Installation guide

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Catalyst 3750 Switch Hardware Installation Guide
OL-6336-01
Chapter 2 Switch Installation
Connecting to a XENPAK Module
Step 1 Remove the rubber plugs from the XENPAK module ports and fiber-optic cable,
and store them for future use.
Step 2 Align the fiber-optic cable SC connector with the XENPAK module connector, so
that transmit (TX) on the cable meets receive (RX) on the XENPAK module
connector, and RX on the cable meets TX on the XENPAK module.
Step 3 Insert the fiber-optic cable connector into the XENPAK module ports (see
Figure 2-47).
Step 4 Insert the other cable end into a fiber-optic receptacle on a target device.
Step 5 Observe the XENPAK module 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 problem with the adapter installed in the target device.
See Chapter 3, “Troubleshooting,” for solutions to cabling problems.