Removal and Installation of an NPE or NSE

Ensuring Easy Access to the Router

Removing and Installing the NPE or NSE

Powering Down the Router and Disconnecting Input Power

Powering Down the Router

Disconnecting AC-Input Power

Disconnecting DC-Input Power

Removing the NPE or NSE

Installing the NPE or NSE

Reconnecting Input Power and Powering Up the Router

Reconnecting AC-Input Power

Reconnecting DC-Input Power

Powering Up the Router

Removal and Installation of an NPE or NSE

This chapter describes how to remove a network processing engine (NPE) or network services engine (NSE) from supported platforms and also how to install a replacement network processing engine or network services engine. This chapter contains the following sections:

Ensuring Easy Access to the Router

If your Cisco 7200 VXR series router is installed in a standard 19-inch, 4-post or telco-type rack, cables from other equipment in the rack might obstruct access to the rear of the router. Also, rack power strips or other permanent fixtures may obstruct access to the router. Review the following guidelines to ensure easy access to the rear of the router when it is installed in a rack. If the router is not installed in a rack, or if you already have clear access to the rear of the router, proceed to the "Removing and Installing the NPE or NSE" section.

Use the following guidelines to ensure easy access to the rear of the router when it is installed in a rack:

Ensure that you have at least 3 to 4 feet of working space at the rear of the router.
If cables from other equipment in the rack fall in front of the rear end of the router, carefully gather the cables (using care not to strain them) and use cable ties to anchor them away from the rear of the router.
If access to the rear of the router is partially blocked by a power strip or some other permanent rack fixture, detach the router from the rack and carefully slide it forward until there is enough clearance to remove the power supply, the network processing engine, and the subchassis from the router. Detailed steps for detaching the router from the rack are contained in the "Removing and Installing the NPE or NSE" section.

Caution Make sure that at least one other person is available to support the front of the router as you slide it out from the rack and, if necessary, to continue to support it while you remove and insert the power supply, network processing engine, or subchassis.

Removing and Installing the NPE or NSE

The procedures for removing and replacing an NPE or NSE are the same for all Cisco 7200 series routers, including the Cisco 7206 and Cisco 7206VXR when used as router shelves in the Cisco AS5800 Universal Access Server.

The illustrations and procedures in the following sections apply to the Cisco 7200 series routers and the Cisco AS5800 Universal Access Server router shelves unless indicated otherwise.

Note The NSE-1 is keyed for insertion in only Cisco 7200 VXR series routers.

The following sections explain how to remove and install an NPE or NSE-1 in the Cisco 7200 VXR series routers:

Note When installing an NPE-175, NPE-225, NPE-300, or NSE-1 in a Cisco 7200 VXR router that is using a previously purchased I/O controller, you must upgrade the I/O controller boot helper image.

Instructions for upgrading the boot helper image on the I/O controller are contained in the Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and Input/Output Controller publication, which accompanied your new network processing engine or network services engine.

Powering Down the Router and Disconnecting Input Power

Complete the steps in the following sections to power down the router and disconnect input power.

Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power cords before servicing.

Powering Down the Router

To power down a Cisco 7200 series router or Cisco uBR7200 series router, complete the following steps:

Note Before powering down the router, use the copy running-config startup-config command to save the router's running configuration to nonvolatile memory.

Step 1 Facing the rear of the router, place the power switch on the power supply in the off (0) position. Repeat this action if a second power supply is installed in the router.

Step 2 Observe the following items:

The green OK LED on the power supply turns off.
The fans stop operating.
The LEDs on the I/O controller turn off.
The LEDs on the port adapters turn off.
On a Cisco uBR7200 series router, the LEDs on the cable modem cards turn off.

This completes the procedure for powering down a Cisco 7200 VXR series router.

Caution When the power switch on a Cisco uBR7200 series power supply is turned to the off (O) position, the power supply enters a reset cycle for 90 seconds. Wait at least 90 seconds before turning the power switch back to the on (|) position. If you do not wait the full 90 seconds, the power supply does not restart.

Disconnecting AC-Input Power

To disconnect AC-input power to a Cisco 7200 series router or Cisco uBR7200 series router, complete the following steps:

Step 1 Unplug the input power cable from the power source.

Step 2 On a Cisco 7200 series router, push up on the cable-retention clip that secures the input power cable to the router power supply. On a Cisco uBR7200 series router, push the cable-retention clip to the left.

Step 3 Unplug the other end of the input power cable from the power supply. See Figure 6-1.

Figure 6-1: Disconnecting Power from a Cisco 7200 Series AC-Input Power Supply

Figure 6-2: Disconnecting Power from a Cisco uBR7200 Series AC-Input Power Supply—Cisco uBR7246 Shown

Step 4 Repeat Step 1 through Step 3 if a second power supply is installed.

This completes the procedure for disconnecting AC-input power from a Cisco 7200 series router or Cisco uBR7200 series router.

Disconnecting DC-Input Power

To disconnect DC-input power from a Cisco 7200 series router or Cisco uBR7200 series router, complete the following steps.

Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.

Warning When you install the unit, the ground connection must always be made first and disconnected last.

Step 1 Turn off the power source and disconnect the -48V and +48V leads from the power source. You can leave the ground cable connected.

Step 2 For a Cisco 7200 series router, remove the cable tie that secures the -48V, +48V, and ground leads to the power supply faceplate. Save the cable tie.

Note The cable tie that accompanied your Cisco 7200 series DC-input power supply can be removed and replaced on the power supply without the use of a tool. If you secured the DC-input power supply leads to the power supply faceplate using a different type of cable tie, use a wire stripper to cut that cable tie from the power supply.

For a Cisco uBR7200 series router, use a 7-mm wrench or nut driver (or adjustable wrench) to loosen and remove the two M4 nuts from the strain-relief cover that secures the -48V and the +48V leads to the power supply faceplate. (See Figure 6-3.)

Figure 6-3: Removing the Strain-Relief Cover from a Cisco uBR7200 Series DC-Input Power Supply

Step 3 Using a 3/16-inch flat-blade screwdriver, loosen the screw below the +48V lead receptacle and pull the lead from the connector. (For Cisco 7200 series routers, see Figure 6-4. For Cisco uBR7200 series routers, see Figure 6-5.)

For Cisco 7200 series routers, repeat this step for the -48V lead and the ground lead.
For Cisco uBR7200 series routers, repeat this step for the -48V lead only. Using an 8-mm wrench or nut driver (or adjustable wrench), loosen and remove the two M5 nuts that secure the two-hole grounding lug to the grounding receptacle, and pull the grounding lug and lead from the receptacle.

Note The color coding of the DC-input power supply leads depends on the color coding of the DC power source at your site. Typically, green or green and yellow are used for ground, black is used for +48V (return), and red or white is used for -48V. Make certain that the lead color coding you choose for the DC-input power supply matches the lead color coding used at the DC power source.

Figure 6-4: Disconnecting Power from a Cisco 7200 Series DC-Input Power Supply

Figure 6-5: Disconnecting Power from a Cisco uBR7200 Series DC-Input Power Supply

Step 4 Repeat Step 1 through Step 3 if a second power supply is installed.

This completes the procedure for disconnecting DC-input power from a Cisco 7200 series router or Cisco uBR7200 series router.

Removing the NPE or NSE

To remove the NPE or NSE from a Cisco 7200 series routers or Cisco uBR7200 series routers, complete the following steps.

Note The weight of installed power supplies in your Cisco 7200 series router might make it difficult to remove the network processing engine. If you have difficulty, first remove the power supplies from the chassis, and then remove the network processing engine. See the "Removing and Replacing an AC-Input or DC-Input Power Supply" section for information on removing and replacing an installed power supply.

This note does not apply to the Cisco uBR7200 series routers; the network processing engine is installed above the power supplies in the Cisco uBR7200 series routers.

Step 1 Power down the router and disconnect the input power cable. (Refer to the "Powering Down the Router and Disconnecting Input Power" section.)

Step 2 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 3 Using a number 2 Phillips or a 3/16-inch flat-blade screwdriver, loosen the two captive installation screws on the faceplate of the network processing engine. (See Figure 6-6.)

If the router is not installed in a standard 19-inch, 4-post or telco-type rack, skip to Step 7. If the router is installed in a rack, determine if any permanent rack fixtures, such as a power strip, are obstructing access to the rear of the router. If a rack fixture is obstructing access to the router, proceed with Step 4.

Figure 6-6: Cisco 7200 Series NPE or NSE Captive Screws and Handle

Step 4 Using a 3/16-inch flat-blade screwdriver, loosen the screws that secure the router to the front mounting strips of the rack.

Step 5 Position at least one person in front of the rack to support the front underside of the router.

Step 6 From the rear of the rack, carefully push the front of the router out of the rack until there is enough clearance to remove the network processing engine.

Step 7 Grasp the network processing engine handle and carefully pull the network processing engine from its chassis slot.

Caution Handle the network processing engine by the carrier edges and handle only; never touch the printed circuit board components or connector pins.

Step 8 Place the NPE or NSE on an antistatic surface with its printed circuit board components facing upward, or in a static shielding bag. If you are returning the network processing engine to the factory, immediately place it in a static shielding bag.

This completes the procedure for removing an installed NPE or NSE.

Installing the NPE or NSE

To install an NPE or NSE in the router, complete the following steps.

Step 1 Ensure that the router is powered down and the input power cable is disconnected from the router and the power source. See the "Powering Down the Router and Disconnecting Input Power" section.

Step 2 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.

Step 3 Remove the new network processing engine from its static shielding bag.

Step 4 Using both hands, grasp the network processing engine by its metal carrier edges and orient the network processing engine so that its printed circuit board components are upward. (See Figure 6-7.)

Caution Handle the network processing engine by the carrier edges and handle only; never touch the printed circuit board components or connector pins.

Step 5 Align the left and right edge of the network processing engine's printed circuit board between the network processing engine slot guides.

Note For the NPE-175 and NPE-225, you need to align the left and right edge of the network processing engine's metal carrier into the guides.

Caution Do not align the network services engine's metal carrier between the slot guides (for all except the NPE-175 and NPE-225). Doing so damages components on the network processing engine's printed circuit board as you slide the network processing engine into its chassis slot.

Note The NPE-300 is only compatible with the Cisco 7200 VXR routers; the NPE-300 is keyed to prevent insertion in the Cisco 7200 series routers (7202, 7204, and 7206).

Note The NSE-1 is compatible with the Cisco 7200 VXR series routers only. It is keyed to prevent insertion in the Cisco 7200 series routers and the Cisco uBR7200 series routers.

Figure 6-7: Aligning the NPE or NSE Between the Slot Guides on a Cisco 7200 VXR Series Router

Figure 6-8: Aligning the NPE or NSE Between the Slot Guides on a Cisco uBR7200 Series—Cisco uBR7246 Shown

Step 6 Gently slide the network processing engine all the way into its chassis slot until you feel the connectors seat with the router midplane.

Step 7 Seat the network processing engine in the router midplane by tightening its captive installation screws with a number 2 Phillips or a 3/16-inch flat-blade screwdriver.

Note The network processing engine is not fully seated in the router midplane until you tighten its captive installation screws.

Step 8 If you removed power supplies from the router, replace the power supplies. (See the "Removing and Replacing an AC-Input or DC-Input Power Supply" section when replacing a power supply in a Cisco 7200 series router.)

Step 9 If you slid the front of the router out of the rack, slowly guide the router back into the rack.

Step 10 Use a 3/16-inch flat-blade screwdriver to tighten the screws that secure the router to the front mounting strips of the rack.

This completes the procedure for replacing the network processing engine in a Cisco 7200 series router or Cisco uBR7200 series router.

Reconnecting Input Power and Powering Up the Router

The following procedures explain how to reconnect input power to a Cisco 7200 VXR series router, power up the router, and verify a successful system boot.

Warning Read the installation instructions before you connect the system to its power source.

Reconnecting AC-Input Power

To reconnect AC-input power to a Cisco 7200 series router or Cisco uBR7200 series router, complete the following steps:

Step 1 At the rear of the router, check that the power switch on the power supply is in the off (O) position.

Step 2 Slide the cable-retention clip up, (Cisco 7200 series) or to the left (Cisco uBR7200 series) away from the AC receptacle, and plug in the power cable.

Step 3 Secure the cable in the power supply AC receptacle by sliding the cable-retention clip down (Cisco 7200 series) or to the right (Cisco uBR7200 series), until it snaps around the connector. The cable-retention clip provides strain relief for the AC power cable. (For the Cisco 7200 series routers, see Figure 6-9. For the Cisco uBR7200 series routers, see Figure 6-10.)

Figure 6-9: Connecting AC-Input Power to a Cisco 7200 Series Router

Figure 6-10: Connecting AC-Input Power to a Cisco uBR7200 Series Router

Step 4 Plug the AC power supply cable in to the AC power source.

Note For the Cisco 7200 series routers, each AC-input power supply operating at 120 VAC requires a minimum of 5A service.

For the Cisco uBR7200 series routers, each AC-input power supply operating at 120 VAC requires a minimum of 7A service.

We recommend powering the Cisco 7200 series routers and Cisco uBR7200 series routers from a 120 VAC, 15A receptacle U.S. (240 VAC, 10A international) at the power source.

Step 5 Repeat Step 1 through Step 4 if a second power supply is installed.

This completes the steps for reconnecting AC-input power to a Cisco 7200 series router or Cisco uBR7200 series router. Proceed to the "Powering Up the Router" section.

Reconnecting DC-Input Power

To reconnect DC-input power to a Cisco 7200 series router or Cisco uBR7200 series router, complete the following steps.

Warning When installing the unit, the ground connection must always be made first and disconnected last.

Step 1 Ensure that the -48V and +48V leads are disconnected from the power source.

Step 2 At the rear of the router, check that the power switch on the power supply is in the off (O) position. (For the Cisco 7200 series routers, see Figure 6-11. For the Cisco uBR7200 series routers, see Figure 6-12.)

Figure 6-11: Connecting DC-Input Power to a Cisco 7200 Series Router

Figure 6-12: Connecting DC-Input Power to a Cisco uBR7200 Series Universal Broadband Router

Step 3 If necessary, use a wire stripper to strip approximately 0.55 inch (14 mm) from the -48V, +48V, and ground leads. (See Figure 6-13.)

Figure 6-13: Stripping the DC-Input Lines

Note The ground lead for the Cisco uBR7200 series DC-input power supply consists of a two-hole grounding lug that connects to an M5 grounding receptacle; you do not need to strip this ground lead.

Step 4 For the Cisco 7200 series routers, insert the stripped end of the ground lead all the way into the ground lead receptacle on the DC-input power supply and tighten the receptacle screw using a 3/16-inch flat-blade screwdriver. (See Figure 6-11.)

For the Cisco uBR7200 series routers, connect the two-hole grounding lug on the grounding lead to the M5 grounding receptacles with the M5 nuts. Tighten the nuts using an 8-mm wrench or nut driver (or adjustable wrench). (See Figure 6-12.)

Step 5 Insert the stripped end of the +48V lead all the way into the +48V lead receptacle and tighten the receptacle screw using the same 3/16-inch flat-blade screwdriver. Repeat this step for the -48V lead.

Note Make sure that the entire stripped end of each lead is inserted all the way into its receptacle. If any exposed wire at the stripped end of a lead is visible after inserting the lead into its receptacle, remove the lead from the receptacle, use the wire stripper to cut the stripped end of the lead, and repeat through Step 5.

Step 6 After tightening the receptacle screw or nuts for the ground, +48V, and -48V DC-input leads, secure the leads to the power supply faceplate.

For the Cisco 7200 series, use the cable tie you saved earlier in this procedure to secure the three leads.

Note For the Cisco 7200 series routers, when securing the ground, +48V, and -48V DC-input leads to the power supply faceplate, leave a small service loop in the ground lead to ensure that it is the last lead to disconnect from the power supply if a great deal of strain is placed on all three leads. (See Figure 6-11.)

For the Cisco uBR7200 series routers, run the +48V and -48V leads between the two strain-relief studs on the power supply faceplate. (See Figure 6-14.)

Note A service loop is not required in the lead attached to the grounding lug on the Cisco uBR7200 series routers because this lead is separate from the +48V and -48V leads and is secured by two M5 nuts to the M5 receptacles.

Step 7 For the Cisco uBR7200 series routers, replace the strain-relief cover over the +48V and -48V leads and secure the cover to the strain-relief studs using the two M4 nuts with the 7-mm wrench or nut driver (or adjustable wrench). (See Figure 6-14.)

Figure 6-14: Replacing the Strain-Relief Cover on a Cisco uBR7200 Series DC-Input Power Supply

Step 8 Connect the ground, +48V, and -48V leads to the power source.

Note For the Cisco 7200 series, each DC-input power supply operating at -48 VDC in North America requires a minimum of 13A service. Each DC-input power supply operating at -60 VDC in the European Community requires a minimum of 8A service.

For the Cisco uBR7200 series routers, each DC-input power supply rating is 14A, 700 volt ampere (VA).

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a listed and certified fuse or circuit breaker, 35A minimum 60 VDC, is used on all current-carrying conductors.

Step 9 Repeat Step 1 through Step 8 if a second power supply is installed.

This completes the steps for reconnecting DC-input power to a Cisco 7200 series router or a Cisco uBR7200 series router. Proceed to the following section, "Powering Up the Router."

Powering Up the Router

To power up a Cisco 7200 series router or Cisco uBR7200 series router that has an installed power supply, complete the following steps:

Step 1 Check for the following:

Each port adapter is inserted in its slot, and its respective port adapter lever is in the locked position.
The network processing engine and the I/O controller are inserted in their respective slots, and the captive installation screws are tightened.
All network interface cables are connected to the port adapters.
Each cable modem card is inserted in its slot, and its respective captive installation screws are tightened (Cisco uBR7200 series only).
A Flash memory card or Flash Disk is installed in one of the PC Card slots.

Note The Flash Disk can be installed in either slot 0 or slot 1.

Each AC-input power cable is connected and secured with the cable-retention clip (AC-input power supplies only).
For a Cisco 7200 series router, each DC lead is connected and secured to the power supply faceplate with a cable tie; for a Cisco uBR7200 series router, each DC lead is connected with M5 nuts for the grounding receptacle and the strain-relief cover over the +48V and -48V leads (DC-input power supplies only).
Each DC lead is connected and secured to the power source (DC-input power supplies only).
Ensure that the tape (that you applied earlier) is removed from the circuit breaker switch handle, and power is restored by moving the circuit breaker handle to the on position (DC-input power supplies only).
The console terminal is turned on.

Step 2 At the rear of the router, place the power switch on the power supply in the on (|) position. Repeat this step if a second power supply is installed in the router. The green OK LED on the power supply turns on.

Step 3 Listen for the fans; you should immediately hear them operating.

Step 4 During the boot process, observe the system LEDs. The LEDs on most of the port adapters go on and off in an irregular sequence. Some may go on, go out, and go on again for a short time. On the I/O controller, the IO power OK LED goes on immediately.

Step 5 Observe the initialization process. When the system boot is complete (a few seconds), the network services engine begins to initialize the port adapters, and the I/O controller. During this initialization, the LEDs on each port adapter behave differently (most flash on and off). The enabled LED on each port adapter and Cisco uBR7200 series cable modem card goes on when initialization is completed, and the console screen displays a script and system banner similar to the following:

Cisco Internetwork Operating System Software 
IOS (tm) 7200 Software (C7200-J-M), 11.3(2)T
Copyright (c) 1986-1998 by cisco Systems, Inc.
Compiled Sun 22-Feb-98 06:00 by Biff

This completes the procedures for connecting input power and powering up the router. This also completes the procedure for installing the network services engine in a Cisco 7200 series router.

Table of Contents

Removal and Installation of an NPE or NSE