Procedure 12-22.2: Upgrade OC-12 1+1 network (main-to-function/growth)
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 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 an in-service OC-12 1+1 network to an OC-48 1+1 network where the nodes are connected using the Main slots at one node and the Function/Growth slots at the other node.
1 |
Identify and log in to the far-end node connected to the 1+1 network using a port pair in the Function/Growth slots. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||
2 |
Important! An OC-48 port pair must be available in a different Function/Growth group. To verify that the upgrade OC-48 port parameters are provisioned correctly, select View → Equipment and expand the required circuit pack. Click on the OC-48 port and Select to obtain the port parameters. Click Close. If required, provision the upgrade OC-48 port pair according to the work instructions using the Configuration → Equipment command. Reference: Procedure 4-4: Provision OLIU circuit packs/ports for service | ||
3 |
To verify that the upgrade OC-48 port DCC parameters are provisioned correctly, select View → DCC Terminations to obtain the DCC channel status. Click Close. If required, provision the upgrade OC-48 port DCC parameters according to the office records using the Configuration → DCC Terminations command. Reference: Procedure 6-4: Provision DCC terminations | ||
4 |
Important! If the provisioned Timing Mode is Line and the Optical Synchronization Source is either of the OC-12 ports that are to be upgraded, the Optical Synchronization Source must be reprovisioned to an upgrade OC-48 port or to a different OC-n port not involved in the upgrade. Select View → Timing/Sync to access the System Timing parameters and observe the provisioned Timing Mode and Optical Synchronization Source. Click Close. If required, use local operating procedures to determine which OC-n line to provision as the new Optical Synchronization Source. | ||
5 |
Important! Perform this step only if the Optical Synchronization Source is to be reprovisioned to a different OC-n port not involved in the upgrade. If the Optical Synchronization Source is to be reprovisioned to an upgrade OC-48 port, the Optical Synchronization Source is reprovisioned later in this procedure only after transmission is supported on the upgrade OC-48 span. If required, select Configuration → Timing/Sync to reprovision the Optical Synchronization Source to a different OC-n port not involved in the upgrade. Reference: Procedure 6-5: Network Element synchronization provisioning | ||
6 |
Important! The starting node must be connected to the 1+1 network using the Main slots. This procedure assumes that the starting node is a Alcatel-Lucent 1665 DMXtend. Identify and log in to the near-end Alcatel-Lucent 1665 DMXtend node (starting node) connected to the 1+1 network using the Main slots. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||
7 |
If required at the near-end node, verify the active/standby status of the OC-12 circuit pack in Main slot M1 and perform manual switches to switch traffic away from an active circuit pack. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-22.4: Verify active/standby status of circuit pack to be replaced | ||
8 |
Important! The Ring Upgrade Mode is required for cross-connections and provisioning data to be mapped to the replacement circuit pack. 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. | ||
9 |
Important! At the near-end node (starting node), the OC-12 OLIU circuit pack in Main slot M1 must be first replaced with the temporary replacement LNW52 OC-48 OLIU circuit pack. The temporary replacement LNW52 OC-48 OLIU circuit pack maintains traffic while slot M2 and the far-end node in the 1+1 network are upgraded. As a final step, this temporary replacement LNW52 OC-48 OLIU circuit pack is upgraded. If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the OC-12 circuit pack is upgraded at each end of the optical span. At the near-end node, open the faceplate latch on the OC-12 OLIU circuit pack in Main slot M1. Disconnect the optical fibers from the OC-12 OLIU circuit pack in Main slot M1. Replace the OC-12 OLIU circuit pack in Main slot M1 with the temporary replacement OC-48 OLIU circuit pack. Result: The temporary replacement circuit pack in Main slot M1 is tested and autoprovisioned. The system reports an unexpected circuit pack type condition and an inc. OC12 LOS alarm for Main slot M1. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots | ||
10 |
Important! All cross-connections at the far-end node that are associated with the existing OC-12 1+1 network must be identified so that traffic can be moved to the OC-48 1+1 network. Select View → Cross-Connections. Expand the required OC-12 OLIU circuit pack in slot 1 of the Function/Growth group that is currently connected to the OC-12 1+1 network. Click on the required OC-12 port and Select to obtain the current list of cross-connections. Identify and record all add and drop cross-connections. Click Close to exit. | ||
11 |
For each add (Main to Function/Growth) cross-connection identified at the far-end node, select Configuration → Cross-Connections and use the Cross-Connection Wizard to bridge the add cross-connections to the required OC-48 port on the OC-48 OLIU circuit pack in slot 1 of the other Function/Growth group. Reference: Procedure 10-10: Bridge and roll cross-connections | ||
12 |
Removal of wrong fiber connections will result in a service interruption. Ensure that you remove only the fiber connections for the optical span being upgraded. At the far-end node, disconnect the transmit and receive optical fibers from the required OC-12 port on the OC-12 OLIU circuit pack in slot 1 of the Function/Growth group. Result: The system still reports an inc. OC12 LOS alarm for the OC-12 port. | ||
13 |
At both ends of the optical span to be upgraded, perform the following to connect the OC-48 port on the OC-48 OLIU circuit pack in slot 1 of the other Function/Growth group and the temporary replacement OC-48 circuit pack in Main slot M1 at the opposite end of the upgraded OC-48 optical span:
Reference: Procedure 14-4: Perform connection and verification of optical facility | ||
14 |
Important! Perform this step only if the Optical Synchronization Source is to be reprovisioned to the upgrade OC-48 port on the OC-48 OLIU circuit pack in slot 1 of the Function/Growth group. If required, 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 1 of the Function/Growth group. Reference: Procedure 6-5: Network Element synchronization provisioning | ||
15 |
For each drop (Function/Growth to Main) cross-connection identified at the far-end node, select Configuration → Cross-Connections and use the Cross-Connection Wizard to roll the drop cross-connections to the required OC-48 port on the OC-48 OLIU circuit pack in slot 1 of the other Function/Growth group. Result: Transmission is now supported on the upgraded optical span between the OC-48 OLIU circuit pack in slot 1 of the Function/Growth group and the temporary replacement OC-48 circuit pack in Main slot M1 at the opposite end of the upgraded OC-48 optical span. Reference: Procedure 10-10: Bridge and roll cross-connections | ||
16 |
If required at the near-end node, verify the active/standby status of the OC-12 circuit pack in Main slot M2 and perform manual switches to switch traffic away from an active circuit pack. If the working card (slot 1 card) is to be upgraded and is active, perform an optional manual transmission switch. If the protect card (slot 2 card) is to be upgraded and is active, perform an optional manual transmission switch. Reference: Procedure 12-22.4: Verify active/standby status of circuit pack to be replaced | ||
17 |
Removal of wrong fiber connections will result in a service interruption. Ensure that you remove only the fiber connections for the optical span being upgraded. Important! Do not reconnect the optical fibers until instructed to do so. The optical fibers are reconnected after the OC-12 circuit pack is upgraded at each end of the optical span. At the far-end node, disconnect the transmit and receive optical fibers from the required OC-12 port on the OC-12 OLIU circuit pack in slot 2 of the Function/Growth group. Result: The system reports inc. OC12 LOS alarms for the original OC-12 ports. Alarms may also be reported at other nodes. | ||
18 |
Important! The UPD/INIT button does not work during this upgrade. At the near-end node, select Configuration → Update System → Upgrade. Select main-1 (default) as the Directed Slot Choice and click OK. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The unexpected circuit pack type condition for Main slot M1 clears, and the system reports an unexpected circuit pack type condition for Main slot M2. | ||
19 |
Important! If the circuit pack is active for timing and/or transmission, opening the latch causes timing and/or transmission switches. Transmission hits (less than 60 ms) will occur for each separate protection switch. At the near-end node, open the faceplate latch on the OC-12 OLIU circuit pack in Main slot M2. Disconnect the optical fibers from the OC-12 OLIU circuit pack in Main slot M2. Replace the OC-12 OLIU circuit pack in Main slot M2 with the replacement OC-48 OLIU circuit pack. Result: The system reports an unexpected CP type alarm for Main slot M2. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots
| ||
20 |
At both ends of the optical span to be upgraded, perform the following to connect the replacement OC-48 circuit pack in the Main slot M2 and the OC-48 port on the OC-48 OLIU circuit pack in slot 2 of the other Function/Growth group at the opposite end of the upgraded OC-48 optical span:
Reference: Procedure 14-4: Perform connection and verification of optical facility | ||
21 |
If the OLIU circuit packs being upgraded carry Ethernet traffic with LCAS enabled, transmission hits (up to 6 seconds) may occur as Ethernet traffic is switched. The length of the service hits varies based on shelf equipage and TDM/Ethernet service provisioning. Important! The UPD/INIT button does not work during this upgrade. At the near-end node, select Configuration → Update System → Upgrade. Select main-2 as the Directed Slot Choice and click OK. Result: A dialog box appears asking you to confirm executing this command. Click Yes. The replacement OC-48 OLIU circuit pack in Main slot M2 is tested and autoprovisioned. The system performs an automatic path protection switch, and all traffic is now active on Main slot M2. Transmission hits (less than 60 ms) occur as traffic switches from the circuit pack in Main slot M1 to the circuit pack in Main slot M2. The unexpected CP type alarm for Main slot M2 clears, and the system reports an unexpected CP type alarm for Main slot M1. Alarms may also be reported at other nodes. Transmission is now supported on the upgraded optical span between Main slot M2 and the OC-48 port on the OC-48 OLIU circuit pack in slot 2 of the other Function/Growth group at the opposite end of the upgraded OC-48 optical span. | ||
22 |
At the near-end node, open the faceplate latch on the temporary replacement OC-48 OLIU circuit pack in Main slot M1. Disconnect the optical fibers from the temporary replacement OC-48 OLIU circuit pack in Main slot M1. Then replace the temporary replacement OC-48 OLIU circuit pack in Main slot M1 with the replacement OC-48 OLIU circuit pack. Result: The replacement OC-48 OLIU circuit pack in Main slot M1 is tested and autoprovisioned. The unexpected CP type alarm for Main slot M1 clears, and the system reports an inc. OC48 LOS alarm for Main slot M1. Reference: Procedure 4-2: Install OLIU circuit packs in Main slots | ||
23 |
Measure the optical receive power of the receive fiber using an optical power meter. Select the appropriate LBO to attenuate the receive signal to the middle of the allowable optical receive power range. (Refer to the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Applications and Planning Guide, 365-372-324 for the SONET optical specifications of the OC-48 OLIU circuit packs.) | ||
24 |
Clean all fiber connectors, and connect the transmit and receive optical fibers to the replacement OC-48 OLIU circuit pack in Main slot M1. Result: The inc. OC48 LOS alarms clear. Transmission is now supported on the upgraded optical span. Reference: Procedure 14-3: Clean optical fibers, dual LC adapters and LC lightguide buildouts (LBOs) | ||
25 |
Important! Perform this step only if the Optical Synchronization Source is to be reprovisioned to the upgrade OC-48 port on the OC-48 OLIU circuit pack in slot 2 of the Function/Growth group. If required, 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 STOP! To complete the upgrade, return to the procedure that directed you to perform this procedure. End of steps |
