Cisco ONS 15454 SDH Especificaciones descargar pdf (Pagina 76)

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3

May 2002

Chapter 1 Alarm Troubleshooting

Alarm Procedures

d. Click Yes on the Confirm Switch dialog box. After the active card goes into standby, the original

standby slot becomes active. This causes the ACT/STBY LED to become green on the former

standby card.

e. If the alarm does not clear after the cross-connect XC10G side switch, perform a software reset on

the reporting card:

f. Display the CTC node view.

g. Position the cursor over the slot reporting the alarm.

h. Right-click to choose RESET CARD.

i. Click Yes at the Resetting Card confirmation dialog.

Wait for the card to reboot.

j. If the alarm persists, physically reseat the reporting I/O card.

1.5.66 SYNCPRI

• Minor, Non-service affecting

A loss of timing on primary reference alarm occurs when the ONS 15454 SDH loses the primary timing

source (reference 1). The ONS 15454 SDH uses three ranking timing references. The timing references

are typically two BITS-level or line-level sources and an internal reference. If SYNCPRI occurs, the

ONS 15454 SDH should switch to its secondary timing source (reference 2). This switch also triggers

the SWTOSEC alarm.

Procedure: Clear the SYNCPRI Condition

Step 1 From the node view, click the Provisioning > Timing tabs.

Step 2 Check the current configuration for the REF-1 of the NE reference.

Step 3 If the primary reference is a BITS input, verify the wiring connection from the ONS 15454 SDH

backplane BITS clock pin fields to the timing source.

Step 4 Check that the BITS clock is operating properly.

Step 5 If the primary reference clock is an incoming port on the ONS 15454 SDH, complete the “LOS (E-N)”

procedure on page 1-40.

1.5.67 SYNCSEC

• Minor, Non-service affecting

A loss of timing on secondary reference alarm occurs when the ONS 15454 SDH loses the secondary

timing source (reference 2). The ONS 15454 SDH uses three ranked timing references. The timing

references are typically two BITS-level or line-level sources and an internal reference. If SYNCSEC

occurs, the ONS 15454 SDH should switch to the third timing source (reference 3) to obtain valid timing

for the ONS 15454 SDH. This switch also triggers the SWTOTHIRD alarm.

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Cisco ONS 15454 SDH Especificaciones Pagina 76