EX4100-H Chassis | Juniper Networks (2024)

Chassis Physical Specifications for EX4100-H Switches

The EX4100-H switch chassis is a rigid sheet-metal structure that houses all components of the switch Table 1 summarizes the physical specifications of the EX4100-H switch chassis.

Figure 1: Clearance Requirements for Thermal Performance (Airflow) and Hardware Maintenance for EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (1)

The following are some points to note when installing the switches:

  • For the cooling system to function properly, the airflow around the chassis must be unrestricted.

  • If you are mounting the switch in a cabinet with other equipment ensure that the exhaust from other equipment does not blow into the intake vents of the chassis. The temperature within the cabinet is greater than room temperature outside the cabinet. Ensure temperature inside the enclosure conforms to environmental specification. See Table 2.

  • Clearance requirements for thermal performance

    • Leave at least 2 in around the device except mounting side for proper airflow around the units and the fin surface.

  • Clearance requirements for hardware maintenance

    • Leave at least 24 in around the device except mounting side for proper airflow around the units and the fin surface.

Figure 2: Clearance Requirements for Thermal Performance (Airflow) and Hardware Maintenance for the external 340 AC PSU used for the EX4100-H-12MP Switch EX4100-H Chassis | Juniper Networks (2)

  • If you are mounting the PSU in a cabinet ensure temperature inside the enclosure conforms to environmental specification. See Table 2.

  • Clearance requirements for thermal performance

    • Leave at least 2 in around the device except mounting side for proper airflow around the units and the fin surface.

  • Clearance requirements for hardware maintenance

    • Leave at least 24 in around the device except mounting side for proper airflow around the units and the fin surface.

Table 1: Physical Specifications of the EX4100-H Switches Models

Model

Chassis Height

Chassis Depth

Chassis Width

EX4100-H-12MP

6 in (15.24 cm)

5.3 in (13.40 cm)

4.4 in (11.17 cm)

Table 2: Weight of Power Supply

Switch Model

Power Supply Unit Weight

340W AC

EX4100-H-12MP

4.52 lb (2.05 kg)

Chassis Status LEDs on EX4100-H Switches

EX4100-H switches have four chassis status LEDs (labeled SYS, ALM, MST, and CLD) on the rightside of the front panel .

Figure 3: Chassis Status LEDs in EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (3)

1

Chassis status LEDs

Table 3 describes the chassis status LEDs labeled SYS, ALM, and MST on an EX4100-H switch. The table also describes the LED color patterns and their status descriptions. You can view the colors of the LEDs remotely through the CLI by issuing the show chassis led operational mode command. Note that all LEDs can be lit simultaneously.

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.

Table 3: SYS, ALM, and MST Chassis Status LEDs on EX4100-H Switches

LED Label

Color

State and Description

SYS

Green

  • On steadily—JunosOS for EXSeries switches is loaded on the switch.

  • Blinking—The switch is booting.

Unlit

The switch is powered off or is halted.

ALM

Red

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

A major alarm indicates a critical error condition that requires immediate attention (see Chassis Component Alarm Conditions on EX4100-H Switches).

Amber

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

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

Unlit

No alarm is in effect, 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 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:

When issuing show system alarms, only the ALM LED of the master switch in a virtual chassis system glows to display the alarm state. Backup switch and linecard ALM LEDs will be unlit. However, when issuing show chassis alarms, ALM LED glows on all of the individual member switches, displaying their individual alarm states.

Note:

For Virtual Chassis deployments managed from the cloud, the CLD LED on individual Virtual Chassis members will reflect the state of the Master, except when a software download is in progress. When a software download is in progress, the CLD LED on a Virtual Chassis member will display the Junos OS upgrading LED pattern and color.​

LEDs on the Management Port on EX4100-H Switches

The management port, labeled MGMT, on the front panel of EX4100-H switches has two LEDs that indicate link activity and port status (see Figure 4 ).

Figure 4: LEDs on the Management Port on EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (4)

1

Link activity LED

2

Status LED

Table 4 describes the LEDs.

Table 4: LEDs on the Management Port on EX4100-H Switches

LED

Color

State and Description

Link activity

Green

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

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

  • Off—The port is not active.

Status

Green

Indicates the speed:

  • On steadily—Link speed is 1000Mbps.

  • On steadily—Link speed is 100Mbps.

  • Off—Link speed is 10Mbps.

PSU Status LEDs on the EX4100-H-12MP Switch Chassis

The PSU 0 and PSU 1 LEDs on the chassis display status of the external PSUs connected to the switch. See Figure 5.

Figure 5: LEDs on the Chassis to Indicate PSU Connection Status EX4100-H Chassis | Juniper Networks (5)

Table 5 describes the colors and statuses of the LEDs.

Table 5: PSU Status LEDs on the EX4100-H-12MP Switch Chassis

PSU LED Label

Color

State and Description

PSU 0

PSU 1

Green

54V output OK or 12V output OK

The external PSU is connected to the PSU connector (PSU 0 and/or PSU 1) on the switch.

Off

Status can be one of the following

  • No input supply

  • The PSU is in standby mode

  • Input cord unplugged or input power lost; with a second power supply in parallel still with input power.

  • Power supply critical event causing a shutdown; OTP, OCP, UVP, OVP

LEDs on the RJ-45 Network Ports, Virtual Chassis Ports, and Uplink Ports on EX4100-H Switches

The RJ-45 network ports, SFP+ uplink ports, and SFP+ Virtual Chassis Ports on EX4100-H switches have LEDs that show the link activity and port status.

LEDs on the Network Ports

The figures in this section show and describe the LEDs on the following ports:

  • Figure 6 shows the LEDs on the RJ-45 network ports on EX4100-H switches.

  • Figure 7 shows the LEDs on the SFP+ uplink ports.

  • Figure 8 shows the LEDs on the SFP+ Virtual Chassis Ports.

  • Table 6 describes the link activity LED state and description on the RJ-45 ports, SFP+ uplink ports, and SFP+ Virtual Chassis Ports.

Figure 6: LEDs on the RJ-45 Network Ports on EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (6)

1

Link activity LED

2

Status LED

Figure 7: LEDs on the SFP+ uplink ports on EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (7)

1

Link activity LED

2

Status LED

Figure 8: LEDs on the SFP+ Virtual Chassis ports on EX4100-H Switches EX4100-H Chassis | Juniper Networks (8)

1

Link activity LED

2

Status LED

Table 6: Link Activity LED on the Network Ports, Uplink Ports, and Virtual Chassis Ports

Link Activity LED Color

Link Status LED State and Description

Green

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

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

  • Off—The port is not active.

EX4100-H switches have network port mode LEDs (labeled SPD, DX, EN, and POE) on the right side of the front panel (see Figure 9). These LEDs indicate the status of the network ports. Use the mode button on the right side of the front panel to toggle the status LEDs. You toggle the status LEDs to show the different port parameters for the network ports. The LED that is lit indicates the port parameter. Table 7 describes the status LEDs.

Note:

The LED labeled PoE is not available on switch models with network ports that do not provide PoE.

Figure 9: Port Mode LEDs on EX4100-H-12MP Switches EX4100-H Chassis | Juniper Networks (9)

1

Port Mode LEDs

Table 7: Port Status of Network Ports Based on States of Port Mode LEDs

LED

Color

State and Description

SPD

Green

Indicates the speed. The speed indicators are as follows:

  • On steadily—1000Mbps

  • On steadily (for EX4100-H uplink and virtual chassis ports)—10 Gbps

  • Blinking—100Mbps

  • Blinking; 1 blink per second (for EX4100-H uplink and virtual chassis ports)—1000 Mbps

  • Blinking; 3 blinks per second (for EX4100-H uplink and virtual chassis ports)—25 Gbps

  • Unlit—10Mbps

DX

Green

Indicates the duplex mode. The status indicators are as follows:

  • On steadily—The port is set to full-duplex mode.

  • Unlit—The port is set to half-duplex mode.

EN

Green

Indicates the administrative status. The status indicators are as follows:

  • On steadily—The port is administratively enabled.

  • Unlit—The port is administratively disabled.

POE

Green

Indicates the PoE mode. The status indicators are as follows:

  • On steadily—PoE is enabled on the port, and a device is drawing power.

  • Blinking—PoE is enabled on the port, but nothing is drawing power from the port.

  • Unlit—PoE is not enabled on the port.

Dry Contact Alarm LEDs

The EX4100-H-12MP switch has three LEDs to indicate alarm conditions. Two LEDs are for input alarms and one LED is for output alarm.

Figure 10: LEDs on the Dry Contact Alarm on a EX4100-H-12MP Switch EX4100-H Chassis | Juniper Networks (10)

Table 8: OUT Dry Contact Alarm LED statuses

OUT

Color

System Status

Off

Alarm OUT is not configured, or the switch is off.

Green

Alarm OUT is configured, no Alarm detected or Input Alarm detected with severity NONE.

Red

Output port triggered/activated.

Table 9: IN0 and IN1 Dry Contact Alarm LED Statuses

IN0 and IN1

Color

System Status

Off

Alarm IN0 or IN1 not configured.

Green

Alarm IN0 or IN1 configured, no alarm detected.

Blinking Red

Major alarm detected.

Red

Minor alarm detected.

EX4100-H Chassis | Juniper Networks (2024)
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