It is recommended that before extracting a system card, you attach a grounding strap to your wrist or ankle and the ESD ground jack located on the front or rear panels of the chassis. Refer to DSC 8000 ESD Requirements for the locations of the ground jacks on the DSC Platform chassis.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Failure to follow proper Electrostatic Discharge (ESD) guidelines when handling sensitive hardware can damage the equipment. Refer to the Ribbon ESD procedure Connecting Electrostatic Discharge Wrist Strap for information on protecting yourself and the equipment.
A #2 Phillips-head screwdriver is required to loosen the faceplate retention screws on all cards installed in the DSC 8000 chassis.
An extraction tool such as the AMC Xtractor that is manufactured by Xtech, is required for card removal. The following illustration shows this extractor tool. Two extraction tools are provided with the DSC 8000 chassis in the shipping container accessory box at the time of deployment. Additional extraction tools can be obtained from Ribbon (Ribbon PT-Q0AMCEX-31004). Contact Sales for more information.
Xtractor tool needed for AMC and MCH card removal
![](/download/thumbnails/437092493/Xtech%20Xtractor%20tool.jpg?version=1&modificationDate=1706896670104&api=v2)
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
When following the insertion and extraction procedures, the proper card removal and insertion sequence must be followed to avoid damage to the hardware. The system cards must be removed in the following order:
- Pull ejector on FRONT card (AMC671 MCH, AMC124 CPU, or AMC348 I/O) - wait for Blue LED to be solid
- Pull ejector on REAR card (RMC670 µRTM, RMC110 µRTM, or RMC348 uRTM) - wait for Blue LED to be solid
- Unscrew and remove REAR card
- Unscrew and remove FRONT card
Following these instructions avoid excessive force applied to the front card during extraction and ensures the connectors are properly seated in their slots (refer to Seating AMCs, MCHs, and µRTMs) during card insertion.
You can extract DSC Platform cards on a live system. The faceplate ejection handle, when pulled, activates a switch that starts the card's internal shutdown process. A card that has completed the shutdown process and is subsequently removed from a slot, does not affect other cards installed and running in the chassis.
Before extracting a system card from the DSC 8000 chassis, it is recommended that you verify the status of the given card using the Slot Monitor.
Before extracting a system card, the Slot Monitor should show the following for the card's status:
- Slot Type: <card type>
- Slot Status: AVAILABLE
After extracting a system card, the Slot Monitor should show the following for the slot's status (after about one minute) from which you extracted this card.
- Slot Type: vacant
- Slot Status: EXTRACTED
If the Slot Monitor does not display the slot status after a system card is extracted as shown in the preceding bulleted list, the extraction was unsuccessful, and, therefore, the system card is still in the slot or the connection to the system card is lost.
Start
- From the Main Menu, click Slot Monitor.
![](/download/attachments/437093323/r_SlotMonitor.PNG?version=1&modificationDate=1706898138751&api=v2)
- For detailed information about the system card that you have extracted, click the required slot number.
The following screen capture shows the details for a successfully extracted system card.
![](/download/attachments/437093325/r_SlotMonitor_Slot_EXTRACTED.PNG?version=1&modificationDate=1706898141231&api=v2)
Extracting and RMC670 µRTM and an AMC671 MCH
Follow the instructions in this section to extract an RMC670 µRTM and an AMC671 MCH from a DSC Platform chassis.
To extract an RMC670 µRTM (rear card) and an AMC671 MCH (front card)
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting a card requires a significant amount of force to disengage the connectors. It is important the proper card removal sequence is followed. The RMC670 (rear card) must be removed first before the AMC671 MCH (front card) is extracted. Otherwise, excessive force applied to the AMC671 MCH during extraction can damage the hardware.
Disconnect any peripheral device cables from the AMC671 MCH and the RMC670 µRTM.
Tip
Label the cables before you disconnect them from the interface ports to avoid confusion during card installation.
Pull the ejection handle out completely from the faceplate on the AMC671 MCH to unlock the card.
The blue hot-swap LED on the faceplate blinks momentarily before illuminating.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
The blue hot-swap LED blinks on the card's faceplate to indicate the faceplate ejection handle is open and the card's internal system has started the shutdown sequence. It is not safe to extract the card in this state.
An illuminated blue hot-swap LED indicates the AMC671 MCH card has transferred monitoring processes to the second active AMC671 MCH card and has completed the internal shutdown process.
Pull the ejection handle out completely from the faceplate on the RMC670 µRTM to unlock the card. Pulling the ejection handle is a multiposition action. As you are gently pulling on the handle, two stops may be felt. The following diagram shows the ejection handle mechanism.
The blue hot-swap LED on the faceplate blinks momentarily before illuminating.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
The blue hot-swap LED blinks on the card's faceplate to indicate the faceplate ejection handle is open and the card's internal system has started the shutdown sequence. It is not safe to extract the card in this state.
The blue hot-swap LED remains illuminated after the card's internal system reverts to an inactive state and payload power is disabled.
![](/download/attachments/436863634/14.3%20DSC%208000%20HandlePosition.jpg?version=1&modificationDate=1706897064900&api=v2)
Use a #2 Phillips-head screwdriver to turn the faceplate retention screws on the RMC670 µRTM counter-clockwise until they completely disengage from the chassis and the faceplate is released. The following diagram shows the removal of the faceplate retention screw.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Attempting to remove a card without fully disengaging the faceplate retention screws from the chassis nutbar can damage the hardware.
![](/download/attachments/437092493/DSC%208000%20faceplate%20Retention%20Screw%20and%20Ejector.jpg?version=1&modificationDate=1706896669692&api=v2)
Use an extraction tool and grasp the faceplate ejection handle tool opening to carefully remove the RMC670 µRTM. The following diagram shows the AMC extraction tool inserted into the ejection handle.
![](/download/attachments/436863634/14.3%20DSC%208000%20Ejector%20with%20tool.PNG?version=1&modificationDate=1706897066525&api=v2)
- Use a #2 Phillips-head screwdriver to turn the retention screws on the AMC671 MCH faceplate counter-clockwise until they completely disengage from the chassis and the faceplate is released.
- Using an extraction tool, grasp the upper Ejector tool opening on the AMC671 MCH faceplate by doing the following:
- Insert the elbow of the extraction tool into the upper Ejector tool opening. See the following diagram for the location of the faceplate tool openings.
![](/download/attachments/437092493/AMC671%20MCH%20Faceplate%20Extraction%20Tool%20holes.JPG?version=1&modificationDate=1706896671426&api=v2)
- Rotate the extraction tool upwards. See the following image for a description of the motion required to grasp the faceplate with the tool.
![](/download/attachments/437092493/Inserting%20Xtractor%20tool%20in%20MCH%20faceplate.jpg?version=1&modificationDate=1706896673094&api=v2)
Using a second extraction tool, grasp the lower ejection handle tool opening on the AMC671 MCH faceplate.
Apply a steady pulling force on both upper and lower extraction tools to carefully remove the AMC671 MCH card from the chassis. See the following image that shows the removal of an AMC671 MCH card using two extraction tool.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting an AMC671 MCH card requires a significant amount of force to disengage the four connectors. It is important to pull the ejection handle straight out using the extraction tool. Doing otherwise can deform or break the handle switch. The front panel on an AMC671 MCH card includes an additional 3mm hole in the upper faceplate for a second extraction tool. Always use two extraction tools, upper and lower, to remove an AMC671 MCH card; otherwise, the hardware can be damaged.
![](/download/attachments/437092493/Removing%20an%20MCH.jpg?version=1&modificationDate=1706896668491&api=v2)
Extracting a card compromises the airflow to cards remaining in the system. Make sure that a replacement card or the appropriate Air Management Blade is readily available to fill the vacated slot. Refer to Supported Air Management Blades (AMBs).
The procedure for extracting Air Management Blades is identical to the procedure for extracting the AMC124. The only difference being is that the AMBs are not equipped with ejection handles; therefore, follow the instructions for extracting AMC124, but skip the steps for using the ejection handles.
Optionally Decommissioning an RMC110 µRTM and an AMC124 Routing CPU
If an optional Routing CPU is being removed permanently or is being moved to another slot, prior to extracting this card, the given card must be decommissioned.
If an optional Routing CPU is being removed in order to replace it with another card of the same type (for example to replace a broken card), then do not decommission this card before you extract the given card.
This section provides you with instructions for decommissioning a Routing CPU. Decommissioning a Routing CPU comprises the following steps:
Start
- From the Main Menu, select System and press ENTER.
- Select Software Revisions and press ENTER.
Select CPU Versions and press ENTER.
AVAILABLE SOFTWARE VERSIONS
--------------------------------------------------------------------------------
No new load detected on system. Upload and run load .sh file on /var/log before attempting upgrade.
CPU (current) dsc_8000_18_1_0_nb20190930 OS: Ribbon7.4.16
(Servicepack) [none applied]
CPU (previous) dsc_8000_16_1_0_nb20180111 OS: 16.4.13
(Servicepack)
RUNNING SOFTWARE VERSIONS (*=update required, ?=update unknown)
CARD BUILD SERVICE O/S
-SLOT----TYPE----------RELEASE--VERSION----PACK---IMAGE-------CARD STATUS---
--------------------------------------------------------------------------------
Slot 2 MGMT 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 19 procs running
Slot 13 MGMT 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 19 procs running
Slot 3 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 24 procs running
Slot 5 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 11 procs running
Slot 6 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 31 procs running
Slot 9 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
Slot 10 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
Slot 12 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 24 procs running
(p=servicepack is partially applied)
Select CPU Slot number (5 6 9 10) to decommission an optional CPU.
Enter slot # or ENTER to cancel:
Select the slot in which the CPU you want to decommission appears and press ENTER (in this example, slot 6).
Enter slot # or ENTER to cancel: 6
Software Update for CPUs
Determining running and current software version. Please wait...
Running on CPU (slot6_0):
-Load: dsc_8000_18_1_0_nb20190930
-OS: Ribbon7.4.16
-Servicepack: [none applied]
Current CPU version (on MGMT CPU):
-Load: dsc_8000_18_1_0_nb20190930
-OS: Ribbon7.4.16
-Servicepack: [none applied]
No software change to perform.
'd' - Decommission this CPU slot to prepare it for removal.
Select action to take, or any other key to cancel:
- When you are prompted, type d and then press ENTER.
![](/download/attachments/437092493/15.0.0%20decommission%20CPU_updated_2.png?version=1&modificationDate=1706896670551&api=v2)
- When you are prompted, type y and then press ENTER.
![](/download/attachments/437092688/15.0.0%20decommission%20CPU.png?version=1&modificationDate=1706896905508&api=v2)
![](/download/attachments/437092688/15.0.0%20decommission%20CPU_3.png?version=1&modificationDate=1706896906066&api=v2)
- Press ENTER.
- Perform steps 3 to 7 as required to decommission other CPUs on the system with the exception of the Routing CPU cards inserted in slots 3 and 12.
- Navigate to the Available Software Versions screen and confirm that the card(s) has been decommissioned.
- Extract the CPU from its slot [(see To extract an RMC110 µRTM (rear card) and an AMC124 (front card)].
- If required, cover the unpopulated slot with an AMB (see To cover an unpopulated slot with an AMB).
Decommissioning an RMC110 µRTM and an AMC124 DB Application CPU
If a DB Application CPU is being removed permanently or is being moved to another slot, prior to extracting this card, the card must be deconfigured and decommissioned.
If a DB Application CPU is being removed in order to replace it with another card of the same type (for example to replace a broken card), do not decommission this card before you extract the given card.
Decommissioning a DSC DB Application CPU comprises the following steps:
Start
- From the Main Menu select Software Versions, and press ENTER.
- Select DSC DB, and press ENTER.
- Select DSC DB Configuration, and press ENTER.
![](/download/attachments/437092877/14.3.0%20deconfigure%20DSC%20DB%20CPU_1.png?version=1&modificationDate=1706897043798&api=v2)
- Enter slot number of the CPU that you want to deconfigure (in this procedure, slot 9).
- Enter the action to perform on the CPU in slot 9.
![](/download/attachments/437092877/14.3.0%20deconfigure%20DSC%20DB%20CPU_2.png?version=1&modificationDate=1706897045624&api=v2)
- Enter r and press ENTER.
- You are prompted to confirm if you want to remove the CPU that is in slot 9.
- Enter y and press ENTER.
![](/download/attachments/437092877/14.3.0%20deconfigure%20DSC%20DB%20CPU_3.png?version=1&modificationDate=1706897047036&api=v2)
- Press ENTER to invoke the changes.
![](/download/attachments/437092877/14.3.0%20deconfigure%20DSC%20DB%20CPU.png?version=1&modificationDate=1706897044079&api=v2)
- Press ENTER
- Go to To decommission a DSC DB Application CPU.
Start
- After you have deconfigured the DSC DB Application CPU (see To deconfigure a DSC DB Application CPU), from the Main Menu select Software Versions and press ENTER.
Select CPU Versions and press ENTER.
AVAILABLE SOFTWARE VERSIONS
--------------------------------------------------------------------------------
No new load detected on system. Upload and run load .sh file on /var/log before attempting upgrade.
CPU (current) dsc_8000_18_1_0_nb20190930 OS: Ribbon7.4.16
(Servicepack) [none applied]
CPU (previous) dsc_8000_16_1_0_nb20180111 OS: 16.4.13
(Servicepack)
RUNNING SOFTWARE VERSIONS (*=update required, ?=update unknown)
CARD BUILD SERVICE O/S
-SLOT----TYPE----------RELEASE--VERSION----PACK---IMAGE-------CARD STATUS---
--------------------------------------------------------------------------------
Slot 2 MGMT 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 19 procs running
Slot 13 MGMT 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 19 procs running
Slot 3 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 24 procs running
Slot 5 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 11 procs running
Slot 6 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 31 procs running
Slot 9 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
Slot 10 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
Slot 12 ROUTING 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 24 procs running
Slot 26 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
Slot 27 APPLICTN 18.1.0 (nb20190930) SP: OS: Ribbon7.4.16 12 procs running
(p=servicepack is partially applied)
Select CPU Slot number (5 6 9 10 26 27) to decommission an optional CPU.
Enter slot # or ENTER to cancel:
Enter the slot number of the Application CPU that you want to decommission and press ENTER. (in this example, slot 26).
Enter slot # or ENTER to cancel: 26
Software Update for CPUs
Determining running and current software version. Please wait...
Running on CPU (slot26_0):
-Load: dsc_8000_18_1_0_nb20190930
-OS: Ribbon7.4.16
-Servicepack: [none applied]
Current CPU version (on MGMT CPU):
-Load: dsc_8000_18_1_0_nb20190930
-OS: Ribbon7.4.16
-Servicepack: [none applied]
No software change to perform.
'd' - Decommission this CPU slot to prepare it for removal.
Select action to take, or any other key to cancel:
- Enter d and press ENTER.
![](/download/attachments/437092877/14.1.0%20x511e%20decommission%20UDR%20DB%20Application%20CPU%20_3.png?version=1&modificationDate=1706897044387&api=v2)
Enter y and press ENTER.
![](/download/attachments/437092877/14.1.0%20x511e%20decommission%20UDR%20DB%20Application%20CPU%20_4.png?version=1&modificationDate=1706897044724&api=v2)
- Extract the CPU from its slot [(see To extract an RMC110 µRTM (rear card) and an AMC124 (front card)].
- If required, cover the unpopulated slot with an AMB (see To cover an unpopulated slot with an AMB).
Start
Insert the 16GB USB key into the either USB port (as shown in the preceding two illustrations) on one of the Management CPUs or its respective RTM (slot 2 or 13).
Click Backups.
![](/download/attachments/437092678/complete%20system%20backup.PNG?version=1&modificationDate=1706896900629&api=v2)
- Click Complete System Backup.
- Click Start System Backup.
The DSC 8000 automatically executes the complete system backup and a message is displayed to inform you when the backup is completed.
Extracting an RMC110 µRTM and an AMC124 CPU
This section provides you with information for extracting an RTM110 µRTM (rear card) and its respective AMC124 CPU (front card).
To extract an RMC110 µRTM (rear card) and an AMC124 (front card)
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting a card requires a significant amount of force to disengage the connectors. It is important the proper card removal sequence is followed. The RMC110 µRTM must be removed first before the AMC124 is extracted. Otherwise, excessive force applied to the AMC124 during extraction can damage the hardware.
Use the Stop All Software Applications command to properly stop all software applications on the CPU for which you want to remove the RMC110. For information about this command, refer to Using the System Start and Stop Commands in the DSC - SP2000 Platform Manager User Guide.
Attach a grounding strap to your wrist or ankle and the ESD ground jack located on the front or rear panels of the chassis. Refer to DSC 8000 ESD Requirements for the locations of the ground jacks on the DSC 8000 chassis.
Caution
Failure to follow proper Electrostatic Discharge (ESD) guidelines when handling sensitive hardware can damage the equipment. Refer to the Ribbon ESD procedure Connecting Electrostatic Discharge Wrist Strap for information on protecting yourself and the equipment.
Disconnect any peripheral device cables from the AMC124 and the RMC110 µRTM.
Tip
Label the cables before you disconnect them from the interface ports to avoid confusion during card installation.
Pull the ejection handle all the way out from the faceplate on the AMC124 to unlock the card.
The blue hot-swap LED on the AMC124 faceplate blinks momentarily before illuminating.
Pull the ejection handle all the way out from the faceplate on the RMC110 µRTM to unlock the card. Pulling the ejection handle is a multiposition action. As you are gently pulling on the handle, two stops may be felt. The following figure shows the ejection handle mechanism.
The blue hot-swap LED on the faceplate blinks momentarily before illuminating.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
The blue hot-swap LED blinks to indicate the faceplate ejection handle is open and the card's internal system has started the shutdown sequence. It is not safe to extract the card in this state.
The blue hot-swap LED blinks momentarily and then remains illuminated after the card's internal system reverts to an inactive state and payload power is disabled. An illuminated (solid blue) hot-swap LED indicates it is safe to extract the card.
Use a #2 Phillips-head screwdriver to turn the faceplate retention screws on the RMC110 µRTM counter-clockwise until they completely disengage from the chassis and the faceplate is released. The following figure shows the removal of the faceplate retention screw.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Attempting to remove a card without fully disengaging the faceplate retention screws from the chassis nutbar can damage the hardware.
Grasp the ejection handle tool opening on the RMC110 µRTM faceplate with an extraction tool and apply a steady pulling force to carefully remove the RMC110 µRTM from the chassis. The following figure shows the AMC extraction tool inserted in the ejection handle
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting a card requires a significant amount of force to disengage the connectors. It is important to pull the faceplate ejection handle straight out using the extraction tool. Doing otherwise can deform or break the handle switch.
![](/download/attachments/436863634/14.3%20DSC%208000%20Ejector%20with%20tool.PNG?version=1&modificationDate=1706897066525&api=v2)
Grasp the ejection handle tool opening on the AMC124 faceplate with an extraction tool and apply a steady pulling force to carefully remove the AMC124 card from the chassis.
Extracting an RMC348 μRTM and an AMC348 I/O
This section provides you with information for extracting an RMC348 µRTM (rear card) and its respective AMC348 I/O (front card).
To extract an RMC348 µRTM (rear card) and an AMC348 I/O (front card)
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting a card requires a significant amount of force to disengage the connectors. It is important the proper card removal sequence is followed. The RMC348 µRTM must be removed first before the AMC348 I/O is extracted. Otherwise, excessive force applied to the AMC348 during extraction can damage the hardware.
Use the Stop All Software Applications command to properly stop all software applications on the I/O Slot for which you want to remove the RMC348. For information about this command, refer to Using the System Start and Stop Commands in the DSC - SP2000 Platform Manager User Guide.
Attach a grounding strap to your wrist or ankle and the ESD ground jack located on the front or rear panels of the chassis. Refer to DSC 8000 ESD Requirements for the locations of the ground jacks on the DSC 8000 chassis.
Caution
Failure to follow proper Electrostatic Discharge (ESD) guidelines when handling sensitive hardware can damage the equipment. Refer to the Ribbon ESD procedure Connecting Electrostatic Discharge Wrist Strap for information on protecting yourself and the equipment.
Disconnect any peripheral device cables from the AMC348 and the RMC348 µRTM.
Tip
Label the cables before you disconnect them from the interface ports to avoid confusion during card installation.
Pull the ejection handle all the way out from the faceplate on the AMC348 to unlock the card.
The blue hot-swap LED on the AMC348 faceplate blinks momentarily before illuminating.
Pull the ejection handle all the way out from the faceplate on the RMC348 µRTM to unlock the card. Pulling the ejection handle is a multiposition action. As you are gently pulling on the handle, two stops may be felt. The following figure shows the ejection handle mechanism.
The blue hot-swap LED on the faceplate blinks momentarily before illuminating.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
The blue hot-swap LED blinks to indicate the faceplate ejection handle is open and the card's internal system has started the shutdown sequence. It is not safe to extract the card in this state.
The blue hot-swap LED blinks momentarily and then remains illuminated after the card's internal system reverts to an inactive state and payload power is disabled. An illuminated (solid blue) hot-swap LED indicates it is safe to extract the card.
Use a #2 Phillips-head screwdriver to turn the faceplate retention screws on the RMC348 µRTM counter-clockwise until they completely disengage from the chassis and the faceplate is released. The following figure shows the removal of the faceplate retention screw.
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Attempting to remove a card without fully disengaging the faceplate retention screws from the chassis nutbar can damage the hardware.
Grasp the ejection handle tool opening on the RMC348 µRTM faceplate with an extraction tool and apply a steady pulling force to carefully remove the RMC348 µRTM from the chassis. The following figure shows the AMC extraction tool inserted in the ejection handle
Caution
![](/download/thumbnails/436864182/ESD_Symbol_EIA-471_%20Label.png?version=1&modificationDate=1706898670914&api=v2)
Extracting a card requires a significant amount of force to disengage the connectors. It is important to pull the faceplate ejection handle straight out using the extraction tool. Doing otherwise can deform or break the handle switch.
Grasp the ejection handle tool opening on the AMC348 faceplate with an extraction tool and apply a steady pulling force to carefully remove the AMC348 card from the chassis.
Extracting a card compromises the airflow to cards remaining in the system. Make sure that a replacement card or the appropriate Air Management Blade is readily available to fill the vacated slot. Refer to Supported Air Management Blades (AMBs).
The procedure for extracting Air Management Blades is identical to the procedure for extracting the AMC348. The only difference being is that the AMBs are not equipped with ejection handles; therefore, follow the instructions for extracting AMC348, but skip the steps for using the ejection handles.
For information about decommissioning an AMC348 I/O card, refer to Decommissioning an I/O Card.