Procedure 12-27: Upgrade protected OC-n span to DWDM OTS span
Overview
Use this procedure to upgrade an in-service OC-n span to a DWDM OTS span in a 1+1/UPSR/BLSR network.
Privilege level
You must log in as a Privileged user to complete this procedure.
Required equipment
The following equipment is required to perform this procedure:
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One OMD circuit pack with an available Optical Channel (OCH) port at each end of the OC-n span to be upgraded. An empty Function/Growth slot is required at each node. For equipage guidelines and restrictions, refer to Procedure 4-25: Install DWDM optical multiplexer/demultiplexer circuit packs.
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If the OC-n span to be upgraded is equipped with OC-192 OLIU circuit packs with pluggable transmission modules that do not match any available Optical Channel (OCH) ports on the OMD circuit pack, one DWDM pluggable transmission module that matches an available Optical Channel (OCH) port on the OMD circuit pack is required at each node.
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If the OC-n span to be upgraded is equipped with OC-3/OC-12/OC-48 OLIU circuit packs or multirate OLIU circuit packs equipped with OC-3, OC-12, or OC-48 pluggable transmission modules, an XM10G/8 Muxponder circuit pack with an available OC-n client port is required. The OTU2 port of XM10G/8 circuit pack must be equipped with a DWDM pluggable transmission module that matches an available Optical Channel (OCH) port on the OMD circuit pack. An empty Function/Growth slot is required at each node. For equipage guidelines and restrictions, refer to Procedure 4-28: Install 10G Muxponder circuit packs.
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If the OC-n span to be upgraded is equipped with DWDM-incompatible OC-192 OLIU circuit packs, a node upgrade to a PTM-based, DWDM-compatible OC-192 OLIU circuit pack is required.
Important!
Release 7.1.1 or later software is required to support this upgrade.
DWDM-compatible circuit packs
The following circuit packs are DWDM compatible:
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LNW705 XM10G/8 Muxponder with DWDM-compatible pluggable transmission modules (channels 9520 - 9590)
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LNW59 OC-192 OLIU with DWDM-compatible pluggable transmission modules (channels 9520 - 9590)
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LNW502 OC-192 OLIU with DWDM-compatible pluggable transmission modules (channels 9520 - 9590)
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LNW504 OC-48/OC-192 OLIU with DWDM-compatible pluggable transmission modules (channels 9520 - 9590)
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LNW554 tunable OC-192 OLIU (channels 9520, 9530, 9540, 9550)
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LNW603 OC-192 OLIU with DWDM-compatible pluggable transmission modules (channels 9520 - 9590)
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NOTICE Equipment damage hazard |
Rocking circuit packs back and forth when removing or installing them can damage circuit pack and/or shelf connectors.
Do not rock circuit packs back and forth when removing or installing them. Carefully slide circuit packs into or out of the shelf slot.
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NOTICE Service-disruption hazard |
Removing or installing circuit packs during a System Reset can cause system errors.
Do not remove or install a circuit pack during a System Reset. If a System Reset occurs, wait until the System Reset is complete, then remove or install the circuit pack.
Before you begin
Prior to performing this procedure:
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Refer to Laser safety and Electrostatic discharge information in Chapter 1, Safety.
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Verify that the work instructions specify the affected OC-n circuit pack/pluggable transmission module/port and protection group AIDs (if required).
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Verify that the work instructions specify the circuit pack/pluggable transmission module/port parameters and values to be provisioned.
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Review the applicable Alcatel-Lucent 1665 Data Multiplexer (DMX) Software Release Description for any detailed procedures or cautions that may apply to this span upgrade procedure.
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Determine the local operating procedures for removing optical fibers from an OC-n port. Local operating procedures may vary. One method is to disconnect the optical fibers. Another method is to verify the OC-n port active/standby status, perform manual switches if the OC-n port is active, and then disconnect the optical fibers.
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.
When optical fibers are connected in a BLSR during this procedure, Default K-bytes alarms are reported temporarily.
Use this procedure to upgrade an in-service OC-n span to a DWDM OTS span.
1 |
From office records and work instructions, determine the current network configuration. Note how the nodes are connected and make a drawing to reference during this upgrade procedure. | |||||||
2 |
Log in to a node that terminates the OC-n span to be upgraded. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | |||||||
3 |
Click the Alarm List button in the top right corner of the System View to view the NE Alarm List and verify that no alarms are present. Refer to the appropriate trouble clearing procedures to clear all existing alarms before continuing with this procedure. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | |||||||
4 |
To verify that no loopbacks, protection switch lockouts, or protection switches are present, select View → Rolling Events. Under the line reading RTRV-COND-ALL determine if any loopbacks, protection switch lockouts, or protection switches are displayed. Remove all existing loopbacks, protection switch lockouts, or protection switches before continuing with this procedure. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | |||||||
5 |
Select Fault → Analysis → Test Access to access the Test Access Wizard and verify that no test access sessions exist. If required, select Fault → Analysis → Test Access to access the Test Access Wizard and delete all existing test access sessions. Reference: | |||||||
6 |
Using the work instructions, identify the OLIU circuit pack/pluggable transmission module (PTM)/port that terminates the OC-n span to be upgraded. Select View → Equipment to access the required OLIU circuit pack/pluggable transmission module/port. Record the OLIU circuit pack type, pluggable transmission module type, port rate, and frequency. | |||||||
7 |
Important! If the OC-n span to be upgraded is terminated using DWDM-incompatible LNW56, LNW58, LNW523, or LNW527 OC-192 OLIU circuit packs, the node must be upgraded to LNW59 OC-192 OLIU circuit packs with DWDM-compatible pluggable transmission modules. If required, upgrade the DWDM-incompatible LNW56, LNW58, LNW523, or LNW527 OC-192 OLIU circuit packs to LNW59 OC-192 OLIU circuit packs with DWDM-compatible pluggable transmission modules. Reference: | |||||||
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At the opposite end of the OC-n span to be upgraded, log in to the node and repeat Step 3 through Step 7. Then continue with the next step. Reference: Procedure 14-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | |||||||
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10 |
At each node in the upgraded DWDM OTS span, click the Alarm List button in the top right corner of the System View to view the NE Alarm List and verify that no alarms or standing conditions are present. Refer to the appropriate trouble clearing procedures to clear all existing alarms and standing conditions. Reference: Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 | |||||||
11 |
Important! It is recommended that the network element database be backed up to a remote OS (for example, OMS) after an upgrade. This creates a current backup copy that includes the replacement circuit packs. The remote OS could use this backup copy to restore the network element database in the event of a catastrophic failure. Attempts to restore the network element database using a backup copy created prior to the upgrade may result in circuit pack failures. At each node in the upgraded DWDM OTS span, back up the network element database using the Configuration → Software → Remote Backup command. Reference: End of steps |