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Catalyst2940 Switch Hardware Installation Guide
OL-6157-01
Chapter2 Installation
Connecting to the 100BASE-FX Port
Step2 Insert the other cable end into an RJ-45 connector on the target device.
Step3 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 Spanning Tree Protocol (STP) discovers the network topology and searches
for loops. This process takes about 30 seconds, and then the 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 Chapter3, “Troubleshooting,” for
solutions to cabling problems.
Step4 Reconfigure and restart the target device if necessary.
Step5 Repeat Steps 1 through 4 to connect each port.
Connecting to the 100BASE-FX Port
The 100BASE-FX port on the Catalyst 2940-8TF-S operates only in full-duplex mode.
You can connect a 100BASE-FX port to an SC port on another device by using one of the MT-RJ
fiber-optic patch cables listed in Table2-1 on page2-4. Use the Cisco part numbers in Tabl e 2-1 to order
the patch cables that you need.
Caution Do not remove the dust 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.
Follow these steps to connect the switch to a 100BASE-FX device:
Step1 Remove the dust plugs from the 100BASE-FX port and the rubber caps from the MT-RJ patch cable.
Store them for future use.
Step2 Insert the cable in a 100BASE-FX port, as shown in Figure 2-10.
Figure2-10 Connecting to a 100BASE-FX Port
Step3 Insert the other cable end into an SC port on the target device.
89476
91
100Base-FX SFP
1x 2x 3x 4x 5x 6x 7x 8x
Catalyst 2940
SERIES
SYST
STAT
DPLX
SPD
MODE