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This chapter explains how to install a Cisco 7200 VXR router. The chapter contains the following sections:
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Note For installation and startup procedures for a Cisco 7206VXR as a router shelf in a Cisco AS5800 Universal Access Server, refer to the Cisco AS5800 Universal Access Server publications that shipped with your access server. |
A rack-mount and cable-management kit is included in the shipping container. The rack-mount brackets in the kit are for mounting a Cisco 7200 VXR router in standard, 19-inch-wide, 4-post equipment racks or telco-type equipment racks. The rack-mount brackets are not suitable for use with other racks, such as 23-inch telco racks. The cable-management brackets are designed to relieve the strain on port adapter interface cables that are installed on port adapters in a Cisco 7200 VXR router.
If you are installing an equipment shelf or using mounting hardware other than that supplied with the chassis, review the guidelines in the "Rack-Mounting Guidelines" section in the chapter "Preparing for Installation," and then proceed to the "General Tabletop or Workbench Installation" section.
If you do not plan to install your Cisco 7200 VXR router in an equipment rack, proceed to the "General Tabletop or Workbench Installation" section.
The chassis mounts to two rack posts with brackets that attach to either the front or the rear sides of the chassis. The inside width between the two posts or mounting strips (left and right) must be at least 17.00 inches (43.18 cm).
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Note Rack-mounting procedures for the Cisco 7204VXR and the Cisco 7206VXR are identical. Therefore, the illustrations in this section apply to both Cisco 7200 VXR routers. |
Some equipment racks provide a power strip along the length of one of the mounting strips. Figure 3-1 shows a typical 4-post equipment rack with a power strip along one of the back posts. If your rack has this feature, consider the position of the strip when planning fastener points to ensure that you will be able to pull port adapters and other FRUs straight out of their respective slots.
The inlet and exhaust ports for cooling air are located on the right and left of the chassis, respectively, so multiple routers can be stacked in a rack with little or no vertical clearance.
If you want the port adapter end (the front) of the chassis recessed in the rack, install the rack-mount brackets at the front or rear of the chassis in the orientation shown in Figure 3-2. If you want the front of the chassis protruding from the rack, install the rack-mount brackets at the front or rear of the chassis in the orientation shown in Figure 3-3.
If you plan to install the cable-management brackets on a Cisco 7200 VXR router that you are rack-mounting, you must install the cable-management brackets and the rack-mount brackets on the chassis before you install the chassis in the rack.
There are two cable-management bracket configurations when you rack-mount a Cisco 7200 VXR router from the front. In the first configuration, the cable-management brackets are installed over the rack-mount brackets, and four screws secure both sets of brackets to the chassis. (See Figure 3-4.) In the second configuration, two screws secure each rack-mount bracket to the chassis, and two additional screws secure each cable-management bracket to a rack-mount bracket. (See Figure 3-5.)
If you are rack-mounting a Cisco 7200 VXR router from the rear, the rack-mount brackets are installed at the rear of the chassis, and the cable-management brackets are installed at the front of the chassis. You must install both sets of brackets before you install the chassis in the rack.
This section explains how to install the rack-mount and cable-management brackets at the front and the rear of a Cisco 7200 VXR router. Before installing the chassis in the rack, you must install a rack-mount bracket on each side of the front or rear of the chassis. If you are rack-mounting the chassis from the front and you plan to use the cable-management brackets, you must install the cable-management brackets when you install the rack-mount brackets on the chassis.
If you are rack-mounting the chassis from the rear, you may install the rack-mount and cable-management brackets separately; however, both sets of brackets must be installed on the chassis before the chassis is installed in the rack.
The parts and tools required for installing the rack-mount and cable-management brackets are listed in the section "Tools and Parts Required" in the chapter "Preparing for Installation" earlier in this guide.
To install the rack-mount and cable-management brackets on a Cisco 7200 VXR router for a front rack-mount configuration, complete the following steps:
Step 2 If you want the front of the chassis protruding from the rack, align the first rack-mount bracket and the first cable-management bracket to the threaded holes in the right side of the chassis as shown in Figure 3-6.
Thread two M4 x 8-mm Phillips flathead screws through both brackets and into the side of the chassis. Use a number 2 Phillips screwdriver to tighten the screws. (See Figure 3-6.)
Step 3 If you want the front of the chassis recessed in the rack, align the first rack-mount bracket to the threaded holes in the right side of the chassis as shown in Figure 3-7.
Thread two M4 x 8-mm Phillips flathead screws through the bracket into the side of the chassis and use a number 2 Phillips screwdriver to tighten the screws. Then align the first cable-management bracket to the rack-mount bracket and thread two M4 x 8-mm Phillips flathead screws through the two brackets. Use a number 2 Phillips screwdriver to tighten the screws. (See Figure 3-7.)
Step 4 Repeat Step 1 through Step 3 for the other rack-mount bracket and cable-management bracket (if required).
This completes the procedure for installing the rack-mount and cable-management brackets on a Cisco 7200 VXR router for a front rack-mount configuration.
To install the rack-mount and cable-management brackets on a Cisco 7200 VXR router for a rear rack-mount configuration, complete the following steps:
Step 2 Align the first rack-mount bracket to the threaded holes in the right side of the chassis.
If you want the front of the chassis protruding from the rack, align the rack-mount bracket to the chassis as shown in Figure 3-8. If you want the front of the chassis recessed in the rack, align the rack-mount bracket to the chassis as shown in Figure 3-9.
Step 3 Thread two M4 x 8-mm Phillips flathead screws through the rack-mount bracket and into the side of the chassis. Use a number 2 Phillips screwdriver to tighten the screws.
Step 4 Repeat Step 1 through Step 3 for the other rack-mount bracket.
Step 5 If you plan to include the cable-management brackets in your rear rack-mount configuration, align the first cable-management bracket to the threaded holes in the front sides of the chassis. (See Figure 3-8 and Figure 3-9.)
Step 6 Thread two M4 x 8-mm Phillips flathead screws through the bracket and into the chassis. Use a number 2 Phillips screwdriver to tighten the screws.
Step 7 Repeat Step 5 and Step 6 for the other cable-management brackets.
This completes the procedure for installing the rack-mount brackets and cable-management brackets on a Cisco 7200 VXR router. Proceed to the following section, "Installing the Chassis in the Rack."
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Caution To prevent injury, review the safety precautions in the chapter "Preparing for Installation" before installing the router in a rack. |
After installing the brackets on the chassis, you mount the router by securing the rack-mount brackets to two posts or mounting strips in the rack using the six slotted screws provided. Because the brackets support the weight of the entire chassis, be sure to use all six slotted screws to fasten the two rack-mount brackets to the rack posts. Figure 3-2, Figure 3-3, Figure 3-4, and Figure 3-5 show typical installations in 19-inch 4-post and telco-type equipment racks.
We recommend that you allow at least 1 or 2 inches (2.54 or 5.08 cm) of vertical clearance between the router and any equipment directly above and below it.
To install the chassis in the rack, complete the following steps:
Step 2 Make sure that your path to the rack is unobstructed. If the rack is on wheels, ensure that the brakes are engaged or that the rack is otherwise stabilized.
Step 3 Position the chassis so that the front end is closest to you. Lift the chassis and move it to the rack. To prevent injury, avoid sudden twists or moves.
Step 4 Slide the chassis into the rack, pushing it back until the brackets (installed at the front or rear of the chassis) meet the mounting strips or posts on both sides of the equipment rack.
Step 5 While keeping the brackets flush against the posts or mounting strips, position the router so the holes in the brackets are aligned with those in the mounting strips.
Step 6 Insert all six 10-32 x 3/8 slotted screws (three on each side) through the brackets and into the mounting strip (use the top and bottom bracket holes, as shown in Figure 3-2, Figure 3-3, Figure 3-4, and Figure 3-5). Using a 1/4-inch flat-blade screwdriver, tighten all the screws.
This completes the procedure for installing the chassis in the rack. Proceed to the "Connecting Port Adapter Cables" section to continue the installation.
The router should already be in the area where you will install it, and your installation location should already be determined. If not, see the section ""Site Requirement Guidelines" section" in the chapter "Preparing for Installation," and the Site Preparation and Safety Guide.
When installing a Cisco 7200 VXR router on a workbench or tabletop, ensure that the surface is clean and in a safe location and that you have considered the following:
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Note We strongly recommend that you provide a chassis ground connection. See ""Attaching a System Ground Connection" section" for instructions. |
Following are the steps for installing a Cisco 7200 VXR router on a workbench or tabletop:
Step 2 On the chassis, ensure that all captive screws on the network processing engine or network services engine, the I/O controller, and each power supply are tightened and the port adapter levers are in the locked position.
Step 3 Lift the chassis by placing your hands around the chassis sides and lifting the chassis from underneath (see Figure 3-10). To prevent injury, avoid sudden twists or moves.
Step 4 Place the router on the tabletop or workbench.
Step 5 Ensure that there is at least 3 inches (7.62 cm) of clearance at the inlet and exhaust vents of the router and no exhaust air from other equipment will be drawn into the chassis. Also, ensure that there is approximately 19 inches of clearance at the front and rear of the chassis.
This completes the general tabletop or workbench installation.
To install the cable-management brackets on a Cisco 7200 VXR router, complete the following steps:
Step 2 Align the first cable-management bracket to the threaded holes in the right side of the chassis. (See Figure 3-5.)
Step 3 Thread two M4 x 8-mm Phillips flathead screws through the bracket and into the chassis. Use a number 2 Phillips screwdriver to tighten the screws.
Step 4 Repeat Step 1 through Step 3 to install the other cable-management bracket on the left side of the chassis.
This completes the steps for installing the cable-management brackets on a Cisco 7200 VXR router.
To secure port adapter interface cables to the cable-management brackets, complete the following steps:
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Note The eight removable tie wraps installed on the cable-management brackets secure port adapter interface cables to the brackets. We recommend that you use the tie wraps that shipped with the cable-management brackets.You can use standard tie wraps; however, you will have to cut and replace them with new tie wraps when you want to release or secure an interface cable to a bracket. |
Step 2 Carefully lace the interface cables from a port adapter installed in the chassis between the two ends of the unlocked tie wrap.
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Note Be sure to leave a small service loop in the interface cable before securing it to the cable-management bracket. |
Step 3 With the interface cables between the ends of the tie wrap and the interface cables service loop in place, tighten the cable tie down around the interface cables until they are secured against the cable-management bracket. (See Figure 3-11.)
Step 4 Repeat Step 1 through Step 3 for any other port adapter interface cables installed in the router.
This completes the procedure for securing port adapter interface cables to the cable-management brackets. Proceed to the following section "Attaching a System Ground Connection" to continue the installation.
Before you connect power or turn on power to your router, we strongly recommend that you provide an adequate chassis ground (earth) connection for the router chassis. Chassis grounding receptacles are provided on each Cisco 7200 VXR router chassis. (See Figure 1-4.)
To ensure the chassis grounding connection that you provide is adequate, you will need the following parts and tools:
Use the following procedure to attach the grounding lug to the chassis grounding receptacles on your router chassis:
Step 2 Insert the two screws through the holes in the grounding lug. (See Figure 3-12.) Ensure that the grounding lug does not interfere with other router hardware, such as power supplies or the network processing engine or network services engine.
Step 3 Use the Phillips screwdriver to carefully tighten the screws until the grounding lug is held firmly to the chassis. Do not overtighten the screws.
Step 4 Use the wire stripper to strip one end of the 6-AWG wire approximately 0.75 inches (19.05 mm).
Step 5 Insert the 6-AWG wire into the wire receptacle on the grounding lug.
(See Figure 3-12.)
Step 6 Use the crimping tool to carefully crimp the wire receptacle around the wire; this step is required to ensure a proper mechanical connection.
Step 7 Connect the opposite end of the grounding wire to the appropriate grounding point at your site to ensure an adequate chassis ground.
This completes the procedure for providing a chassis ground connection.
The instructions for connecting the cables for each port adapter installed in the Cisco 7200 VXR routers are contained in the respective configuration note for each port adapter. For example, if you are connecting the cables for a 4-port, Ethernet port adapter, refer to the configuration note PA-4E Ethernet 10BASE-T Port Adapter Installation and Configuration. This configuration note accompanies every PA-4E port adapter that is shipped from the factory as an installed item in a Cisco 7200 VXR router or as a FRU. The document is also available on the Documentation CD-ROM and on CCO.
Instructions for securing port adapter interface cables to the cable-management brackets are contained in the "General Tabletop or Workbench Installation" section.
The console and auxiliary ports for Cisco 7200 VXR routers are located on the I/O controller. (See Figure 3-13.) The I/O controller also has an optional Fast Ethernet port. This section contains connection equipment and pinout information for the console, auxiliary, and Fast Ethernet ports on the I/O controller.
The I/O controller has two EIA/TIA-232 ports: a DCE-mode console port and a DTE-mode auxiliary port. (See Figure 3-14.) The console port is a DCE DB-25 receptacle for connecting a data terminal, which you will use to configure the interfaces and bring up the router. The auxiliary port is a DTE DB-25 plug for connecting a modem or other DCE device (such as a CSU/DSU or other router) to a Cisco 7200 VXR router.
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Note Both the console and auxiliary ports are asynchronous serial ports; any devices connected to these ports must be capable of asynchronous transmission. (Asynchronous is the most common type of serial device; for example, most modems are asynchronous devices. |
Before connecting a terminal to the console port, configure the terminal to match the router console port as follows: 9600 baud, 8 data bits, no parity, 2 stop bits (9600 8N2). You need an EIA/TIA-232 DCE console cable to connect the terminal to the console port. After you establish normal router operation, you can disconnect the terminal.
You must supply your own interface cable between the auxiliary port and the equipment you are connecting. For console and auxiliary port pinouts, see the sections "Console Port Signals" and "Auxiliary Port Signals."
The console port does not support modem control or hardware flow control. Both Data Set Ready (DSR) and Data Carrier Detect (DCD) signals are active when the system is running. The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) input. The console port requires a straight-through EIA/TIA-232 cable. Table 3-1 lists the signals used on the console port.
| Pin | Signal | Direction | Description |
|---|---|---|---|
1 | GND | --- | Ground |
2 | TxD | <--- | Transmit data |
3 | RxD | ---> | Receivedata |
6 | DSR | ---> | Data set ready (always on) |
7 | GND | --- | Ground |
8 | DCD | ---> | Data Carrier Detect (always on) |
Table 3-2 lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control and modem control.
| Pin | Signal | Direction | Description |
|---|---|---|---|
2 | TxD | ---> | Transmit data |
3 | RxD | <--- | Receive data |
4 | RTS | ---> | Request To Send (used for hardware flow control) |
5 | CTS | <--- | Clear To Send (used for hardware flow control) |
6 | DSR | <--- | Data set ready |
7 | Signal Ground | --- | Signal ground |
8 | CD | <--- | Carrier Detect (used for modem control) |
20 | DTR | ---> | Data terminal ready (used for modem control only) |
The I/O controller is available with or without a Fast Ethernet port. The I/O controller with a Fast Ethernet port is equipped with either a single MII receptacle or an MII receptacle and an RJ-45 receptacle (only one receptacle can be used at a time). Although still supported by Cisco Systems, the I/O controller equipped with the single MII receptacle is no longer an orderable product as of May 1998. The following sections explain Fast Ethernet MII and RJ-45 connection equipment.
The MII receptacle on the I/O controller is a 40-pin, D-shell type connector that is configurable for 100 megabits per second (Mbps) full-duplex or half-duplex operation (half-duplex is the default). The MII receptacle supports IEEE 802.3u interfaces compliant with the 100BaseX and 100BaseT standards. The MII connection requires an external transceiver that permits connection to multimode fiber for 100BaseFX or 100BaseT4 physical media. (See Figure 3-15.)
Depending on the type of media you use between the MII connection and your switch or hub, the network side of your 100BaseT transceiver should be appropriately equipped with ST-type connectors (for optical fiber), BNC connectors, and so forth.
Figure 3-16 shows the pin orientation of the MII receptacle on the I/O controller.
The MII receptacle uses two 2-56 jackscrews to secure the cable or transceiver to the MII port. MII cables and transceivers have knurled thumbscrews that you fasten to the jackscrews on the MII connector and tighten with your fingers. Use the jackscrews to secure your MII cable to the MII receptacle.
Table 3-3 lists the pinouts and signals for the I/O controller MII receptacle.
| Pin1 | In | Out | I/O | Description |
|---|---|---|---|---|
14-17 | --- | Yes | --- | Transmit data (TxD) |
12 | Yes | --- | --- | Transmit clock (Tx_CLK)2 |
11 | --- | Yes | --- | Transmit error (Tx_ER) |
13 | --- | Yes | --- | Transmit enable (Tx_EN) |
3 | --- | Yes | --- | MII data clock (MDC) |
4-7 | Yes | --- | --- | Receive data (RxD) |
9 | Yes | --- | --- | Receive clock (Rx_CLK) |
10 | Yes | --- | --- | Receive error (Rx_ER) |
8 | Yes | --- | --- | Receive data valid (Rx_DV) |
18 | Yes | --- | --- | Collision (COL) |
19 | Yes | --- | --- | Carrier sense (CRS) |
2 | --- | --- | Yes | MII Data Input/Output (MDIO) |
22-39 | --- | --- | --- | Common (ground) |
1, 20, 21, 40 | --- | --- | --- | +5.0 volts (V) |
| 1Any pins not indicated are not used. 2Tx_CLK and Rx_CLK are provided by the external transceiver. |
The RJ-45 receptacle on the I/O controller is configurable for 100 Mbps full-duplex or half-duplex operation (half-duplex is the default) and supports IEEE 802.3, Ethernet, and IEEE 802.3u interfaces compliant with 10BaseT and 100BaseTX specifications.
The RJ-45 receptacle supports standard straight-through and crossover Category 5 UTP cables. (See Figure 3-15.) Cisco Systems does not supply Category 5 UTP cables; these cables are available commercially.
Figure 3-17 shows the RJ-45 connector. Table 3-4 lists the pinouts and signals for the RJ-45 receptacle.
| Pin | Description |
|---|---|
1 | Receive data + (RxD+) |
2 | RxD- |
3 | Transmit data + (TxD+) |
6 | TxD- |
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Note With regard to the RJ-45 pinout in Table 3-4, you need to use proper common-mode line terminations for the unused Category 5 UTP cable pairs 4/5 and 7/8. Common-mode termination reduces electromagnetic interference (EMI). |
Depending on your I/O controller RJ-45 interface cabling requirements, use the pinouts shown in Figure 3-18 and Figure 3-19 for straight-through and crossover twisted-pair cable connections, respectively.
To identify the RJ-45 cable type, hold the two ends of the cable next to each other so you can see the colored wires inside the ends, as shown in Figure 3-20.
Examine the sequence of colored wires to determine the type of RJ-45 cable as follows:
This section provides the procedures for connecting AC-input and DC-input power to your Cisco 7200 VXR router.
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Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit. |
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Note Detailed instructions for handling and replacing the Cisco 7200 VXR power supplies are contained in the 280-Watt AC-Input Power Supply Replacement Instructions and 280-Watt DC-Input Power Supply Replacement Instructions documents that accompany each power supply that is shipped from the factory as a FRU. These documents are also available on the Documentation CD-ROM and on CCO. |
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Warning The AC power supply has double pole/neutral fusing. |
Connect a 280W AC-input power supply as follows:
Step 2 Slide the cable-retention clip up, 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 until it fits around the connector. The cable-retention clip provides strain relief for the AC power cable. (See Figure 3-21.)
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Note For additional AC power cable strain relief, secure the cable to the power supply handle by inserting a nylon cable tie through the hole in the handle and around the cable. |
Step 4 Plug the AC power supply cable into the AC power source.
Step 5 Repeat Step 1 through Step 4 for the second power supply (if present).
This completes the procedure for connecting AC-input power.
Connect a 280W DC-input power supply as follows:
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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/yellow is used for ground, black is used for +48V (return), and red or white is used for -48V. Make certain the lead color coding you choose for the DC-input power supply matches the lead color coding used at the DC power source. |
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Warning When you install the unit, the ground connection must always be made first and disconnected last. |
Step 2 Ensure that the -48V and +48V leads are disconnected from the power source.
Step 3 Using a wire stripper, strip approximately 0.55 inch (14 mm) from the -48V, +48V, and ground leads. (See Figure 3-22.)
Step 4 Insert the stripped end of the ground lead all the way into the ground lead receptacle on the DC-input power supply (see Figure 3-23), and tighten the receptacle screw using a 3/16-inch flat-blade screwdriver.
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.
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Note Make sure 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 Step 3 through Step 5. |
Step 6 After tightening the receptacle screw for the ground, +48V, and -48V DC-input leads, use a cable tie (see Figure 3-23) to secure the three leads to the power supply faceplate.
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Note 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 the ground lead is the last lead to disconnect from the power supply if a great deal of strain is placed on all three leads (see Figure 3-23). |
Step 7 Connect the ground, +48V, and -48V leads to the power source.
This completes the procedure for connecting DC-input power. Your installation is complete. Proceed to ""Observing System Startup and Performing a Basic Configuration" to start the router and to perform a basic configuration.
Posted: Thu Mar 30 13:27:10 PST 2000
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