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ACX7020 Chassis

Learn about the ACX7020 router chassis.

ACX7020 Chassis Description

The router chassis is a rigid sheet metal structure that houses all the router components. The ACX7020 router has a 1-U fixed form factor with two fixed power supply modules (PSMs) that support AC or DC power. The ACX7020 router cooling system consists of an air filter and a fixed fan tray with three fans that provide side-to-side cooling.

Figure 1: Front View of an AC-Powered ACX7020 Router Front View of an AC-Powered ACX7020 Router
  1

ESD point

  9

Air filter

  2

Claim code label

10

10M OUT port

  3

Status LEDs

11

1PPS OUT port

  4

USB 3.0 Type-A port

12

Console (CON) port

  5

Management (MGMT) port

13

Reset (RESET) button

  6

10M IN port

14

AC PSMs

  7

4 SFP28 ports

15

Grounding point

  8

16 SFP ports

 
Figure 2: Front View of a DC-Powered ACX7020 Router Front View of a DC-Powered ACX7020 Router
  1

ESD point

  9

Air filter

  2

Claim code label

10

10M OUT port

  3

Status LEDs

11

1PPS OUT port

  4

USB 3.0 Type-A port

12

Console (CON) port

  5

Management (MGMT) port

13

Reset (RESET) button

  6

10M IN port

14

DC PSMs

  7

4 SFP28 ports

15

Grounding points

  8

16 SFP ports

 
Figure 3: Rear View of an ACX7020 Router Rear View of an ACX7020 Router

Port Panel on ACX7020 Routers

The port panel of an ACX7020 router has the following port configurations:

  • Four 25GbE small form-factor pluggable 28 (SFP28) ports (port 0 through 3) that operate at 25-Gbps speed with SFP28 transceivers, 10-Gbps speed with SFP+ transceivers or 1-Gbps speed with SFP transceivers.

  • Sixteen 10GbE small form-factor pluggable (SFP+) ports (port 4 through 19) that operate at 10-Gbps speed with SFP+ transceivers, or 1-Gbps speed with SFP transceivers.

Note:

If you configure Precision Time Protocol (PTP), no interfaces are created for port 19 and the port is disabled.

Figure 4: ACX7020 Router Port Panel ACX7020 Router Port Panel
  1

Four 25GbE/10GbE/1GbE SFP28 ports

  2

Sixteen 10GbE/1GbE SFP+ ports

Management Panel on ACX7020 Routers

The management panel on ACX7020 routers is located on the front of the router.

Figure 5: Management Panel Components on ACX7020 Routers Management Panel Components on ACX7020 Routers
  1

USB 3.0 Type-A port

  3

Console (CON) port

  2

Management (MGMT) port

  4

Reset (RESET) button

The management panel on an ACX7020 router displays the router product number, and it consists of the following components:

  • USB Type-A port for image updates.

  • Management (MGMT) port—10/100/1000BASE-T port that uses an RJ-45 connector to connect to a management device for out-of-band management.

  • Console (CON) port—Uses an RJ-45 connector to connect to a console management device.

  • Reset (RESET) button to reset the router.

Timing Ports

The ACX7020 router is equipped with three timing ports.

Figure 6: Timing Ports Timing Ports
  1

1PPS OUT port

  3

10M OUT port

  2

10M IN port

 

Here's the definition of the ports and labels on the timing ports.

  • 10M IN—10-MHz input clocking port for connecting to external clock signal sources. The clocking port synchronizes clock inputs based on the clock’s priority.

  • 10M OUT—10-MHz output clocking port to provide a reference clock signal.

  • 1PPS OUT—1-pulse per second (PPS) output port for time synchronization.

Management Port LEDs on ACX7020 Routers

The ACX7020 routers have a management port that has separate LEDs to indicate link status and link activity.

Figure 7: Management Port LEDs on an ACX7020 Router Management Port LEDs on an ACX7020 Router
  1

Link activity LED

  2

Status LED

Table 1: Management Port LEDs on ACX7020 Routers

LED

Color

State

Description

Link activity LED

Unlit

Off

No link is established.

Green

Blinking

A link is established, and link activity is present.

Status LED

Unlit

Off

No link is established, or the port speed is 10 Mbps.

Amber

On steadily

The port speed is 100 Mbps.

Green

On steadily

The port speed is 1 Gbps.

Chassis Status LEDs on ACX7020 Routers

Each ACX7020 router has four status LEDs that indicate the system status. You can find these LEDs to the left of the USB port

Figure 8: Chassis Status LEDs on an ACX7020 Router Chassis Status LEDs on an ACX7020 Router
  1

ALM (Alarm)

  3

ID (Identification)

  2

MST (Primary)

  4

SYS (System)

Table 2 describes the chassis status LEDs on ACX7020 routers, including their colors, states, and the corresponding status they represent. You can view the colors of the LEDs remotely through the CLI by running the operational mode command show chassis led.

Table 2: Chassis Status LEDs on an ACX7020 Router

Name

Color

State

Description

ALM—Alarm LED

Unlit

Off

The router is halted, or there is no alarm.

Red

On steadily

Indicates the presence of a critical situation, which could be related to either hardware or software.

Begin by checking for hardware-related causes such as temperature anomalies or a power failure. Switch off power to the router and unplug the power cords. Correct any voltage or site temperature issues, and allow the router to cool down. Power on the router, and monitor the system LEDs to determine where the error is occurring.

If the issue persists or is software-related, review the alarm details and take appropriate action based on the findings.

Yellow

On steadily

Indicates the presence of a minor issue, which could be related to either hardware or software. If it is a hardware issue, try rebooting the router, as this may resolve the issue. If the issue persists or is software-related, review the alarm details and take appropriate action based on the findings.

Red and Yellow

Blinking

Indicates the presence of a major and a minor alarm.

SYS—System LED

Unlit

Off

The router is powered off or halted.

Green

On steadily

Junos OS Evolved is loaded on the router, and the router is online.

Green

Blinking

The router is loading the software.

Green

Blipping (slow blink)

The router is powering up.

MST—Primary LED

Green

On steadily

The router is a standalone router.

Unlit

Off

The router is a linecard member.

ID—Identification LED

Unlit

Off

The beacon feature is not enabled on the router. You can enable this feature by using the request chassis beacon command.

Blue

Blinking

The beacon feature is enabled on the router. You can disable this feature by using the request chassis beacon command.

Network Port LEDs on ACX7020 Routers

Each ACX7020 network port has a single LED to indicate link status, activity on the link, or a fault condition.

Figure 9: Network Port LEDs Network Port LEDs
  1

Upper-port LED

  2

Lower-port LED

Table 3 describes the network port LEDs on the ACX7020 routers, their colors and states, and the status that they indicate.

Table 3: Network Port LEDs on ACX7020 Routers

LED Color

LED State

Description

Unlit

Off

There is no power, the link is down, or a transceiver is not present.

Green

On steadily

A link is established, and all channels are up.

Blinking

The beacon function is enabled on the port.

Amber

On steadily

The port is disabled in the CLI.

Red

On steadily

All channels are down.