Alcatel Canada 31T28A04A22A Alcatel 7390 LMDS Broadband Wireless System - 31GHz User Manual 3cc12426aaaaTQbja01

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Base Station User Manual 8 0f 14

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Base Station User Manual 8 0f 14

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 171/346234The static zone represents the portion of the bandwith allocated to static services, with display of bothbit rate types: leased line (LL) and static IP (ATM) bit rate.The dynamic zone represents the portion of the bandwidth allocated to the dynamic services: thedynamic IP services.Note : The available bit rate depends on the traffic type allocated: leased lines, static or dynamic IP.Note : The dynamic zone is the zone remaining available, corresponding to the total bandwidth minusthe static zone; the static zone corresponds to the static IP service bit rate.The overbooking factor limit (OFL) is a value defined by the operator (until 10 as maximum) and canbe modified at any time depending on radio resource requirements: if the operator wishes to offer moreservices than the system can physically provide simultaneously on the available bandwidth, he definesthis value which will represent a risk level of dynamic degraded service.Note : When OFL = 1 (default value), it corresponds to the system physical limit assigned to the dyna-mic zone (= width of bandwidth).If OFL = 2, double the dynamic zone physical bandwidth can be used for dynamic IP services.IP traffic is measured according to «ATM» Rate = 66.5 Kbps, whereas LL is measured with rate = 64 KbpsOverbooking limitCurrent overbooking (orange zone): < 1 means that there is no overbooking

172/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01234When the dynamic traffic (green color) is overbooked, green is changed to orange (see next screen).

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 173/3462344.8 – NE managementAs soon as the 7390LT is connected to the NE, it keeps a log of all the events taking place between theAgent (NE) and the Manager (7390 LT) for the corresponding part of the supervised NE. This supervisiontool is mainly used as a log file to be used for maintenance purpose (see Chapter 6 – Operation andmaintenance).4.8.1 – NE SupervisionTo Start or Stop the supervision of the NE:NE supervised means that the agent sends to the manager all the events related to the network element.When the NE is supervised, the "Start NE Supervision" button is disabled.When the NE is not supervised, the "Stop NE Supervision" button is disabled. The manager has lostits synchronization with the agent. BS and NT are not supervised and events are not received.Starting the NE supervision implies a total NE upload, because it is the only way to align again the LTand the MIB agent.To Allow or Inhibit the alarms of the NE:NE Alarms allowed means that all the alarms present in the NE equipment will be reported to the LTmanager.When the NE alarms are allowed, the "Allow Alarms NE" button is disabled.When the NE alarms are inhibited, the "Inhibit Alarms NE" button is disabled. Moreover, neither alarmwindow is present in the 7390LT nor alarm code colour is showed in the main window.Click on the icon to start the supervision of the NE.Click on the icon to stop the supervision of the NE.Or else, open the NE Supervision pull-down menu and choose the item Start NE Supervision or Stop NE Supervision.Click on the icon to allow receiving the alarms of the NE.Click on the icon to inhibit receiving the alarms of the NE.Or else, open the NE Supervision pull-down menu and choose the item Allow Alarms NE or Inhibit Alarms NE.

174/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.8.2 – Events logNote: the events log (in read only) is presented in reverse chronological order. The most recent eventis at the top of the list. The circular list can contain up to 5000 events.Index: this is the event number: an incremental cyclic counter is activated each time an event takesplace.Start date: time-stamping of the event (format: day/month/year, hour/minute/second).Trans ID: transaction number allowing the action which occurred on the system and the different eventsresulting from it, to be linked; in the example above, the action corresponding to event number 294corresponds to 5 events (see groups ID Trans. 165).Object: indicates the part of the system affected by the event (format: designation#equipment IDfollowed by port number).Type: abbreviation (which key is permanently displayed at the bottom of the window) of the event type:alarm, deletion, creation, etc.Alarm ID (if the event type is an alarm): alarm identifier corresponding to its coming out number(chronological).The line is displayed in the color related to the alarm: when the alarm ends, the same line will bedisplayed (with an incrementing Index) in green to symbolize the end of alarm.Probable cause (field associated with the alarm): description of the cause of the problem from the ASAP(giving the severity for a given probable cause).Request status: request status in the form of abbreviation whose legend is displayed at the bottom ofthe screen. This is to identify the way a group of events has been terminated (same lD Trans.); thetransaction status of the last event of a same group is therefore ok if the action succeeded.Note: ends of alarm are displayed in green.To access the events log:– click on the button shown here (on the 7390 LT main screen),– or, open the Management pull-down menu and choose View Event Log.Click here to print the events log on the default printer (see § 4.1.4 – Printing)Click here to quit the events listKey of the differents event types (see § 4.8.4 – Event log legend)

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 175/3462344.8.3 – Historical Event logThis function allows all or certain events, listed in the events log since the last connection, to be retrieved.4.8.3.1 – Accessing the historical event logThe screen below is displayed:To access the historical event log:– click on the button shown here (in the 7390 LT main screen),– or, open the Management pull-down menu and select the Historical Event Displaysection.Click here to access search of items to be retrieved from the historical event log (cf:§ 4.8.3.2 –)Click here to refresh the historical display of the event log according to the selection criteria displayed at the bottom of the screen Click here to print the event list on the default printer (cf: § 4.1.4 –)Key of the different possible types of event (cf: § 4.8.4 – Click here to quit the Historical Event Log screenClick here to save the historical event log file (cf: § 4.8.3.3 –

176/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.8.3.2 – Searching for items in the historical event logThe following screen is displayed:Note: The search process can take several minutes to start after launch depending on the number ofevents listed.Two types of search criteria are available to retrieve the events in question from the entire historicalevent log since the last connection:– event attributes: object, event type and transaction status linked with the event.Note: The selection of a star in the "attribute selection" fields allows all the items of the list for the sec-tion concerned to be taken into account (no defined criteria).To access the events search, click on the button shown here (in the Historical event logscreen).

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 177/346234–Time periods.Note: By default, no date is selected: all dates are taken into account.The tabulation key also allows you to move from one field to another.Note: The chosen selection criteria are permanently displayed at the bottom of the Historical EventLog screen.4.8.3.3 – Historical event log item backupThe following screen is displayed:To perform backup of events corresponding to the defined search criteria (see§ 4.8.3.2 – Searching for items in the historical event log), click on the buttonshown here (in the Historical Event Log screen).1- Click on the arrow to select the disk on which the event file is to be saved2- Select the directory where the event file is to be savedDisplay of file names already present in the selected directory3- Click in this field to enter the backup file nameClick here to start the back upClick here to cancel the backupCheck one of the 3 sections to define the backup content with regard to the history displayed in the Historical Event Log screen (cf: § 4.8.3.1 –). This filter is added to the previously defined criteria (cf: § 4.8.3.2 –)

178/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.8.4 – Event log legendThe following legend is displayed:To access the legend of events listed in the Event Log screen, click on thebutton shown here (at the bottom of the Event Log and Historical Event Logscreens).Click here to quit the Event Log Legend screen

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 179/3462344.9 – Interface parameters4.9.1 – ATMFor the 155 Mbit/s version:For the 34 MBit/s version:Note: For the 34Mbit/s version, the Medium Type configuration cannot be modified.To access the parameters of the ATM link, click on the button shown here (in the BSdetails screen toolbar).The following screen is displayed:To make the ATM operational, click on the arrow to scroll down the list and select the medium type used for the ATM link: sdh or sonet (by default unknown)The numbers of bytes respectivelly allow the Vci and the Vpi to be encoded (Vci bytes fixed to 10 and vpi bytes fixed to 6)ATM port numberATM transport medium typeLine codingLine typeATM port statesATM cell coordinatesmedium bit rateunused parameterATM port numberATM transport medium typeLine codingLine typeATM port statesATM cell coordinatesmedium bit rateunused parameterThe numbers of bytes respectivelly allow the Vci and the Vpi to be encoded (Vci bytes fixed to 10 and vpi bytes fixed to 6)

180/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.9.2 – IP addressesNote: To configure IP addressing on all the interfaces for connection to the manager (OS or LT), theBS has two physical interfaces to choose from: the ATM port (fiber optic) and Ethernet port(10bT: J102).Note: The router is the first equipment to be connected to the BS, at the external network side.Note: The encapsulation type for the management link is IP over ATM. The IP cross-connection ser-vice uses a different type of encapsulation.To access the parameters of the IP addresses of the BS, click on the button shown here(in the BS Details screen toolbar).The following configuration screen is displayed, then its two main parts detailed below:Click here to cancel the modificationsClick here to return to the BS details screenClick here to apply the modificationsClick here to enter the 4 bytes of the IP address of the BS at the ATM interface Click here to enter the 4 bytes of the BS Interface IP Mask at the ATM interface Click here to enter the 4 bytes ofthe address of the router of theBS at the ATM interface Click here to enter the VCL coordinates (supplied by the provider) for the management link between a manager and the BSThe Vpi and Vci values must be respectively selected in ranges 0-30 and 0-1023 (except 1 to 4 values for Vpi) Click here to select the VCL Bit Rate (64, 128,256, 512 kbps)

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 181/3462344.9.3 – Network addressesNote: In order to allow modifications in this Network address screen the "Remote Interface Mode" boxof the IP addresses screen (see § 4.9.2 – IP addresses) must not be selected.To access the settings for configuring the interfaces, click on the button in theBS Details screen toolbar, shown here.This involves informing the system of the interfaces used by the managers.The manager is the network supervision software (7390 LT or NSM).FOR REMOTE LT: INTERFACE ROUTE MUST BE DEFINED IN "IP ADDRESS" DIALOG BOX (§ 4.9.2 –) BEFORE ENTERING THE MANAGER IP ADDRESS INSIDE THE "NETWORK ADDRESS" WINDOWClick here if the system is in WAN network type to lock the IP address modificationClick here to enter the 4 bytes of the BS interface IP mask at the Ethernet InterfaceClick here to enter the 4 bytes of the IP address of the router of the BS at the Ethernet InterfaceClick here to enter the 4 bytes of the IP address of the BS at the Ethernet InterfaceBoth addresses together define the subnetwork the manager connected to route 1 belongs toTarget Network mask used on route IP address of manager connected to route 1Click here to scroll down the list and select the type of interface used on the BS to connect the local manager (ETH) (no by default)Click here to scroll down the list and select the type of interface used on the BS to connect the remote manager (ATM)IP address of manager connected to route 2Target Net w o r k ma s k used on route 2

182/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.10– Environment and equipment incident management4.10.1– AlarmsAlarms allow incidents occuring on the equipment managed by the 7390 LT to be reported to thesupervisor.For complete alarm management and, in particular, the corrective actions to be performed, refer to § 6.4– Corrective maintenance of this manual.4.10.1.1– Current alarms synthesisThe current alarms synthesis window is opened automatically for the first connection and remains activeas long as the connection to the NE is supervised.4.10.1.2– Alarms color codeA color code has been adopted to symbolize the five critical levels:–red: critical alarm;–orange: major alarm;–yellow: minor alarm;–light blue: warning alarm;–mauve: indeterminate alarm.Note: Green is used to symbolize no alarm or end of alarm in several screens: BS representation,Alarms list and Event log.Note: There is one color per line in accordance with the ASAP data table (see § 4.10.2 – Alarms cor-respondence tables (ASAP)).This window offers a view of the number of active alarms in the systemin terms of critical levels. There are five levels: Critical / Major / Minor/ Warning / Indeterminate.Note: the highest level of criticality is displayed at the bottom right of thegeneral status bar (see § 4.2.2 – Accessing and running 7390 LT).The final line, "Total", totalizes the number of active alarms.By double-clicking on one of the levels, the list of same level alarms isdisplayed; by double-clicking on the last line, the list of all the alarms isdisplayed (see § 4.10.1.3 – Alarms list).

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 183/3462344.10.1.3– Alarms list4.10.1.4– Sound adjustment of alarmsIt is possible to associate or disassociate the emission of a sound warning for alarms corresponding toa certain critical level:To display the alarms list at any time:– click on the button shown here (in the 7390 LTmain screen),– or, open the Windows pull-down menu and choose the line Current alarmssynthesis,– or, open the Alarms pull-down menu and choose the item Alarms List.To access the alarm sound parameters:– click on the button shown here (on the 7390 LT main screen),– or, open the Alarms pull-down menu and choose the item Sound Parameters.Alarm number: number increases incrementally in order of appearanceTime-stamping of the alarm (format: day /month/year/hours/minutes/seconds)The part of the system affected by the alarm (format: name and number)Probable cause of the alarmNumber of the equipment to which the alarm is assignedAlarm typeClick here to print the list of alarms on the default printer (cf: § 4.1.4 –)

184/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.10.2– Alarms correspondence tables (ASAP)The correspondence between the alarms and the severity levels is managed by an ASAP table. Thereare two types of correspondence tables:– one table for alarms relating to the BS ("BS ASAP"),– one or several tables for alarms of the NTs ("NT Default" and customized tables).To view the correspondence tables: - click on the button shown here, in the 7390 LT main screen,or- open the Alarms pull-down menu and choose the item Alarm list,The following screen appears:Check No to deactivate the sounds associated with the alarmsCheck Yes to activate the sounds associated with the alarmsChoose the critical level starting from which the sound warning should be emittedClick here to modify an ASAP tableQuick search possibility (cf: § 4.1.2.4 – )Click here to create a customized NT ASAP tableClick on the arrow to select the ASAP table to be displayed: «BS ASAP», NT Default or the table created by the operatorID number of alarmsClick here to delete an ASAP tableAlarm severity assigned to each probable alarm causeClick here to quit the correspondence tables display windowAlarm designation corresponding to the «Probable cause» column of the alarms list (cf:§ 4.10.1.3 –) and the list of events (cf:§ 4.8 –)

186/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.10.2.3– Deletion of ASAP table for NTThe following screen appears:Note: You can only delete customized ASAP tables (you cannot delete the "BS ASAP" or the "ASAPNT default" tables).Note: You cannot delete a table assigned to at least one NT. You have to assign another table to thisNT before (see § 4.6.3 – NT Details).To delete a customized ASAP table, click on the button shown here (on the ASAPList screen).

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 187/3462344.10.3– Alarms and remotesIn addition to alarms reporting problems for the system and occuring on the equipment (see § 4.10.1 –Alarms), two configurable types of device are available to the operator for notification and remotesolving of problems linked to the cabinet environment (DBS).These devices are: sensors (fire detection, etc.) and remote controls (extinguisher, etc.) present in thevicinity of the cabinet.Sensors are used for problem detection (see alarms § 4.10.1 – Alarms), and remote controls forproblem correction.– alarms: see § 4.10.3.1 – Alarm characteristics– remotes: see § 4.10.3.2 – Remote characteristicsNote: Default external state is ON for alarms and OFF for remotes.To access the alarms (sensors) and remotes list, click on the button shown here (BSDetails screen toolbar) (see § 4.5 – Base Station Supervision).Select a line and click on this button (remote details) or double click on a line to display the details of the selected equipment.Alarms and remotes external state Designation of alarms and remotes

188/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.10.3.1– Alarm characteristicsNote: The operator must choose the probable cause from the list of alarms relevant to the BS.This list includes three types of alarm:• X721 standard environment alarms,• A7390 system specific alarms,• environment generic alarms:• Environment: critical, • Environment: urgent, • Environment: not urgent.The operator will therefore choose from the first group of alarms and, if necessary, from the lastgroup of alarms.Click here to modify the alarm designationClick here to indicate alarm locationClick here to apply changes to sensor characteristicsAlarm external state reminder: ON /OFFClick here to choose the probable cause which will be affected to this alarm when its state is set on ON (see External state section): (see Note below)Sensor polarity: active if the signal front is hight or low (not subject to change from the 7390LT)

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 189/3462344.10.3.2– Remote characteristics4.11– Performance4.11.1– Radio PerformanceThe Radio Performance feature gives the quality of the internal radio transport.To access the radio performance:– click on the button shown here (in the main screen toolbar),– or else, open the Performance pull-down-menu and choose the first item:Radio PerformanceClick here to modify the remote designationClick here to indicate remote locationClick here to apply changes to remote characteristicsSensor polarity: active if the signal front is hight or low (not subject to change from the 7390LT)Remote control external state reminder: ON /OFF can be changed in the External Points List screen(cf: § 4.10.3 – ) Click here to monitor the NT and Radio LinkClick here to stop the monitoring over the NT and Radio LinkClick here to return to the BS Details screen

190/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.11.1.1– Start Radio PerformanceStart Radio Performance for a NT Once you have applied monitoring on one NT, you can close the screen.Start radio performance for a radio linkOnce you have applied monitoring on one radio link, you can close the screen.Click here to scroll down the list and select the NTClick here to apply the modificationsClick here to cancel the selectionsClick here to quit the Radio Performance Start screenClick here to quit the Radio Performance Start screenClick here to scroll down the list and select the Radio Link

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 191/3462344.11.1.2– Monitoring the Radio PerformancesMonitoring the Radio Performance for a NTThis screen is read only.The Radio Performance counters are sent by the agent to the LT each 5 seconds. When the data arenot received, the counter are colored in white.When the mouse is positioned over, the graphical boxes indicate the hour and value for this time. Inany case the edit-boxes indicate the hour and value of the last data received.The graphic scales are dynamic (they change depending on the coming values), but they are symme-trical (they always show the same value, positive or negative).Last radio entry duration is the number of seconds the NT takes to become operational Radio Entry Status can have two values: Tracking (when the NT is active and enabled) or Acquisition (when the NT is out of service)Click on these tabs to display the chosen Radio LinkClick on these tabs to display the chosen NT

192/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01234DBS distance NT indicates the distance between the DBS and the NT, in metersClick on these tabs to display the chosen Radio LinkClick on these tabs to display the chosen NT

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 193/346234Monitoring the Radio Performance for a Radio Link This screen is read only.

194/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.12– Client services: leased linesThere are three types of service: Leased Lines (LL), IP lines (see § 4.13 – Client services: IP links) andCircuit Emulation Services (CES): see § 4.12.6 – Circuit emulation (CES).For service traffic supervision, refer to § 4.7 – Radio supervision and parameters. Forsynchronization, refer to § 4.5.4 – Clock synchronization parameters.The leased lines cross-connections managed by the 7390 LT are declined in 4 types: E1 traffic (see §4.12.1 – Leased lines E1), X21 (see § 4.12.2.2 – Access to the X21 link management), T1 (see § 4.12.3– Leased lines T1) and ISDN (see § 4.12.4.2 – Presentation of the ISDN link management screen).4.12.1– Leased lines E1A E1 cross-connection is a link between a TNT board of the BS linked to the TDM network (or ATM ifthe CES is used: see § 4.12.6 – Circuit emulation (CES)) and the NT terminal (E1 port) linked to the userperipheral devices.The maximum flow offered on a E1 link is a symetrical 2.048 Mbit/s.4.12.1.1– Procedure of creation of an E1 link (E1 cross-connection)The implementation steps for an E1 cross-connection are as follows:1. Selection and configuration of the ports for cross-connect: BS side (TNT board) (see § 4.12.1.4 –Ports configuration of TNT board (BS));2. Selection and configuration of the ports for cross-connect: NT side (see § 4.12.1.5 – Configurationof NT ports);3. Cross-connect between time-slots of selected ports: (see § 4.12.1.6 – Cross-connect);4. Creation of an E1 link: (see § 4.12.5 – Principles of management common to all types of leasedlines);4.12.1.2– Access to the E1 link managementTo access E1 lines management:– click on the button shown here (in the main screen toolbar),or else,– open the Service pull-down menu and choose the first item: E1.

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 195/3462344.12.1.3– Presentation of the E1 link management screenClick here to access the TNT ports configuration of the selected equipmentClick here to access the NT ports configurationE1 cross-connection creationDelete the chosen linkAllow to modify the name of the selected cross-connetion (cf: § 4.12.5.4 – )Cancel the current cross-connectLocking / unlocking the administrative state (cf: § 4.12.5.5 – List of E1 links (cf: § 4.12.5.1 –)Quick search (cf: § 4.1.2.4 Display of the 16 E1 ports of the chosen TNT:Input / output characteristics of the selected TNT boardCross-connect zoneIndicator of cross-connect position1 IT = 64 kbpsQuick search (cf: § 4.1.2.4 –)Display of the 2 E1 ports of the chosen NT (the grayed out ports are not accessible to the leased lines)- «E1» port: not configured- «G703» port: unstructured- «G704» port: structured(cf § 4.12.4.3 – and § 4.12.3.5

196/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.12.1.4– Ports configuration of TNT board (BS)The screen listing the E1 ports of the TNT is displayed:Note: The modification of the port configuration is possible if the port state is locked.Note: Unlocking a TNT port state is only possible when you have configured it.Next, access the ports configuration of the TNT board selected by clicking on the firstbutton, shown here (on the toolbar of the E1 cross-connections screen).On the E1 cross-connection screen (see § 4.12.1.3 – Presentation of the E1 link management screen ), select first of all, the TNT board concerned by the cross-connect by scrolling The port labels are to be entered in the TNT Ports Configuration screen: (cf: § 4.5.3.2 –)Port type: G703, G704 (initially E1)Type of line code: hdb3 (one choice)Check box to lock / unlock the port’s administrative state. By default, the port is locked.Port configuration modification is only possible when the port is lockedScroll down the list to configure the port: structure or unstructured (initially: not configured)Appears if the configuration state is structured; to be checked if the corresponding hardware uses CR4

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 197/3462344.12.1.5– Configuration of NT portsNote: The modification of the port configuration is possible if the port state is locked.Note: Unlocking a NT port state is only possible when you have configured it.Next, access the ports configuration of the chosen NT by clicking on the second button,shown here (on the toolbar of the E1 cross-connections screen).On the E1 cross-connection screen (see § 4.12.1.3 – Presentation of the E1 link management screen),Click on the arrow to scroll down the NT list declared, then select the NT concerned by the cross-connect.The ports label is to be entered in the NT Details screen (see § 4.6.2 Check box to lock / unlock the port’s administrative state; by default, the port is lockedType of line code: hdb3Scroll down the list to configure the port: structured or unstructuredSee § 4.11.1 –Click here to confirm a modificationClick here to cancel modificationsClick here to return to the cross-connections screenPort type: G703, G704

198/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.12.1.6– Cross-connectCross connection consists in matching the time-slots (TSs) of a configured port of the TNT board withthose of a configured port of the NT.Note: To make an E1 "cross-connection", E1 type TNT ports can be cross connected with E1 or X21type NT ports.There are two types of cross-connect: between structured ports and between unstructured ports.If the operator wants to offer a 2 Mbps contract, the cross connnection must be unstructured: using aG703 TNT port (32 available TSs, global selection of TSs).If the operator wants to offer a less than 2 Mbps contract, the cross connection must be structured:using a G704 TNT port (31 available TSs, individual selection of TSs).– Unstructured case:In this case, the maximum bit rate is supplied because all the selected TNT port time-slots are connectedto the NT port time-slots.– Structured case:To implement the cross-connect in structured case, proceed in the same way as for non-structured ports,but this time select the time-slots individually.Thirty one time-slots can be brought into play in a E1 cross-connection (the first time-slot (grayed out) isnot accessible because reserved for synchronization). The maximum bit rate is 31*64 kbps.The cross-connect arrows offer you guidance for dragging the TNT slots to the available NT slots; if thecurrent cross-connect corresponds to "unauthorized" ones, an error message is displayed at the bottomof the window and the cross-connect arrows indicate the NT time-slots to which the cross-connect isdirected.1 Select the unstructured ports that you wish to connect2- Select the block of time slots at the TNT by pressing a time slot of the of the time slot block at the TNT 4- Release the buttons: all the slots are selected5- Confirm the cross-connect by creating the cross-conection (see § 4.12.1.3 –)3- Press the CTRL key while clicking on the left button of the mouse on a TNT time slot and slide the mouse pointer towards NT

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 199/346234The slots of a real cross-connection (following the creation phase: see § 4.12.5.3 – Creation of a cross-connection) are colored in green.Note: It is not mandatory to create cross-connections with consecutive time slots. In that case, youmust match the first group of TNT time slot with a group of NT time slot, and then match thesecond group and so on.Note: It is not possible to «cross» the links between TNT and NT time slots. Example on the above con-figuration link between TNT-TS 10 and TNT-TS 3 not authirized.4.12.1.7– GroomingSeveral NTs can be fed from a single TNT board and a single E1 port. This is known as "grooming".4.12.2– Leased lines X21A X21 cross-connection is a link between a TNT board of the BS linked to the TDM network (or ATM ifthe CES is used: see § 4.12.6 – Circuit emulation (CES)) and the NT terminal (X21 port) linked to theuser peripheral devices.The maximum flow offered on an X21 link is 2 Mbps.not authorized

200/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 012344.12.2.1– Creation procedure of an X21 linkThe implementation stages for an X21 cross-connection are as follows:1. Selection and configuration of the ports for cross-connect: BS side (TNT board): see § 4.12.2.4 –Ports configuration of TNT board (BS);2. Selection of NT ports for cross-connect: see § 4.12.2.5 – Port selection on the NT side;3. Cross-connect between time-slots of selected ports: see § 4.12.2.6 – Cross-connect;4. Creation of an X21 link: see § 4.12.5.3 – Creation of a cross-connection;4.12.2.2– Access to the X21 link managementTo access X21 line management:4.12.2.3– Presentation of the X21 link management screenAs the other sections are the same as that of the E1 leased lines screen, refer to § 4.12.1.3 –Presentation of the E1 link management screen.4.12.2.4– Ports configuration of TNT board (BS)As the TNT board port configuration principle is the same as that of E1 leased lines, refer to § 4.12.1.4– Ports configuration of TNT board (BS).In case of 32 TS transmission, the TNT port has to be unstructured.– click on the button shown here (in the main screen button bar),or else,– open the Service pull-down menu and choose the item: E1.

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