|
|
This chapter provides the following information:
Translated versions of the following safety warnings are provided in the "Translated Safety Warnings" appendix.
 | Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
| 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 113×F (45×C). 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 Ultimate disposal of this product should be handled according to all national laws and regulations. |
| 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 Only trained and qualified personnel should be allowed to install or replace this equipment. |
| 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. |
When determining where to place the switch, ensure the following conditions are met:
Each switch is shipped with the following items:
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 packing list were included in the shipment. Check each item for damage.
This section provides procedures for setting the switch on a tabletop, for installing it in a 19- or 24-inch standard or telco rack, and for attaching it to a wall.
To set the switch on a desk or table:
Step 1 Place the switch on a desk or table close to an AC power receptacle.
Step 2 Locate the adhesive strip with the rubber feet that shipped with the switch. Attach the rubber feet to the four round recessed areas on the bottom corners of the switch.
Step 3 Attach the AC power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the SYSTEM LED turns green, and the switch automatically starts a series of self-tests described in the "Verifying Your Installation Using the Power-On Self-Test" section in this chapter.
This section provides the following steps to install the switch in 19- and 24-inch standard and telco racks:
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. Secure all four screws tightly, but do not overtighten them.
The bracket orientation and the screws you use depend on whether you are attaching the brackets for 19-inch or 24-inch rack-mounting:
Figure 2-1, Figure 2-2, and Figure 2-3 show how to attach only one bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side of the switch.
After the brackets are attached to the switch, use two of the supplied Phillips machine screws to securely attach each bracket to the rack, as shown in Figure 2-4.
If the switch is attached to a 19-inch rack, you can attach the cable guide to the left or right rack-mount bracket, using the supplied black screw, as shown in Figure 2-5.
After you have installed the switch in the rack, attach the power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the SYSTEM LED turns green, and the switch automatically starts a series of self-tests described in the "Verifying Your Installation Using the Power-On Self-Test" section in this chapter.
This section provides the following steps to attach the switch parallel and vertically to a wall:
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. Secure all four screws tightly, but do not overtighten them.
The bracket orientation and the screws you use depend on whether you are attaching the brackets for parallel or vertical wall-mounting:
Figure 2-6 shows how to attach only one bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side of the switch.
For best support of the switch and cables, make sure the switch is attached securely 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 the wall.
After you have attached the switch to the wall, attach the power cord to the switch. If your configuration has an RPS, see the RPS documentation.
After power is connected, the SYSTEM LED turns green, and the switch automatically starts a series of self-tests described in the "Verifying Your Installation Using the Power-On Self-Test" section in this chapter.
After you power up the switch, the switch begins its power-on self-test (POST). POST is made up of 13 individual tests, as listed in Table 4-1. The port status LEDs indicate which POST test the switch is currently executing. For example, if the LED for port 4x is off, it means the console port test (POST test 4) is being executed.
As each POST test executes, a port status LED turns off. Therefore, on a switch with
24 10BaseT ports, the port status LED for port 16x turns off first, followed by ports 12x, 11x, 10x, and so on. The LEDs for ports 15x, 14x, 13x are not used during POST. On a switch with 12 10BaseT ports, the port status LED for port Ax (or port A) turns off first, followed by ports 12x, 11x, 10x, and so on. The port status LED for port Bx is not used during POST.
When the switch completes POST, the following conditions can exist:
You should inform your system administrator or Cisco Systems whenever the switch detects one or more nonfatal or fatal POST failures. The "Understanding POST Failures" section in the "Troubleshooting" chapter provides additional information about POST, including descriptions of the possible causes of nonfatal and fatal POST failures.
This section provides the procedures for connecting devices to the console, 10BaseT, 100BaseT, and AUI ports on the switch. This section also explains how to avoid potential problems with shielded twisted-pair (STP) cabling in Token Ring environments.
To manage the switch through the management console, you must 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 of the switch to a terminal or modem.
To connect the console port to a terminal or modem, follow these steps:
Step 1 Configure the baud rate and character format of the terminal or modem to match the following default physical characteristics of the console port:
Although the Match Baud Rate option (autobaud) matches the baud rate when the switch is answering an incoming call, the switch does not change from its configured rates when dialing out. Also, the switch only matches a rate lower than its configured rate. When a call is completed and the line disconnects, the switch always returns to its last configured baud rate.
You can change the console port characteristics of the switch by using the RS-232 Port Configuration Menu (see the "RS-232 Interface Configuration Menu" section in the "Configuration and Management" chapter). If you are using SNMP, these characteristics can be changed with the RS-232 MIB objects.
Step 2 Insert one end of the supplied rollover cable into the console port, as shown in Figure 2-8.
Step 3 Attach one of the following supplied adapters to a terminal or modem:
Step 4 Insert the other end of the supplied rollover cable into the adapter.
Step 5 From your terminal, start up the terminal emulation program or Telnet session.
The Management Console Logon Screen (see Figure 3-2) is displayed when POST completes. For details on using the management console, see the "Configuration and Management" chapter. If the Management Console Logon Screen does not display, see the "Troubleshooting" chapter for assistance.
Connector and cabling specifications for the console port are in the "Connectors and Cables" appendix.
All 10BaseT ports (ports 1x through 12x or ports 1x through 24x) on the switch can connect to any 10BaseT-compatible device. You must provide the Category 3, 4, or 5 UTP cable(s) required for connecting any of these ports to other 10BaseT devices. 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 and workstations, 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 management console (see the "Port Configuration Menu" section in the "Configuration and Management" chapter) or by using SNMP. Autonegotiation and flow control are not supported on the 10BaseT ports.
To connect a 10BaseT port on the switch to another 10BaseT device, follow these steps:
Step 1 Insert one end of the UTP cable into the 10BaseT port on the switch, as shown in Figure 2-9.
Step 2 Insert the other end of the UTP cable into 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 port status LED does not come on, the device at the other end might not be turned on, or there might be a problem with the adapter installed in the attached device or with the cable. See the "Troubleshooting" chapter for more information.
Step 3 Reconfigure and reboot the connected device as needed.
Step 4 Repeat steps 1 through 3 for each device that needs to be connected to the switch.
Connector and cabling specifications for the 10BaseT ports are in the "Connectors and Cables" appendix.
The 100BaseTX ports (ports Ax and Bx) on the switch can connect to any 100BaseTX device. You must provide the 100BaseT Category 5 UTP cable(s) required for connecting either of those ports to other 100BaseTX devices. All UTP connections between the switch and the attached device(s) must be within 100 meters.
The 100BaseTX ports are also internally crossed. When connecting the switch to servers and workstations, ensure that you use a straight-through cable. Attached servers or workstations must have a 100BaseTX-compatible adapter installed. When connecting the switch to the 100BaseTX port on another switch, hub, or router, ensure that you use a crossover cable.
The default setting for the 100BaseTX ports is autonegotiation for half- and full-duplex operation. You can also configure these ports for half-duplex operation, full-duplex operation, or full-duplex operation with flow control by using the management console (see the "Port Configuration Menu" section in the "Configuration and Management" chapter) or by using SNMP. Autonegotiation is supported on the 100BaseTX ports only, not on the 100BaseFX port. The 100BaseTX ports do not negotiate with 10-Mbps-only ports.
To connect a 100BaseTX port on the switch to another 100BaseTX device, follow these steps:
Step 1 Insert one end of the UTP cable into the 100BaseTX port on the switch, as shown in Figure 2-10.
Step 2 Insert the other end of the UTP cable into the 100BaseTX port of the target device.
The port status LED comes on when both the switch and the connected device are powered up. If the port status LED does not come on, the device at the other end might not be turned on, or there could be a problem with the adapter installed in the attached device or the cable used in the connection. See the "Troubleshooting" chapter for more information.
Step 3 Reconfigure and reboot the connected device as needed.
Step 4 Repeat steps 1 through 3 for each device to be connected.
Connector and cabling specifications for the 100BaseTX ports are in the "Connectors and Cables" appendix.
 | Caution Do not remove the rubber plugs from the fiber-optic port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the fiber-optic port and cable from contamination and ambient light. |
| Warning Class 1 laser product. |
| Warning Avoid exposure to the laser beam. |
The 100BaseFX port (port A) on the switch can connect to any 100BaseFX device. This port uses an SC connector. You must provide the 50/125- or 62.5/125-micron multimode fiber-optic cable required to connect this port to other 100BaseFX devices.
All fiber-optic connections between the switch and the attached device(s) must be within
2 kilometers. If the 100BaseFX port is configured for full-duplex operation, you can connect it to another 100BaseFX-compatible device over distances of up to 2 kilometers. If the port is configured for half-duplex operation, you can connect the port to another device that is within 412 meters of the switch.
The default setting for this port is half-duplex mode. You can also configure this port for full-duplex or full-duplex operation with flow control by using the management console (see the "Port Configuration Menu" section in the "Configuration and Management" chapter) or by using SNMP. Full- and half-duplex autonegotiation is not supported on the 100BaseFX port.
To connect the 100BaseFX port on the switch to another 100BaseFX device, follow these steps:
Step 1 Remove the rubber caps from the cable and insert one end of the fiber-optic cable into the 100BaseFX port on the switch, as shown in Figure 2-11, pushing until it snaps into place.
Step 2 Insert the other end of the fiber-optic cable into the 100BaseFX port of the target device.
The port status LED comes on when both the switch and the connected device are powered up. If the port status LED does not come on, the device at the other end might not be turned on, the transmit and receive cables could be reversed, or there is a problem with the adapter installed in the attached device. See the "Troubleshooting" chapter for more information.
Step 3 Reconfigure and reboot the connected device as needed.
Connector and cabling specifications for the 100BaseFX port are in the "Connectors and Cables" appendix.
The AUI port on the switch can connect to an external transceiver for attachment to a thick coaxial, thin coaxial, or fiber-optic cable. You must provide the Ethernet AUI cable required to connect this port to the external transceiver.
Supported network and device distances vary depending on the type of transceiver used.
To connect the AUI port on the switch to an external transceiver, follow these steps:
Step 1 Attach the appropriate external transceiver to the AUI port on the switch.
Step 2 Insert one end of the AUI cable into the AUI port on the transceiver, as shown in Figure 2-12.
Step 3 Insert the other end of the AUI cable into the AUI port of the target device.
Step 4 Reconfigure and reboot the connected device as needed.
Connector and cabling specifications for the AUI port are in the "Connectors and Cables" appendix.
Shielded twisted-pair (STP) cable is the most commonly used cable in Token Ring environments. The media interface connectors (MICs) and baluns--used to connect STP and UTP cabling--create a loopback when they are disconnected; the loopback might cause anomalies with the switch.
To prevent loopback problems when using STP 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 2-13).
|
|