Installing the FastHub

The following sections in this chapter describe how to install the FastHub:

• Before Installing Your FastHub

• Unpacking Your FastHub

• Installing Your FastHub

• Verifying and Troubleshooting Your Installation

Before Installing Your FastHub

This section contains information that you should read before installing your FastHub.

Safety Warnings

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 unit 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 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 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: This unit should be mounted at the bottom of the rack if it is the only unit in the rack. When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.
	Warning Unplug the power cord before you work on a system that does not have an on/off switch.
	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.

Installation Requirements

When determining where to place the FastHub, ensure the following conditions are met:

• Cable distances from the FastHub to network equipment and workstations are within the limits listed in the "FastHub Ports and Cabling Information" appendix.

• Operating environment is within the ranges listed in the "Technical Specifications" appendix.

If the hub is installed in a closed or multirack assembly, the temperature might be greater than normal room temperature.

• Clearance to front and rear panels is such that:

  • Front panel indicators can be easily read.

  • Access to ports is sufficient for unrestricted cabling.

  • Rear-panel power connector is within reach of an AC power receptacle.

• Airflow around the FastHub and through the vents is unrestricted.

• Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures.

Unpacking Your FastHub

Follow these steps to unpack your hub:

Step 1 Open the shipping container and carefully remove the contents.

Step 2 Return all packing materials to the shipping container and save the container.

Step 3 Ensure that all items listed below are included in your FastHub shipment.

FastHub Package Contents

Your FastHub shipment comes with the following items:

• Four rubber feet for installing the hub on a table or shelf.

• Two mounting brackets.

• Four Phillips flat-head screws and four Phillips truss-head screws for attaching the mounting brackets to the hub.

• Four Phillips machine screws for attaching the mounting brackets to a rack.

• One cable guide and one black Phillips machine screw for attaching the cable guide to one of the mounting brackets.

• AC power cord for connecting the hub to an AC power source.

• Product documentation, including:

  • The Using the Universal Mounting Brackets quick reference card

  • This FastHub 112T and FastHub 124T Hardware Installation Guide

  • Cisco Documentation CD-ROM

  • Cisco Information Packet, containing warranty, safety, and support information

  • Cisco Product Registration Card

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Note If any of these items are damaged or missing, notify your authorized Cisco sales representative.

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Installing Your FastHub

You can install the hub in any of the following ways:

• On a table or other flat surface

• In a rack

• On a wall

Installing the Hub on a Flat Surface

To install the hub on a table or other flat surface, follow these steps:

Step 1 Locate the adhesive strip with the rubber feet that came with your hub.

Step 2 Place the hub on a level surface and attach the rubber feet to the four round recessed areas on the bottom corners of the hub.

Step 3 Place the hub on a flat surface close to an AC power outlet, and go to the "Connecting the Hub to a Power Source" section later in this chapter.

Installing the Hub in a Rack

This section describes how to install the hub in a 19- or 24-inch standard or telco rack. These are the major steps to install the hub in a rack:

1. Attaching the Brackets to the Hub
   
   
2. Attaching the Hub to the Rack
   
   
3. Attaching the Cable Guides to the Bracket
   

Attaching the Brackets to the Hub

The bracket orientation and the screws you use depend on whether you are attaching the brackets for 19-inch or 24-inch rack-mounting:

• 19-inch--Use the supplied Phillips flat-head screws to attach the long side of the bracket to the hub.

• 24-inch--Use the supplied Phillips truss-head screws to attach the short side of the brackets to the hub.

Place the hub on a level surface, and use two of the supplied Phillips screws (flat-head or truss-head) to attach a mounting bracket to each side of the hub. Secure all four screws tightly, but do not overtighten them.

Figure 2-1, Figure 2-2, and Figure 2-3 show how to attach on bracket to one side of the hub. Follow the same steps to attach the second bracket to the opposite side of the hub.

Figure 2-1: Attaching Brackets for 19- and 24-inch Rack Mounting (Front Panel Forward)

Figure 2-2: Attaching Brackets for 19- and 24-inch Rack Mounting (Rear Panel Forward)

Figure 2-3: Attaching Brackets for 19- and 24-inch Telco Rack Mounting

Attaching the Hub to the Rack

After the brackets are attached to the hub, use two of the supplied Phillips machine screws to securely attach each bracket to the rack, as shown Figure 2-4.

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Note The illustrations in this section show a Catalyst 1900; however, the process is the same for the FastHub 112T and FastHub 124T.

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Figure 2-4: Attaching the Hub to a Rack (Front Panel Forward)

Attaching the Cable Guides to the Bracket

If the hub is attached to a 19- or 24-inch rack, you can attach the cable guide to the left or right rack-mount bracket, using the supplied black screws, as shown in Figure 2-5. Attaching the cable guide is recommended to prevent the cables from obscuring the front panel of the hub and the components of other devices installed in the rack.

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Note The illustrations in this section show a Catalyst 1900; however, the process is the same for the FastHub 112T and FastHub 124T.

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Figure 2-5: Attaching a Cable Guide

After installing your hub in a rack, go to the "Connecting the Hub to a Power Source" section later in this chapter.

Attaching the Hub to a Wall

This section describes how to attach the hub in parallel and vertically to a wall. These are the major steps for attaching the hub to a wall:

1. Attaching the Brackets to the Hub
   
   
2. Attaching the Hub to a Wall
   

Attaching the Brackets to the Hub

The bracket orientation depends on whether you are attaching the brackets for parallel or vertical wall-mounting:

• Parallel--Use the supplied Phillips truss-head screws to attach the short side of the bracket to the hub.

• Vertical--Use the supplied Phillips flat-head screws to attach the long side of the bracket to the switch.

Figure 2-6 shows how to attach one bracket to one side of the hub. Follow the same steps to attach the second bracket to the opposite side of the hub.

Figure 2-6: Attaching Brackets for Wall-Mounting

Attaching the Hub to a Wall

For the best support of the hub and its 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 the screws to attach the hub to a wall.

Figure 2-7: Attaching the Hub to a Wall

After attaching the hub to a wall, go to the following"Connecting the Hub to a Power Source" section.

Connecting the Hub to a Power Source

After installing the hub either on a flat surface, in a rack, or on a wall, attach the supplied AC power cord to the hub. If you are using an RPS with your hub, see the RPS documentation.

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Note Only one power source can supply power to the hub at any time. If you are using an RPS to power the hub, the AC power cord must not be plugged into the hub. Unplugging and then plugging the power cord resets the hub.

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Connecting Hub Network Ports

You can connect the hub network ports to any 10BaseT or 100BaseTX network device, such as a server, workstation, router, switch, or another hub. These hub ports can be connected to X ports on network devices:

• FastHub 112T--Ports 1x through 12x

• FastHub 124T--Ports 1x through 24x

The hub autosenses the speed (10 Mbps or 100 Mbps) of the connected network device. You do not have to configure individual network ports for different speeds.

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Note You must provide the cables for connecting network devices to the hub.

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Before Connecting Network Ports

This section contains helpful information about connecting the hub to network devices.

• Use the following types of unshielded twisted-pair (UTP) cables when connecting the hub network ports to a network device:

  • 10BaseT network devices--Category 3, 4, or 5 UTP

  • 100BaseTX network devices--Category 5 UTP

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Note Although you can use Category 3 and 4 UTP cables for 10BaseT networks, these cable types will not work for 100BaseTX network devices. When designing a network that includes autosensing repeaters, like the FastHub 112T and FastHub 124T, keep in mind that 100BaseTX traffic cannot be sent over these cable types.

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• When connecting network devices to the hub, observe these general rules:

Use a straight-through cable to connect two ports when one of the ports is designated with an X. Use a crossover cable to connect two ports when both ports are designated with an X.

• Connecting both the uplink port (port 12 on the FastHub 112T and port 24 on the FastHub 124T) and its associated network port (port 12x on the FastHub 112T and port 24x on the FastHub 124T) will disable both ports. You can connect the uplink port or its associated network port, but not both ports at the same time.

• When a 10/100 device connected to the FastHub changes speeds (from 10 Mbps to 100 Mbps or from 100 Mbps to 10 Mbps) the device must reboot. The device then drops the link to the FastHub and recreates the link after rebooting. (If the device does not reboot after changing speeds, the FastHub does not detect the change in speed.)

If you need more information about Ethernet cabling and hub port pinouts, refer to the "FastHub Ports and Cabling Information" appendix later in this guide.

Connecting Network Ports

You must supply a straight-through 10BaseT or 100BaseTX cable to connect devices to the hub. Take these steps to connect to a network device:

Step 1 Connect one end of the cable to a network port on the hub.

Step 2 Connect the other end of the cable to the 10BaseT or 100BaseTX port of the network device.

Step 3 Check to see that the port status LED for the port that you connected in Step 1 comes on.

If the port status LED does not come on, check for the following problems:

• The network device is not turned on.

• The Ethernet adapter in the network device is not operating correctly.

• You are using the wrong type of Ethernet cable.

• The straight-through cable is damaged or not connected correctly.

If required, reconfigure and reboot the connected network device.

Step 4 Repeat steps 1 through 3 for each device that you are connecting to the hub.

Verifying and Troubleshooting Your Installation

You can use the system status, RPS, and port status LEDs to troubleshoot some problems while the hub is operating. Table 2-1 lists symptoms and possible causes associated with system problems and provides corrective actions. Use Table 2-2 to isolate faults specifically associated with the power distribution system.

Table  2-1: Problems and Recommended Responses

Symptom	Possible Cause	Corrective Action
System status LED is off.	Power cord not connected.	Plug in both ends of power cord.
Port status LED is off.	Devices not powered up. Cable connection loose. Wrong cable type. Incorrect wiring. Faulty cable.	Ensure both devices have power. Verify connection at both ends of cable. Verify cable type (crossover vs. straight-through). Refer to the "FastHub Ports and Cabling Information" appendix for pinout information. Replace cable with a known good one.
Port status LED is rapidly alternating green/amber.	Autopartition, jabber, or isolated carrier integrity error.	Verify port termination and check integrity of connected devices.
Port status LED is solid amber.	Device at other end is malfunctioning. Port is autopartitioned.	Investigate device at other end of cable attached to disabled port. After a packet is successfully sent over this port, the LED indicates a normal operating state (green).

Table  2-2: Isolating Power Distribution Problems

System Status LED	RPS LED	Meaning
Solid green	Off	Power OK (no RPS or RPS not powered up).
Solid green	Solid green	Power OK (RPS powered up and OK).
Solid green	Solid amber	RPS connected but is not operating correctly. Refer to the documentation that came with the RPS.
Solid green	Flashing green	Internal power supply and RPS are powered up. Only one power source can be supplying power to the FastHub. If you are using the RPS, the FastHub power cord must not be plugged in. If you are using the internal power supply, the RPS can be connected but must be powered down.