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Front Panel Description
SFP Module Slots
The switch (downlink) SFP module slots on the Catalyst 3750-X-12S and Catalyst 3750-X-24S switch
support any combination of standard SFP modules. SFP+ modules are not supported.
Note
For information about about the (uplink) SFP and SFP+ module slots on the network modules, see the
"Network Modules" section on page
See
10/100/1000 Ethernet Ports
The 10/100/1000 Ethernet ports use RJ-45 connectors with Ethernet pinouts. The maximum cable length
is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5, Category 5e,
or Category 6 unshielded twisted pair (UTP) cable. The 10BASE-T traffic can use Category 3 or
Category 4 UTP cable.
For information about the 10/100/1000 Ethernet port connections and specifications, see the
"10/100/1000 Ethernet Port Connections" section on page 2-27
Specifications."
PoE+ and UPOE Ports
The PoE+ and UPOE ports use the same connectors as described in the
section on page 1-6
•
•
•
•
•
•
•
See
port.
The output of the PoE+ and UPOE circuit has been evaluated as a Limited Power Source (LPS) per IEC
Note
60950-1.
For information about power supply modules, PoE+ port connections, and PoE+ specifications, see the
"Power Supply Modules" section on page
page
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
1-6
Table 1-4
for a list of supported SFP modules.
and provide this support.
Support for prestandard Cisco powered devices
Support for IEEE 802.3af compliant powered devices (up to 15.4 W)
Support for IEEE 802.3at compliant powered devices (up to 30 W)
Support for Cisco UPOE (up to 60 W) —UPOE switches only
Support for Cisco enhanced PoE
Configuration for StackPower PoE+ and UPOE. When the switch internal power supply module(s)
cannot support the total load, StackPower configurations allow the switch to leverage power
available from other switches (only Catalyst 3750-X switches)
Configurable support for Cisco intelligent power management, including enhanced power
negotiation, power reservation, and per-port power policing
Table 1-18
for the power supply matrix that defines the available PoE, PoE+, and UPOE power per
2-27, and
Appendix B, "Connector and Cable Specifications."
1-7.
1-20, the
"PoE+ and UPOE Port Connections" section on
Chapter 1
Product Overview
and
Appendix B, "Connector and Cable
"10/100/1000 Ethernet Ports"
OL-19593-03
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