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This chapter explains how to install a Cisco 7100 series router. Before performing any of the procedures in this chapter, review "Preparing for Installation," to ensure you understand all the tools required and safety guidelines. This chapter includes the following sections:
 | Warning Read the installation instructions before you connect the system to its power source. |
The location of the chassis is extremely important for proper operation. Equipment placed too close together, inadequate ventilation, and inaccessible panels can cause malfunctions and shutdowns, and can make maintenance difficult.
Attach the rubber feet as shown in Figure 3-1. Rubber feet are included in the accessory kit that shipped with your router.
This section describes how to rack-mount the chassis in a standard four-post equipment rack. The router arrives with 19-inch rack-mount brackets and larger brackets for use with a 23- or 24-inch rack. (See Figure 3-2.)
To install the chassis in a rack, attach the brackets in one of the following ways:
After the brackets are secured to the chassis, you can rack-mount the router. Using the screws that you provide, attach the chassis to the rack as shown in Figure 3-5. You need two people to install the chassis in the rack---one person to hold the router and one person to secure it to the rack.
If you rack-mount the router with the back panel forward, you might need to attach the system ground connection before you rack-mount the router. For instructions on how to connect the system ground, see the next section, "Attaching a System Ground Connection."
To ensure the chassis grounding connection that you provide is adequate, you will need the following parts and tools:
To attach the grounding lug to the chassis grounding receptacles on the router, use the following procedure:
Step 1 Use the wire stripper to strip one end of the 6-AWG wire approximately 0.75 inch (19.05 mm).
Step 2 Insert the 6-AWG wire into the wire receptacle on the grounding lug. (See Figure 3-6.)
Step 3 Use the crimping tool to carefully crimp the wire receptacle around the wire; this step is required to ensure a proper mechanical connection.
Step 4 Insert the two screws through the holes in the grounding lug. (See Figure 3-6.) Ensure that the grounding lug does not interfere with other router hardware.
Step 5 Locate the chassis grounding receptacles on your router chassis. (See Figure 3-7.)
Step 6 Use the flat-blade screwdriver to carefully tighten the screws until the grounding lug is held firmly to the chassis. Do not overtighten the screws.
Step 7 Connect the opposite end of the grounding wire to the appropriate grounding point at your site to ensure an adequate chassis ground.
To install the cable-management bracket on the router, complete the following steps:
Step 1 Locate the chassis grounding receptacles on the rear sides of the chassis.
(See Figure 3-8.)
Step 2 Align the cable-management bracket to the vacant receptacles. Ensure the two flanges on the bracket are facing away from the chassis.
Step 3 Thread two M3.5 x 7-mm slotted hexhead screws through the bracket and into the chassis. Use a flat-head screwdriver to tighten the screws. Use tie wraps to secure interface cables to the bracket flanges.
This completes the steps for installing the cable-management bracket on a Cisco 7100 series router. Carefully lace interface cables through the cable-management bracket
as needed.
This section describes how to connect the router to your network. The cables required to connect the router to a network are not provided. For ordering information, contact customer service. (See the "Cisco Connection Online" section.) For cable product numbers and port pinouts, see "Cable Specifications."
The router has integrated LAN and WAN ports and arrives with the modular port adapter already installed, unless you order a port adapter separately as a spare. For information on installing port adapters, see the installation and configuration note that ships with the port adapter.
| Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
| Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. |
Each Fast Ethernet port has an RJ-45 connector that supports standard straight-through and crossover Category 3 or Category 5 UTP cable. Cisco Systems does not supply Category 3 or Category 5 UTP RJ-45 cables; these cables are available commercially.
Use Category 5 UTP crossover cables when connecting 100BaseTX to a hub or use Category 5 UTP straight-through cables when connecting to an end station.
To connect the Fast Ethernet port to an Ethernet hub, use the following procedure:
Step 1 Attach the appropriate cable directly to the receptacle on the router. (See Figure 3-9.)
Step 2 Attach the network end of the cable to an Ethernet hub or end station.
Each port requires a serial adapter cable, which provides the interface between the high-density serial port and the standard connectors that are commonly used for each electrical interface type.
To connect a serial cable to the network, use the following procedure:
Step 1 Attach the appropriate serial cable directly to the receptacle on the router and tighten the strain-relief screws. (See Figure 3-10.)
Step 2 Attach the network end of the serial cable to a data service unit (DSU), channel service unit (CSU), DTE, or other external synchronous serial equipment and tighten the strain-relief screws.
 | Caution
Serial interface cables must be attached correctly or damage to the cable plug will result. Attempting to force a cable plug on the 60-pin receptacle can damage the plug. (See Appendix C, "Cable Specifications," for additional information.) |
The Cisco 7100 T3 and E3 models have the following port configurations:
Each T3 or E3 serial port has two connectors (receive and transmit), where you connect the Cisco 75-ohm coaxial cable. The 75-ohm coaxial cable (Cisco product number CAB-ATM-DS3/E3) is available only from Cisco Systems; it is not available from outside commercial cable vendors.
The Cisco 75-ohm coaxial cable is available only in 10-foot (3.05-meter) lengths. The typical maximum distance between stations for T3 and E3 transmissions is 1300 feet (396 meters).
To connect the T3 or E3 port to the network, use the following procedure:
Step 1 Attach the appropriate coaxial cable directly to the receptacle on the router. (See Figure 3-11 and Figure 3-12.)
Step 2 Attach the network end of the cable to the external synchronous serial equipment.
You can test the DTE-to-DCE cable connection by using the loopback command.
The Cisco 7120 series ATM models have the following port configurations:
AT3 or AE3 ports consist of two connectors, transmit and receive. The 75-ohm coaxial cable (Cisco product number CAB-ATM-DS3/E3) is available only from Cisco Systems; it is not available from outside commercial cable vendors.
The Cisco 75-ohm coaxial cable is available only in 10-foot (3.05-meter) lengths. The typical maximum distance between stations for T3 and E3 transmissions is 1300 feet (396 meters).
To connect the ATM T3 or E3 port to the network, use the following procedure:
Step 1 Attach the appropriate coaxial cable directly to the receptacle on the router. (See Figure 3-13.)
Step 2 Attach the network end of the cable to the external synchronous
serial equipment.
For SONET/SDH multimode and SONET/SDH single-mode connections, use one duplex SC connector or two simplex SC connectors. The simplex and duplex SC connectors are shipped with removable dust covers on each connector. These cables are not available from Cisco.
| Warning Class 1 laser product. |
| Warning Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to laser radiation and do not stare into open apertures. |
To connect the ATM OC-3c/STM-1 port to the network, use the following procedure:
Step 1 Attach the appropriate fiber cable directly to the receptacle on the router. (See Figure 3-15 and Figure 3-16.)
Step 2 Attach the network end of the cable to an external DSU (an ATM network).
To connect the console port to a terminal (an ASCII terminal or a PC running terminal emulation software), use the following procedure:
Step 1 Attach the appropriate cable (RJ-45 rollover cable and an RJ-45-to-DB-25 or RJ-45-to-DB-9 adapter) directly to the receptacle on the router. (See Figure 3-17.) The adapters provided are labeled TERMINAL. Other types of adapters are not included
Step 2 Attach the other end of the cable to a terminal or PC.
You can use the auxiliary port to connect a terminal or a modem for remote access to the router.
To connect the auxiliary port to a modem, use the following procedure:
Step 1 Attach the RJ-45 rollover cable with an RJ-45-to-DB-25 adapter directly to the auxiliary receptacle on the router. (See Figure 3-18.) The adapter provided is labeled MODEM.
Step 2 Attach the other end of the cable to the modem.
| Warning The AC power supply has double pole/neutral fusing. |
Check the following conditions before you start the router:
To connect the AC power on Cisco 7120 series routers, use the following procedure:
Step 1 At the back of the router, check that the power switch is in the off (O) position.
Step 2 Connect one end of the power cord to the power connector on the back of the router. (See Figure 3-19.)
Step 3 Connect the other end of the power cord to the power outlet.
| Warning The plug-socket combination must be accessible at all times because it serves as the main disconnecting device. |
To connect the AC power on Cisco 7140 series routers (for power load-sharing and redundancy), use the following procedure to connect the second power supply.
Step 1 At the back of the router, check that the power switch is in the off (O) position.
Step 2 Slide the cable-retention clip up, away from the second AC-input receptacle, and plug in the power cable.
Step 3 Secure the cable in the power supply AC-input 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 3-20.)
Step 4 Plug the AC power supply cable for the second power supply into the AC
power source.
Posted: Fri May 26 11:33:01 PDT 2000
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