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ACX7024 and ACX7024X System Overview

ACX7024 and ACX7024X Hardware Overview

The Juniper Networks® ACX7024 and ACX7024X Cloud Metro routers are high-performance access routers that are designed to address the growing demands of metro applications. With a compact 1-U fixed form factor and advanced timing capabilities, these routers are well suited to support Ethernet business services, residential access, and 5G mobile deployments.

The ACX7024 and ACX7024X routers have a system throughput of 360 Gbps. With 1-Gigabit Ethernet (GbE) through 100GbE port flexibility, these routers provide the scalability to accommodate service migration and growth. The routers run Junos OS Evolved and provide several capabilities that include support for the latest protocol and traffic engineering technologies, enhanced security, and precision timing for mobile backhaul applications.

The ACX7024 and ACX7024X routers have the same form factor, FRUs, and physical specifications. However, the ACX7024 is an industrial-rated (itemp) router with a temperature-hardened design. On the other hand, the ACX7024X is a commercial-grade router with higher RAM and CPU capabilities than ACX7024 to improve scale and performance aspects.

You can configure ACX7024 and ACX7024X routers using Junos OS Evolved CLI. You can also onboard, configure, and monitor the ACX7024 router using Paragon Automation.

Figure 1: DC-Powered ACX7024 Router DC-Powered ACX7024 RouterWill this illustration be replaced with a snap? I mean, as we are showing views of the router in the next section, this illustration doesn't have much value. DC-Powered ACX7024 RouterWill this illustration be replaced with a snap? I mean, as we are showing views of the router in the next section, this illustration doesn't have much value.
Figure 2: DC-Powered ACX7024X Router DC-Powered ACX7024X Router DC-Powered ACX7024X Router

We ship the ACX7024 and ACX7024X routers with front-to-back airflow (airflow out or AFO) and AC or DC power supply modules (PSMs).

Components on the Front and Rear Panels of an ACX7024 Router

Figure 3 shows the front view of an AC-powered ACX7024 Router.

Figure 3: Front View of an AC-Powered ACX7024 Router Front View of an AC-Powered ACX7024 Router
  1

ESD point

  7

24 SFP28 ports

  2

Status LEDs

  8

1-PPS and 10-MHz GPS input and output ports

  3

USB Type-C port

  9

Reset (RESET) button

  4

USB Type-A port

10

Console (CON) port

  5

Management (MGMT) port

11

AC PSMs

  6

4 QSFP28 ports

 

Figure 4 shows the front view of a DC-powered ACX7024 router.

Figure 4: Front View of a DC-Powered ACX7024 Router Front View of a DC-Powered ACX7024 Router
  1

ESD point

  7

24 SFP28 ports

  2

Status LEDs

  8

1-PPS and 10-MHz GPS input and output ports

  3

USB Type-C port

  9

Reset (RESET) button

  4

USB Type-A port

10

Console (CON) port

  5

Management (MGMT) port

11

DC PSMs

  6

4 QSFP28 ports

 

Figure 5 shows the rear view of an ACX7024 router.

Figure 5: Rear View of an ACX7024 Router Rear View of an ACX7024 Router
  1
Six system fans
 

Components on the Front and Rear Panels of an ACX7024X Router

Figure 6 shows the front view of an AC-powered ACX7024X Router.

Figure 6: Front View of an AC-Powered ACX7024X Router Front View of an AC-Powered ACX7024X Router
  1

ESD point

  7

24 SFP28 ports

  2

Status LEDs

  8

1-PPS and 10-MHz GPS input and output ports

  3

USB Type-C port

  9

Reset (RESET) button

  4

USB Type-A port

10

Console (CON) port

  5

Management (MGMT) port

11

AC PSMs

  6

4 QSFP28 ports

 

Figure 7 shows the front view of a DC-powered ACX7024X router.

Figure 7: Front View of a DC-Powered ACX7024X Router Front View of a DC-Powered ACX7024X Router
  1

ESD point

  7

24 SFP28 ports

  2

Status LEDs

  8

1-PPS and 10-MHz GPS input and output ports

  3

USB Type-C port

  9

Reset (RESET) button

  4

USB Type-A port

10

Console (CON) port

  5

Management (MGMT) port

11

DC PSMs

  6

4 QSFP28 ports

 

Figure 8 shows the rear view of an ACX7024X router.

Figure 8: Rear View of an ACX7024X Router Rear View of an ACX7024X Router
  1
Six system fans
 

Benefits of ACX7024 and ACX7024X Routers

  • Compact form factor—Has a compact 1-U form factor that enables you to use it in a wide variety of environmental deployments. You can use the ACX7024 and ACX7024X in networks with limited rack space and cooling capacity.

  • Advanced timing features—Supports precision timing capabilities including Synchronous Ethernet, Precision Time Protocol (PTP), and Class C timing for low-latency 5G services.

  • Next-gen capabilities—Supports next-generation protocols including segment routing, Segment Routing IPv6 (SRv6), MPLS, and EVPN-VXLAN.

ACX7024 Router Models

The ACX7024 routers are available with either AC or DC power supply modules (PSMs) and with airflow-out (AFO). AFO is also known as front-to-back cooling.

Table 1 lists the model numbers for ACX7024 routers.

Table 1: ACX7024 Router Model Numbers and Description

Model Number

Power Supply

Airflow

ACX7024-DC-1PSU

DC

Front-to-back (AFO)

ACX7024-DC-2PSU

DC

Front-to-back (AFO)

ACX7024-AC-1PSU

AC

Front-to-back (AFO)

ACX7024-AC-2PSU

AC

Front-to-back (AFO)

ACX7024X Router Models

The ACX7024X routers are available with either AC or DC power supply modules (PSMs) and with airflow-out (AFO). AFO is also known as front-to-back cooling.

Table 2 lists the model numbers for ACX7024X routers.

Table 2: ACX7024X Router Model Numbers and Description

Model Number

Power Supply

Airflow

ACX7024X-DC-2PSU

DC

Front-to-back (AFO)

ACX7024X-AC-2PSU

AC

Front-to-back (AFO)

Field-Replaceable Units in ACX7024 and ACX7024X Routers

Field-replaceable units (FRUs) are components that you can replace at your site. The following are the FRUs in ACX7024 and ACX7024X routers:

  • Power supply modules (PSMs)

  • Transceivers

Note:

If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/csc/management/updateinstallbase.jsp. Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.

Note:

Before removing the optical transceivers, we recommend that you disable the interface using the set interfaces interface-name disable command.

Hardware Redundancy of ACX7024 and ACX7024X Router Components and Functionality

The following hardware components provide redundancy on ACX7024 and ACX7024X routers:

  • Power supply modules (PSMs)—You can install two PSMs on ACX7024 and ACX7024X routers to provide full power redundancy to the device. Each PSM provides power to all the components in the router. If one PSM fails, or if you remove one PSM, the second PSM balances the electrical load without interruption. Connect the first power source feed to one PSM, and connect the other power source feed to the second PSM.

    CAUTION:

    Do not connect both the power source feeds to the same power supply input terminal.

  • Cooling system—Each ACX7024 and ACX7024X router has six system fans that provide redundancy for cooling. When a system fan (single or multiple) fails, a chassis alarm is raised and the fan(s) need to be replaced. In case of a single fan failure, the router continues to operate with the remaining fans according to GR-3108 specifications. However, if multiple fans fail, it requires immediate replacement of the fans. The system fans in an ACX7024 and ACX7024X router are fixed and cannot be replaced at your site. You must return the router to Juniper Networks for repair or replacement of the fans (see Returning an ACX7024 or ACX7024X Chassis or Components).

ACX7024 and ACX7024X Routers Hardware and CLI Terminology Mapping

Table 3 describes the hardware terms used in the Junos OS CLI for the ACX7024 router.

Table 3: CLI Equivalents of Terms Used in Documentation for ACX7024 Routers

Hardware Item (as Displayed in the CLI)

Description (as Displayed in the CLI) for ACX7024 Routers

Value (as Displayed in the CLI)

Item in Documentation

Additional Information

Chassis

JNP7024 [ACX7024]

Router chassis

Chassis Physical Specifications for ACX7024 and ACX7024X Routers

Routing Engine

RE-ACX-7024

Built-in Routing Engine

FPC n

ACX7024-FPC

The value of n is always 0.

The router does not have actual Flexible PIC Concentrator (FPC) line cards. In this case, FPC refers to the router.

PIC n

MRATE- 24xSFP28 + 4xQSFP

The value of n is always 0.

Abbreviated name of the PIC.

The router does not have physical PICs.

The built-in network ports on the front panel of the router map to logical PICs.

PSM (n)

JPSU-400W-DC-AFI

or

JPSU-400W-AC-AFI

n is a value in the range of 0–1. The value corresponds to the power supply slot number.

AC or DC power supply module

ACX7024 and ACX7024X Power System

Fan tray (n)

ACX7024 Fan, Front to Back Airflow - AFO

The value of n is always 0.

System fan

Cooling System and Airflow in ACX7024 and ACX7024X Routers

Table 4 describes the hardware terms used in the Junos OS CLI for the ACX7024X router.

Table 4: CLI Equivalents of Terms Used in Documentation for ACX7024X Routers

Hardware Item (as Displayed in the CLI)

Description (as Displayed in the CLI) for ACX7024X Routers

Value (as Displayed in the CLI)

Item in Documentation

Additional Information

Chassis

JNP7024X [ACX7024X]

Router chassis

Chassis Physical Specifications for ACX7024 and ACX7024X Routers

Routing Engine

RE-ACX-7024X

Built-in Routing Engine

FPC n

ACX7024X-FPC

The value of n is always 0.

The router does not have actual Flexible PIC Concentrator (FPC) line cards. In this case, FPC refers to the router.

PIC n

MRATE- 24xSFP28 + 4xQSFP

The value of n is always 0.

Abbreviated name of the PIC.

The router does not have physical PICs.

The built-in network ports on the front panel of the router map to logical PICs.

PSM (n)

JPSU-400W-DC-AFI

or

JPSU-400W-AC-AFI

n is a value in the range of 0–1. The value corresponds to the power supply slot number.

DC power supply module

ACX7024 and ACX7024X Power System

Fan tray (n)

ACX7024X Fan, Front to Back Airflow - AFO

The value of n is always 0.

System fan

Cooling System and Airflow in ACX7024 and ACX7024X Routers

ACX7024 and ACX7024X System Software Overview

The ACX7024 and ACX7024X runs Junos OS Evolved, which provides Layer 2 and Layer 3 switching, routing, and security services. Junos OS Evolved runs natively on Linux and has direct access to all Linux utilities and operations. It has a modular design that supports upgrades on a component-by-component basis without a system reboot. Only those components that are changed are restarted. Junos OS Evolved is easily portable, and it requires minimal effort to make it work on any platform. Junos OS Evolved has a modernized infrastructure, which ensures high availability, portability, faster innovation, and simplified upgrades.

For information about features supported on ACX Series devices, see Feature Explorer.