Cisco 3850 Power Supply Slots

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DESCRIPTION

Cisco Catalyst 3850 Rackmount Gigabit Ethernet Switches, 12 x 24 or 48 Ports, 1 x Network Module Expansion Slot (Sold Separately), Includes Default Power Supply, IP Services feature set. (Please Specify Model Number.)

Default AC Power Supply Rating with Dual Modular Slots: 350W: 350W. Cisco 3560X, Cisco 3750X to Cisco Catalyst 3850 & 3650 Switches. The Cisco Catalyst 3850 Switches provide two slots for redundant power supplies, but only one supply is needed to run a single switch unless full PoE+ is deployed on a 48-port switch. In that case, the power requirement is about 1700W, which is more than the 1100W provided by the largest available power supply. Power stack capacity is supported by Cisco Stackpower technology to provide power redundancy among stacking members. The Modules, Licenses and Accessories Table 2 shows some recommended modules,licenses and accessories of this switch. Models Description C3850-NM-4-1G Cisco 3850 Series 4 x 1GE Network Module C3850-NM-2-10G Cisco 3850 Series 2 x. C3850-NM-4-10G Cisco 3850 Series 4 x 10GE Network Module L-C3850-48-S-E= C3850-48 IP Base to IP Services Electronic RTU License PWR-C1-715WAC Cisco 3850 Series Power Supply 715W AC PWR-C1-715WAC/2 Cisco 3850 Series Secondary Power Supply 715W AC Config 1 Secondary Power Supply CAB-SPWR-30CM Catalyst 3750X and 3850 Stack Power Cable 30 CM.

The Cisco® Catalyst® 3850 Series is the next generation of enterprise-class stackable Ethernet and Multigigabit Ethernet access and aggregation layer switches that provide full convergence between wired and wireless on a single platform. Cisco'™s new Unified Access Data Plane (UADP) application-specific integrated circuit (ASIC) powers the switch and enables uniform wired-wireless policy enforcement, application visibility, flexibility and application optimization. This convergence is built on the resilience of the new and improved Cisco StackWise-480 technology. The Cisco Catalyst 3850 Series Switches support full IEEE 802.3 at Power over Ethernet Plus (PoE+), Cisco Universal Power over Ethernet (Cisco UPOE), modular and field-replaceable network modules, RJ45 and fiber-based downlink interfaces, and redundant fans and power supplies. With speeds that reach 10Gbps, the Cisco Catalyst 3850 Multigigabit Ethernet Switches support current and next-generation wireless speeds and standards (including 802.11ac Wave 2) on existing cabling infrastructure.

Features & Benefits

  • Integrated wireless controller capability with:
    • Up to 40G of wireless capacity per switch (48-port RJ45 models)
    • Support for up to 100 access points and 2000 wireless clients on each switching entity (switch or stack)
  • 24 and 48 10/100/1000Mbps data PoE+ and Cisco UPOE models with energy-efficient Ethernet (EEE)
  • 24 and 48 100Mbps/1/2.5/5/10 Gbps Cisco UPOE models with energy-efficient Ethernet (EEE)
  • 12- and 24-port 1 Gigabit Ethernet SFP-based models
  • 12- and 24-port 1/10 Gigabit Ethernet SFP+-based models
  • 48-port 1/10 Gigabit Ethernet SFP+ model with 4 fixed 40 Gigabit Ethernet QSFP+ uplinks
  • Cisco StackWise-480 technology provides scalability and resiliency with 480 Gbps of stack throughput1
  • Cisco StackPower technology provides power stacking among stack members for power redundancy
  • Five optional uplink modules with 4 x Gigabit Ethernet, 2 x 10 Gigabit Ethernet, 4 x 10 Gigabit Ethernet, 8 x 10 Gigabit Ethernet, or 2 x 40 Gigabit Ethernet QSFP+4 ports
  • Dual redundant, modular power supplies and three modular fans providing redundancy
  • Full IEEE 802.3at (PoE+) with 30W power on all copper ports in 1 rack unit (RU) form factor
  • Cisco UPOE with 60W power per port in 1 rack unit (RU) form factor

It is sometimes confusing on which interfaces are available and which can be configured when using one of the NM modules in a Cisco 3850 Switch. We currently offer three different modules:

C3850-NM-4-1G (four 1-Gigabit SFP module slots)

C3850-NM-2-10G (Combination of 1-Gig and 10-Gig ports)

C3850-NM-4-10G (four 10-Gigabit slots or four 1-Gigabit slots)

The available configuration is based on which model NM you are using. The intent of this document is to help clear up some of the misunderstood configuration options. Below are details on each NM module and how to configure each one when inserted into the switch.

C3850-NM-4-1G:

This module has four 1-Gigabit SFP module slots. Any combination of standard SFP modules are supported. SFP+ modules are not supported. If you insert an SFP+ module in the 1-Gigabit network module, the SFP+ module does not operate, and the switch logs an error message.

C3850-NM-2-10G:

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This module has four slots that support the following combinations:

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• Two slots (left side) support only 1-Gigabit SFP modules and two slots (right side) support either 1-Gigabit SFP or 10-Gigabit SFP modules.

• Three slots (left side) support 1-Gigabit SFP modules and one slot (right side) supports 10-Gigabit Ethernet SFP+.

Supported combinations of SFP and SFP+ modules:

• Slots 1, 2, 3, and 4 populated with 1-Gigabit SFP modules.

• Slots 1 and 2 populated with 1-Gigabit SFP modules, and Slot 4 populated with one 10-Gigabit SFP+ module.

• Slot 3 and Slot 4 each populated with 10-Gigabit SFP+ modules.

C3850-NM-4-10G:

This module has four 10-Gigabit slots or four 1-Gigabit slots.

Note: This is only supported on the 48-port models.

Configuration:

Supply

For the C3850-NM-4-1G module – All ports are natively Gig and are configured as Gig1/1/1 through Gig1/1/4

<snippet>

interface GigabitEthernet1/1/1 <——– Config this interface
!
interface GigabitEthernet1/1/2 <——– Config this interface
!
interface GigabitEthernet1/1/3 <——– Config this interface
!
interface GigabitEthernet1/1/4 <——– Config this interface
!
interface TenGigabitEthernet1/1/1 <——– Disregard
!
interface TenGigabitEthernet1/1/2 <——– Disregard
!
interface TenGigabitEthernet1/1/3 <——– Disregard
!
interface TenGigabitEthernet1/1/4 <——– Disregard

For the C3850-NM-4-10G module – All ports default to 10G and should be configured as
TenGig1/1/1 through TenGig1/1/4 – even though you are operating them as 1G via SFPs.

<snippet>

interface GigabitEthernet1/1/1 <——– Disregard
!
interface GigabitEthernet1/1/2 <——– Disregard
!
interface GigabitEthernet1/1/3 <——– Disregard
!
interface GigabitEthernet1/1/4 <——– Disregard
!
interface TenGigabitEthernet1/1/1 <——– Config this interface
!
interface TenGigabitEthernet1/1/2 <——– Config this interface
!
interface TenGigabitEthernet1/1/3 <——– Config this interface
!
interface TenGigabitEthernet1/1/4 <——– Config this interface

For the C3850-NM-2-10G module – The first two ports are natively 1G ports and the last two ports are natively 10G ports. So you configure the 1Gig ports as Gig1/1/1 through Gig1/1/2, and configure the last two ports as TenGig1/1/3 through TenGig1/1/4 – even if you are operating the last two ports as 1G.

## This is commonly misunderstood ##

<snippet>

interface GigabitEthernet1/1/1 <——– Config this interface
!
interface GigabitEthernet1/1/2 <——– Config this interface
!
interface GigabitEthernet1/1/3 <——– Disregard
!
interface GigabitEthernet1/1/4 <——– Disregard
!
interface TenGigabitEthernet1/1/1 <——– Disregard
!
interface TenGigabitEthernet1/1/2 <——– Disregard
!
interface TenGigabitEthernet1/1/3 <——– Config this interface even if using 1G
!
interface TenGigabitEthernet1/1/4 <——– Config this interface even if using 1G

** There are only 4 interfaces which are valid and the other 4 should not be used even though they still show up in the CLI

Cisco 3850 power supply slot b

Supported GBICs:

TenGig

  • SFP-H10GB-CU1M
  • SFP-H10GB-CU3M
  • SFP-H10GB-CU5M
  • SFP-10G-SR
  • SFP-10G-LRM
  • SFP-10G-LR
  • SFP-10G-ER

OneGig

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  • GLC-T (10/100/1000)
  • GLC-SX-MM
  • GLC-LH-SM
  • GLC-SX-MMD
  • GLC-LH-SMD
  • GLC-ZX-SM
  • GLC-ZX-SMD
  • GLC-BX-D
  • GLC-BX-U
  • CWDM SFP
  • SFP-GE-S
  • SFP-GE-L
  • SFP-GE-Z
  • DWDM SFP
  • DWDM SFP (add.)

Reference:

Installing a Network Module

10-Gigabit Ethernet Transceiver Modules Compatibility Matrix

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Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix

Original Doc you can refer to: https://supportforums.cisco.com/docs/DOC-36084

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