Table Of Contents
Installing the Cisco UCS 5108 Server Chassis
Preparing for Installation
Rack Requirements
Cable Management
Airflow Considerations
Moving Server Chassis
Installation Guidelines
Required Equipment
Unpacking and Inspecting the Chassis
Attaching the Round Hole Adapter Kit to the Rails (Optional)
Installing the Chassis
Connecting a DC Power Supply
Required Tools
Installation Procedure
Cabling Considerations for Fabric Port Channels
Proper I/O Module and Port Fabric Interconnect Connectivity
Removing the Chassis from a Rack
Repacking the Chassis
SFP+ Transceivers
SFP+ Twinax Copper Transceivers
Optical SFP+ Transceivers
Replacing a Copper Twinax SFP+ Transceiver with an Optical SFP+ Transceiver
Installing the Cisco UCS 5108 Server Chassis
This chapter describes how to install the Cisco UCS 5108 server chassis and includes the following sections:
•
Preparing for Installation
•Installing the Chassis
•Repacking the Chassis
•SFP+ Transceivers
Note Before you install, operate, or service the system, see the Regulatory Compliance and Safety Information for Cisco UCS for important safety information.
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Warning IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.
Statement 1071
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SAVE THESE INSTRUCTIONS
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Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
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Warning Only trained and qualified personnel must be allowed to install, replace, or service this equipment. Statement 1030
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Preparing for Installation
This section includes the following topics:
•Rack Requirements
•Airflow Considerations
•Moving Server Chassis
•Installation Guidelines
•Required Equipment
•Unpacking and Inspecting the Chassis
Rack Requirements
This section provides the requirements for installing the Cisco UCS 5108 chassis in a standard open racks, assuming an external ambient air temperature range of 50 to 95oF (10 to 35oC):
Note Do not use racks that have obstructions. These obstructions could impair access to field-replaceable units (FRUs).
The Cisco R Series Racks are an ideal choice. If other racks will be used, the rack must be of the following type:
•Standard 19 inch (48.3 cm) four-post EIA rack, a minimum of 39.4 inches (100 cm) deep, with mounting rails that conform to English universal hole spacing per section 1 of ANSI/EIA-310-D-1992.
•The mounting holes of the rails in the rack must be square (unless the optional round hole adapter kit is used).
•The tool-less rack-mount kit shipped with the chassis is required. The adjustable rack rails shipped with each enclosure extend from 29 inches (73.66 cm) to 35 inches (88.9 cm)
•Front and rear doors: If your server rack includes closing front and rear doors, the doors must have 65 percent open perforated area evenly distributed from top to bottom to permit adequate airflow.
Caution Always use blanking panels to fill all remaining empty front panel U-spaces in the rack. This arrangement ensures proper airflow. Using a rack without blanking panels results in improper cooling that can lead to thermal damage.
The rack must also meet the following requirements:
•The minimum available vertical rack space per chassis must be six RU (rack units), equal to 10.5 inches (26.7 cm).
Cable Management
To help with cable management, allow additional space in the rack above and below the chassis to make it easier to route copper cables (plus up to eight copper cables per Cisco UCS 5108 server chassis) through the rack.
Airflow Considerations
Airflow through the chassis is from front to back. Air enters the chassis through the blade servers and power supply grills at the front of the chassis and exits through the fan modules on the back of the chassis. To ensure proper airflow, follow these guidelines:
•Maintain ambient airflow throughout the data center to ensure normal operation.
•Consider the heat dissipation of all equipment when determining air-conditioning requirements. Do not allow the exhaust of one system to be the intake for another system.
•When evaluating airflow requirements, take into consideration that the hot air generated by equipment at the bottom of the rack can be drawn in the intake of the equipment above.
•Make sure that the exhaust at the rear of the chassis is unobstructed for at least 24 in. (61 cm). This includes obstruction due to messy cables as shown in Figure 2-17.
•Some blade servers ship with internal shrouds that are placed over the DIMMs and CPUs. They are used to channel airflow to where it is needed the most. If a shroud can be used a given model, it should be used.
•If an enclosed rack is used, the front door must be 65% perforated to ensure adequate airflow to the servers.
Moving Server Chassis
When lifting the chassis, be aware of its weight, and follow these guidelines:
Caution Do not try to lift the chassis using the handles on the side. These handles are intended only for moving and adjusting the chassis' position.
•Never lift the chassis alone—always use two people to lift the chassis. If available, use a scissor jack or other lifting device designed for installing heavy equipment into data center racks.
•Disconnect all power and external cables before lifting the chassis.
•Remove all I/O modules, power supplies, fans, and servers from the chassis before lifting.
Caution Do not remove the Power Distribution Unit (PDU) located at the back of the chassis.
•Ensure that your footing is solid and the weight of the system is evenly distributed between your feet.
•Lift the system slowly, keeping your back straight. Lift with your legs, not with your back. Bend at the knees, not at the waist.
Installation Guidelines
When installing the chassis, follow these guidelines:
•Plan your site configuration and prepare the site before installing the chassis. See "Site Planning and Maintenance Records," for the recommended site planning tasks. Further detail is provided in the Cisco UCS Site Preparation Guide.
•Record the information listed in "Site Planning and Maintenance Records," as you install and configure the chassis.
•Ensure that there is adequate space around the chassis to allow for servicing the chassis and for airflow.
•Ensure that the air-conditioning meets the heat dissipation requirements listed in "Technical Specifications."
•Ensure that the cabinet or rack meets the requirements listed in Rack Requirements
Note Jumper power cords are available for use in a rack. See the "Cable and Power Cord Specifications" section.
•Ensure that the site power meets the power requirements listed in "Technical Specifications." If available, you can use an uninterruptible power supply (UPS) to protect against power failures.
Caution Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems such as the Cisco UCS system, which can have substantial current draw fluctuations from fluctuating data traffic patterns.
•Ensure that circuits are sized according to local and national codes. For North America, the power supply requires a 20-A circuit.
Caution To prevent loss of input power, ensure that the total maximum loads on the circuits supplying power to the chassis are within the current ratings for the wiring and breakers.
•Use the following torque values when installing the chassis:
–10-32 screws: 20 in-lb
Required Equipment
Before you begin the installation, ensure that you have the following items:
•Number 1 and number 2 Phillips-head screwdrivers with torque measuring capabilities
•Tape measure and level
•ESD wrist strap or other grounding device
•Antistatic mat or antistatic foam
Unpacking and Inspecting the Chassis
Caution When handling chassis components, wear an ESD strap and handle modules by the carrier edges only.
Tip Keep the shipping container in case the chassis requires shipping in the future.
Note The chassis is thoroughly inspected before shipment. If any damage occurred during transportation or any items are missing, contact your customer service representative immediately.
To inspect the shipment, follow these steps:
Step 1 Remove the chassis from its cardboard container. Save all packaging material.
Step 2 Compare the shipment to the equipment list provided by your customer service representative and verify that you have received the following items:
•Any printed documentation
•Tool-less rack-mount kit (N20-CRMK2=)—mounting rails can be installed in a rack without the use of tools. The optional round hole adapter kit (N20-CRMK2-RHA=) does require tools.
•ESD wrist strap
•Cables with connectors (including the N20-BKVM=, which is the KVM/local I/O console dongle)
•Any optional items ordered
Step 3 Verify that all unused blade slots and power supply bays have blank covers.
Attaching the Round Hole Adapter Kit to the Rails (Optional)
Note The chassis tool-less rails (see Figure 2-2) are designed for racks that have square mounting holes. You must use the round hole adapters to install the chassis in racks that have round mounting holes.
This round hole adapter kit allows you to adapt the rail kit (N20-CRMK2=) to install into rack (front and/or rear) posts that use either threaded or non-threaded round holes. Four adapters in the kit are for adapting the rail kit to install into rack posts with threaded round holes, and the other four adapters in the kit are for adapting the rail kit to install into rack posts with non-threaded round holes. You can use a combination of adapters based on the type of holes in the rack posts. Various sizes and lengths of screws are also included in the kit.
To install the Adapters (N20-CRMK2-RHA=) onto the rails, follow these steps:
Step 1 Insert the adapter tab into the mounting rail as shown in Figure 2-1, callout 1.
Step 2 Slide the adapter up to lock it into position as shown in Figure 2-1, callout 2.
Step 3 Secure the adapter into place using the provided pan-head screw as shown in Figure 2-1, callout 3.
Figure 2-1 Attaching the Round Hole Adapter (Optional)
Step 4 Repeat steps 1-3 for the other 3 adapters.
Installing the Chassis
This section describes how to install the chassis. This is a two part process, consisting of installing the rails into the rack, and then installing the chassis into the rack and on to the rails.
Caution Never attempt to lift the chassis by using an installed module's handle as a grip point.
Caution If the rack has wheels, ensure that the brakes are engaged, the stabilizing pads are extended, or that the rack is otherwise stabilized.
Table 2-1 lists the items in the tool-less rack-mount kit.
Table 2-1 Cisco UCS 5108 Server Chassis Rack-Mount Kit (N20-CRMK2=)
Quantity
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Part Description
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1
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Left tool-less rack mount rail
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1
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Right tool-less rack mount rail
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6
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10-32 X 0.75 Phillips round washer head screws
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6
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10-32 X 0.125 cage nuts
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Table 2-2 lists the items in the round hole adapter kit.
Table 2-2 Cisco UCS 5108 Server Round Hole Adapter Kit (N20-CRMK2-RHA=)
Quantity
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Part Description
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4
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Round hole adapters (threaded)
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4
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Round hole adapters (un-threaded)
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4
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Adapter securing screws
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16
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Phillips head screws for securing the rails to the rack
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Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019
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To install the tool-less rails into a square hole rack, follow these steps:
Step 1 Remove the mounting template (Cisco 78-19093-01) from the accessory box. The template is designed to show you the proper holes within which the rails and cage nuts should be placed. Once the rack holes line up with the template, you should mark the holes so that their position is known after removing the template.
Step 2 Adjust the length of the rail by sliding the ends of the rail back and forth until they match the depth of the rack (see Figure 2-2).
Figure 2-2 Adjusting the Tool-less Rack Mount Rail
Step 3 Place the two hooks at each end of the rail into the first two holes at a rack unit boundary (see Figure 2-3).
Figure 2-4 shows a rail mounted into a rack in the proper position with respect to a rack-unit boundary. Measurements are in inches between the centers of the holes.
Figure 2-3 Installing Tool-less Chassis Support Rails into the Rack
Figure 2-4 Hole Spacing for the Tool-less Rails in Relationship to a Rack Unit
Step 4 Press down firmly on the rail until the hooks seat firmly and securely into the holes, and the spring clip latches into place.
Step 5 Follow the same procedure to install the other rack rail.
Step 6 Use a tape measure and level to verify that the rack rails are horizontal and at the same height.
Step 7 Insert the cage nuts on to the rack, using Figure 2-5 and Figure 2-6 as a guide, or using the template provided in the accessory kit. When the rails are installed on a rack unit boundary, the first two cage nuts are installed into the seventh holes above the rails' horizontal plates. The next two cage nuts are installed into the fifth holes above the first cage nut. Finally, the two cage nuts are installed into the fourth holes above the second cage nuts (see Figure 2-5).
Figure 2-5 Placement of Rails and Cage Nuts with Respect to the Rack Unit Boundary
Figure 2-6 Proper Placement for the Rails and Cage Nuts
Step 8 Remove all power supplies, fan assemblies, server blades, and fabric extenders to lighten the chassis. Even with devices removed, the chassis weighs 90 lbs (40.83 kg).
Before installing the chassis in a round hole rack, prepare the rails by adding the adapter kit according to the instructions in "Attaching the Round Hole Adapter Kit to the Rails (Optional)". To install the round hole adapters and rail assembly into a rack, follow these steps:
Step 1 Remove the mounting template (Cisco 78-19093-01) from the accessory box. The template is designed to show you the proper holes within which the rails and cage nuts should be placed. Once the rack holes line up with the template, you should mark the holes so that their position is known after removing the template.
Step 2 Adjust the length of the rail by sliding the ends of the rail back and forth until they match the depth of the rack (see Figure 2-2).
Step 3 Place the adapters and rails even with a rack boundary at each end of the rail.
Step 4 Secure the rail to the rack with the provided pan head screws as shown in Figure 2-7.
Figure 2-7 Attaching the Mounting Brackets to a Round Hole Rack
Step 5 Follow the same procedure to install the other rack rail as shown in Figure 2-8.
Figure 2-8 Round Hole Adapter and Rails Installed in a Rack
Step 6 Use a tape measure and level to verify that both rack rails are horizontal and at the same height.
Step 7 Remove all power supplies, fan assemblies, server blades, and I/O modules to lighten the chassis. Even with devices removed, the chassis weighs 90 lbs (40.83 kg).
Insert the chassis into the rack as follows:
Step 1 With the help of another person (or special lifting equipment), lift the chassis and place it on the mounting rail as described in Figure 2-9.
Figure 2-9 Mounting Rail Weight Distribution (Square Hole Mount Shown)
Caution The mounting rails may come loose and cause the chassis to fall if the weight is resting on the wrong surface. Make sure the bottom of the chassis is resting on the correct rail surface.
Step 2 Slide the chassis into the rack until the front flange is flat against the cage nuts. (Cage nuts are not needed in round hole racks.)
Step 3 Using the six Phillips round washer head screws and the cage nuts (used in square hole installations), secure the chassis by its flanges to the rack (see Figure 2-10).
Figure 2-10 Securing the Chassis Into the Rack
Step 4 Replace all servers, fans, and power supplies back into their respective chassis slots. If necessary, refer to Chapter 3 "Installing and Removing Components."
Step 5 To power up the chassis, connect the appropriate AC power cables to the 220 VAC-inlet connector corresponding to each installed power supply, and then connect the other end of the cables to the power source. For a DC installation, refer to Connecting a DC Power Supply. For power source requirements, see Power Specifications. To determine the number of power supplies needed for a given configuration, refer the Cisco UCS Power Calculator.
Note Both grids in a power redundant system should have the same number of power supplies. If your system is configured for grid redundancy, slots 1 and 2 are assigned to grid 1 and slots 3 and 4 are assigned to grid 2. If there are only two power supplies (PS) in the a redundant- mode chassis, they should be in slots 1 and 3. Slot and cord connection numbering is shown in Figure 2-11.
Figure 2-11 Power Supply Bay and Connector Numbering
Step 6 Connect the server chassis to the fabric interconnect as described in Proper I/O Module and Port Fabric Interconnect Connectivity.
Connecting a DC Power Supply
This section describes how to connect power to the rear PDU terminals on the DCS version chassis (UCSB-5108-DC) corresponding to a UCS 5108 DC power supply (UCSB-PSU-2500DC48).
Required Tools
You will need the following tools to perform this procedure:
•A Phillips screwdriver
•A 10-mm wrench/socket
•Connectors and wire for the DC circuit or circuits
Installation Procedure
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Warning When stranded wiring is required, use approved wiring terminations, such as closed-loop or spade-type with upturned lugs. These terminations should be the appropriate size for the wires and should clamp both the insulation and conductor. Statement 1002
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Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003
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Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022
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Warning Use copper conductors only. Statement 1025
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Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045
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Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046
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Warning Installation of the equipment must comply with local and national electrical codes. Statement 1074
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Warning Hazardous voltage or energy may be present on DC power terminals. Always replace cover when terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in place. Statement 1075
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Follow these steps to connect a DC-input power supply to a power source, and verify its operation:
Step 1 Install the DC power supply in the chassis, making note of the bay number, so you are sure to connect the wiring to the appropriate terminals on the DC PDU at the chassis rear. Bay and terminal numbering is shown in Figure 2-11, which uses an AC example. The numbering scheme is the same.
Step 2 Verify that power is off to the DC circuit or circuits on the power supply you are installing.
Step 3 Ensure that all site power and grounding requirements have been met.
Step 4 Remove the plastic cover from the DC terminals by squeezing the flanges at the top and bottom of the cover.
Step 5 Connect the ground wires to the power supply terminal block, shown as a green wire in the first step of Figure 2-12. Only one ground connection is required, though there may be up to four DC connections.
Step 6 Connect the DC-input wires to the power supply terminal block. The proper wiring sequence is positive to positive (red wire), and negative to negative (black wire) See Figure 2-12, which shows a connection to terminal 1.
Note The positive and negative wires can be installed pointing either to the right or to the left so long as the terminal cover is used. Figure 2-12 shows them pointed to the right. Panduit LCD4-14A-L connectors may be used for the supply and return wires, and Panduit LCD4-14AF-L or equivalent connectors may be used for the 90-degree ground lug wire. Both connections have double lugs with .25 " holes measuring .625" from center to center.
Figure 2-12 Connecting DC Power to the Chassis (shows DC PDU only, Chassis is Omitted)
Step 7 Replace the terminal cover as shown in Figure 2-12. This cover should always be in place when power is applied to the terminals.
Step 8 Connect the other end of the power wires to a DC-power input source.
Step 9 Set the DC disconnect switch in the circuit to ON.
Caution In a system with multiple power supplies, connect each power supply to a separate DC power source. In the event of a power source failure, if the second source is still available, it can maintain system operation.
Step 10 Verify power supply operation by checking the power supply's front-panel LEDs. You should see the following:
–The LED labeled INPUT OK is green.
–The LED labeled OUTPUT FAIL is not lit.
Step 11 Check the power supply and system status from the UCS console by entering the show system command or the show power command, do using the GUI. For more information on these commands, refer to the command reference for your software.
Cabling Considerations for Fabric Port Channels
When you configure the links between the UCS 2208 IOM to the UCS 6248 fabric interconnect in fabric port channel mode, the available VIF namespace on the adapter varies depending on where the IOM uplinks are connected to the fabric interconnect ports.
Inside the 6248 fabric interconnect there are six sets of eight contiguous ports, with each set of ports managed by a single chip. When uplinks are connected such that all of the uplinks from an IOM are connected to a set of ports managed by a single chip, Cisco UCS Manager maximizes the number of VIFs used in service profiles deployed on the blades in the chassis. If uplink connections from an IOM are distributed across ports managed by separate chips, the VIF count is decreased.
Figure 2-13 Port Groups for Fabric Port Channels
Caution Adding or removing links from a fabric port channel is disruptive and may affect the available amount of VIF namespace.
For high availability cluster mode applications, symmetric cabling configurations are strongly recommended. If the cabling is asymmetric, the maximum number of VIFs available is the smaller of the two cabling configurations.
For more information on the maximum number of VIFs for your Cisco UCS environment, see the configuration limits document for your for your hardware and software configuration.
Proper I/O Module and Port Fabric Interconnect Connectivity
Note The following illustrations show connections between the chassis I/OMs and the fabric interconnects. These connections are for example only, you do not need to connect all of the I/OM's ports to the fabric interconnect. Refer to the UCS Manager configuration guide for FI port configuration considerations and limitations.
Figure 2-14 shows the correct method to connect the I/O modules to two separate port fabric interconnects. You must connect each port fabric interconnect to the chassis through its own I/O module.
Figure 2-14 Proper Connection for the Server Chassis and two Cisco UCS 6120XP Fabric Interconnects
All ports of a I/O module must be connected to only one fabric interconnect. If you need to connect to a second fabric interconnect, you must add a second I/O module to the chassis. Additionally, all ports of the second I/O module must be connected to the second fabric interconnect only. Figure 2-15 shows an example of an incorrect connection between a second port fabric interconnect and one I/O module. The second fabric interconnect should be connected to the second I/O module installed in the chassis.
Figure 2-15 Example of Incorrect Method of Connecting the Chassis and Two Cisco UCS 6120XP Fabric Interconnects
When you connect the server chassis to the Fabric Interconnect do not connect the I/O modules to the Fabric Interconnect's fibre expansion modules (see Figure 2-16). While similar in appearance to the other ports on the Fabric Interconnect, the expansion modules are never used for direct chassis connections.
Figure 2-16 Do Not Connect the Chassis to the Fabric Interconnect's Expansion Modules
Cable management can be an important factor in preventing overheating issues. In Figure 2-17, the "before" illustration shows cables blocking the rear of the chassis, and preventing the fans from exhausting warm air from the chassis. This situation causes failed DIMMs in the blade servers, and seemingly random server shutdowns when internal temperatures exceed specification. Use cable ties and other wiring practices to keep the rear of the chassis unobstructed as shown in the "after" illustration.
Figure 2-17 Cable Management
Removing the Chassis from a Rack
If you plan to remove a chassis from a UCS system and then from a rack you should first:
1. Use UCS Manager to shut down the OS on all blade servers in the chassis. Graceful shutdown of a blade server is discussed in the "System Management" section, "Managing Blade Servers" chapter of the UCS Manager configuration guide for your software release. The related CLI commands are:
UCS-A /org # scope service-profile service-profile-name
UCS-A /org/service-profile # power down
2. Disable the Smart Call Home feature, as mentioned in the "System Monitoring" section, "Configuring Call Home" chapter of the UCS Manager configuration guide for your software release. The related CLI commands are:
UCS-A /monitoring # scope callhome
UCS-A /monitoring/callhome # disable
3. Decommission the chassis as described in the "System Management" section, "Managing the Chassis" chapter of the UCS Manager configuration guide for your software release. The related CLI command is decommission-chassis chassis-num .
To physically remove the chassis from a rack, follow these steps:
Step 1 Disconnect the power cords and networking cables from the chassis.
Step 2 Remove all modules and blades from the chassis to lighten its weight.
Step 3 Remove the screws holding the front rack-mount flange to the rack.
Step 4 With two people holding the chassis, make sure that its weight is fully supported.
Step 5 Gently slide the chassis off the rails, and out of the rack.
Step 6 Replace the modules and blades in the server chassis.
Repacking the Chassis
If you need to repack the chassis, remove it from the rack by following the steps in the "Removing the Chassis from a Rack" section, and then pack it for shipment. If possible, use the original packing materials and container to pack the chassis. If you are returning the chassis to Cisco Systems, contact your Cisco customer service representative to arrange for return shipment to Cisco.
SFP+ Transceivers
Each Cisco UCS 2104XP I/O module within the chassis supports up to four Small Form-Factor Pluggable (SFP+) copper or optical transceivers. Each transceiver runs at 10 Gb.
SFP+ Twinax Copper Transceivers
The Cisco UCS 2104XP I/O module supports Twinax copper transceivers. The enhanced SFP+ 10-Gb Ethernet transceiver is a bidirectional device with a transmitter and receiver in the same physical package. It has a 20-pin connector on the electrical interface.
Table 2-3 SFP+ 10 Gb Ethernet Transceiver
Model
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Description
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SFP-H10GB-CU1M
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10-Gb Ethernet—copper SFP+ (1 m, 3.28 ft.)
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SFP-H10GB-CU3M
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10-Gb Ethernet—copper SFP+ (3 m, 9.84 ft.)
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SFP-H10GB-CU5M
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10-Gb Ethernet—copper SFP+ (5 m, 16.4 ft.)
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SFP-H10GB-ACU7M
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10-Gb Ethernet—copper SFP+ (7 m, 22.9 ft.)
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SFP-H10GB-ACU10M
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10-Gb Ethernet—copper SFP+ (10 m, 32.8 ft.)
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Figure 2-18 shows the SFP-H10GB-CU5M transceiver. The rubber loop is used for removing the SFP+ from its port on the I/O module.
Figure 2-18 SFP+ 10 Gb Twinax Copper Transceiver
Optical SFP+ Transceivers
If distances greater than 5 meters (16.4 feet) must be spanned, the I/O module supports the substitution of the copper SFP+ by optical SFP+ transceivers. The SFP+ 10-Gb Ethernet optical transceiver is a bidirectional device with a transmitter and receiver in the same physical package. It has a duplex LC connector on the optical interface.
Model
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Description
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SFP-10G-SR
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Short-range optical SFP+ (up to 300 m/ 984 feet)
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SFP-10G-LR 1
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Long-range optical SFP+ (up to 10 km/6.2 miles)
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Documentation for SFP+ 10-Gb Ethernet optical transceivers is at:
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/installation/note/78_15160.html
Replacing a Copper Twinax SFP+ Transceiver with an Optical SFP+ Transceiver
To replace a copper Twinax SFP+ transceiver with an optical SFP+ transceiver, follow these steps:
Step 1 Remove the copper Twinax SFP+ from the I/O module port by pulling gently on the rubber loop (see Figure 2-19). The cable and SFP+ transceiver come out as a single unit, leaving the I/O module port empty.
Step 2 Insert the optical SFP+ transceiver into the I/O module port. Make sure that it clicks firmly into place.
Step 3 Plug the fiber optic cable into the optical SFP+ transceiver (see Figure 2-20).
Figure 2-19 Removing a Twinax Copper SFP+ Transceiver
Figure 2-20 Replacing a Copper SFP+ Transceiver With an Optical SFP+ Transceiver
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