EX4100-H Chassis

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

Note the following points when you start installing the switches:

For the cooling system to function properly, ensure that the airflow around the chassis 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 always greater than room temperature outside the cabinet. Ensure the temperature inside the enclosure conforms to environmental specification. See Table 2.
Clearance requirements for thermal performance: Leave at least 2 in. space around the device except on the mounting side for proper airflow around the units and the fin surface.
Clearance requirements for hardware maintenance: Leave at least 24 in. space around the device except on the 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

Clearance Requirements for Thermal Performance (Airflow) and Hardware Maintenance for the External 340 AC PSU Used for the EX4100-H-12MP Switch

Figure 3: Clearance Requirements for Thermal Performance (Airflow) and Hardware Maintenance for the External 340 W DC PSU Used for the EX4100-H-12MP Switch

Clearance Requirements for Thermal Performance (Airflow) and Hardware Maintenance for the External 340 W DC PSU Used for the EX4100-H-12MP Switch

Note:

If you are mounting the PSU in a cabinet, ensure the temperature inside the enclosure conforms to environmental specification. See Table 2.
Clearance requirements for thermal performance: Leave at least 2 in. space around the device except on the mounting side for proper airflow around the units and the fin surface.
Clearance requirements for hardware maintenance: Leave at least 24 in. space around the device except on the mounting side for proper airflow around the units and the fin surface.

Table 1: Physical Specifications of the EX4100-H-12MP
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 the PSU
Switch Model	Power Supply Unit Weight
	340 W external AC PSU	340 W external DC PSU
EX4100-H-12MP	4.52 lb (2.05 kg)	4.07 lb (1.85 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 4: Chassis Status LEDs in EX4100-H-12MP Switches

Chassis Status LEDs in EX4100-H-12MP SwitchesFig title not required

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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, and to understand how the cloud connection works, see Cloud Connection Process.

Table 3: SYS, ALM, and MST Chassis Status LEDs on EX4100-H Switches
LED Label	Color	State and Description
SYS	Green	On steadily—Junos OS is loaded on the switch. Blinking—The switch is booting.
SYS	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.
MST	Green	In a Virtual Chassis configuration: On steadily—The switch is the primary one in the Virtual Chassis configuration. Blinking—The switch is the backup one 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 the link activity and port status (see Figure 5 ).

Figure 5: LEDs on the Management Port on EX4100-H-12MP Switches

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Link activity LED

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Status LED

Table 4 describes the LEDs on the management port.

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 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	Green	Indicates the speed: On steadily—Link speed is 1000 Mbps. On steadily—Link speed is 100 Mbps. Off—Link speed is 10 Mbps.

PSU Status LEDs on the Switch Chassis

The PSU 0 and PSU 1 LEDs on the chassis display status of the external PSUs connected to the switch. See Figure 6.

Figure 6: LEDs on the Chassis to Indicate PSU Connection Status

Table 5 describes the colors and statuses of the LEDs.

Table 5: PSU Status LEDs
PSU LED Label	Color	State and Description
PSU 0 PSU 1	Green	54 V output OK or 12 V output OK. The external PSU is connected to the PSU connector (PSU 0 and/or PSU 1) on the switch.
PSU 0 PSU 1	Off	Status can be one of the following No input supply. The PSU in standby mode. The input cord unplugged or the input power lost, with a second PSU 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 LEDs on the RJ-45 network ports, SFP+ uplink ports, and SFP+ Virtual Chassis ports on EX4100-H switches show the link activity and port status.

LEDs on the Network Ports

The figures in this section show the LEDs on their respective ports:

Figure 7 shows the LEDs on the RJ-45 network ports on EX4100-H switches.
Figure 8 shows the LEDs on the SFP+ uplink ports.
Figure 9 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 7: LEDs on the RJ-45 Network Ports on EX4100-H-12MP Switches

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Link activity LED

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Status LED

Figure 8: LEDs on the SFP+ uplink ports on EX4100-H-12MP Switches

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Link activity LED

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Status LED

Figure 9: LEDs on the SFP+ Virtual Chassis Ports on EX4100-H Switches

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Link activity LED

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Status LED

Table 6: Link Activity LED on the Network Ports, Uplink Ports, and VC Ports
LED Color	State and Description
Green	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.

EX4100-H switches have network port mode LEDs (labeled SPD, DX, EN, and POE) on the right side of the front panel (see Figure 10). 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 10: Port Mode LEDs on EX4100-H-12MP Switches

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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. On steadily—1000 Mbps On steadily (for EX4100-H uplink and Virtual Chassis ports)—10 Gbps Blinking—100 Mbps 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—10 Mbps
DX	Green	Indicates the duplex mode. 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. On steadily—The port is administratively enabled. Unlit—The port is administratively disabled.
POE	Green	Indicates the PoE mode. On steadily—PoE is enabled on the port, and a device is drawing power. Blinking—PoE is enabled on the port, but none of the devices are drawing power from the port. Unlit—PoE is not enabled on the port.

Dry Contact Alarm LEDs

The EX4100-H switch has three LEDs to indicate alarm conditions. Two LEDs are for input alarms (IN0 AND IN1) and one LED is for output alarm (OUT).

Figure 11: LEDs on the Dry Contact Alarm on a EX4100-H-12MP Switch

Table 8: OUT Dry Contact Alarm LED statuses
OUT
Color	System Status
Off	Alarm OUT not configured, or the switch in off mode.
Green	Alarm OUT configured, no alarm detected, or an input alarm detected with severity NONE.
Red	Output port triggered or 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.

ON THIS PAGE

Chassis Physical Specifications for EX4100-H Switches

Chassis Status LEDs on EX4100-H Switches

LEDs on the Management Port on EX4100-H Switches

PSU Status LEDs on the Switch Chassis

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

LEDs on the Network Ports

Dry Contact Alarm LEDs