Table Of Contents
Maintain the Node
Before You Begin
F145 Initiate a Manual Switch on a Port in a 1+1 Protection Group
F146 Initiate a Force Switch on a Port in a 1+1 Protection Group
F147 Clear a Manual or Force Switch in a 1+1 Protection Group
F148 Apply a Lockon in a 1+1 Group
F149 Apply a Lockout in a 1+1 Group
F150 Clear a Lockon or Lockout in a 1+1 Protection Group
F151 Initiate a Manual Switch on an SNCP Circuit
F152 Initiate a Force Switch to an SNCP Circuit
F153 Initiate a Lockout on an SNCP Path
F154 Clear a Switch or Lockout on an SNCP Circuit
F155 Clean Fiber Connectors
F156 Clean the Fiber Adapters
F157 Manually Switch the Node Timing Reference
F158 Clear a Manual Switch on a Node Timing Reference
Maintain the Node
This chapter provides procedures for maintaining the CiscoONS15600SDH.
Before You Begin
Before performing any of the following procedures, investigate all alarms and clear any trouble conditions. Refer to the CiscoONS15600 SDH Troubleshooting Guide as necessary. This section lists the chapter procedures (NTPs). Turn to a procedure to view its tasks (DLPs).
1. 
F87 Inspect and Replace the Disposable Air Filter—Complete as needed.
2. F88 Back Up the Database—Complete as needed.
3. F89 Restore the Database—Complete as needed.
4. F90 Initiate a Manual or Force Switch in a 1+1 Protection Group—Complete as needed.
5. F91 Inhibit Protection Switching in a 1+1 Protection Group—Complete as needed.
6. F92 Initiate an External Switching Command on an SNCP Circuit—Complete as needed.
7. F93 Offload the Security Audit Trail Log—Complete as needed.
8. F94 Clean Fiber Connectors and Adapters—Complete as needed.
9. F95 Reset the TSC Card Using CTC—Complete as needed.
10. F96 Change the Node Timing Reference—Complete as needed.
NTP-F87 Inspect and Replace the Disposable Air Filter
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Purpose
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This procedure ensures that the air filter is free from dirt and dust to allow optimum air flow and prevent dirt and dust from entering the ONS15600SDH.
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Tools/Equipment
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Extra filters, pinned hex key
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Prerequisite Procedures
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None
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Required/As Needed
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Inspection required every 30 days. Replace as needed.
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Onsite/Remote
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Onsite
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Security Level
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None
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Step1 Verify that you are replacing a disposable air filter. The disposable filter is made of spun white polyester that is flame retardant.
Step2 Remove the front door of the shelf assembly. If the front door is already removed, continue with Step3.
a. Locate the latches on the bottom left and right sides of the door.
b. Pull each latch outward to release the latch.
c. Swing the door up to open it.
d. Lift the door off its hinge pins and remove it. Set the door aside so you can reinstall it after you complete this procedure.
Step3 Gently remove the air filter from the shelf assembly ( Figure14-1). Be careful not to dislodge any dust that might have collected on the filter.
Figure 14-1 Removing a Disposable Air Filter (Front Door Removed)
Step4 Visually inspect the white filter material for dirt and dust.
Step5 If the air filter shows a heavy concentration of dirt and dust, replace it with a new filter by sliding the new filter into the top of the shelf assembly. Make sure that the front of the filter is even with the front of the shelf assembly and that the air flow indicators on the filter point downwards.
Step6 Reinstall the front door of the shelf assembly.
a. Insert the front door (removed in Step 2 ) into the hinge pins on the shelf assembly.
b. Lower the door onto the face of the shelf assembly.
c. Pull the metal latches on the door outward and gently push the door toward the shelf, making sure no optical cables are caught or pinched in the door.
d. Click the latches in place and release.
Stop. You have completed this procedure.
NTP-F88 Back Up the Database
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Purpose
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This procedure stores a backup version of the Timing and Shelf Controller (TSC) software database on a workstation running CiscoTransport Controller (CTC) or on a network server.
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Tools/Equipment
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None
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Prerequisite Procedures
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None
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Required/As Needed
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Required. Cisco recommends performing a database backup at approximately weekly intervals and prior to and after configuration changes.
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Onsite/Remote
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Onsite or remote
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Security Level
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Superuser
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Note You must back up and restore the database for each node on a circuit path in order to maintain a complete circuit.
Note The following parameters are not backed up and restored: Node name, subnet mask and gateway, and Internet Inter-ORB Protocol (IIOP) port. If you change the node name and then restore a backed up database with a different node name, the circuits will map to the new node name. Cisco recommends keeping a record of the old and new node names.
Step1 Complete the "DLP-F36 Log into CTC" task at the node where you are performing the database backup. If you are already logged in, continue with Step2.
Step2 In node view, click the Maintenance > Database tabs ( Figure14-2).
Figure 14-2 Backing Up the TSC Database
Step3 Click Backup .
Step4 In the Database Backup window, click Browse .
Step5 In the Save window, navigate to a local PC directory or network directory and type a database name (such as database.db) in the File name field.
Note The database file must have a .db extension.
Step6 Click Save .
Step7 In the Database Backup window, click the Alarms check box, and/or Performance check box to choose these database items in addition to provisioning information ( Figure14-3).
Note Provisioning is a default component of the backup file.
Step8 Click OK .
Step9 If you are overwriting an existing file, click OK in the Database Backup Confirmation dialog box.
Step10 Click OK in the Database Backup window.
Figure 14-3 Database Filename Entered and Backup Options Checked
Stop. You have completed this procedure.
NTP-F89 Restore the Database
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Purpose
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This procedure restores the TSC software database.
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Tools/Equipment
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None
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Prerequisite Procedures
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F88 Back Up the Database
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Superuser
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Note The following parameters are not backed up and restored: Node name, subnet mask and gateway, and IIOP port. If you change the node name and then restore a backed up database with a different node name, the circuits will map to the new renamed node. Cisco recommends keeping a record of the old and new node names.
Note You need separate backups for each node in a circuit path to be able to restore the entire circuit.
Note The ONS15600SDH does not allow a database from one node to be restored to another node. A database from one node can be installed on another node by using the Configure Node option in the Database pane. See the "NTP-F30 Configure a Node Using an Existing Database" procedure on page4-22.
Step1 Complete the "DLP-F36 Log into CTC" task at the node where you are performing the database restore. If you are already logged in, continue with Step2.
Step2 In node view, click the Maintenance > Database tabs ( Figure14-4).
Figure 14-4 Restoring a Backup TSC Database to the Node
Step3 Click Restore .
Step4 In the Database Restore window, click the Alarms check box and/or Performance check box to choose these database items in addition to provisioning information.
Note You can back up five databases as part of one backup file package; therefore the ONS15600SDH allows you to select all of the files or a subset of the files to restore as part of the restore package.
Step5 In the Database Restore window, click Browse .
Step6 Navigate to the backup file stored on the workstation hard drive or on network storage.
The file has a .db extension.
Step7 Click the database file to highlight it.
Step8 Click Open . The Database Restore dialog box appears. Opening a restore file from another node or a network location rather than the local workstation hard drive affects traffic on the login node. Figure14-5 shows the traffic loss warning dialog box.
Figure 14-5 Restoring the Database: Traffic Loss Warning
Step9 Click Yes .
The Database Restore window monitors the file transfer. Wait for the file to complete the transfer to the TSC.
Step10 Click OK in the Lost connection to node, changing to Network View dialog box. Wait for the node to reconnect.
Stop. You have completed this procedure.
NTP-F90 Initiate a Manual or Force Switch in a 1+1 Protection Group
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Purpose
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This procedure initiates a Manual or Force external switch on a 1+1 port protection group. A Manual switch will switch traffic if the path has an error rate less than the signal degrade (SD). A Force switch will switch traffic even if the path has SD or signal fail (SF) conditions. A Force switch has a higher priority than a Manual switch.
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Tools/Equipment
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Installed and provisioned STM-N cards
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Prerequisite Procedures
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NTP-F27 Create a 1+1 (LMSP) Protection Group, page 4-19
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 Complete the "DLP-F36 Log into CTC" task on the ONS15600SDH node where you want to switch the protection group. If you are already logged in, continue with Step 2.
Step2 Complete the "DLP-F145 Initiate a Manual Switch on a Port in a 1+1 Protection Group" task as needed.
Step3 Complete the "DLP-F146 Initiate a Force Switch on a Port in a 1+1 Protection Group" task as needed.
Step4 Complete the "DLP-F147 Clear a Manual or Force Switch in a 1+1 Protection Group" task as needed.
Stop. You have completed this procedure.
DLP-F145 Initiate a Manual Switch on a Port in a 1+1 Protection Group
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Purpose
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This procedure applies the Manual external switching command to a 1+1 protection scheme.
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Tools/Equipment
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Installed STM-N cards
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Group area, select the protection group that contains the port you want to switch.
In the Selected Group area, each port is identified as Working or Protect. Each port also has a status:
•Active—The port is carrying traffic.
•Standby—The port is not carrying traffic.
•[MANUAL TO WORKING]—A Manual switch has moved traffic to the Working port.
•[MANUAL TO PROTECT]—A Manual switch has moved traffic to the Protect port.
•[FORCE TO WORKING]—A Force switch has moved traffic to the Working port.
•[FORCE TO PROTECT]—A Force switch has moved traffic to the Protect port.
The normal assignment status is for one port assignment to be Working/Active and for the other to be Protect/Standby.
Step3 In the Selected Group, click the port that you want to switch. For example, if you want to switch traffic from the working port to the protect port, click the working port.
Step4 Click Manual .
If the Manual switch is successful, CTC shows both ports as [MANUAL TO PROTECT] (or [MANUAL TO WORKING]). This indicates that the ONS 15600 SDH system has been able to carry out the switch request and has moved traffic from one port to the other.
If the Bidirectional switching check box on the Provisioning > Protection tab in node view is checked, both the near-end and far-end nodes switch to the designated protection ports. For example, if the near-end node has a loss of signal (LOS), it switches to the protection port and transmits a switch request to the far-end node to switch to the protection port also. This ensures that both nodes process traffic from the same span.
If the Bidirectional switching check box is not selected, the near-end and far-end nodes switch independently of each other. For example, if the near-end node has an LOS on its working port, it switches to the protection port. If the far-end node does not have a LOS, traffic remains on the working port.
If the Manual switch is not successful, CTC continues to show the ports as active and standby, and an alarm such as FAILTOSWS is raised. This failure occurs because the target port is not available and troubleshooting is required. For information about troubleshooting, refer to the Cisco ONS 15600 SDH Troubleshooting Guide.
Step5 Click the node view Conditions tab and click Retrieve to see new events. The switch procedure raises a MANUAL-REQ-SPAN condition that is visible in the window unless Not Alarmed conditions have been filtered out from the view.
Step6 Click the node view Alarms tab.
If any traffic loss alarms occur or if a switching failure alarm such as FAILTOSWS occurs, troubleshoot the alarms that have prevented the switch and attempt the switch procedure again.
Step7 Return to your originating procedure (NTP).
DLP-F146 Initiate a Force Switch on a Port in a 1+1 Protection Group
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Purpose
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This task applies the Force external switching command to a 1+1 protection scheme.
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Tools/Equipment
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Installed STM-N cards
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Group area, select the protection group that contains the port you want to switch.
In the Selected Group area, each port is identified as Working or Protect. Each port also has a status:
•Active—The port is carrying traffic.
•Standby—The port is not carrying traffic.
•[MANUAL TO WORKING]—A Manual switch has moved traffic to the working port.
•[MANUAL TO PROTECT]—A Manual switch has moved traffic to the protect port.
•[FORCE TO WORKING]—A Force switch has moved traffic to the working port.
•[FORCE TO PROTECT]—A Force switch has moved traffic to the protect port.
The normal status is for one port to be Working/Active and the other to be Protect/Standby.
Step3 In the Selected Group area, select the port that you want to switch. For example, if you want to switch traffic from the working port to the protect port, click the working port.
Step4 Click Force .
If the Force switch is successful, CTC shows both ports as [FORCE TO PROTECT] (or [FORCE TO WORKING]). This indication is shown whether or not the ONS 15600 SDH system has been able to move traffic from one port to the other.
If the Bidirectional switching check box in node view under Provisioning > Protection tabs, is checked, both the near-end and far-end nodes switch to the designated protection ports. For example, if the near-end node has a LOS, it switches to the protection port and transmits a switch request to the far-end node to switch to the protection port also. This ensures that both nodes process traffic from the same span.
If the Bidirectional switching check box is not selected, the near-end and far-end nodes switch independently of each other. For example, if the near-end node has an LOS on its working port, it switches to the protection port. If the far-end node does not have a LOS, traffic remains on the working port.
If the Force switch is unsuccessful, clear the switch immediately using the "DLP-F147 Clear a Manual or Force Switch in a 1+1 Protection Group" task , and then troubleshoot the problems preventing the switch by referring to the Cisco ONS 15600 SDH Troubleshooting Guide.
Step5 Click the node view Conditions tab and click Retrieve to see new events. The switch procedure raises a FORCED-REQ-SPAN condition that is visible in the window unless Not Alarmed conditions have been filtered out from the view.
Step6 Click the Alarms tab.
No new traffic loss alarms or failure-to-switch alarms should have been raised.
Step7 Return to your originating procedure (NTP).
DLP-F147 Clear a Manual or Force Switch in a 1+1 Protection Group
Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Groups area, choose the protection group that contains the card you want to clear.
Step3 In the Selected Group area, choose the card you want to clear.
Step4 In the Switch Command area, click Clear .
Step5 Click Yes in the confirmation dialog box.
The Manual or Force switch is cleared.
Step6 Return to your originating procedure (NTP).
NTP-F91 Inhibit Protection Switching in a 1+1 Protection Group
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Purpose
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This procedure describes how to inhibit 1+1 protection switching by applying a lockon or lockout. A lockon can be applied to the working port; it prevents traffic from switching to the protect port in the protection group. Lockouts can only be applied to protect ports; a lockout prevents traffic from switching to the protect port under any circumstance.
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Tools/Equipment
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None
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Prerequisite Procedures
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NTP-F27 Create a 1+1 (LMSP) Protection Group, page 4-19
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 Complete the "DLP-F36 Log into CTC" task at the node where you want to inhibit 1+1 group protection switching. If you are already logged in, continue with Step 2.
Step2 To prevent traffic from switching to the protect port in the protection group, complete the "DLP-F148 Apply a Lockon in a 1+1 Group" task.
Step3 To prevent traffic from switching to the protect port under any circumstances, complete the "DLP-F149 Apply a Lockout in a 1+1 Group" task to lock out the protect port.
Step4 Complete the "DLP-F150 Clear a Lockon or Lockout in a 1+1 Protection Group" task as needed.
Note Refer to the CiscoONS15600SDHReferenceManual for a description of protection switching and switch state priorities.
Stop. You have completed this procedure.
DLP-F148 Apply a Lockon in a 1+1 Group
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Purpose
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This task locks traffic onto a working port to prevent traffic from switching to the protect port in a protection group.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Note A lockon can be applied to a working port only.
Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Groups area, select the protection group where you want to apply a lockon.
Step3 If you determine that the protect port is in standby and you want to apply the lockon to the protect port, make the protect port active:
a. In the Selected Group field, click the protect port.
b. In the Switch Commands field, click Force .
Step4 In the Selected Group area, choose the active port where you want to lock on traffic.
Step5 In the Inhibit Switching field, click Lock On .
Step6 Click Yes in the confirmation dialog box.
The lockon has been applied and traffic cannot be switched from that port. See the "DLP-F150 Clear a Lockon or Lockout in a 1+1 Protection Group" task as needed.
Step7 Return to your originating procedure (NTP).
DLP-F149 Apply a Lockout in a 1+1 Group
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Purpose
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This task locks traffic out of a protect port in a 1+1 protection group, which prevents traffic from switching to that port.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Note A lockout can be applied to a protect port only.
Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Groups field, click the protection group that contains the card you want to lock out.
Step3 In the Selected Group area, select the card you want to lock out.
Step4 In the Inhibit Switching field, click Lock Out .
Step5 Click Yes on the confirmation dialog box.
The lockout has been applied and traffic is switched to the opposite card. To clear the lockout, see the "DLP-F150 Clear a Lockon or Lockout in a 1+1 Protection Group" task .
Step6 Return to your originating procedure (NTP).
DLP-F150 Clear a Lockon or Lockout in a 1+1 Protection Group
Step1 In node view, click the Maintenance > Protection tabs.
Step2 In the Protection Groups area, choose the protection group that contains the card you want to clear.
Step3 In the Selected Group area, choose the card you want to clear.
Step4 In the Inhibit Switching area, click Unlock .
Step5 Click Yes in the confirmation dialog box.
The lockon or lockout is cleared.
Step6 Return to your originating procedure (NTP).
NTP-F92 Initiate an External Switching Command on an SNCP Circuit
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Purpose
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This procedure initiates a Manual, Force, or Lockout switch on an SNCP circuit. A Manual switch will switch traffic if the path has an error rate less than the signal degrade. A Force switch will switch traffic even if the path has SD or SF conditions. A Force switch has a higher priority than a Manual switch. Lockouts prevent traffic from switching under any circumstance and have the highest priority.
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Tools/Equipment
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None
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Prerequisite Procedures
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F39 Provision SNCP Nodes
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Note This procedure switches traffic on a single SNCP circuit; to switch all circuits on a span, see the "DLP-F142 Switch All SNCP Circuits on a Span" task.
Step1 Complete the "DLP-F36 Log into CTC" task at the node where you want to switch traffic on an SNCP circuit. If you are already logged in, continue with Step 2.
Step2 Complete the "DLP-F151 Initiate a Manual Switch on an SNCP Circuit" task as needed.
Step3 Complete the "DLP-F152 Initiate a Force Switch to an SNCP Circuit" task as needed.
Step4 Complete the "DLP-F153 Initiate a Lockout on an SNCP Path" task to prevent traffic from switching to the protect path.
Step5 Complete the "DLP-F154 Clear a Switch or Lockout on an SNCP Circuit" task as needed.
Note Refer to the CiscoONS15600SDHReferenceManual for a description of protection switching and switch state priorities.
Stop. You have completed this procedure.
DLP-F151 Initiate a Manual Switch on an SNCP Circuit
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Purpose
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This task switches traffic to the protect SNCP path using a Manual switch. A Manual switch will switch traffic if the path has an error rate less than the signal degrade.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 In node view, click the Circuits tab.
Step2 Click the path you want to switch and then click Edit .
Step3 In the Edit Circuit window, click the SNCP Selectors tab.
Step4 In the Switch State column, click the row for the path you want to switch and select ManualtoProtect or Manual to Working as appropriate.
Step5 Click Apply .
Step6 To verify that the switch has occurred, view the SNCP Selectors tab Switch State column. The row for the circuit you switched will show a MANUAL status.
Traffic switches from the working SNCP path to the protect path. If the path is configured for revertive switching, the traffic reverts to the working path when the Manual switch is cleared. See the "DLP-F154 Clear a Switch or Lockout on an SNCP Circuit" task as needed.
Step7 Return to your originating procedure (NTP).
DLP-F152 Initiate a Force Switch to an SNCP Circuit
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Purpose
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This task switches traffic to the working SNCP circuit using a Force switch. A Force switch will switch traffic even if the path has High Order Path Excessive BER (HP-EXC) or High Order Path Signal Degrade (HP-DEG) conditions. A Force switch has a higher priority than a Manual switch.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 In node view, click the Circuits tab.
Step2 Click the path you want to switch and click Edit .
Step3 In the Edit Circuit window, click the SNCP Selectors tab.
Step4 In the Switch State column, click the row for the path you want to switch and select Force to Working or Force to Protect as appropriate .
Step5 Click Apply .
Step6 To verify that the switch has occurred, view the SNCP Selectors tab Switch State column. The circuit row shows a FORCE status.
Traffic switches from the protect path to the working path. Protection switching cannot occur until the Force switch is cleared. See the "DLP-F154 Clear a Switch or Lockout on an SNCP Circuit" task as needed.
Step7 Return to your originating procedure (NTP).
DLP-F153 Initiate a Lockout on an SNCP Path
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Purpose
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This task applies a lockout of protection to an SNCP circuit so that working traffic cannot switch to the protection path. Lockouts prevent traffic from switching under any circumstance and have a higher priority than Manual or Force switches.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Provisioning or higher
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Step1 In node view, click the Circuits tab.
Step2 Click the path you want to switch and click Edit .
Step3 In the Edit Circuit window, click the SNCP Selectors tab.
Step4 In the Switch State column, click the row for the path you want to switch and select LockoutofProtection .
Note Refer to the CiscoONS15600SDHReferenceManual for a description of protection switching and switch state priorities.
Step5 Click Apply .
Working traffic is prevented from switching to the protect path.To clear the SNCP path lockout, complete the "DLP-F154 Clear a Switch or Lockout on an SNCP Circuit" task .
Step6 Return to your originating procedure (NTP).
DLP-F154 Clear a Switch or Lockout on an SNCP Circuit
Step1 Click the Circuits tab.
Step2 Click the path you want to switch and click Edit .
Step3 In the Edit Circuit window, click the SNCP Selectors tab.
Step4 In the Switch State column, click the row for the path you want to switch and select Clear .
Step5 Click Apply .
Note This task does revert traffic unless ports are configured for revertive switching.
Step6 Return to your originating procedure (NTP).
NTP-F93 Offload the Security Audit Trail Log
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Purpose
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This procedure stores up to 650 audit trail log entries in a local or network drive file to maintain a record of actions performed for the node.If the audit trail log is not offloaded, the oldest entries are overwritten after the log reaches capacity.
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Tools/Equipment
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None
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Prerequisite Procedures
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None
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Superuser
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Step1 Complete the "DLP-F36 Log into CTC" task at the node where you want to offload the audit trail log. If you are already logged in, continue with Step2.
Step2 In the node view, click the Maintenance > Audit tabs.
Step3 Click Retrieve and click Archive .
Step4 In the Archive Audit Trail dialog box, navigate to the directory (local or network) where you want to save the file.
Step5 Enter a name in the File Name field.
You do not have to give the archive file a particular extension. It is readable in any application that supports text files, such as WordPad, Microsoft Word (imported), etc.
Step6 Click Save .
The 650 entries are saved in this file. The next entries continue with the next number in the sequence, rather than starting over.
Stop. You have completed this procedure.
NTP-F94 Clean Fiber Connectors and Adapters
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Purpose
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Use this procedure to clean the fiber connectors and adapters.
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Tools/Equipment
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Inspection microscope (suggested: Westover FBP-CIS-1)
Scrub tool
Grounding strap
Wipes
Rinse tool
HFE-based cleaning fluid and pump head assembly
Replacement scrub tool wipes
Replacement rinse tool absorbent pads
Desktop hand tool
Pen-type hand tool
3M high-performance fiber-optic wipes
Empty disposable container
Canned air
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Prerequisite Procedures
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None
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Required/As Needed
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Required
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Onsite/Remote
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Onsite
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Security Level
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None
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Warning Invisible laser radiation may be emitted from the end of the unterminated fiber cable or connector. Do not stare into the beam or view directly with optical instruments.
Caution Follow established site safety practices when working with any laser equipment.
Step1 Using an inspection microscope, inspect each fiber connector for dirt, cracks, or scratches.
Step2 Replace any damaged fiber connectors.
Note Replace all dust caps whenever the equipment is unused for 30 minutes or more.
Step3 Complete the "DLP-F155 Clean Fiber Connectors" task as necessary.
Step4 Complete the "DLP-F156 Clean the Fiber Adapters" task as necessary.
Caution Do not reuse the optical swabs. Keep unused swabs off of work surfaces.
Stop. You have completed this procedure.
DLP-F155 Clean Fiber Connectors
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Purpose
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This task cleans the fiber connectors.
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Tools/Equipment
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Inspection microscope (suggested: Westover FBP-CIS-1)
Desktop hand tool
Scrub tool
3M high-performance fiber-optic wipes
Compressed air/duster
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Prerequisite Procedures
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None
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Required/As Needed
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Required
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Onsite/Remote
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Onsite
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Security Level
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None
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Note Replace all dust caps whenever the equipment will be unused for 30 minutes or more.
Step1 Remove the dust cap from the fiber connector.
Step2 To use the desktop hand tool:
a. Advance the 3M high-performance fiber-optic wipe in the desktop hand tool to access the unused wipe area.
Note To replace the fiber-optic wipe in the desktop hand tool, remove the frame cover. Put a new wipe over the base of the desktop hand tool with the stitching of the wipe aligned lengthwise with the tool. Place the frame cover on the tool and press firmly to reattach.
b. Place the connector tip at the top of the slot at a slight angle. In a single stroke, move the connector down the wipe without lifting the connector from the wipe. Before lifting the connector from the wipe, straighten the connector.
c. Repeat the single stroke motion on each side of the alignment pins to clean the entire connector face.
d. Blow off any wipe lint left on the fiber connector using the compressed air.
Step3 To use the scrub tool:
a. Connect the grounding strap to the scrub tool and to suitable ground.
b. Install or replace the scrub wipe in the scrub tool with a new wipe. Avoid handling the wipe excessively.
c. Scrub between the alignment pins of the fiber connector, and then wipe around the outside of each alignment pin.
Step4 Inspect the connector for cleanliness. Repeat Steps 2 and 3 as necessary.
Step5 Replace the dust cap on the fiber connector until ready for use.
Step6 Return to your originating procedure (NTP).
DLP-F156 Clean the Fiber Adapters
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Purpose
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This task cleans the fiber adapters.
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Tools/Equipment
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Inspection microscope (suggested: Westover FBP-CIS-1)
Scrub tool
Grounding strap
Wipes
Rinse tool
HFE-based cleaning fluid and pump head assembly
Replacement scrub tool wipes
Replacement rinse tool absorbent pads
Empty disposable container
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Prerequisite Procedures
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None
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Required/As Needed
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Required
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Onsite/Remote
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Onsite
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Security Level
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None
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Step1 Remove the dust plugs from the fiber adapter.
Step2 To remove stubborn particles from the fiber adapter:
a. Connect the grounding strap to the scrub tool and to suitable ground.
b. Install or replace the scrub wipe in the scrub tool with a new wipe. Avoid handling the wipe excessively.
c. Insert the scrub tool tip into the fiber adapter.
d. Remove and insert the scrub tool tip several times to clean the fiber adapter.
Step3 To remove loose particles from the fiber adapter:
a. Remove the dust cap from the rinse tool.
Note If the absorbent pad on the rinse tool needs replacement, slide the old pad and mesh retainer off of the rinse tool tube. Slide the new absorbent pad and mesh retainer over the rinse tip onto the rinse tool tube. Roll the absorbent pad and mesh retainer between your hands until the opening on the absorbent pad is closed. Discard the old absorbent pad and mesh retainer.
b. Connect the grounding strap to the rinse tool and to suitable ground.
c. Connect the rinse tool to the HFE-based cleaning fluid bottle and pump head assembly.
d. Turn the aluminum nozzle on the pump one-half turn counterclockwise and squirt the cleaning fluid into an empty container to soak the rinse tool.
e. Remove the dust cover from the fiber adapter.
f. Insert the rinse tool tip into the fiber adapter with the bent part of the handle pointing downwards. Squirt twice.
g. Remove the rinse tool and replace the dust cover on the adapter. Replace the dust cap on the rinse tool.
h. Turn the aluminum nozzle on the pump clockwise until it is tight and disconnect the HFE bottle from the pump.
Step4 Inspect the fiber adapter to ensure that it is clean. If it is not clean, repeat Steps 2 and 3.
Step5 Replace the dust plug in the fiber adapter until ready for use.
Step6 Return to your originating procedure (NTP).
NTP-F95 Reset the TSC Card Using CTC
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Purpose
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This procedure resets the active TSC card and switches the node to the redundant TSC card.
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Tools/Equipment
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None
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Prerequisite Procedures
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F10 Install the Common Control Cards
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Superuser
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Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.
Note Before you reset the TSC, you should wait at least 60 seconds after the last provisioning change you made to avoid losing any changes to the database.
Step1 Complete the "DLP-F36 Log into CTC" task at the node where you want to perform the TSC card reset. If you are already logged in, continue with Step2.
Step2 In node view, right-click the active TSC card to reveal a drop-down menu.
Step3 Click Soft Reset Card to reset the card temporarily or Hard Reset Card to permenently reset the card.
Step4 Click Yes in the "Are You Sure?" dialog box.
Step5 Click OK in the "Lost connection to node, changing to Network View" dialog box.
Note For LED behavior during a TSC reboot, see Table2-1.
Step6 Confirm that the TSC card LED is amber (standby).
Stop. You have completed this procedure.
NTP-F96 Change the Node Timing Reference
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Purpose
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This procedure switches the node timing reference to enable maintenance on a timing reference or returning the node timing to normal operation.
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Tools/Equipment
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None
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Prerequisite Procedures
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NTP-F26 Set Up Timing, page 4-16
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Maintenance or higher
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Step1 Complete the "DLP-F36 Log into CTC" task at the node where you want to change the node timing reference. If you are already logged in, continue with Step 2.
Step2 Complete the "DLP-F157 Manually Switch the Node Timing Reference" taskas needed.
Step3 Complete the "DLP-F158 Clear a Manual Switch on a Node Timing Reference" task as needed.
Stop. You have completed this procedure.
DLP-F157 Manually Switch the Node Timing Reference
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Purpose
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This task commands the network element (NE) to switch to the timing reference you have selected if the synchronization status message (SSM) quality of the requested reference is not less than the current reference.
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Tools/Equipment
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None
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Prerequisite Procedures
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F36 Log into CTC
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Required/As Needed
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As needed
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Onsite/Remote
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Onsite or remote
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Security Level
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Maintenance or higher
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Step1 In node view, click the Maintenance > Timing tabs. The Timing source window appears.
Step2 In the Reference drop-down menu for the desired Clock, choose the desired reference.
Step3 In the Operation drop-down menu, choose Manual .
This operation commands the node to switch to the reference you have selected if the SSM quality of the reference is not lower than the current timing reference.
Step4 Click Apply .
Step5 Click Yes in the confirmation dialog box. If the selected timing reference is an acceptable valid reference, the node switches to the selected timing reference.
Step6 If the selected timing reference is invalid, a warning dialog appears. Click OK ; the timing reference does not revert.
Step7 Return to your originating procedure (NTP).
DLP-F158 Clear a Manual Switch on a Node Timing Reference
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Purpose
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This task clears a Manual switch on a node timing reference and reverts the timing reference to its provisioned reference.
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Tools/Equipment
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None
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Prerequisite Procedures
|
F36 Log into CTC
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Required/As Needed
|
As needed
|
|
Onsite/Remote
|
Onsite or remote
|
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Security Level
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Maintenance or higher
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Step1 In node view, click the Maintenance > Timing tabs. The Timing source window appears.
Step2 Find the Clock reference from the Reference drop-down menu that is currently set to Manual in the Operation menu.
Step3 In the Operation drop-down menu, choose Clear .
Step4 Click Apply .
Step5 Click Yes in the confirmation dialog box. If the normal timing reference is an acceptable valid reference, the node switches back to the normal timing reference as defined by the system configuration.
Step6 If the normal timing reference is invalid or has failed, a warning dialog appears. Click OK ; the timing reference does not revert.
Step7 Return to your originating procedure (NTP).
