Juniper Networks EX4200, EX3200 manual Uplink Modules, Power over Ethernet PoE Ports

Chapter 1: EX3200 and EX4200 Switches Overview

pluggable (SFP+) transceivers, or 10-gigabit small form-factor pluggable (XFP) transceivers for use with fiber connections.

Additionally, a 24-port model provides 100Base-FX/1000Base-X SFP ports. This model is typically used as a small distribution switch.

All EX4200 switches have dedicated 64-Gbps Virtual Chassis ports that allow you to connect the switches to each other. You can also use optional uplink module ports to connect members of a Virtual Chassis across multiple wiring closets.

To provide carrier-class reliability, EX4200 switches include:

■Dual redundant power supplies that are field-replaceable and hot-swappable. An optional additional connection to an external power source is also available.

■A field-replaceable fan tray with three fans. The switch remains operational if a single fan fails.

■Redundant Routing Engines in a Virtual Chassis configuration. This redundancy enables GRES (graceful Routing Engine switchover) and nonstop active routing.

■JUNOS Software with its modular design that enables failed system processes to gracefully restart.

Uplink Modules

Optional uplink modules are available for all EX3200 and EX4200 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 or to interconnect member switches of a Virtual Chassis across multiple wiring closets.

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. Both the EX3200 and EX4200 switches have options of full (all 24 or 48 ports) or partial (8 ports) PoE capability.

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.

Related Topics ■ EX3200 Switch Models on page 6

■EX4200 Switch Models on page 6

■Field-Replaceable Units in EX3200 and EX4200 Switches on page 16

■Site Preparation Checklist for EX3200 and EX4200 Switches on page 81

EX3200 and EX4200 Switches Hardware Overview ■ 5