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EX4400 Chassis

Chassis Physical Specifications for EX4400 Switches

The EX4400 switch chassis is a rigid sheet-metal structure that houses all components of the switch. Table 1 summarizes the physical specifications of the EX4400 switch chassis.

Figure 1: EX4400 Switches—Dimensions and Clearance Requirements EX4400 Switches—Dimensions and Clearance Requirements
Table 1: Physical Specifications of the EX4400 Switch Chassis

Description

Value

Chassis height

1.72 in. (4.37 cm)

Chassis width

17.39 in. (44.17 cm)

The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).

Chassis depth

  • With no power supply, fan module, or extension module installed: 15.71 in. (39.9 cm)

  • With power supply and fan module installed: 16.93 in. (43 cm)

    The cables and power supply cords you connect to the switch extend the depth.

  • With power supply, fan module, and extension module installed: 17.35 in. (44.07 cm)

Weight

  • Switch with no power supply, fan module, or extension module installed: 12–13.67 lb (5.43–6.2 kg)

  • Fan module: 0.26 lb (0.12 kg)

  • 550 W AC power supply: 1.76 lb (0.8 kg)

  • 550 W DC power supply: 1.65 lb (0.75 kg)

  • 1050 W AC power supply: 1.98 lb (0.9 kg)

  • 1600 W AC power supply: 2 lb (0.91 kg)

  • 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg)

  • 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg)

  • 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg)

We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.

You can mount an EX4400 switch:

  • On a two-post rack or on two posts of a 19-in. four-post rack by using the two-post mounting brackets provided with the switch.

  • Flush with the front posts of a 19-in. four-post rack by using a separately orderable four-post rack mount kit.

  • In a recessed position inside a 19-in. four-post rack by using the recessed-mounting brackets provided with a separately orderable four-post rack mount kit.

  • On a desk or other level surface by using the rubber feet provided with the switch.

  • On a wall by using a separately orderable wall mount kit.

To know the part numbers for ordering the separately orderable mounting kits, see the EX4400 Switches Datasheet.

See EX4400 Models and Specifications to know more about the EX4400 models and their specifications.

Chassis Status LEDs on EX4400 Switches

Each EX4400 switch has four chassis status LEDs (labeled SYS, ALM, MST, and CLD) on the right-hand side of the front panel (see Figure 2).

For information on the blink patterns of the CLD LED, which provide the cloud connection status of the switch, see Cloud Ready LED Blink Patterns, or see Cloud Connection Process, to understand how the cloud connection works.

Figure 2: Chassis Status LEDs in EX4400 Switches Chassis Status LEDs in EX4400 Switches
  1

Chassis status LEDs

 

Table 2 describes the chassis status LEDs labeled SYS, ALM, and MST on an EX4400 switch, their colors and states, and the status they indicate. You can view the colors of the LEDs remotely through the CLI by issuing the show chassis led operational mode command. All LEDs can be lit simultaneously.

Table 2: SYS, ALM, and MST Chassis Status LEDs on EX4400 Switches

LED Label

Color

State and Description

SYS

Green

  • On steadily—Junos OS for EX Series switches is loaded on the switch.

  • Blinking—The switch is booting.

Unlit

The switch is powered off or is halted.

ALM

Red

There is a major hardware fault, such as a temperature alarm or a power failure alarm, and the switch is halted.

A major alarm indicates a critical error condition that requires immediate attention (see Chassis Component Alarm Conditions on EX4400 Switches).

Amber

There is a minor alarm, such as a software or a hardware error. Power off the switch and then power it on. Monitor the switch to see whether it is working properly.

A minor alarm indicates a noncritical condition that requires monitoring or maintenance. A minor alarm that is left unchecked might cause interruption in service or performance degradation.

Unlit

There is no alarm or the switch is halted.

MST

Green

In a standalone switch:

  • On steadily—The switch is functioning normally.

  • Off—The switch is powered off or is halted.

In a Virtual Chassis configuration:

  • On steadily—The switch is the primary switch in the Virtual Chassis configuration.

  • Blinking—The switch is functioning as the backup switch in the Virtual Chassis configuration.

  • Off—The switch is a linecard member in the Virtual Chassis configuration or the switch is halted.

Note:

Issuing request system power-off doesn't power-off the SYS LED, which continues to blink. It is because this command will power-off only the CPU board. As CPU board asserts platform reset during shutdown process, it will trigger SYS LED to enter default state of blinking. This is expected behavior.

LEDs on the Management Port on EX4400 Switches

The management port—labeled MGMT—has two LEDs that indicate link activity and status of the port (see Figure 3 and Figure 4). The management port is on the rear panel of EX4400 switch models except the EX4400-24X model. The management port is on the front panel of the EX4400-24X model.

Figure 3: LEDs on the Management Port on EX4400 Switches Except the EX4400-24X Model LEDs on the Management Port on EX4400 Switches Except the EX4400-24X Model
  1

Link activity LED

  2

Status LED

Figure 4: LEDs on the Management Port on the EX4400-24X Model LEDs on the Management Port on the EX4400-24X Model
  1

Link activity LED

  2

Status LED

Table 3 describes the LEDs.

Table 3: LEDs on the Management Port on EX4400 Switches

LED

State and Description

Link activity

  • On steadily—The port and the link are active, but there is no link activity.

  • Blinking—The port and the link are active, and there is link activity.

  • Off—The port is not active.

Status

Indicates the speed:

  • On steadily—Link speed is 1000 Mbps.

  • Blinking—Link speed is 100 Mbps.

  • Off—Link speed is 10 Mbps.