Procedure 12-4.5: Upgrade OC-12 UPSR connections at node with multirate circuit packs
Important!
This is not a stand-alone procedure. Perform this procedure only as directed by another procedure.
Steps
Important!
When optical fibers are disconnected during this procedure, inc. LOS, section DCC channel failed, and neighbor SYSCTL CP unavailable alarms are reported. The holdover mode active condition may also be reported depending on the provisioned system timing mode.
Complete the following steps to upgrade the in-service UPSR connections at a Alcatel-Lucent 1665 DMXtend node connected to the UPSR using multirate circuit packs in the Main/Function/Growth slots.
1 |
Important! The Ring Upgrade Mode is required to allow ports in the protected port pair to be independently reprovisioned and operate at different rates. At the WaveStar® CIT System View, select Configuration → Ring Upgrade Mode. Result: A dialog box appears asking you to confirm changing the NE Mode to Ring Upgrade Mode. Click Yes. The ABN LED is lighted on the SYSCTL circuit pack faceplate and the WaveStar® CIT Alarm List shows the Ring Upgrade Mode as Not Alarmed. For more information about the Ring Upgrade Mode, refer to Ring Upgrade Mode. | ||||||||
2 |
If required, verify the active/standby status of the OC-12 port on the multirate circuit pack in Main/Function/Growth slot 1 and perform manual switches to switch traffic away from an active circuit pack/port. Reference: Procedure 12-4.3: Verify active/standby status of circuit pack/port to be upgraded | ||||||||
3 |
Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 1. Click on the required OC-12 port and Select to obtain the port parameters. Provision the port Signal Type parameter to OC-48 and click Apply. Result:
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4 |
Important! If the port is active for timing and/or transmission, disconnecting the optical fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. If required, disconnect the optical fibers from the single-rate OC-12 pluggable transmission module in Main/Function/Growth slot 1. Then replace the single-rate OC-12 pluggable transmission module in Main/Function/Growth slot 1 with the replacement OC-48 pluggable transmission module. Result: The replacement OC-48 pluggable transmission module in Main/Function/Growth slot 1 is tested and autoprovisioned. The unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 1 clears, and the system reports an inc. OC48 LOS alarm for Main/Function/Growth slot 1. Alarms may also be reported at other nodes in the ring. Reference: Procedure 4-16: Install pluggable transmission modules | ||||||||
5 |
If required at both ends of the optical span to be upgraded, perform the following to connect the replacement OC-48 pluggable transmission module in Main/Function/Growth slot 1 and the required circuit pack/port at the opposite end of the upgraded OC-48 optical span:
Result: The inc. OC48 LOS alarms clear. Transmission is now supported on the upgraded OC-48 optical span. Reference: Procedure 14-4: Perform connection and verification of optical facility | ||||||||
6 |
Important! Perform this step only if the opposite end of the upgraded optical span is an OC-48 port in a Function/Growth group and the Optical Synchronization Source is to be reprovisioned to the upgrade OC-48 port. If required at the opposite end of the upgraded optical span, select Configuration → Timing/Sync to reprovision the Optical Synchronization Source to the upgrade OC-48 port on the OC-48 OLIU circuit pack in slot 2 of the Function/Growth group. Reference: Procedure 6-5: Network Element synchronization provisioning | ||||||||
7 |
If required, verify the active/standby status of the OC-12 port on the multirate circuit pack in Main/Function/Growth slot 2 and perform manual switches to switch traffic away from an active circuit pack/port. Reference: Procedure 12-4.3: Verify active/standby status of circuit pack/port to be upgraded | ||||||||
8 |
Select Configuration → Equipment and expand the circuit pack in Main/Function/Growth slot 2. Click on the required OC-12 port and Select to obtain the port parameters. Provision the port Signal Type parameter to OC-48 and click Apply. Result:
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9 |
Important! Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the circuit pack/port is upgraded at each end of the optical span. If the port is active for timing and/or transmission, disconnecting the optical fibers causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. If required, disconnect the optical fibers from the single-rate OC-12 pluggable transmission module in Main/Function/Growth slot 2. Then replace the single-rate OC-12 pluggable transmission module in Main/Function/Growth slot 2 with the replacement OC-48 pluggable transmission module. Result: The replacement OC-48 pluggable transmission module in Main/Function/Growth slot 2 is tested and autoprovisioned. The unexpected or failed Pluggable Transmission Module alarm for Main/Function/Growth slot 2 clears, and the system reports an inc. OC48 LOS alarm for Main/Function/Growth slot 2. Alarms may also be reported at other nodes in the ring. Reference: Procedure 4-16: Install pluggable transmission modules The following figure shows the state of the current node and the adjacent optical spans. Important! If the upgraded OC-48 port in Main/Function/Growth slot 2 at the current node is equipped with a single-rate pluggable transmission module, inc. LOS alarms are reported. If the upgraded OC-48 port in Main/Function/Growth slot 2 at the current node is equipped with a multirate pluggable transmission module, inc. LOF alarms are reported. 
STOP! To complete the upgrade, return to the procedure that directed you to perform this procedure. End of steps |