Cisco 3030 - Manual (Page 45)

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Cisco Catalyst Blade Switch 3030 Hardware Installation Guide
OL-8389-01
Chapter 2 Switch Installation
Connecting to SFP Modules
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
Chapter 3, “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.
Connecting to SFP Modules
This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic
SFP modules, see the
“Connecting to Fiber-Optic SFP Modules” section. For instructions on how to
connect to copper 1000BASE-T SFP modules, see the “Connecting to 1000BASE-T SFP Modules”
section.
For instructions about how to install or remove an SFP module, see the “Installing and Removing SFP
Modules” section on page 2-13 .
Connecting to Fiber-Optic SFP Modules
Follow these steps to connect a fiber-optic cable to an SFP module:
Caution Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Before connecting to the SFP module, be sure that you understand the port and cabling stipulations in
the
“Installation Guidelines” section on page 2-3 and in the “SFP Module Slots” section on page 1-3 .
See Appendix B, “Connector and Cable Specifications” for information about the LC on the SFP
module.
Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Step 2 Insert one end of the fiber-optic cable into the SFP module port (see Figure 2-10 ).
Step 3 Insert the other cable end into a fiber-optic receptacle on a target device.
Step 4 Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while the STP discovers the network topology and searches for loops. This process
takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might
be a problem with the adapter installed in the target device. See
Chapter 3, “Troubleshooting,” for
solutions to cabling problems.