01-07 Configuring BSC Clocks

7 Configuring BSC Clocks

About This Chapter

This topic describes how to configure BSC clocks for the synchronization of boards in eachsubrack.

1. 7.1 Configuring the Line Clock for the GTCSEach GTCS extracts the line clock from the A interface and uses the line clock as itsreference clock.

2. 7.2 Configuring the 8K Reference Clock for the GTCSThis topic describes how to configure the line clock extracted from the A interface as thereference clock for the GTCS. The GEIUA/GOIUA processes the line clock and generatesa 8 kHz clock as the synchronization clock for the GTCS.

3. 7.3 Configuring the Line Clock for the GMPSThe GMPS extracts the line clock from the GTCS through the Ater interface. The line clockserves as the input clock for the GGCU in the GMPS.

4. 7.4 Configuring the System ClockThis topic describes how to configure the system clock. The GGCU processes its inputclock and generates the 8 KHz clock as the transmission synchronization clock and the timesynchronization clock for the boards in the GMPS or GEPS.

5. 7.5 Configuring the 8K Reference Clock for the GMPSThis topic describes how to configure the 8 kHz clock provided by the backplane of theGGCU as the 8K reference clock for the GMPS. The 8K reference clock serves as thesynchronization clock for the boards in the GMPS.

6. 7.6 Configuring the 8K Reference Clock for the GEPSThis topic describes how to configure the 8 kHz clock provided by the panel of the GGCUas the 8K reference clock for the GEPS. The 8K reference clock serves as thesynchronization clock for the boards in the GEPS.

HUAWEI BSC6000 Base ControllerBSC Initial Configuration Guide 7 Configuring BSC Clocks

Issue 01 (2007-09-05) Huawei Technologies Proprietary 7-1

7.1 Configuring the Line Clock for the GTCSEach GTCS extracts the line clock from the A interface and uses the line clock as its referenceclock.

Scenario BSC initial configuration

Mandatory/Optional

Mandatory

NOTE

l Each GTCS must be configured with the line clock.

l The line clock of the GTCS must be configured on the A interface E1 of the subrack.

l On the GEIUA, two line clocks can be configured. On the GOIUA, only one line clock can be configuredand the line clock must be configured on port 0 on the GOIUA.

Prerequisitel The GEIUA/GOIUA in the GTCS is configured.

l The A interface E1 in the GTCS is configured.

PreparationNOTE

This part describes how to configure two line clocks on the GEIUA in the GTCS.

Table 7-1 Example of data to be negotiated and planned for configuring the clock one line 0 forthe GTCS

Parameter Example Source

Line No. LINE0 BSC internal planning

Line Clock Type 8K BSC internal planning

Board Slot No. 20 BSC internal planning

Board Port No. 0 BSC internal planning

Backup Port No. 1 BSC internal planning

Table 7-2 Example of data to be negotiated and planned for configuring the clock on line 1 forthe GTCS





7 Configuring BSC ClocksHUAWEI BSC6000 Base Controller

BSC Initial Configuration Guide

7-2 Huawei Technologies Proprietary Issue 01 (2007-09-05)




Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click the edge of the GTCS. A shortcutmenu is displayed, as shown in Figure 7-1.

Figure 7-1 Subrack shortcut menu

Step 2 Choose Configure Line Clock. A dialog box is displayed, as shown in Figure 7-2.

Figure 7-2 Configuring the clock on line 0



NOTE

When configuring a line clock, you can select a Backup Port No.. When the A interface E1 connectingthe port of the selected Board Port No. incurs a fault, the GTCS can extract the line clock from the Ainterface E1 connecting the port of the selected Backup Port No..

l Board Slot No.: Number of the slot where the GEIUA/GOIUA configured with the A interface E1 islocated.

l Board Port No.: Number of the port connected to one A interface E1 on the GEIUA/GOIUA

l Backup Port No.: Number of the port connected to another A interface E1 on the GEIUA

Step 3 Set the parameters according to the data listed in Table 7-1.

Step 4 Click Add. The configuration of the clock on LINE0 for the GTCS is complete.

Step 5 Repeat Step 1 through Step 2 to configure the clock on LINE1.

Step 6 Select LINE1 and set the parameters according to the data listed in Table 7-2. Figure 7-3 showsthe dialog box.


Step 7 Click Add. The configuration of the clock on LINE1 for the GTCS is complete.

Step 8 Repeat Step 1 through Step 7 to configure the line clock for each GTCS.

----End

7.2 Configuring the 8K Reference Clock for the GTCSThis topic describes how to configure the line clock extracted from the A interface as thereference clock for the GTCS. The GEIUA/GOIUA processes the line clock and generates a 8kHz clock as the synchronization clock for the GTCS.





Mandatory/Optional

Mandatory

Prerequisitel The GSCU in the GTCS is configured.

l The line clock in the GTCS is configured.

Preparation

Table 7-3 Example of data to be negotiated and planned for configuring the 8K reference clockfor the GTCS


8K Reference Clock Type LINE CLOCK BSC internal planning

Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click the edge of the GTCS. A shortcutmenu is displayed, as shown in Figure 7-4.


Step 2 Choose Configure 8K Reference Clock. A dialog box is displayed, as shown in Figure 7-5.



Figure 7-5 Configure GSCU 8K Reference Clock dialog box


Step 4 Click Finish. The configuration is complete.

----End

7.3 Configuring the Line Clock for the GMPSThe GMPS extracts the line clock from the GTCS through the Ater interface. The line clockserves as the input clock for the GGCU in the GMPS.


Mandatory/Optional

Optional

NOTE

l The line clock of the GMPS must be configured on the Ater connection path of the GMPS.

l On the GEIUT, two line clocks can be configured. On the GOIUT, only one line clock can be configuredand the line clock must be configured on port 0 on the GOIUT.

Prerequisitel The GEIUT/GOIUT in the GMPS is configured.

l The GGCU in the GMPS is configured.

l The Ater connection path of the GMPS is configured.




PreparationNOTE

This part describes how to configure two line clocks on the GEIUT in the GMPS.

Table 7-4 Example of data to be negotiated and planned for configuring the clock on line 0 forthe GMPS







Table 7-5 Example of data to be negotiated and planned for configuring the clock on line 1 forthe GMPS







Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click the edge of the GMPS. A shortcutmenu is displayed, as shown in Figure 7-6.


Step 2 Choose Configure Line Clock. A dialog box is displayed, as shown in Figure 7-7.



Figure 7-7 Configuring the line clock

NOTE

When configuring a line clock, you can select a Backup Port No.. When the Ater connection pathconnecting the port of the selected Board Port No. incurs a fault, the GMPS can extract the line clockfrom the Ater connection path connecting the port of the selected Backup Port No..

l Board Slot No.: Number of the slot where the GEIUT/GOIUT configured with the Ater connectionpath is located.

l Board Port No.: Number of the port connected to one Ater connection path on the GEIUT/GOIUT

l Backup Port No.: Number of the port connected to another Ater connection path on the GEIUT.


Step 4 Click Add. The configuration of the clock on LINE0 for the GMPS is complete.

Step 5 Repeat Step 1 through Step 2 to configure the clock on LINE1.

Step 6 Select LINE1 and set the parameters according to the data listed in Table 7-5. Figure 7-8 showsthe dialog box.





Step 7 Click Add. The configuration of the clock on LINE1 for the GMPS is complete.

----End

7.4 Configuring the System ClockThis topic describes how to configure the system clock. The GGCU processes its input clockand generates the 8 KHz clock as the transmission synchronization clock and the timesynchronization clock for the boards in the GMPS or GEPS.


Mandatory/Optional

Mandatory

NOTE

l The system clock has four priorities: priority 1 to priority 4, from the highest to the lowest.

l When the BITS clock is provided, it should be configured as the system clock and enjoys the highestpriority.

l The source number of a clock represents the priority of the clock.

Prerequisitel The GGCU in the GMPS is configured.

l The BITS clock is ready, or the line clock for the GMPS is configured.



Preparation

Table 7-6 Example of data to be negotiated and planned for configuring the system clock


Source No. 1 (corresponding to BITS0) BSC internal planning

2 (corresponding to LINE0) BSC internal planning

3 (corresponding to LINE1) BSC internal planning

Source Type BITS0 BSC internal planning

LINE0 BSC internal planning

LINE1 BSC internal planning

Source Sub-type 2M_Hz (corresponding toBITS0)

BSC internal planning

8K_HZ (corresponding toLINE0)


8K_HZ (corresponding toLINE1)


Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click BSC6000. A shortcut menu isdisplayed, as shown in Figure 7-9.

Figure 7-9 Shortcut menu in the Management Tree

Step 2 Choose Configure System Clock. A dialog box is displayed, as shown in Figure 7-10.




Figure 7-10 Configuring the system clock

CAUTION Source Type and Work Mode cannot be configured in one operation.You have to configure them separately. After configuring Source Type, exit the configurationwizard, and then enter the configuration wizard again to configure Work Mode.



----End

7.5 Configuring the 8K Reference Clock for the GMPSThis topic describes how to configure the 8 kHz clock provided by the backplane of the GGCUas the 8K reference clock for the GMPS. The 8K reference clock serves as the synchronizationclock for the boards in the GMPS.


Mandatory/Optional

Mandatory

Prerequisitel The GSCU in the GMPS is configured.

l The GGCU in the GMPS is configured.



l The system clock is configured.

Preparation

Table 7-7 Example of data to be negotiated and planned for configuring the 8K reference clockfor the GMPS


8K Reference Clock Type GGCU Backplane BSC internal planning

Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click the edge of the GMPS. A shortcutmenu is displayed, as shown in Figure 7-11.









----End

7.6 Configuring the 8K Reference Clock for the GEPSThis topic describes how to configure the 8 kHz clock provided by the panel of the GGCU asthe 8K reference clock for the GEPS. The 8K reference clock serves as the synchronization clockfor the boards in the GEPS.


Mandatory/Optional

Mandatory

Prerequisitel The GGCU in the GMPS is configured.

l The GSCU in the GEPS is configured.

l The system clock is configured.



Preparation

Table 7-8 Example of data to be negotiated and planned for configuring the 8K reference clockfor the GEPS


8K Reference Clock Type GGCU Backplane BSC internal planning

Procedure

Step 1 On the BSC6000 Local Maintenance Terminal, right-click the edge of the GEPS. A shortcutmenu is displayed, as shown in Figure 7-13.









Step 5 Repeat Step 1 through Step 4 to configure the 8K reference clock for each GEPS.

----End



Documents

01-07 Configuring BSC Clocks