EX3200 System Overview

 

EX3200 Switches Hardware Overview

Juniper Networks EX Series Ethernet Switches provide scalable connectivity for the enterprise market, including branch offices, campus locations, and data centers. The switches run the Juniper Networks Junos operating system (Junos OS), which provides Layer 2 and Layer 3 switching, routing, and security services. The same Junos OS code base that runs on EX Series switches also runs on all Juniper Networks M Series, MX Series, and T Series routers.

EX3200 Switches

Juniper Networks EX3200 Ethernet Switches provide connectivity for low-density environments. Typically, you deploy these switches in branch environments or wiring closets where only one switch is required.

EX3200 switches are available in models with either 24 or 48 ports and with either all ports equipped for Power over Ethernet (PoE) or only 8 ports equipped for PoE. EX3200 switches with a DC power supply installed do not provide PoE. All models provide ports that have 10/100/1000Base-T Gigabit Ethernet connectors and optional 1-gigabit small form-factor pluggable (SFP) transceivers, 10-gigabit small form-factor pluggable (SFP+) transceivers, or 10-gigabit small form-factor pluggable (XFP) transceivers for use with fiber connections.

EX3200 switches include:

  • A field-replaceable power supply and an optional additional connection to an external power source.

  • A field-replaceable fan tray with single fan.

  • Junos OS with its modular design that enables failed system processes to gracefully restart.

EX3200 switches have these features:

  • Run Junos OS for EX Series switches

  • Have options of 24-port and 48-port models

  • Have options of full (all ports) or partial (8 ports) Power over Ethernet (PoE) capability

  • Have optional uplink modules that provide connection to distribution switches

Uplink Modules

Optional uplink modules are available for all EX3200 switches. Uplink modules provide two 10-gigabit small form-factor pluggable (XFP) transceivers, four 1-gigabit small form-factor pluggable (SFP) transceivers, or two 10-gigabit small form-factor pluggable (SFP+) transceivers. You can use XFP, SFP, or SFP+ ports to connect an access switch to a distribution switch.

Power over Ethernet (PoE) Ports

PoE ports provide electrical current to devices through the network cables so that separate power cords for devices such as IP phones, wireless access points, and security cameras are unnecessary.

PoE is defined in the IEEE 802.3af standard. In this standard, the amount of power that can be supplied to a powered device is limited to 15.4 W. Starting with Junos OS Release 11.1, EX3200 switches support enhanced PoE, a Juniper Networks extension to the IEEE 302.3af PoE standard that permits up to 18.6 W per PoE port.

EX3200 switches with an AC power supply installed have options of full (all 24 or 48 ports) or partial (8 ports) PoE capability. EX3200 switches with a DC power supply installed do not provide PoE.

Full PoE models are primarily used in IP telephony environments. Partial PoE models are used in environments where, for example, only a few ports for wireless access points or security cameras are required.

EX3200 Switch Models

The EX3200 switch is available with 24 or 48 ports with partial or full Power over Ethernet (PoE) capability. EX3200 switches with a DC power supply installed do not provide PoE. Table 1 lists the EX3200 switch models.

Table 1: EX3200 Switch Models

ModelTypical DeploymentAccess PortsNumber of PoE-enabled PortsPower Supply (Minimum)

EX3200-24T

Access or Distribution switch

24 Gigabit Ethernet

First 8 ports

320 W

EX3200-48T

Access or Distribution switch

48 Gigabit Ethernet

First 8 ports

320 W

EX3200-24P

Access switch

24 Gigabit Ethernet

All 24 ports

600 W

EX3200-48P

Access switch

48 Gigabit Ethernet

All 48 ports

930 W

EX3200-24T-DC

Access or Distribution switch

24 Gigabit Ethernet

0

190 W

EX3200-48T-DC

Access or Distribution switch

48 Gigabit Ethernet

0

190 W

EX3200 Switch Hardware and CLI Terminology Mapping

This topic describes the hardware terms used in EX3200 switch documentation and the corresponding terms used in the Junos OS command line interface (CLI). See Table 2.

Table 2: CLI Equivalents of Terms Used in Documentation for EX3200 Switches

Hardware Item (CLI)

Description (CLI)

Value (CLI)

Item in Documentation

Additional Information

Chassis

One of the following:

  • EX3200-24T

  • EX3200-24P

  • EX3200-48T

  • EX3200-48P

Switch chassis

Chassis Physical Specifications for EX3200 Switches

FPC (n)

Abbreviated name of the Flexible PIC Concentrator (FPC)

One of the following:

  • EX3200-24T

  • EX3200-24P

  • EX3200-48T

  • EX3200-48P

Value of n is always 0.

The switch does not have actual FPCs. In this case, FPC refers to the switch itself.

Understanding Interface Naming Conventions

PIC (n)

Abbreviated name of the Physical Interface Card (PIC)

n is a value in the range of 0–1.

The switch does not have actual PIC devices; see entries for PIC 0 through PIC1 for the equivalent item on the switch.

Understanding Interface Naming Conventions

 

One of the following:

  • 24x 10/100/1000 Base-T

  • 48x 10/100/1000 Base-T

PIC 0

Built-in network ports on the front panel of the switch

Front Panel of an EX3200 Switch

 

One of the following:

  • 2x 10GE SFP+

  • 4x GE SFP

  • 2x 10 GE XFP

PIC 1

Uplink module installed on the front panel of the switch

Uplink Modules in EX3200 Switches

Xcvr (n)

Abbreviated name of the transceiver

n is a value equivalent to the number of the port in which the transceiver is installed.

Optical transceivers

Pluggable Transceivers Supported on EX3200 Switches

Power supply (n)

One of the following:

  • PS 320W AC

  • PS 600W AC

  • PS 930W AC

  • PS 190W DC

Value of n is always 0. The value corresponds to the power supply slot number.

AC or DC power supply

Power Supply in EX3200 Switches

Fan tray

Fan tray

Fan tray

EX3200 Cooling System

Chassis Physical Specifications for EX3200 Switches

The EX3200 switch chassis is a rigid sheet-metal structure that houses the hardware components. Table 3 summarizes the physical specifications of the EX3200 switch chassis.

Table 3: Physical Specifications of the Switch Chassis

Description

Value

Chassis height

1.75 in. (4.45 cm)

Chassis width

  • 17.25 in. (43.82 cm)

  • 19 in. (48.2 cm) with mounting brackets attached

Chassis depth

  • Without power supply installed—17 in. (43.18 cm)

  • With power supply installed:

    • 320 W AC power supply or 190 W DC power supply installed—17 in. (43.18 cm)

    • 600 W or 930 W AC power supply installed—19.25 in. (48.9 cm)

Weight

  • 320 W AC power supply: 2.5 lb (1.1 kg)

  • 600 W and 930 W AC power supplies: 3.1 lb (1.4 kg)

  • 190 W DC power supply: 2.5 lb (1.1 kg)

Note

The weight of an EX3200 switch with one power supply installed is between 15–17 lb (6.8–7.7 kg).

Field-Replaceable Units in EX3200 Switches

Field-replaceable units (FRUs) are components that you can replace at your site. The FRUs in the switch are:

  • Power supply

  • Fan tray

  • Uplink module

  • Transceivers

Note

Uplink modules are not part of the standard package and must be ordered separately.

The fan tray, uplink module, and transceivers are hot-removable and hot-insertable: You can remove and replace them without powering off the switch or disrupting switch functions.

Note

If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/ . Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.