Cisco Catalyst WS-C3850-24T-L Product Overview
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Cisco Catalyst WS-C3850-24T-L Product Overview

Catalyst 3850 series
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Product Overview

The Catalyst 3850 family of switches are Ethernet switches to which you can connect devices such as Cisco
IP Phones, Cisco Wireless Access Points, workstations, and other network devices such as servers, routers,
and other switches.
The Catalyst 3850 switches support stacking through Cisco StackWise-480 technology and power management
through StackPower. The StackWise technology for the Catalyst 3850 switches is called StackWise-480.
Unless otherwise noted, the term switch refers to a standalone switch and to a switch stack.
This chapter contains these topics:
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Switch Models

Table 1: Catalyst 3850 Switch Models and Descriptions
Switch Model
WS-C3850-24T-L
WS-C3850-48T-L
WS-C3850-24P-L
WS-C3850-48P-L
OL-26779-05
Switch Models, page 1
Front Panel, page 5
Rear Panel, page 23
Management Options, page 32
Supported
Description
Software
Image
LAN Base
Stackable 24 10/100/1000 Ethernet ports, 1 network module
1
slot
, 350 W power supply
LAN Base
Stackable 48 10/100/1000 Ethernet ports, 1 network module
slot, 350 W power supply
LAN Base
Stackable 24 10/100/1000 PoE+
slot, 715 W power supply
LAN Base
Stackable 48 10/100/1000 PoE+ ports, 1 network module
slot, 715 W power supply
Catalyst 3850 Switch Hardware Installation Guide
2
ports, 1 network module
1

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Summary of Contents for Cisco Catalyst WS-C3850-24T-L

  • Page 1: Product Overview

    Product Overview The Catalyst 3850 family of switches are Ethernet switches to which you can connect devices such as Cisco IP Phones, Cisco Wireless Access Points, workstations, and other network devices such as servers, routers, and other switches. The Catalyst 3850 switches support stacking through Cisco StackWise-480 technology and power management through StackPower.
  • Page 2 Stackable 24 10/100/1000 Cisco UPOE ports, 1 network module slot, 1100 W power supply WS-C3850-48U-L LAN Base Stackable 48 10/100/1000 Cisco UPOE ports, 1 network module slot, 1100 W power supply WS-C3850-12X48U-L LAN Base Stackable 12 100M/1G/2.5G/5G/10G and 36 1G UPoE ports,...
  • Page 3 Product Overview Switch Models Switch Model Supported Description Software Image WS-C3850-12XS-S IP Base Catalyst 3850 12-port SFP+ transceiver, 1 network module slot, support for up to 10 G SFP+, 350 W power supply WS-C3850-16XS-S IP Base Catalyst 3850 16-port SFP+ transceiver, 1 network module slot, support for up to 10 G SFP+, 350 W power supply.
  • Page 4 Stackable 48 10/100/1000 PoE+ ports, 1 network module slot, 1100 W power supply WS-C3850-24U-E IP Services Stackable 24 10/100/1000 Cisco UPOE ports, 1 network module slot, 1100 W power supply WS-C3850-48U-E IP Services Stackable 48 10/100/1000 Cisco UPOE ports, 1 network...

  • Page 5: Front Panel

    , on page 10 2 PoE+ = Power over Ethernet plus (provides up to 30 W per port). 3 UPOE = Universal Power Over Ethernet (provides up to 60 W Cisco UPOE per port) 4 The WS-C3850-48XS switches do not support StackWise-480...
  • Page 6 Product Overview Front Panel The Catalyst 3850 switches might have slight cosmetic differences on the bezels. Note Figure 1: WS-C3850-48P-L Switch Front Panel Mode button USB mini-Type B (console) port Status LEDs 10/100/1000 PoE+ ports USB Type A storage port Network module Figure 2: WS-C3850-24S Switch Front Panel The WS-C3850-12S switches have similar front panels.

  • Page 7: Poe, Poe+, And Cisco Upoe Ports

    (UTP) cable. The 10BASE-T traffic can use Category 3 or Category 4 UTP cable. PoE, PoE+, and Cisco UPoE Ports The PoE+ and Cisco Universal Power Over Ethernet (Cisco UPoE) ports use the same connectors as described 10/100/1000 Port Connections.

  • Page 8: Sfp And Qsfp Module Slots

    • Configurable support for Cisco intelligent power management, including enhanced power negotiation, power reservation, and per-port power policing. Depending on the installed power supply modules, each port can deliver up to 60 W of Cisco UPOE. See the Power Supply Modules, on page 26 for the power supply matrix that defines the available PoE, PoE+, and Cisco UPOE power per port.

  • Page 9: Usb Type A Port

    RJ-45 console interface speeds. If you use the USB mini-Type B console port, the Cisco Windows USB device driver must be installed on any PC connected to the console port (for operation with Microsoft Windows). Mac OS X or Linux do not require special drivers.

  • Page 10: Network Modules

    Product Overview Network Modules The port supports Cisco USB Bluetooth devices. The USB Bluetooth device acts as a Bluetooth host and serves as either a serial port or a management port connection. You can pair it with your Bluetooth smart phone, laptop, or tablet.
  • Page 11 Product Overview Network Modules Network Module Description C3850-NM-2-10G This module has four slots: Two slots (left side) support only 1 G SFP modules and two slots (right side) support either 1 G SFP or 10 G SFP modules. This is supported on the following switch Note models: •...

  • Page 12: Sfp And Sfp+ Modules

    SFP modules, and the downlink ports on the Catalyst WS-C3850-12XS and WS-C3850-24XS switch models support standard SFP+ modules. Use only Cisco SFP and SFP+ modules on the switch. For the latest information about supported SFP and SFP+ modules, refer to the Cisco Transceiver Modules Compatibility Information at http://www.cisco.com/...
  • Page 13 Product Overview LEDs This figure shows the switch LEDs and the Mode button that you use to select a port mode. Figure 6: Switch Front Panel LEDs STAT (status) USB mini-Type B console port LED DUPLX (duplex) SYST (system) SPEED ACTV (active) STACK S-PWR (StackPower)
  • Page 14 Product Overview LEDs 7 Only on switch models that support PoE. Figure 7: Switch Front Panel LEDs for the WS-C3850-12S, WS-C3850-24S, WS-C3850-12XS, and WS-C3850-24XS Switches UID (blue beacon) USB mini-Type B console port LED STAT (status) SYST (system) DUPLX (duplex) ACTV (active) SPEED STACK...

  • Page 15: Syst Led

    Product Overview LEDs 8 XPS = expandable power system. Figure 8: Switch Front Panel LEDs for the WS-C3850-48XS Switches UID (blue beacon) STACK STAT (status) USB mini-Type B console port LED DUPLX (duplex) SYST (system) SPEED ACTV (active) SYST LED Table 3: SYST LED Color System Status...

  • Page 16: Port Leds And Modes

    The power supply in a switch has failed, and the XPS is providing power to that switch (redundancy has been allocated to this device). For information about the XPS 2200, see the Cisco eXpandable Power System 2200 Hardware Installation Guide on Cisco.com: http://www.cisco.com/go/xps2200_hw...
  • Page 17 Product Overview LEDs Table 5: Port Mode LEDs Mode LED Port Mode Description STAT Port status The port status. This is the default mode. SPEED Port speed The port operating speed: 10, 100, or 1000 Mb/s. DUPLX Port duplex mode The port duplex mode: full duplex or half duplex.
  • Page 18 Product Overview LEDs Port Mode Port LED Color Meaning SPEED 10/100/1000/SFP ports Port is operating at 10 Mb/s. Green Port is operating at 100 Mb/s. Single green flash (on for Port is operating at 1000 Mb/s. 100 ms, off for 1900 ms) Blinking twice Port is operating at 2500, 5000 or 10000 Mb/s Network module slots...

  • Page 19: Usb Console Led

    Caution or powered devices are connected to a PoE+ port. Use only standard-compliant cabling to connect Cisco prestandard IP Phones and wireless access points or IEEE 802.3af-compliant devices to PoE+ ports. You must remove from the network any cable or device that causes a PoE+ fault.

  • Page 20: Stack Led

    Product Overview LEDs S-PWR LED Table 8: S-PWR LED Color Description StackPower cable is not connected, or the switch is in standalone mode. Green Each StackPower port is connected to another switch. Blinking green This appears on the switch in a StackPower ring configuration that detects an open ring or has only one StackPower cable connected.

  • Page 21: Uid/Beacon Led

    Stack member 3 LED is solid green to show that switch 3 is a stack member. PoE LED The PoE LED indicates the status of the PoE mode: either PoE, PoE+, or Cisco UPOE. Table 10: PoE LED Color Description PoE mode is not selected.

  • Page 22: Network Module Leds

    Caution Link faults occur when noncompliant cabling is connected to an SFP or SFP+ port. Use only standard-compliant cabling to connect to Cisco SFP and SFP+ ports. You must remove from the network any cable or device that causes a link fault.

  • Page 23: Rear Panel

    Product Overview Rear Panel Rear Panel The switch rear panel includes StackWise connectors, StackPower or XPS 2200 connectors, ports, fan modules, and power supply modules. Figure 11: Catalyst 3850 Switch Rear Panel Ground connector StackWise port connector CONSOLE (RJ-45 console port) StackPower connector MGMT (RJ-45 10/100/1000 management AC OK (input) status LED...

  • Page 24: Beacon Led

    Product Overview Rear Panel Figure 12: WS-C3850-12S and WS-C3850-24S Switches Switch Rear Panel Ground connector StackWise port connector CONSOLE (RJ-45 console port) StackPower connector MGMT (RJ-45 10/100/1000 management AC OK (input) status LED port) RESET button PS OK (output) status LED BEACON LED Power supply modules (AC power supply modules shown)
  • Page 25 Product Overview Rear Panel Figure 13: WS-C3850-48XS Switches Switch Rear Panel Ground connector Fan module CONSOLE (RJ-45 console port) Power supply FAIL LED BEACON LED Power supply OK LED MGMT (RJ-45 10/100/1000 management 9 Power supply modules AC OK (input) status LED port) Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...

  • Page 26: Console Port Led

    0.5-meter StackWise cable that you can use to connect the StackWise ports. For more information on StackWise cables, see Connecting to the StackWise Ports. Use only approved cables, and connect only to similar Cisco equipment. Equipment might be damaged Caution if connected to nonapproved Cisco cables or equipment. Power Supply Modules The switches are powered through one or two internal power supply modules.
  • Page 27 12-port data switch PWR-C1-350WAC — 24-port data switch 48-port data switch 24-port PoE+ switch PWR-C1-715WAC 435 W 48-port PoE+ switch 48-port full PoE+ switch PWR-C1-1100WAC 800 W 24-port Cisco UPOE switch 48-port Cisco UPOE switch Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
  • Page 28 24-port Cisco UPOE switch 220 W 660 W 48-port Cisco UPOE switch 185 W 625 W Table 15: Switch Power Supply Requirements for PoE, PoE+, and Cisco UPoE PoE Option 24-Port Switch 48-Port Switch PoE (up to 15.4 per port) (1) 715 W...

  • Page 29: Fan Module

    Product Overview Fan Module Considerations for the WS-C3850-12X48U-L, WS-C3850-12X48U-S and WS-C3850-12X48U-E switch Note models: • The primary power supply for these switch models should be a minimum of 470 W. • 350 W or 440 W can be used only as secondary power supplies. If the switch draws power from these modules as the primary source, reboot the switch to restore these modules as secondary power supplies.
  • Page 30 Product Overview Fan Module The following illustrations show the airflow patterns for the 24- and 48-port switches. The blue arrow shows cool airflow, and the red arrow shows warm airflow. Figure 14: 24- and 48-Port Switch Airflow Patterns Figure 15: Airflow Patterns for the Catalyst 3850-24S-E and 3850-12S-E Switches Figure 16: Airflow Patterns for the Catalyst 3850-48XS Switches (using Power Supplies and Fans with Blue Handles) Figure 17: Airflow Patterns for the Catalyst 3850-48XS Switches (using Power Supplies and Fans with Red Handles) Catalyst 3850 Switch Hardware Installation Guide...

  • Page 31: Stackpower Connector

    For information about installing a fan module and fan specifications, see the "Technical Specifications" chapter. StackPower Connector The switches have a StackPower connector for use with Cisco StackPower cables to configure a switch power stack that includes up to nine switches. A switch power stack can be configured in redundant or power-sharing mode.

  • Page 32: Console Port

    Management Options • Cisco Network Assistant Cisco Network Assistant is a PC-based network management GUI application for LANs. You can use the GUI to configure and manage switch clusters or standalone switches. Cisco Network Assistant is available at no cost and can be downloaded from this URL: http://www.cisco.com/pcgi-bin/tablebuild.pl/...

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