ACX7024 System Overview

ACX7024 Hardware Overview

The Juniper Networks® ACX7024 Cloud Metro router is a high-performance access router that addresses the growing demands of metro applications. It has a compact 1-U form factor, a temperature-hardened design, and advanced timing capabilities. The ACX7024 is well suited to support Ethernet business services, residential access, and 5G mobile deployments.

The ACX7024 provides 1-Gigabit Ethernet (GbE) through 100GbE port flexibility and a switching capacity of 360 Gbps. It runs Junos OS Evolved and provides several capabilities that include support for the latest protocol and traffic engineering technologies, enhanced security, and precision timing for mobile backhaul applications.

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.

We ship the ACX7024 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
Benefits of ACX7024 Routers

Components on the Front and Rear Panels of an ACX7024 Router

Figure 2 shows the front view of an AC-powered ACX7024 Router.

Figure 2: 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 3 shows the front view of a DC-powered ACX7024 router.

Figure 3: 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 4 shows the rear view of an ACX7024 router.

Figure 4: Rear View of an ACX7024 Router

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Six system fans

Benefits of ACX7024 Routers

Compact and hardened form factor—Has a temperature-hardened and a compact 1-U form factor that enables you to use it in a wide variety of environmental deployments. You can use the ACX7024 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.
Automation and programmability—Powered by the Junos OS Evolved cloud-optimized operating system and Juniper Paragon Automation to enable you to quickly deploy new services, automate network operations, and maintain high-quality network services.

ACX7024 Router Models

The ACX7024 routers are available with 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)

Field-Replaceable Units in ACX7024 Routers

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

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 Router Components and Functionality

The following hardware components provide redundancy on ACX7024 routers:

Power supply modules (PSMs)—You can install two PSMs on ACX7024 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 router has six system fans that provide redundancy for cooling. If a system fan fails, a chassis alarm is raised. The router continues to operate with one failed fan according to GR-3108 specifications.

ACX7024 Routers Hardware and CLI Terminology Mapping

Table 2 describes the hardware terms used in ACX7024 router documentation and the corresponding terms used in the Junos OS CLI.

Table 2: CLI Equivalents of Terms Used in Documentation for ACX7024 Routers
Hardware Item (as Displayed in the CLI)	Description (as Displayed in the CLI)	Value (as Displayed in the CLI)	Item in Documentation	Additional Information
`Chassis`	`JNP7024 [ACX7024]`	–	Router chassis	Chassis Physical Specifications for ACX7024 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`	`n` is a value in the range of 0–1. The value corresponds to the power supply slot number.	DC power supply module	ACX7024 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 Routers

ACX7024 System Software Overview

The ACX7024 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.

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