Cisco 3750G-12S Hardware Installation Guide - Page 81

Connecting to 1000BASE-T SFP Modules

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Chapter 2 Switch Installation Connecting to an SFP Module Connecting to 1000BASE-T SFP Modules Follow these steps to connect a Category 5 cable to a 1000BASE-T SFP module port (see Figure 2-57): Caution To prevent ESD damage, follow your normal board and component handling procedures. Step 1 When you connect the switch to servers, workstations, and routers, insert a four twisted-pair, straight-through cable in the RJ-45 connector. When you connect the switch to other switches or repeaters, insert a four twisted-pair, crossover cable. Note When you connect the switch to a 1000BASE-T device, be sure to use a four twisted-pair, Category 5 or higher cable. Figure 2-57 Connecting to an SFP Module Port 13 13X 14 15 16 17 18 19 20 21 22 23 24 23X 14X 24X Catalyst 3750 SERIES 1 2 97348 1 1 RJ-45 connector Step 2 Step 3 Step 4 Insert the other cable end in an RJ-45 connector on a target device. 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 problem with the adapter installed in the target device. See Chapter 3, "Troubleshooting," for solutions to cabling problems. If necessary, reconfigure and restart the switch or target device. OL-6336-10 Catalyst 3750 Switch Hardware Installation Guide 2-43

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2-43
Catalyst 3750 Switch Hardware Installation Guide
OL-6336-10
Chapter 2
Switch Installation
Connecting to an SFP Module
Connecting to 1000BASE-T SFP Modules
Follow these steps to connect a Category 5 cable to a 1000BASE-T SFP module port (see
Figure 2-57
):
Caution
To prevent ESD damage, follow your normal board and component handling procedures.
Step 1
When you connect the switch to servers, workstations, and routers, insert a four twisted-pair,
straight-through cable in the RJ-45 connector. When you connect the switch to other switches or
repeaters, insert a four twisted-pair, crossover cable.
Note
When you connect the switch to a 1000BASE-T device, be sure to use a four twisted-pair, Category 5 or
higher cable.
Figure 2-57
Connecting to an SFP Module Port
Step 2
Insert the other cable end in an RJ-45 connector on a target device.
Step 3
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 problem with the adapter installed in the target device. See
Chapter 3, “Troubleshooting,”
for solutions to cabling problems.
Step 4
If necessary, reconfigure and restart the switch or target device.
1
RJ-45 connector
Catalyst 3750
SERIES
13X
14X
23X
24X
13
14
15
16
17
18
19
20
21
22
23
24
1
2
97348
1