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This chapter provides installation warnings, guidelines, requirements, and package contents and the following procedures:
For Catalyst 2820 module installation procedures, refer to the Catalyst 2820 Modules User Guide and the Catalyst 2820 ATM Modules Installation and Configuration Guide.
Translated versions of the following safety warnings are provided in the "Translated Safety Warnings" appendix.
 | Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
| Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
| Warning Unplug the power cord before you work on a system that does not have an on/off switch. |
| Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. |
| Warning Read the installation instructions before you connect the system to its power source. |
| Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). |
| Warning To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 113ºF (45ºC). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings. |
| Warning
The device is designed to work with TN power systems. |
| Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
| Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. |
| Warning Care must be given to connecting units to the supply circuit so that wiring is not overloaded. |
| Warning A voltage mismatch can cause equipment damage and may pose a fire hazard. If the voltage indicated on the label is different from the power outlet voltage, do not connect the chassis to that receptacle. |
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
When determining where to place the switch, ensure the following conditions are met:
Follow these steps to unpack the switch:
Step 1 Open the shipping container and carefully remove the contents.
Step 2 Return all packing materials to the shipping container and save it.
Step 3 Ensure that all items listed in the "Package Contents" section are included in the shipment. Check each item for damage.
Each switch is shipped with the following items:
Attach the AC power cord to the switch. If your configuration has an RPS, see the RPS documentation.
The switch begins the power-on self-test (POST) after power up. POST consists of the 13 individual tests listed in Table 6-1. The port status LEDs show which test the switch is executing. As each test executes, a port status LED turns off. For example, if the LED for port 4x is off, the console port test (test 4) is being executed. The port status LED for port 16x turns off first, followed by ports 12x, 11x, and so on. The LEDs for ports 15x, 14x, 13x are not used during POST.
When POST completes, the following conditions can exist (if other devices are not connected to the switch):
You should inform your system administrator if one or more nonfatal failures are detected. Contact your Cisco sales representative if any fatal failures are detected.
The "Understanding POST Failures" section provides additional information, including the possible causes of nonfatal and fatal failures.
To install the switch on a table or shelf, follow these steps:
Step 1 Locate the adhesive strip with the rubber feet that shipped with the switch.
Step 2 Attach the rubber feet to the round recesses on the bottom corners of the switch.
Step 3 Place the switch on a table or shelf close to an AC power receptacle.
Step 4 Attach the AC power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the switch starts the series of self-tests described in the "Powering Up the Switch and Running the Power-On Self-Test" section.
This section describes how to install the switch in 19- and 24-inch standard and telco racks.
The bracket orientation and the screws you use depend on whether you plan to use a 19-inch or a 24-inch rack:
Place the switch on a level surface, and use two of the supplied Phillips flat-head or truss-head screws to attach a mounting bracket to each side of the switch.
Figure 2-1, Figure 2-2, and Figure 2-3 show how to attach one bracket to one side of the switch. Follow the same steps for the opposite side of the switch.
After the brackets are attached, use two of the Phillips machine screws to securely attach each bracket to the rack, as shown in Figure 2-4.
Attaching the cable guide and securing the cables in the cable guide prevent the cables from obscuring the switch and other devices in the rack. If the switch is in a 19- or 24-inch rack, you can attach the cable guide to the left or right rack-mount bracket with the black screws, as shown in Figure 2-5.
After the switch is in the rack, attach the AC power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the switch starts the series of self-tests described in the "Powering Up the Switch and Running the Power-On Self-Test" section.
This section describes how to attach the switch in parallel and vertically to a wall.
The bracket orientation depends on whether you plan to parallel or vertical wall-mount the switch:
Place the switch on a level surface, and use two of the Phillips truss-head screws to attach a mounting bracket to each side of the switch.
Figure 2-6 shows how to attach one bracket to one side of the switch. Follow the same steps for the opposite side of the switch.
For the best support of the switch and cables, make sure the switch is securely attached to a wall stud or to a firmly attached plywood mounting backboard, as shown in Figure 2-7. You must supply your own screws to attach the switch to a wall.
After the switch is in the rack, attach the AC power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the switch starts the series of self-tests described in the "Powering Up the Switch and Running the Power-On Self-Test" section.
To configure and monitor the switch through the menu console, use the RJ-45-to-RJ-45 rollover cable and the appropriate adapter (both supplied with the switch) to connect the RJ-45 console port to a management station or modem.
To connect to a management station or modem, follow these steps:
Step 1 Configure the management station or modem to match the following default physical characteristics of the console port:
Although the Match Baud Rate option (autobaud) matches the baud rate of an incoming call, the switch uses its configured rate when dialing out. When a call is completed and the line disconnects, the switch always returns to its configured baud rate.
You can change the console port characteristics of the switch with the Console and Upgrade Configuration Page (see the "Console and Upgrade Configuration Page" section) or the RS-232 Port Configuration Menu (see the "RS-232 Interface Configuration Menu" section). If you are using Simple Network Management Protocol (SNMP), use the RS-232 MIB objects.
Step 2 Connect one end of the supplied rollover cable to the console port, as shown in Figure 2-8.
 | Caution Do not connect an actual telephone line, a live ISDN line, or an Ethernet cable to this console port. Damage to the switch can result. Make sure you use the supplied RJ-45-to-RJ-45 rollover cable and adapters to connect the console port to the management station or modem. |
Step 3 Attach one of the following supplied adapters to a management station or modem:
Step 4 Connect the other end of the supplied rollover cable to the adapter.
Step 5 From your management station, start the terminal emulation program.
After POST completes, the Menu Console Logon Screen (shown in the "Assigning IP Information to the Switch" section) is displayed on the management station, and you can then assign IP information to the switch. If the Menu Console Logon Screen does not display, see the "Troubleshooting" chapter.
Connector and cabling specifications for the console port are in the "Connectors and Cables" appendix.
The Menu Console Logon Screen (Figure 2-9) is displayed on the management station after POST completes. From this logon screen, you display the IP Configuration Menu from which you assign IP information to the switch.
Catalyst 2820 Management Console Copyright (c) Cisco Systems, Inc. 1993-1998 All rights reserved. Standard Edition Software Ethernet address: 00-E0-1E-7E-B4-40 PCA Number: 73-2239-01 PCA Serial Number: SAD01200001 Model Number: WS-C2822-A System Serial Number: FAA01200001 --------------------------------------- User Interface Menu [M] Menus [I] IP Configuration Enter Selection:
If you want to use the web console, follow these steps to enter IP information:
Step 1 Enter the [I] option on the Menu Console Logon Screen to display the IP Configuration Menu.
Catalyst 2820 - IP Configuration Ethernet Address: 00-E0-1E-7E-B4-40 --------------------Settings------------------ [I] IP address 0.0.0.0 [S] Subnet mask 0.0.0.0 [G] Default gateway 0.0.0.0 [M] IP address of DNS server 1 0.0.0.0 [N] IP address of DNS server 2 0.0.0.0 [D] Domain name [R] Use Routing Information Protocol Enabled ----------------------- Actions ---------------------------------------- [P] Ping [X] Exit to previous menu Enter Selection:
Step 2 At the minimum, select the [I] option from the IP Configuration Menu, and enter the IP address of the switch at the prompt. If you want, you can also enter the subnet mask and default gateway from this menu. If the switch is connected to a network that has a DHCP server, the server should assign this information automatically.
Step 3 Enter the [X] option until you exit from the menu console.
For information on displaying the web console, see the "Switch Configuration Overview" chapter.
If you want to use the menu console, enter the [M] option on the Menu Console Logon Screen to display the Management Console Main Menu (Figure 2-11).
Catalyst 2820 - Main Menu [C] Console Settings [S] System [N] Network Management [P] Port Configuration [A] Port Addressing [D] Port Statistics Detail [M] Monitoring [B] Bridge Group [R] Multicast Registration [F] Firmware [I] RS-232 Interface [U] Usage Summaries [H] Help [X] Exit Management Console Enter Selection:
From this menu, you can assign IP information and continue to configure and monitor the switch from the menu console (see the "Menu-Based Management" chapter).
If you are going to manage the switch using SNMP, assign or use the default community strings on the Network Management Menu (Figure 5-6):
For information about using SNMP, see the "In-Band Management" section.
The 10BaseT ports (ports 1x through 24x) can be connected to any 10BaseT-compatible device. You must provide the Category 3, 4, or 5 UTP cable(s) to connect any of these ports to the other 10BaseT device. All UTP connections between the switch and the attached device(s) must be within 100 meters.
The 10BaseT ports are internally crossed. When connecting the switch to servers, workstations, and routers, ensure that you use a straight-through cable wired for 10BaseT. When connecting to other switches or repeaters, ensure that you use a crossover cable.
The default setting for these ports is half-duplex mode. You can configure these ports for full-duplex operation by using the web or menu console (see the "Port Management Page" section or the "Port Configuration Menu" section) or by using SNMP.
To connect a 10BaseT port on the switch to another 10BaseT device, follow these steps:
Step 1 Connect one end of the UTP cable to the 10BaseT port on the switch, as shown in Figure 2-12.
Step 2 Connect the other end of the UTP cable to the 10BaseT port of the target device.
The port status LED comes on when both the switch and the connected device are powered up. If the LED is not on, the device at the other end might not be turned on, there might be a problem with the adapter in the attached device or with the cable, or you might need to change the type of cable. See the "Troubleshooting" chapter for more information.
Step 3 Reconfigure and reboot the connected device if necessary.
Step 4 Repeat steps 1 through 3 for each device to be connected to the switch.
Connector and cabling specifications for the 10BaseT ports are in the "Connectors and Cables" appendix.
The AUI port on the switch can connect to an Ethernet transceiver, which is then connected to a 10-Mbps Ethernet device through thick coaxial, thin coaxial, fiber-optic, or UTP cable. You must provide the Ethernet transceiver and cable to connect the AUI port to the other network device. Supported network and device distances vary depending on the type of Ethernet AUI transceiver used.
To connect the AUI port on the switch to an external transceiver, follow these steps:
Step 2 Connect one end of the appropriate cable to the port on the AUI transceiver, as shown in Figure 2-13. The type of cable (thick coaxial, thin coaxial, fiber-optic, or UTP) you use depends on the AUI transceiver you are using.
Step 3 Connect the other end of the cable to the port of the target device.
Step 4 Reconfigure and reboot the connected device if necessary.
Connector and cabling specifications for the AUI port are in the "Connectors and Cables" appendix.
Shielded twisted-pair cable is the most commonly used cable in Token-Ring environments. The media interface connectors (MICs) and baluns---used to connect shielded twisted-pair and UTP cabling---create a loopback when they are disconnected; the loopback might cause anomalies with the switch.
To prevent loopback problems when using shielded twisted-pair cabling in a Token-Ring network environment, make sure the MICs and baluns are never left unconnected when they are part of a link connected to the switch (see Figure 2-14).
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