillance menu consists of three groups of commands Alarm PM Performance and Status The alarm menu will enable user to gather information about c...

Страница 33: ...istory is used to track the occurrence of alarm and when it was cleared for a maximum of 64 entries The entries are recorded onto the history buffer according to the time of occurrence It is recommend...

Страница 34: ...e details about the explanations of the alarm types please refer to Appendix B The state column indicates the current state of the alarm and the count column indicates the number of times this alarm h...

Страница 35: ...alarm count register When the PM counters values is greater than the set threshold an alarm will occur For detailed information about the alarm types please refer to Appendix B 5 2 2 1 4 1 DSL Thresho...

Страница 36: ...n the 15 minutes duration The following screens show how to set the 15 minutes UAS SES and ES threshold 5 2 2 1 4 1 1 1 15 minutes UAS You can enter the your desired value to set the 15 minutes UAS th...

Страница 37: ...your setting press ENTER to quit this screen and save your setting or press ESC to quit without saving your setting 5 2 2 1 4 1 1 3 15 minutes ES In the 15 minutes ES errored seconds screen ES thresho...

Страница 38: ...n could be configured by entering a specified item from 1 to 3 The following screens show how to set the 1 DAY UAS SES and ES threshold 5 2 2 1 4 1 2 1 1 DAY UAS You can enter the your desired vlaue t...

Страница 39: ...ing your setting press ENTER to quit this screen and save your setting or press ESC to suit without saving your setting 5 2 2 1 4 1 2 3 1 DAY ES In the 1 Day ES errored seconds screen ES threshold cou...

Страница 40: ...ur setting press ENTER to quit this screen and save your setting or press ESC to quit without saving your setting 5 2 2 1 4 1 4 ATENUATION In the ATTENUATION screen attenuation threshold could be conf...

Страница 41: ...DSL and CLEAR To show the PM interval counters press 1 and hit Enter CLEAR will erase all PM intervals and counters 5 2 2 2 1 DSL Menu The DSL PM menu consists of Current 15 minutes 900 seconds Curre...

Страница 42: ...ilable LOSWS is the Loss of Synchronization Second For more detailed explanation about the acronyms please refer to Appendix B 5 2 2 2 1 2 Current 1 Day Menu The values shown are the total for the 96...

Страница 43: ...For more detailed explanation about the acronyms listed please refer to Appendix B 5 2 2 2 1 4 Previous 1 Day Menu The values shown are the total for the 96 current 15 minutes counter values Unavailab...

Страница 44: ...CRC Cyclic Redundancy Check ES Errored Seconds SES Serious Errored Seconds and UAS Unavailable Seconds Press ESC to quit this screen 5 2 2 2 2 Clear Menu The clear menu is used to clear all PM buffer...

Страница 45: ...2 2 3 Status Menu Status screen shows the current status of XL GDB standalone Click on CR Enter to browse next page or ESC to exit status menu Page 1 In the page2 Threshold maintenance and status val...

Страница 46: ...do Random Bit Stream and SELFTEST Those items will be explained in detail below 5 2 3 1 Loopback Menu The screen is used to control the local SHDSL equipement s network interface loopback tests Two ki...

Страница 47: ...Disable 2 NearEndLB 3 LocalLB 4 RemoteLB 5 PayloadLB 6 V54LB Note V54 function in configuration menu must be pre configured as enable if to proceed V54LB test For E1 T1 and Ethernet interfaces users c...

Страница 48: ...oceed V54LB test For E1 T1 and Ethernet interfaces users can only activate five loopbacks where V54LB is not available 1 Disable 2 NearEndLB 3 LocalLB 4 RemoteLB 5 PayloadLB For more detailed descript...

Страница 49: ...es incorrect PRBS test code Clicking on E will result in injecting 1 error bit to test The Bit Error Count will be cleared by Clicking on R ReSync 5 2 3 1 4 SELFTEST will result in injecting 1 error b...

Страница 50: ...e menu shows the current date and time as shown above The corresponding is MM for month DD for day YY for year hh for hour mm for minute and ss for second This option must be concluded by Enter to sav...

Страница 51: ...ort s ability to change configuration and maintenance can be disabled by selecting LOCK MENU to on With locked ON user still can operate to obtain the configuration information and status from surveil...

Страница 52: ...e the ID one will have to remote logon to STU C unit to make the changes 5 2 5 Remote Logon To control the remote logon menu key in the desired selection and hit Enter The remote logon is STU C s prev...

Страница 53: ...for the XL GDB101F with an Ethernet interface STU C CENTRAL SITE STU R REMOTE SITE For more detail information please refer to section 5 2 Main Menu V 35 5 3 1 Configuration Menu For more detail info...

Страница 54: ...ormation 5 3 1 4 Primary Clock Menu PCLK The Primary clock menu is used to configure the primary clock source it shows the current clock source as internal the INT ports DTE or DSL by placing an aster...

Страница 55: ...5 3 2 1 4 Threshold Menu Please refer to section 5 2 2 1 4 Threshold Menu for detail information 5 3 2 2 Performance Monitor Menu Please refer to section 5 2 2 2 Performance Monitor Menu for all the d...

Страница 56: ...Please refer to section 5 2 2 3 Status Menu for detail information Page 1 Page 2 5 3 3 Maintenance Menu This menu consists of the maintenance loopback functions Refer to section 5 2 3 Maintenance Men...

Страница 57: ...detail information 5 3 4 1 Date Menu Refer to section 5 2 4 1 Date Menu for detail information 5 3 4 2 Lock Menu Refer to section 5 2 4 2 Lock Menu for detail information 5 3 4 3 Change Password Menu...

Страница 58: ...5 4 Main Menu E1 Interface Following is the menu structure for the XL GDB101E GDB102E with an E1 interface STU C CENTRAL SITE STU R REMOTE SITE 5 4 1 Configuration Menu Note INTF will appear in STU C...

Страница 59: ...u for detail information 5 4 1 2 INTF Menu Combo Interface Card only Refer to section 5 2 1 Configuration Menu for detail information 5 4 1 3 E1 Menu Under the configuration menu of E1 screen Frame Fr...

Страница 60: ...sed by the local unit When in bypass mode time slot zero is added to the number of payload time slots to form the line rate used by the G SHDSL system For example when the user selects time slots 1 2...

Страница 61: ...ransmission protocol allowing information and control data to be embedded in the transmission bit stream 5 4 1 4 DSL Menu DSL menu allows user to change related DSL settings including worst case targe...

Страница 62: ...GET SNR screen In the WORST CASE TARGET SNR You can change the SNR Target Margin by enter your desired Value range from 10 21 press ENTER to save your setting when you want to quit this screen 5 4 1 4...

Страница 63: ...UAL to configure the range of power Backoff the MANUAL screen will appear so that you can set the power back off from 0 to 30 db After your configuration press ENTER to quit with save or ESC to quit w...

Страница 64: ...t your setting and press ESC to quit this screen Press M m to back to main menu 5 4 1 5 Set Rate Menu The data rate for network interface is set at the STU C Central Site only After configuration the...

Страница 65: ...current clock source as internal the E1 interface port or DSL by placing an asterisk by the appropriate selection To change the selection key in the desired selection and hit Enter Only STU C has the...

Страница 66: ...erview to all the configuration and maintenance settings 5 4 2 1 Alarm Menu Please refer to section 5 2 2 1 Alarm Menu for detail information 5 4 2 1 1 History menu The alarm history is used to track...

Страница 67: ...arm and the count column indicates the number of times this alarm has happened 5 4 2 1 3 Clear Menu Please refer to section 5 2 2 1 3 Clear Menu for all the details 5 4 2 1 4 Threshold Menu This menu...

Страница 68: ...5 4 2 2 1 1 Current 15M Menu Please refer to section 5 3 2 2 1 1 Current 15M Menu for details Furthermore see Appendix B for the definition of names 5 4 2 2 1 2 Current 1 Day Menu Please refer to sec...

Страница 69: ...rformance monitoring counters 5 4 2 2 2 1 Current 15M Menu The current 15 minute menu displays the performance monitoring values for the current 15 minutes interval Unavailable Seconds UAS are calcula...

Страница 70: ...erval Unavailable Seconds UAS are calculated by counting the number of seconds that the interface is unavailable LCV is Line Code Violation counted within current 1 Day 5 4 2 2 2 3 Previous 15M Menu T...

Страница 71: ...revious 1 Day menu displays the performance monitoring count for up to 96 intervals each interval is 1 Day long 5 4 2 2 2 2 Total Menu The values shown are the total counter values 5 4 2 2 3 Clear Men...

Страница 72: ...XtendLan XL GDB series User s Guide 5 4 2 3 Status Menu Page 1 Page 2 please refer to 5 2 2 3 Status Menu for detail information 72...

Страница 73: ...4 1 Date Menu Refer to section 5 2 4 1 Date Menu for detail information 5 4 4 2 Lock Menu Refer to section 5 2 4 2 Lock Menu for detail information 5 4 4 3 Change Password Menu Refer to section 5 2 4...

Страница 74: ...s User s Guide 5 5 Main Menu T1 Interface Following is the menu structure for the XL GDB101T GDB102T with a T1 interface at STU C and STU R side STU C STU R 5 5 1 Configuration Menu STU C CENTRAL SITE...

Страница 75: ...ail information 5 5 1 2 INTF Menu Refer to section 5 2 1 1 Unit Menu for detail information 5 5 1 3 T1 Menu For this setup the T1 menu selections consists of Frame Frame Insert Line code and LBO Line...

Страница 76: ...rm the line rate used by the G SHDSL system For example when the user selects time slots 1 2 and 3 as the payload time slots and user selects bypass framing time slot zero is added to the total payloa...

Страница 77: ...it pulse is the smallest when the LBO setting is at 0 133 feet This parameter is used to compensate for the loss that will occur when longer wires are used for T1 transmission The conversion factor be...

Страница 78: ...ted between the two SHDSL units 5 5 1 5 Primary Clock Menu PCLK Primary clock menu is set at STU C and used to configure the primary clock source it shows the current clock source as internal the T1 i...

Страница 79: ...each interval equivalent to 15 minutes The status menu gives the user an instant overview to all the configuration and maintenance settings 5 5 2 1 Alarm Menu Please refer to section 5 2 2 1 Alarm Me...

Страница 80: ...2 2 1 1 Current 15M Menu Please refer to section 5 2 2 2 1 1 Current 15M Menu for details Furthermore see Appendix B for the definition of names 5 5 2 2 1 2 Current 1Day Menu Please refer to section 5...

Страница 81: ...u The current 15 minute menu displays the performance monitoring values for the current 15 minutes interval Unavailable Seconds UAS are calculated by counting the number of seconds that the interface...

Страница 82: ...ailed explanation about the acronyms please refer to Appendix B 5 5 2 2 2 3 Previous 15M Menu The Previous 15 minute menu displays the performance monitoring count for up to 96 intervals each interval...

Страница 83: ...TOTAL menu displays the total performance monitoring count For more detailed explanation about the acronyms listed please refer to Appendix B 5 5 2 2 3 Clear Menu Please refer to section 5 2 2 2 2 Cl...

Страница 84: ...for all the details 5 5 4 Miscellaneous Refer section Miscellaneous for detail information 5 5 4 1 Date Menu Refer to section 5 2 4 1 Date Menufor detail information 5 5 4 2 Lock Menu Refer to section...

Страница 85: ...of a 16 characters by 2 lines Liquid Crystal Display LCD and four keys The keys are designated with 3 4 EXIT and ENTER The EXIT key is used to jump up to the previous level of menu The 3and 4 keys ar...

Страница 86: ...configuration menu is to configure the unit for operation The first line shows current selection Configuration while the second line shows all the selections available one at a time when scrolling Th...

Страница 87: ...XtendLan XL GDB series User s Guide 87...

Страница 88: ...XtendLan XL GDB series User s Guide 88...

Страница 89: ...XtendLan XL GDB series User s Guide 89...

Страница 90: ...TS B DCE 19 25 10 Clear To Send A CTS A DTE D 5 9 Clear To Send B CTS B DTE 13 27 Data Set Ready A DSR A DTE E 6 11 Data Set Ready B DSR B DTE 22 29 Data Terminal Ready A DTR A DCE H 20 12 Data Termin...

Страница 91: ...ta A RD A DTE 2 Request To Send A RTS A DCE 7 Clear To Send A CTS A DTE 8 Data Set Ready A DSR A DTE 6 Data Terminal Ready A DTR A DCE 4 Data Carrier Detect A DCD A DTE 1 E1 and T1 INTERFACE PIN ASSIG...

Страница 92: ...XtendLan XL GDB series User s Guide 92...

Страница 93: ...set threshold value DSLESDay PM Threshold alarm for 1 Day count Alarm will aktive when DSLES value for the 1 Day interval is larger thanset threshold value DTELos Local DTE or Ethernet user interface...

Страница 94: ...s power on if the LED turns into red the DUPLEX mode is activated 10 100 red shows the speed is 10Mbps and green shows the speed is 100Mbps In addition there is also a push button on the 10 100 BaseT...

Страница 95: ...XtendLan XL GDB series User s Guide APPENDIX D Loopback Illustration 95...

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