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This chapter describes how to start your switch, how to interpret the power-on self-test (POST) that ensures proper operation, and how to install the switch and make connections to it.
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Note Switch requirements and procedures for initial configurations and software upgrades tend to change and therefore appear only in the release notes. Before installing, configuring, or upgrading the switch, refer to the release notes on Cisco.com for the latest information. |
Read the topics and perform the procedures in the order that they are presented:
This section covers these topics:
These warnings are translated into several languages in "Translated Safety Warnings."
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Warning This equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel. |
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Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
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Warning Read the installation instructions before connecting the system to the power source. |
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Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
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Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. |
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Warning The plug-socket combination must be accessible at all times because it serves as the main disconnecting device. |
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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. |
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Warning When installing the unit, the ground connection must always be made first and disconnected last. |
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Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. |
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
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Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
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Warning Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle. |
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Warning Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle. |
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Warning Class 1 Laser Product Warning. |
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Warning Avoid exposure to the laser beam. |
This section includes specific regulatory statements about the Catalyst 3550 family of switches.
U.S. regulatory information for this product is in the front matter of this manual.
This is a Class A Information product. When used in a residential environment, it may cause radio frequency interference. Under such circumstances, the user may be requested to take appropriate countermeasures.
This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.
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This equipment is a Class A product and should be used and installed properly according to the Hungarian EMC Class A requirements (MSZEN55022). Class A equipment is designed for typical commercial establishments for which special conditions of installation and protection distance are used.
Figyelmeztetés a felhasználói kézikönyv számára:
Ez a berendezés "A" osztályú termék, felhasználására és üzembe helyezésére a magyar EMC "A" osztályú követelményeknek (MSZ EN 55022) megfeleloen kerülhet sor, illetve ezen "A" osztályú berendezések csak megfelelo kereskedelmi forrásból származhatnak, amelyek biztosítják a megfelelo speciális üzembe helyezési körülményeket és biztonságos üzemelési távolságok alkalmazását.
When determining where to place the switch, be sure to observe these requirements:
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Note If the switch is installed in a closed or multirack assembly, the temperature around it might be greater than normal room temperature. |
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Note Carefully remove the contents from the shipping container, and check each item for damage. If any item is missing or damaged, contact your Cisco representative or reseller for support. Return all packing material to the shipping container, and save it. |
The switch is shipped with these items:
Before installing the switch in a rack, on a wall, or on a table or shelf, you should power the switch and verify that the switch passes POST. These sections describe the steps required to connect a PC to the switch console port and to power on the switch and observe POST:
To connect a PC to the console port, use the supplied RJ-45-to-DB-9 adapter cable. To connect the switch console port to a terminal, you need to provide a RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. For console port and adapter pinout information, see the "Cable and Adapter Specifications" section.
The PC or terminal must support VT100 terminal emulation. The terminal-emulation software—frequently a PC application such as Hyperterminal or Procomm Plus—makes communication between the switch and your PC or terminal possible during the setup program.
Follow these steps to connect the PC or terminal to the switch:
Step 1 Configure the baud rate and character format of the PC or terminal to match these console port default characteristics:
After you have gained access to the switch, you can change the console baud rate through the Administration > Console Baud Rate window in the Cluster Management Suite (CMS).
Step 2 Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into the console port, as shown in Figure 2-1.
Step 3 Attach the DB-9 female DTE adapter of the RJ-45-to-DB-9 adapter cable to a PC, or attach an appropriate adapter to the terminal.
Step 4 Start the terminal-emulation program if you are using a PC or terminal.
If your configuration has an RPS, connect the switch and the RPS to the same AC power source. See the "Power Connectors" section, and refer to the Cisco RPS documentation for more information. For Catalyst 3550-24-DC power connections, see "DC Power Connections."
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Note Always put the RPS in standby mode when you are connecting devices to it and in active mode during normal operation. |
To power on the switch, follow these steps:
Step 1 Make sure that you have started the terminal emulation software program (such as ProComm, HyperTerminal, tip, or minicom) from your management station. See the "Connecting a PC or Terminal to the Console Port" section for information on connecting to the switch console port.
Step 2 Connect one end of the AC power cord to the AC power connector on the switch.
Step 3 Connect the other end of the power cord to an AC power outlet.
If you are installing the Catalyst 3550-12T, 3550-12G, 3550-24, 3550-FX, and the 3550-48 switches, you can use the Cisco RPS 300.
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Warning Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the RPS receptacle |
If you are installing the Catalyst 3550-12T, 3550-12G, 3550-24, 3550-FX, 3550-24PWR, and 3550-48 switches, you can use the Cisco RPS 675.
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Warning Attach only the Cisco RPS 675 (model PWR675-AC-RPS-N1) to the RPS receptacle |
As the switch powers on, it begins POST, a series of nine tests that run automatically to ensure that the switch functions properly. The Catalyst 3550-24PWR switches run a series of ten POST tests. See "Troubleshooting," for a description of the POST tests.When the switch begins POST, the port LEDs turn green. The System LED flashes green, and the RPS LED turns off. As each test runs, the port LEDs, starting with number 1, turn off. The remaining port LEDs each turn off in sequence as the system completes a test. If a test fails, the port LED associated with the test turns amber, and the system LED turns amber. If POST fails, see "Troubleshooting," to determine a course of action.
When POST completes successfully, the port LEDs return to the status mode display, showing that the switch is operational.
Disconnect the power cord from the switch. Disconnect the cable from the switch console port. Install the switch on a rack, wall, table, or shelf as described in the "Installing the Switch" section.
This section describes these installation procedures:
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Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety: |
To install the switch in a 19-inch or 24-inch rack (24-inch racks require optional mounting hardware), follow the instructions described in these procedures:
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Note Installing the switch in a 24-inch rack requires an optional bracket kit not included with the switch. You can order a kit containing the 24-inch rack-mounting brackets and hardware from Cisco. For the Catalyst 3550-12T and 3550-12G switches, order part number RCKMNT-3550-1.5RU=. For the Catalyst 3550-24, 3550-24-DC, 3550-24-FX, 3550-24PWR, and 3550-48 switches, order part number RCKMNT-1RU=. |
The bracket orientation and the brackets you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use bracket part number 700-11523-01; for 24-inch racks, use bracket part number 700-12398-01. Figure 2-2 through Figure 2-7 show how to attach each type bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.
The bracket orientation and the brackets you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use bracket part number 700-8209-01; for 24-inch racks, use bracket part number 700-13248-01. Figure 2-8 through Figure 2-13 show how to attach each type bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.
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Note Before you attach the brackets on the Catalyst 3550-24-FX switch, remove the screws that are on the bottom-front of the chassis. Attach the bracket by using the supplied Phillips flat-head screws, as shown in Figure 2-8. |
After the brackets are attached to the switch, use the four supplied number-12 Phillips machine screws to securely attach the brackets to the rack, as shown in Figure 2-14 and Figure 2-15.
After the switch is mounted in the rack, see the "Connecting a PC or Terminal to the Console Port" section, the "Powering On the Switch and Running POST" section, and the "Connecting to the 10/100 and 10/100/1000 Ports" section to complete the installation.
We recommend attaching the cable guide to prevent the cables from obscuring the front panel of the switch and the other devices installed in the rack. Use the supplied black screw, as shown in Figure 2-16 and Figure 2-17, to attach the cable guide to the left or right bracket.
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Note The Catalyst 3550-48 switch ships with a special cable guide, as shown in Figure 2-17. This cable guide secures up to 48 cables. Use the supplied black screw to mount it on the left bracket. |
To install the switch on a wall, follow the instructions in these procedures:
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Note The illustrations in this section show the Catalyst 3550-12T switch as an example. All the Catalyst 3550 switches are wall-mounted following the same procedures. |
Figure 2-18 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.
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Note Before you attach the brackets on the Catalyst 3550-24-FX switch, remove the screws that are in the middle of the chassis. Attach the bracket by using the supplied Phillips flat-head screws, as shown in Figure 2-18. |
If you are not using an RPS with your switch, use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch, as shown in Figure 2-19 and Figure 2-20.
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Warning If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch. |
For the best support of the switch and cables, make sure the switch is attached securely to wall studs or to a firmly attached plywood mounting backboard. Mount the switch with the front panel facing up, as shown in Figure 2-21.
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Warning To comply with safety regulations, mount the switches on a wall with the front panel facing up. |
After mounting the switch on a wall, see the "Connecting a PC or Terminal to the Console Port" section, the "Powering On the Switch and Running POST" section, and the "Connecting to the 10/100 and 10/100/1000 Ports" section to complete the installation.
Follow these steps to install the switch on a table or shelf:
Step 1 Locate the adhesive strip with the rubber feet in the mounting-kit envelope. Attach the four rubber feet to the recessed areas on the bottom of the unit.
Step 2 Place the switch on the table or shelf near an AC power source.
After the switch is mounted on the table or shelf, see the "Connecting a PC or Terminal to the Console Port" section, the "Powering On the Switch and Running POST" section, and the "Connecting to the 10/100 and 10/100/1000 Ports" section to complete the installation.
Figure 2-22, Figure 2-23, and Figure 2-24 show how a GBIC module is inserted into a GBIC module slot on the switch. For detailed instructions on installing, removing, and cabling the GBICs (1000BASE-X module, 1000BASE-T module, or the GigaStack module), refer to your GBIC documentation.
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Caution To prevent electrostatic discharge (ESD) damage when installing GBICs, follow your normal board and component handling procedures. |
The switch 10/100 and 10/100/1000 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.
To maximize performance, choose one of these methods for configuring the Ethernet ports:
You can configure the 10/100 ports on the Catalyst 3550-24PWR switch to either automatically provide inline power when a Cisco IP Phone or a Cisco Aironet Access Point is connected or to never provide inline power even if an IP phone or an access point is connected. The default setting is Auto.
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Caution It takes a Catalyst 3550-24PWR 10/100 port up to 10 seconds to initially detect, power up, and link to a Cisco IP Phone. If you disconnect the Cisco IP Phone before link is established, you must wait 10 seconds before connecting another network device (other than another IP phone) to that switch port. Failure to do so can result in damage to that network device. |
Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T devices:
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Caution To prevent electrostatic discharge (ESD) damage, follow your normal board and component handling procedures. |
Step 1 When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through cable to an RJ-45 connector on the front panel. (See Figure 2-25.) When connecting to switches or repeaters, use a crossover cable. (See the "Cable and Adapter Specifications" section for cable-pinout descriptions.)
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Note When connecting to 1000BASE-T-compatible devices, be sure to use a twisted four-pair, Category 5 cable. |
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Note The Catalyst 3550-24PWR switch can connect to a Cisco IP Phone through a
straight-through, twisted four-pair Category 5 cable. The rear panel of the Cisco IP Phone might have more than one RJ-45 connector. Use the LAN-to-phone connector to connect the IP phone to the Catalyst 3550-24PWR switch. Refer to the Cisco IP Phone documentation for more information about connecting devices to it. |
Step 2 Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when both the switch and the connected device have established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device. See "Troubleshooting," for solutions to cabling problems.
Step 3 Reconfigure and reboot the connected device if necessary.
Step 4 Repeat Steps 1 through 3 to connect each device.
The 100BASE-FX ports only operate at 100 Mbps and full-duplex mode.
You can connect a 100BASE-FX port to an SC or ST port on a compatible device by using one of the MT-RJ fiber-optic patch cables listed in Table 2-1. Use the Cisco part numbers in Table 2-1 to order the patch cables that you need.
Follow these steps to connect the switch to a 100BASE-FX device:
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Caution Do not remove the rubber plugs from the fiber-optic ports 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 ports and cables from contamination and ambient light. |
Step 1 Remove the rubber plugs from the 100BASE-FX ports and the rubber caps from the MT-RJ patch cable. Store them for future use.
Step 2 Insert the cable in a 100BASE-FX port. (See Figure 2-26.)
Step 3 Insert the other cable end in an SC or ST port on the target device. The port LED turns on when both the switch and the connected device have established a link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device. See "Troubleshooting," for solutions to cabling problems.
Step 4 Reconfigure and reboot the target device if necessary.
Step 5 Repeat Steps 1 through 4 to connect each port.
These sections describe how to connect to a GBIC module port. For detailed instructions on installing, removing, and cabling a GBIC (1000BASE-X module, 1000BASE-T module, or the GigaStack module), refer to your GBIC documentation.
For instructions about how to connect to the CWDM GBIC module ports, refer to the documentation that came with that GBIC module.
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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. |
Avoid exposure to the laser beam.
Follow these steps to connect to the 1000BASE-X GBIC port:
Step 1 Remove the rubber plugs from the fiber-optic port on the module, and store them for future use.
Step 2 Insert the SC connector in the fiber-optic receptacle, as shown in Figure 2-27.
Connect the 1000BASE-T connector to the GBIC module port, as shown in Figure 2-28.
Connect the GigaStack cable connector to the GigaStack GBIC module port, as shown in Figure 2-29.
If the default configuration is satisfactory, the switch does not need further configuration. You can use any of these management options to change the default configuration:
Posted: Wed Dec 18 10:30:54 PST 2002
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