Cisco ONS 15454 SDH Troubleshooting Guide, Release 4.0
Chapter 3, Replace Hardware
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Replace Hardware

Table Of Contents

Replace Hardware

3.1 Replace an In-Service Cross-Connect Card

3.2 Replace the Air Filter

3.2.1 Inspect, Clean, and Replace the Reusable Air Filter

3.2.2 Inspect and Replace the Disposable Air Filter

3.3 Determine Fan-Tray Replacement Compatibility

3.4 Replace the Fan-Tray Assembly

3.5 Replace the Small-Formfactor Pluggable Connector


Replace Hardware


This chapter provides procedures for replacing Cisco ONS 15454 SDH hardware.

1. Replace an In-Service Cross-Connect Card—Complete this procedure to replace and in-service cross-connect card.

2. Replace the Air Filter—Complete this procedure to replace a reusable or disposable air filter.

3. Determine Fan-Tray Replacement Compatibility—Complete this procedure to verify replacement hardware compatibility.

4. Replace the Fan-Tray Assembly—Complete this procedure to replace the fan-tray assembly.

5. Replace the Small-Formfactor Pluggable Connector—Complete this procedure as needed to replace the small-form pluggable (SFP) connector used with ML-Series Ethernet cards.

3.1 Replace an In-Service Cross-Connect Card


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.



Caution Removing any active card from the ONS 15454 SDH can result in traffic interruption. Use caution when replacing cards and verify that only inactive or standby cards are being replaced. If the active card needs to be replaced, follow the steps below to switch the XC10G, XCVXL 10G, or XCVXL 2.5G card to standby prior to removing the card from the node.


Note An improper removal (IMPROPRMVL) alarm is raised when a card reseat is performed, unless the card is first deleted in CTC. The alarm will clear after the card replacement is complete.



Note In an MS-SPRing, SNCP, or 1+1 traffic, pulling the active XC10G, XCVXL 10G, or XCVXL 2.5G card without a lockout will cause SNCP circuits to switch.



Step 1 Ensure that the working span is active on both local and remote nodes:

a. In node (default login) view, click the Maintenance > MS-SPRing tabs.

b. Locate the applicable span.

In the West Line and East Line columns, the working/active span is identified by (Work/Act).

Step 2 Ensure the working span is carrying error-free traffic (no SD or SF alarms present). From the View pull-down menu, choose Go to Network View, click the Alarms tab to display alarms.

Step 3 Lock out the protection span according to the specific protection scheme:

To lock out the protection span in an MS-SPRing protection scheme, proceed to Step 4.

To switch traffic in an SNCP protection scheme, proceed to Step 5.

To lock out the protection span in a 1+1 protection scheme, proceed to Step 6.

Step 4 Lock out the protection span in an MS-SPRing protection scheme:

a. In network view, click the Provisioning > MS-SPRing tabs.

b. Choose the MS-SPRing and click Edit.


Tip To move an icon to a new location, for example, to see MS-SPRing channel (port) information more clearly, click an icon on the Edit MS-SPRing network graphic and while pressing Ctrl, drag the icon to a new location.


c. To lock out a west span:

Right-click any MS-SPRing node west channel (port) and choose Set West Protection Operation.


Note For two-fiber MS-SPRings, the squares on the node icons represent the MS-SPRing working and protect channels. You can right-click either channel. For four-fiber MS-SPRings, the squares represent ports. Right-click either working port.


In the Set West Protection Operation dialog box, choose LOCKOUT SPAN from the drop-down menu. Click OK.

In the Confirm MS-SPRing Operation dialog box, click Yes. An "L" indicating the lockout appears on the selected channel (port) where you invoked the protection switch.

Performing a lockout switch generates LKOUTPR-S and FE-LOCKOUTOFPR-SPAN conditions.

d. To lock out an east span:

Right-click the node's east channel (port) and choose Set East Protection Operation.

In the Set East Protection Operation dialog box, choose LOCKOUT SPAN from the drop-down menu. Click OK.

In the Confirm MS-SPRing Operation dialog box, click Yes. An "L" indicating the lockout appears on the selected channel (port) where you invoked the protection switch.

Performing a lockout switch generates LKOUTPR-S and FE-LOCKOUTOFPR-SPAN conditions.

From the File menu, choose Close.

Step 5 Switch traffic in an SNCP protection scheme:

a. Click the Circuits tab.

b. Locate the span row.

Under the Switch State column, click the Switch all SNCP- circuits away menu.

Choose Clear and click Apply.

Click Yes at the Confirm SNCP Switch Are You Sure? dialog box.

Click OK at the confirmation dialog box.


Caution The FORCE command overrides normal protective switching mechanisms. Applying this command incorrectly can cause traffic outages.

Step 6 Lock out the protection span in a 1+1 protection scheme:

a. In the node view, click the Maintenance > Protection tabs.

b. Choose the affected 1+1 protection group from the Protection Groups window. In the Selected Group window, the working and protect spans appear.

c. Under Selected Group, click the affected STM-N port.

d. Switch Commands, choose Manual or Force:

Manual—Switches traffic if the new span is error free.

Force—Forces the traffic to switch, even if the path has signal degrade (SD) or signal failure (SF) conditions. Force switch states have a higher priority than manual switches.

e. Click Yes on the confirmation dialog box.

MANUAL-SWITCH-TO-WORKING or MANUAL-SWITCH-TO-PROTECT appears next to a manually switched span.

FORCE-SWITCH-TO-WORKING or FORCE-SWITCH-TO-PROTECT appears next to a forced span.

f. If the protect port was selected in Step c, verify that the working slot is carrying traffic (Working/Active).


Note If the slot is not active, look for conditions or alarms that may be preventing the card from carrying working traffic. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide.


g. When the working slot is carrying nonrevertive traffic, clear the manual switch:

In Switch Commands, choose Clear.

Click Yes on the confirmation dialog box.

h. With nonrevertive traffic, verify that the working slot does not switch back to Standby, which might indicate a problem on the working span.


Note An XC10G, XCVXL 10G, or XCVXL 2.5G card reset can cause a linear 1+1 STM-N protection switch or a MS-SPRing protection switch.


Step 7 When the protection span has been locked out, determine the active XC10G, XCVXL 10G, or XCVXL 2.5G card. The ACT/STBY LED of the active card is green. The ACT/STBY LED of the standby card is amber.


Note You can also place the cursor over the card graphic to display a pop-up identifying the card as active or standby.


Step 8 Switch the active XC10G, XCVXL 10G, or XCVXL 2.5G card to standby:

a. In the node view, click the Maintenance > Cross-Connect tabs.

b. Under Cross Connect Cards, choose Switch.

c. Click Yes on the Confirm Switch dialog box.


Note After the active XC10G, XCVXL 10G, or XCVXL 2.5G goes into standby, the original standby slot becomes active. This causes the ACT/STBY LED to become green on the former standby card.


Step 9 Physically remove the new standby XC10G, XCVXL 10G, or XCVXL 2.5G card from the ONS 15454 SDH.

Step 10 Insert the replacement XC10G, XCVXL 10G, or XCVXL 2.5G card into the empty slot.

The replacement card boots up and becomes ready for service after approximately one minute.

Step 11 Release the protection lockout(s) applied in Step 3:

To clear an MS-SPRing lockout, proceed to Step 12.

To clear an SNCP force switch, proceed to Step 13

To clear a 1+1 lockout, proceed to Step 14.

Step 12 Clear an MS-SPRing Span Lockout

a. From the View menu choose Go to Network View.

b. Click the Provisioning > MS-SPRing tabs.

c. Choose the MS-SPRing and click Edit.


Tip To move an icon to a new location, for example, to see MS-SPRing channel (port) information more clearly, press Ctrl and drag and drop the icon to a new location on the Edit MS-SPRing network graphic.


d. Right-click the MS-SPRing node channel (port) where the lockout will be cleared and choose Set West Protection Operation or Set East Protection Operation.

e. In the dialog box, choose CLEAR from the drop-down menu. Click OK.

f. the Confirm MS-SPRing Operation dialog box, click Yes. The "L" indicating the lockout is removed from the network graphic.

g. From the File menu, choose Close.

Step 13 Clear an SNCP force switch

a. Log into the node where you will clear the lockout.

b. Click the Maintenance > Protection tabs.

c. Under Protection Groups, click the protection group that contains the card you want to clear.

d. Under Selected Group, click the card you want to clear.

e. Click Clear.

f. Click Yes on the confirmation dialog box.

Step 14 Clear a 1+1 Traffic Switch

a. In the node view, click the Maintenance > Protection tabs.

b. Under Protection Groups, click the protection group that contains the card you want to clear.

c. Under Selected Group, click the card you want to clear.

d. From Inhibit Switching, click Unlock.

e. Click Yes on the confirmation dialog box.

The lockout is cleared.


3.2 Replace the Air Filter


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 Although the filter will work if it is installed with either side facing up, Cisco recommends that you install it with the metal bracing facing up to preserve the surface of the filter.


The air filter can either be installed right below the fan tray inside the shelf, or it can be slid into the top of the air ramp which is installed right underneath the shelf.


3.2.1 Inspect, Clean, and Replace the Reusable Air Filter


Step 1 Verify that you are replacing a reusable air filter. The reusable filter is made of a gray, open-cell, polyurethane foam that is specially coated to provide fire and fungi resistance.

Step 2 If the air filter is installed in the filter brackets at the top of the air ramp, slide the filter out of the brackets while being careful not to dislodge any dust that may have collected on the filter and proceed to Step 3. If the filter is installed beneath the fan tray and not in the external filter brackets:

a. Open the front door of the shelf assembly.

Open the front door lock.

The ONS 15454 SDH comes with a pinned hex key for locking and unlocking the front door. Turn the key counterclockwise to unlock the door and clockwise to lock it.

Press the door button to release the latch.

Swing the door open.

b. Remove the front door (optional). If you do not want to remove the door, proceed to Step 3:

Detach the ground strap from either the door or the chassis by removing one of the kep-nuts.

Place the Kepnut back on the stud after the ground strap is removed to avoid misplacement.

Secure the dangling end of the ground strap to the door or chassis with tape.

Step 3 Push the handles on the fan-tray assembly to release it.

Step 4 Slide the fan-tray assembly one inch (25.4 mm) out of the shelf assembly and wait until the fans stop.

Step 5 When the fans have stopped, pull the fan-tray assembly completely out of the shelf assembly.

Step 6 Gently remove the air filter from the shelf assembly. Figure 3-1 illustrates a reusable fan-tray air filter below the fan tray space inside the shelf. Be careful not to dislodge any dust that may have collected on the filter.

Figure 3-1 A Reusable Fan-Tray Air Filter Below the Fan Tray Space Inside the Shelf (Front Door Removed)

Step 7 Visually inspect the air filter material for dirt and dust.

Step 8 If the reusable air filter has a concentration of dirt and dust, either vacuum or wash the air filter. Prior to washing the air filter, replace the dirty air filter with a clean air filter and also reinsert the fan-tray assembly. Wash the dirty air filter under a faucet with a light detergent.

Spare ONS 15454 SDH filters should be kept in stock for this purpose.


Note Cleaning should take place outside the operating environment to avoid releasing dirt and dust near the equipment.


Step 9 If you washed the filter, allow it to completely air dry for at least eight hours.


Caution Do not put a damp filter back in the ONS 15454 SDH.

a. If the air filter is installed in the filter brackets at the top of the air ramp, slide the air filter all the way to the back of the brackets to complete the procedure.

b. If the filter is installed beneath the fan-tray assembly, remove the fan-tray assembly and slide the air filter into the recessed compartment at the bottom of the shelf assembly. Put the front edge of the air filter flush against the front edge of the recessed compartment. Push the fan tray back into the shelf assembly.


Caution If the fan tray does not slide all the way to the back of the shelf assembly, pull the fan tray out and readjust the position of the reusable filter until the fan tray fits correctly.

Note On a powered-up ONS 15454 SDH, the fans start immediately after the fan-tray assembly is correctly inserted.


Step 10 To verify that the tray is plugged into the backplane, ensure that the LCD on the front of the fan-tray assembly is activated and displays node information.

Step 11 Shift the retractable handles back into place.

Step 12 If you replace the door, also reattach the ground strap.


3.2.2 Inspect and Replace the Disposable Air Filter


Note The disposable air filter is installed beneath the fan-tray assembly only, so you must remove the fan-tray assembly to inspect and replace the disposable air filter.



Step 1 Verify that you are replacing a disposable air filter. The disposable filter is made of spun white polyester that is flame retardant.

Step 2 Open the front door of the shelf assembly. If the door is already open, proceed to Step 3.

a. Open the front door lock.

The ONS 15454 SDH comes with a pinned hex key for locking and unlocking the front door. Turn the key counterclockwise to unlock the door and clockwise to lock it.

b. Press the door button to release the latch.

c. Swing the door open.

Step 3 Remove the front door (optional). If you do not want to remove the door, proceed to Step 4.

a. Detach the ground strap from either the door or the chassis by removing one of the kep-nuts.

b. Place the Kepnut back on the stud after the ground strap is removed to avoid misplacement.

c. Secure the dangling end of the ground strap to the door or chassis with tape.

Step 4 Push the handles on the fan-tray assembly to release it.

Step 5 Pull the handles and slide the fan-tray assembly one inch out of the shelf assembly and wait until the fans stop.

Step 6 When the fans have stopped, pull the fan-tray assembly completely out of the shelf assembly.

Step 7 Gently remove the air filter from the shelf assembly. Be careful not to dislodge any dust that may have collected on the filter.

Step 8 Visually inspect the white filter material for dirt and dust.

Step 9 If the air filter shows a heavy concentration of dirt and dust, replace it with a new filter by sliding the filter into the bottom of the shelf assembly. Make sure that the front of the filter is flush with the front of the shelf assembly and that the air flow indicators on the filter point upwards.

Step 10 Slide the fan-tray assembly into the shelf assembly until the electrical plug at the rear of the tray plugs into the corresponding receptacle on the backplane.

Step 11 To verify that the tray is plugged into the backplane, ensure that the LCD on the front of the fan-tray assembly is activated and displays node information.

Step 12 Shift the retractable handles back into place.

Step 13 If you replace the door, also reattach the group strap.


3.3 Determine Fan-Tray Replacement Compatibility


Step 1 Review Table 3-1 to ensure you have compatible components when replacing the fan-tray assembly and note the alarms that will occur when an incompatible combination of hardware is installed.


Note If you need to determine the hardware that has been installed on a node, click the inventory tab in node view.


Table 3-1 Incompatibility Alarms 

Shelf Assembly 1
Fan Tray2
10G Cards 3
Ethernet Cards 4
Alarms

15454E-SA-ETSI

2A

No

None

15454E-SA-ETSI

2A

Yes

MEA on 10G

15454E-SA-ETSI

2A

No

None

15454E-SA-ETSI

2A

Yes

MEA on 10G

15454E-SA-ETSI

5A

No

MEA on fan tray

15454E-SA-ETSI

5A

Yes

MEA on fan tray and 10G cards

15454E-SA-ETSI

5A

No

None

15454E-SA-ETSI

5A

Yes

MEA on 10G

ETSI

2A

No

None

ETSI

2A

Yes

2.5G compatible

MEA on fan tray or Ethernet

ETSI

2A

Yes

10G compatible

MEA on fan tray

ETSI

2A

No

Either

None

ETSI

2A

Yes

2.5G compatible

MEA on fan tray, Ethernet

ETSI

2A

Yes

10G compatible

MEA on fan tray

ETSI

5A

Yes

2.5G compatible

MEA on Ethernet

ETSI

5A

No

Either

None

ETSI

5A

Yes

Either

None

1 15454-SA-ETSI (P/N: 800-08708-XX) = ONS 15454 SDH Release 3.3 and later shelf assembly.

2 5A Fan Tray = 15454E-FTA-60V
2A Fan Tray = 15454E-FTA-48V

3 10G cards = XC-10G, XCVXL 10G, STM-64, STM-16AS

4 2.5G compatible Ethernet cards = E1000-T, E1000-2, E1000T-G, E10002-G, G1000-4, G1K-4
10G compatible Ethernet cards = E1000T-G, E10002-G, G1000-4, G1K-4, ML100T-12, ML1000-2


Step 2 See the "Replace the Air Filter" section to replace the air filter or the "Replace the Fan-Tray Assembly" section to replace the fan-tray assembly.


3.4 Replace the Fan-Tray Assembly


Caution Do not force a fan-tray assembly into place. Doing so can damage the connectors on the fan tray and/or the connectors on the back panel of the shelf assembly.

To replace the fan-tray assembly (FTA) it is not necessary to move any of the cable management facilities.


Step 1 Open the front door of the shelf assembly:

a. Open the front door lock.

The ONS 15454 SDH comes with a pinned hex key for locking and unlocking the front door. Turn the key counterclockwise to unlock the door and clockwise to lock it.

b. Press the door button to release the latch.

c. Swing the door open.

Step 2 Remove the front door (optional). If you do not want to remove the door, proceed to Step 3.

a. Detach the ground strap from either the door or the chassis by removing one of the kep-nuts.

b. Place the Kepnut back on the stud after the ground strap is removed to avoid misplacement.

c. Secure the dangling end of the ground strap to the door or chassis with tape.

Step 3 Push the outer side of the handles on the fan-tray assembly to expose the handles.

Step 4 Fold out the retractable handles at the outside edges of the fan tray.

Step 5 Pull the handles and slide the fan-tray assembly one inch out of the shelf assembly and wait until the fans stop.

Step 6 When the fans have stopped, pull the fan-tray assembly completely out of the shelf assembly. Figure 3-2 shows the location of the fan tray.

Figure 3-2 Removing or Replacing the Fan-Tray Assembly (Front Door Removed)

Step 7 If you are replacing the fan-tray air filter and it is installed beneath the fan-tray assembly, slide the existing air filter out of the shelf assembly and replace it before replacing the fan-tray assembly.

For information on the fan-tray air filter, see the "Replace the Air Filter" section.

Step 8 Slide the new fan tray into the shelf assembly until the electrical plug at the rear of the tray plugs into the corresponding receptacle on the backplane.

Step 9 To verify that the tray has plugged into the backplane, check that the LCD on the front of the fan tray is activated.

Step 10 If you replace the door, also reattach the ground strap.


3.5 Replace the Small-Formfactor Pluggable Connector


Step 1 Unplug the SFP connector and fiber from the ML-series Ethernet card.

Step 2 If the SFP connector has a latch securing the fiber cable, pull it upward to release the cable.

Step 3 Pull the fiber cable straight out of the connector.

Step 4 Plug the fiber into a Cisco-supported SFP connector.

Step 5 If the new SFP connector has a latch, close the latch over the cable to secure it.

Step 6 Plug the cabled SFP connector into the ML-series Ethernet card port until it clicks.