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Considerations for the WS-C3850-12X48U-L, WS-C3850-12X48U-S and WS-C3850-12X48U-E switch
models:

Note

•

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.

The power supply modules have two status LEDs.

Table 16: Switch Power Supply Module LEDs

Description

PS OK

Description

AC OK
DC OK

Output is disabled, or input is outside
operating range (AC LED is off).

Output is disabled, or input is outside
operating range (DC LED is off).

Off

No AC input power.

No DC input power.

Off

Power output to switch active.

Green

AC input power present.

DC input power present.

Green

Output has failed.

Red

For information about replacing a power supply module, wiring a DC power supply module, and module
specifications, see the "Power Supply Installation" and "Technical Specifications" chapters.

Fan Module

Depending on the switch model, three or five internal hot-swappable 12-V fan modules (FAN-T1=) are
available. The air circulation system consists of the fan modules and the power supply modules. The airflow
patterns vary depending on the power supply configuration.

When the fan modules are operating properly, a green LED is on at the top left corner of the fan assembly
(viewed from the rear). If the fan fails, the LED turns to amber. The switch can operate with two operational
fans, but the failed fan should be replaced as soon as possible to avoid a service interruption due to a second
fan fault.

The WS-C3850 switches require three fans for proper cooling. The WS-C3850-48XS switches require
five fans for proper cooling.

Note

Catalyst 3850 Switch Hardware Installation Guide

OL-26779-05

29

Product Overview

Fan Module

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Содержание Catalyst WS-C3850-24P-L

Страница 1: ...switch stack This chapter contains these topics Switch Models page 1 Front Panel page 5 Rear Panel page 23 Management Options page 32 Switch Models Table 1 Catalyst 3850 Switch Models and Descriptions Description Supported Software Image Switch Model Stackable 24 10 100 1000 Ethernet ports 1 network module slot1 350 W power supply LAN Base WS C3850 24T L Stackable 48 10 100 1000 Ethernet ports 1 n...

Страница 2: ...P Base WS C3850 48T S Stackable 24 10 100 1000 PoE ports 1 network module slot 715 W power supply IP Base WS C3850 24P S Stackable 48 10 100 1000 PoE ports 1 network module slot 715 W power supply IP Base WS C3850 48P S Stackable 48 10 100 1000 PoE ports 1 network module slot 1100 W power supply IP Base WS C3850 48F S Stackable 24 10 100 1000 Cisco UPOE ports 1 network module slot 1100 W power sup...

Страница 3: ...e airflow direction for this switch is from the front panel to the rear panel IP Base WS C3850 48XS S Catalyst 3850 switch with SFP transceivers 48 ports that support up to 10 G and 4 QSFP ports that support up to 40 G 750 W power supply The airflow direction for this switch is from the rear panel to the front panel IP Base WS C3850 48XS F S Stackable 12 100M 1G 2 5G 5G 10G and 36 1 G UPoE ports 1...

Страница 4: ...le slot support for up to 10 G SFP 350 W power supply IP Services WS C3850 12XS E Catalyst 3850 16 port SFP transceiver 1 network module slot support for up to 10 G SFP 350 W power supply 16 ports are available when the C3850 NM 4 10G network module is plugged into the WS C3850 12XS E switch IP Services WS C3850 16XS E Catalyst 3850 24 port SFP transceiver 1 network module slot support for up to 1...

Страница 5: ...For supported network modules see Network Modules 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 Front Panel This section describes the front panel components 24 or 48 downlink ports of one of these types 10 100 1000 10 100 1000 PoE 10 100 1...

Страница 6: ...de button 1 10 100 1000 PoE ports 5 Status LEDs 2 Network module 6 USB Type A storage port 3 Figure 2 WS C3850 24S Switch Front Panel The WS C3850 12S switches have similar front panels Note USB Type A storage port 5 UID button 1 SFP module slots downlink 6 Mode button 2 Catalyst 3850 Switch Hardware Installation Guide 6 OL 26779 05 Product Overview Front Panel ...

Страница 7: ... traffic requires Category 5 or Category 5e twisted pair 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 in 10 100 1000 Port Connections They provide PoE ports Support for IEEE 802 3af compliant powered devices up to 15 4 W PoE per port and su...

Страница 8: ...ownlink ports for the Catalyst WS C3850 switch models are as follows The downlink ports on the Catalyst WS C3850 12S and WS C3850 24S switch models support standard SFP modules The downlink ports on the Catalyst WS C3850 12XS and WS C3850 24XS switch models support standard SFP modules The 10G downlink ports on the Catalyst WS C3850 48XS S WS C3850 48XS F S WS C3850 48XS E and WS C3850 48XS F E sw...

Страница 9: ...terface CLI to configure an inactivity timeout which reactivates the RJ 45 console if the USB console has been activated and no input activity has occurred on the USB console for a specified time After the USB console deactivates due to inactivity you cannot use the CLI to reactivate it Disconnect and reconnect the USB cable to reactivate the USB console For information on using the CLI to configu...

Страница 10: ...vides uplink ports to connect to other devices The switch should only be operated with either a network module or a blank module installed The switch generates logs when you insert or remove a network module with SFP ports Table 2 Network Modules Description Network Module 5 This module has four 1 G SFP module slots Any combination of standard SFP modules are supported SFP modules are not supporte...

Страница 11: ...lowing switch models Note WS C3850 48T F P U WS C3850 12X48U WS C3850 24XU WS C3850 12XS WS C3850 24XS C3850 NM 4 10G This module has eight 10 G slots with an SFP port in each slot Each port supports a 1 G or 10 G connection This is supported on the following switch models Note WS C3850 12X48U WS C3850 24XU WS C3850 24XS C3850 NM 8 10G This module has two 40 G slots with a QSFP connector in each s...

Страница 12: ...and WS C3850 24XS switch models support standard SFP modules Note 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 en US products hw modules ps5455 products_device_support_tables_list html For information about SFP modules see the documentation at In...

Страница 13: ...igure 6 Switch Front Panel LEDs USB mini Type B console port LED 6 STAT status 1 SYST system 7 DUPLX duplex 2 ACTV active 8 SPEED 3 XPS 6 9 STACK 4 S PWR StackPower 10 PoE 7 5 6 XPS expandable power system Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 13 Product Overview LEDs ...

Страница 14: ...S WS C3850 24S WS C3850 12XS and WS C3850 24XS Switches USB mini Type B console port LED 6 UID blue beacon 1 SYST system 7 STAT status 2 ACTV active 8 DUPLX duplex 3 XPS 8 9 SPEED 4 S PWR StackPower 10 STACK 5 Catalyst 3850 Switch Hardware Installation Guide 14 OL 26779 05 Product Overview LEDs ...

Страница 15: ...STAT status 2 SYST system 7 DUPLX duplex 3 ACTV active 8 SPEED 4 SYST LED Table 3 SYST LED System Status Color System is not powered on Off System is operating normally Green POST in progress Blinking green System is receiving power but is not functioning properly Amber Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 15 Product Overview LEDs ...

Страница 16: ...n about the XPS 2200 see the Cisco eXpandable Power System 2200 Hardware Installation Guide on Cisco com http www cisco com go xps2200_hw Port LEDs and Modes Each Ethernet port 1 Gigabit Ethernet module slot and 10 Gigabit Ethernet module slot has a port LED These port LEDs as a group or individually display information about the switch and about the individual ports The port mode determines the t...

Страница 17: ...h LED Colors in Different Modes Meaning Port LED Color Port Mode No link or port was administratively shut down Off STAT port status Link present no activity Green Activity Port is sending or receiving data Blinking green Link fault Error frames can affect connectivity and errors such as excessive collisions CRC errors and alignment and jabber errors are monitored for a link fault indication Alter...

Страница 18: ...duplex Port is operating in full duplex Green The switch is not the active switch For a standalone switch this LED is off Note Off ACTV data active switch The switch is the active switch Green Error during active switch election Amber Switch is a standby member of a data stack and assumes active responsibilities if the current active switch fails Blinking green No stack member corresponding to tha...

Страница 19: ...cabling 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 Caution Blinking amber PoE for the port has been disabled PoE is enabled by default Note Amber 10 Only switches with Po...

Страница 20: ... Blinking amber ACTV LED Table 9 ACTV LED Description Color Switch is not the active switch Off Switch is the active switch or a standalone switch Green Switch is in stack standby mode Slow blinking green An error occurred when the switch was selecting the active switch or another type of stack error occurred Amber STACK LED The STACK LED shows the sequence of member switches in a stack Up to eigh...

Страница 21: ...e is not selected At least one of the 10 100 1000 ports has been denied power or at least one of the 10 100 1000 ports has a PoE mode fault Blinking amber UID Beacon LED The UID and the Beacon LED can be turned on by the administrator to indicate that the switch needs attention It helps the administrator identify the switch The beacon can be turned on by either pressing the UID button on the switc...

Страница 22: ...reen Link is off due to a fault or because it has exceeded a limit set in the switch software 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 Caution Blinking amber Link for the SFP or SFP has been disabled Amber Cata...

Страница 23: ...ear Panel StackWise port connector 6 Ground connector 1 StackPower connector 7 CONSOLE RJ 45 console port 2 AC OK input status LED 8 MGMT RJ 45 10 100 1000 management port 3 PS OK output status LED 9 RESET button 4 Power supply modules AC power supply modules shown 10 Fan module 5 Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 23 Product Overview Rear Panel ...

Страница 24: ...er connector 8 CONSOLE RJ 45 console port 2 AC OK input status LED 9 MGMT RJ 45 10 100 1000 management port 3 PS OK output status LED 10 RESET button 4 Power supply modules AC power supply modules shown 11 BEACON LED 5 Fan module 6 Catalyst 3850 Switch Hardware Installation Guide 24 OL 26779 05 Product Overview Rear Panel ...

Страница 25: ...ector 1 Power supply FAIL LED 6 CONSOLE RJ 45 console port 2 Power supply OK LED 7 BEACON LED 3 Power supply modules 8 MGMT RJ 45 10 100 1000 management 9 AC OK input status LED port 4 Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 25 Product Overview Rear Panel ...

Страница 26: ...Supported power supply modules PWR C1 350WAC PWR C1 715WAC PWR C1 1100WAC PWR C1 440WDC The following power supply modules are applicable to only the WS C3850 48XS switches PWR C3 750WAC R This module has red handles to match fans with red handles Airflow is from the front panel to the rear panel warm air is pulled out of the switch PWR C3 750WAC F This module has blue handles to match fans with b...

Страница 27: ...ly modules are autoranging units that support input voltages between 100 and 240 VAC The 1100 W power supply module is an autoranging unit that supports input voltages between 115 and 240 VAC The 440 W DC power supply module has dual input feeds A and B and supports input voltages between 36 and 72 VDC The output voltage range is 51 to 57 V Each AC power supply module has a power cord for connecti...

Страница 28: ...ower supplies 1 1100 W 1 715 W 1 715 W 1 715 W PoE up to 15 4 per port These are the combinations of power supplies 1 1100 W 1 715 W 2 1100 W These are the combinations of power supplies 1 1100 W 1 715 W 1 715 W PoE up to 30 W per ports These are the combinations of power supplies 1 1100 W 1 715 W 2 1100 W Up to 30 PoE ports can receive full Cisco UPoE Note 2 1100 W Cisco UPoE up to 60 W per port ...

Страница 29: ... information about replacing a power supply module wiring a DC power supply module and module specifications see the Power Supply Installation and Technical Specifications chapters Fan Module Depending on the switch model three or five internal hot swappable 12 V fan modules FAN T1 are available The air circulation system consists of the fan modules and the power supply modules The airflow pattern...

Страница 30: ...atterns 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 30 OL 26779 05 Product Overview Fan Module ...

Страница 31: ...he switch to a host such as a Windows workstation or a terminal server through the 10 100 1000 Ethernet management port or one of the console ports The 10 100 1000 Ethernet management port is a VPN routing forwarding VRF interface and uses a RJ 45 crossover or straight through cable The 10 100 1000 Ethernet management port is an RJ 45 connector that should be connected to a Windows workstation or ...

Страница 32: ...istant Cisco IOS CLI You can configure and monitor the switch and switch cluster members from the CLI You can access the CLI by connecting your management station directly to the switch console port or by using Telnet from a remote management station See the switch command reference on Cisco com for more information Cisco Prime Infrastructure Cisco Prime Infrastructure combines the wireless functi...

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