Replace high-speed main OLIU circuit pack

Procedure 6-3: Replace high-speed main OLIU circuit pack

Overview

Use this procedure to replace the following high-speed OLIU circuit packs in the Main slots (M1 and M2):

LNW38 OC12/1.3/IR1
LNW40 OC3/1.3/IR1
LNW41 OC48 OLIU with one OM2.5G 1.3LR1 or OM2.5G 1.5LR2 pluggable transmission module
LNW51 OC12/1.3/LR1
LNW84 OC3/OC12/OC48
LNW140 OC3/1.3/IR1 + DS1
LNW141 OC192 OLIU with one pluggable transmission module or without a pluggable transmission module (headless, optics-free, switch applications)
LNW302 OC-3 OLIU circuit pack supports a single OC-3 pluggable transmission module
LNW382 OC-12 OLIU circuit pack supports a single OC-12 pluggable transmission module
LNW380 OC12/1.5/LR2
LNW601 OC3/1.3/LR1

Important!

The OLIU circuit packs in the Main slots must both have the same optical line rate and VT cross-connect size. If the circuit packs in the Main slots have different optical line rates or VT cross-connect sizes, the system reports an unexpected CP type alarm and service may be impacted.

Important!

The LNW84 OC3/OC12/OC48, LNW140 OC3/1.3/IR1 + DS1, and LNW141 OC192 circuit packs are only compatible with the Alcatel-Lucent 1665 DMXtend Shelf with removable center dividers (DMXTEND-RCD-CE Shelf Type).

To determine the shelf type, select View → Equipment, highlight Shelf, and click Select to obtain the shelf details.

Required equipment

In addition to the equipment listed in Required equipment, optical loopback cables, LBOs, and optical fiber cleaning tools may also be required if loopbacks are performed.

Refer to the list of Class 1 SFP/XFP transceivers that are approved by Alcatel-Lucent in Procedure 6-5: Replace pluggable transmission module.

Refer to the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Installation Manual, 365-372-327, as required, when removing and/or installing pluggable transmission modules.

Important!

If responses are not correct when replacing the OLIU circuit pack, check the connections. If the connections are correct, replace the circuit pack with the wrong response. (The red FAULT LED normally flashes when an OLIU circuit pack is monitored and there is no signal present.)

If both the original OLIU circuit pack and the replacement OLIU circuit pack fail when no other transmission circuit packs are installed in the shelf, replace the SYSCTL circuit pack. Refer to Procedure 6-10: Upgrade or replace SYSCTL (LNW2) circuit pack.

NOTICE

Equipment damage

The LNW38, LNW380, LNW40, LNW51, LNW52, LNW140, and LNW601 OLIU circuit packs do not meet GR-78 R9-3 requirements on ESD susceptibility.

Always use proper ESD procedures when handling these OLIU circuit packs to avoid equipment damage.

Before you begin

Prior to performing this procedure:

Refer to Laser safety and Electrostatic discharge in Chapter 1, Safety.
Obtain the work instructions for this procedure.
Ensure that correct circuit pack is available for replacement.
If required, ensure that the correct pluggable transmission module is available for replacement.

Steps

Complete the following steps to replace an OLIU circuit pack in M1 or M2.

From the System View menu, select View → Timing/Sync and select the System Timing tab. The Active Circuit Pack item reads either main-1 or main-2.

Is the circuit pack that you wish to replace the active circuit pack?

If...	Then...
Yes	Continue with Step 3.
No	Proceed to Step 7.

Is the Alcatel-Lucent 1665 DMXtend shelf line timed from the circuit pack that you are replacing?

If...	Then...
Yes	Continue with Step 4.
No	Proceed to Step 7.

From the System View menu, select View → Timing/Sync and click the System Timing tab.

Is system autoreconfiguration enabled?

If...	Then...
Yes	Proceed to Step 7.
No	Continue with Step 6.

From the System View menu, select Configuration → Timing/Sync and click the System Timing tab. Select Enable in the Synchronization Autoreconfiguration field. Click OK.

Important!

Enable synchronization autoreconfiguration before removing the active circuit pack to ensure synchronization reference protection switching. If synchronization autoreconfiguration is disabled, and the active circuit pack is removed, the system enters holdover.

Important!

The LNW84 OC3/OC12/OC48, LNW140 OC-3/DS1 and LNW141 OC-192 circuit packs are equipped with two locking latches. The other main OLIU circuit packs are equipped with one locking latch and a thumbscrew.

Prepare to remove the circuit pack:

Loosen and disengage the thumbscrew that secures the left end of the circuit pack, if required.
Grasp the inner edge of the locking lever(s) that secures the circuit pack.
Apply a constant pressure to gently pull the locking lever(s) outward unlocking the latch. Do not remove the circuit pack.

Result:

If the circuit pack is the active circuit pack for transmission and timing, the system performs an automatic protection switch and subsequent transmission hits (less than 60 ms) will occur.

Remove the optical cables from the circuit pack.

Important!

The LNW41 OC-48, LNW141 OC-192, LNW302 OC-3, and LNW382 OC-12 OLIU circuit packs may be equipped with a pluggable transmission module. However, a pluggable transmission module is not required when the LNW141 OC-192 OLIU is used in headless, optics-free, switch applications.

The LNW84 OLIU circuit pack may be equipped with a mix of up to eight OC-3/12/48 pluggable transmission modules. However, pluggable transmission modules are not required when the LNW84 OLIU circuit pack is used in headless, optics-free, switch applications.

If required, remove the pluggable transmission module from the circuit pack.

Reference:

Procedure 6-5: Replace pluggable transmission module

Pull the lever(s) and thumbscrew (if equipped) forward to disengage the circuit pack from the backplane connector and draw the circuit pack out of the Main Slot.

Important!

Pluggable transmission modules are shipped with a dust cover installed into the optical ports to maintain cleanliness during storage and/or transportation. It is recommended that the dust cover be kept in place to maintain cleanliness until the optical fiber is connected. With proper care and handling, cleaning the pluggable transmission modules should not be necessary.

If required, clean the pluggable transmission module.

Reference:

Procedure 6-12: Clean optical pluggable transmission module

Holding the replacement OLIU circuit pack vertically, rotate the replacement OLIU circuit pack 90 degrees to the right (clockwise). The faceplate label with LNW38/LNW40/LNW41/LNW51 should be on your right, next to the fan unit.

Open the faceplate lever(s) and seat the replacement OLIU circuit pack in the vacant Main slot by applying steady pressure to the faceplate and latch assembly.

Result:

For non-VLF OLIU circuit packs, the FAULT LED lights for approximately 20 seconds then goes off, indicating successful installation.

For VLF OLIU circuit packs, the FAULT LED lights for approximately 10 minutes then goes off, indicating successful installation.

MJ or MN and NE alarm LEDs on the SYSCTL circuit pack light when an OLIU circuit pack is installed. (Firmware updates may take place that add additional wait time.)

Select View → Refresh System View and the circuit pack appears in the WaveStar^® CIT System View indicating successful installation.

Secure the replacement OLIU circuit pack in the shelf using the latch lever(s) and thumbscrew (if equipped).

Important!

If required, install the pluggable transmission modules.

Reference:

Procedure 6-5: Replace pluggable transmission module

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 replacement circuit pack.)

Ensure all optical fiber connectors and couplings are properly cleaned on the replacement circuit pack.

Important!

Signal performance may be degraded if the connections and couplings are not cleaned properly.

Reference:

Procedure 6-11: Clean optical fibers, dual LC adapters and LC lightguide buildouts (LBOs)

Reconnect the optical cables.

Result:

FAULT LED goes off.

From the System View menu, click the Alarm List button to obtain an NE Alarm List. Verify that no alarms are present for the installed circuit pack.

If required, refer to the appropriate procedure to clear any alarms.

From the System View menu, use View → Equipment to access the circuit pack/port parameters for the circuit pack just installed and verify that the parameters are intact.

If required, refer to the appropriate procedure in the Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) User Operations Guide, 365-372-325 to change any circuit pack/port parameters.

End of steps