1-5
Catalyst 3850 Switch Hardware Installation Guide
OL-26779-02
Chapter 1 Product Overview
Front Panel
Figure 1-2 Catalyst 3850-24P-L Switch Front Panel
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 2-19 and Appendix B, “Connector and Cable
Specifications.”
PoE, PoE+, and Cisco UPOE Ports
The PoE+ and Cisco Universal Power Over Ethernet (Cisco UPOE) ports use the same connectors as
described in the “10/100/1000 Ethernet Ports” section on page 1-5.
They provide:
• PoE+ ports: Support for IEEE 802.3af-compliant powered devices (up to 15.4 W PoE per port) and
support for IEEE 802.3at-compliant powered devices (up to 30 W PoE+ per port). The maximum
total PoE power in a 1RU switch is 1800 W.
• Cisco UPOE ports: Support for powered devices on all four Ethernet signal pairs (up to 60 W Cisco
UPOE per port).
• Support for Cisco-enhanced PoE.
• Support for prestandard Cisco powered devices.
• Configuration for StackPower. 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.
• Configurable support for Cisco intelligent power management, including enhanced power
negotiation, power reservation, and per-port power policing.
1 Mode button 4 USB mini-Type B (console) port
2 Status LEDs 5 10/100/1000 PoE+ Ethernet ports
3 USB Type A storage port 6 Network module
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Catalyst 3850 PoE+
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C3850-NM-4-1G
