Ericsson LBI-39001 Manual do Operador descarregar pdf (Página 21)

3.1.3.2.2. Carrier Group Alarm (CGA) Counter Reset (ND4E only)

This procedure is used to reset the CGA counter for each digroup. It should be performed after a MUX power cycle.

1. Verify that the display on ACU(DS1) indicates either ND4E or SYS.

If ND4E is indicated, go to step 2.

If SYS is indicated, go to step 5.

2. Press the right or left arrow key to indicate SYS.

3. Verify that the display on ACU(DS1) indicates SYS:

If YES, go to step 5.

If NO, go to step 4.

4. Press the RTN key until SYS is indicated, and go to step 5.

5. Press the ENTR key.

6. Verify that the display on ACU(DS1) indicates EQPT.

7. Press the right arrow key to indicate CONT, and press the ENTR key.

8. Verify that the display on ACU(DS1) indicates TPMC.

9. Press the right arrow key to indicate RST, and press the ENTR key.

10. Verify that the display on ACU(DS1) indicates CGAA or CGAB.

11. Note: CGAA resets the CGA counter for DG-A and CGAB resets the counter for DG-B. The factory default setting

is CGAA.

Select CGAA or CGAB by using the right or left arrow key, and press the ENTR key.

12. Verify that the display on ACU(DS1) indicates CONT.

13. Press the RTN key to return to SYS.

14. The procedure is completed.

3.1.3.2.3. Enabling Digroup Alarm

The T1 multiplexer contains two independent multiplexers: Digroup A (DG-A) and Digroup B (DG-B).

This procedure describes how to enable each digroup used in the system.

1. Verify that the display on ACU(DS1) indicates either ND4E or SYS:

If ND4E is indicated, go to step 2.

If SYS is indicated, go to step 5.

2. Press the left or right arrow to indicate SYS.

3. Verify that the display on ACU(DS1) indicates SYS.

If YES, go to step 5.

If NO, go to step 4.

4. Press the RTN key until SYS is indicated, and go to step 5.

5. Press the ENTR key.

6. Verify that the display on ACU(DS1) indicates EQPT, and press the ENTR key.

7. Verify that the display on ACU(DS1) indicates DS1, and press the ENTR key.

8. Verify that the display on ACU(DS1) indicates DG-A or DG-B.

9. Note: DG-A is Digroup A and DG-B is Digroup B.

Select DG-A or DG-B by using the left or right arrow keys and press the ENTR key.

10. Verify that the display on ACU(DS1) indicates ENBL or DSBL.

11. Note: ENBL enables the alarm monitor in the appropriate digroup and DSBL disables it in the appropriate digroup.

The factory default setting is ENBL.

Select ENBL or DSBL by using the left or right key, and press the ENTR key.

12. Verify that the display ACU(DS1) indicates EQPT.

13. Press the RTN key to return to SYS.

14. The procedure is completed.

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