Juniper ACX5448 Manuale utente

ACX5448, ACX5448-D, and ACX5448-M Universal Metro

Routers Quick Start Guide

IN THIS GUIDE

ACX5448, ACX5448-D, and ACX5448-M Router Description | 1

Step 1: Prepare the Site for Installing an ACX5400 Router | 7

Step 2: Install the ACX5400 Chassis in the Rack | 11

Step 3: Connect the Grounding Cable | 16

Step 4: Connect Power Cables | 18

Step 5: Connect External Devices and Cables | 25

Step 6: Perform Initial Software Configuration | 28

Safety Warnings | 32

Compliance Statements for NEBS | 33

Compliance Statements for EMC Requirements | 34

Contacting Customer Support | 35

ACX5448, ACX5448-D, and ACX5448-M Router Description

IN THIS SECTION

ACX5448 System Overview | 2

ACX5448-D System Overview | 3

ACX5448-M System Overview | 5

This Quick Start Guide contains information you need to install and configure the router quickly. For complete installation

instructions, see the ACX5448, ACX5448-D, and ACX5448-M Universal Metro Routers Hardware Guide at

https://www.juniper.net/documentation/, or scan the QR code at the bottom of the page to go directly to the router

product page.

The Juniper Networks ACX5400 Universal Metro Routers are top-of-rack routers with deep packet buffer solutions for

metro network or aggregation environments. The ACX5400 router portfolio consists of high-performance,

fixed-configuration, 1-U routers that add higher port densities, additional scalability, and improved latency to the ACX

Series. The routers have a high-throughput Packet Forwarding Engine, which provides full duplex throughput of 800 Gbps.

The 1.9 Ghz six-core Intel CPU with 32 GB of memory and two 100 GB of enterprise-grade solid-state drive (SSD) storage

enhance the performance of the ACX5400 control plane.

We ship these routers with redundant fans and redundant power supply modules (PSMs). You can order the routers with

front-to-back airflow (airflow out or AFO) or back-to-front airflow (airflow in or AFI), and with AC or DC PSMs.

The ACX5400 routers are available in three variants:

•ACX5448

•ACX5448-D

•ACX5448-M

ACX5448 System Overview

The ACX5448 router provides a system throughput of up to 800 Gbps through the following port configurations:

•Forty-eight 10-Gigabit or 1-Gigabit Ethernet ports (ports 0through 47) that support small form-factor pluggable plus

(SFP+) transceivers. These ports can also operate at 1-Gbps speed when you use 1-gigabit SFP optics.

•Four 100-Gigabit Ethernet ports (ports 48 through 51) that support quad small form-factor pluggable 28 (QSFP28)

transceivers. You can channelize these ports into four 25-Gbps interfaces using breakout cables (and channelization

configuration). These ports also support 40-Gbps speed, when you use QSFP+ optics. You can channelize these 40-Gbps

ports into four 10-Gbps interfaces using breakout cables (and channelization configuration).

Figure 1 shows the front of the ACX5448 router.

Figure 1: Front View of the ACX5448 Router

g100100

2 3 4

4—1—Console (CON) port1-Gigabit/10–Gigabit Ethernet ports (48 SFP+ or SFP ports)

5—2—1–PPS and 10–MHz GPS output ports100–Gigabit Ethernet ports (4 QSFP28 ports)

6—3—USB portManagement (MGMT) port

Figure 2 and Figure 3 present rear views of the fully configured ACX5448 routers, one with AC power and the other with

DC power.

Figure 2: Rear View of the AC-Powered ACX5448 Router

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21 1

2—1—Fan modulesPower supply modules (AC)

Figure 3: Rear View of the DC-Powered ACX5448 Router

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1 1

2—1—Fan modulesPower supply modules (DC)

ACX5448-D System Overview

The ACX5448-D router provides a system throughput of up to 800 Gbps through the following port configurations:

•Thirty-six 10-Gigabit or 1-Gigabit Ethernet ports (0through 35, mapped to CLI PIC 0) that support SFP+ transceivers.

These ports can also operate at 1-Gbps speed when you use 1-gigabit SFP optics.

•Two 100-Gigabit Ethernet ports (36 and 37, mapped to CLI PIC 1) that support QSFP28 transceivers. You can channelize

each of these ports into four 25-Gbps interfaces using breakout cables (and channelization configuration). These ports

also support 40-Gbps speed, when you use QSFP+ optics. You can then channelize each of these 40-Gbps ports into

four 10-Gbps interfaces using breakout cables (and channelization configuration).

•Two 200-Gigabit Ethernet ports (38 and 39, mapped to logical PIC 2) that support 200-gigabit CFP2-DCO transceivers.

NOTE: One QSFP28 port (port 36) and one CFP2-DCO port (port 38) can operate as multiplexer ports.

Figure 4 shows the front of the ACX5448-D router.

Figure 4: Front View of the ACX5448-D Router

g100500

32 4 5

5—1—Console (CON) port1- Gigabit/10–Gigabit Ethernet ports (36 SFP+ or SFP ports)

6—2—PPS and 10M GPS output ports100–Gigabit Ethernet ports (2 QSFP28 ports)

7—3—USB port100–Gigabit/200-Gigabit Ethernet ports (2 CFP2-DCO ports)

4—Management (MGMT) port

Figure 5 and Figure 6 present rear views of the fully configured ACX5448-D routers, one with AC power and the other

with DC power.

Figure 5: Rear View of the AC-Powered ACX5448-D Router

g100701

21 1

2—1—Fan modulesPower supply modules (AC)

Figure 6: Rear View of the DC-Powered ACX5448-D Router

g100102

1 1

2—1—Fan modulesPower supply modules (DC)

ACX5448-M System Overview

The ACX5448-M router provides a system throughput of up to 800 Gbps through the following port configuration:

•Forty-four 10-Gigabit Ethernet ports (0through 43) that support SFP+ transceivers. These ports can also operate at

1-Gbps speed when you use 1-gigabit SFP optics.

•Six 100-Gigabit Ethernet ports (44 through 49) that support QSFP28 transceivers. You can channelize each of these

ports into four 25-Gbps interfaces using breakout cable (and channelization configuration). These ports also support

40-Gbps speed, when you use QSFP+ optics. You can then channelize each of these 40-Gbps ports into four 10-Gbps

interfaces using breakout cable (and channelization configuration).

NOTE: The ACX5448-M routers support advanced security capabilities such as Media Access Control Security

(MACsec). MACsec is supported only on the forty-four 10-Gigabit or 1-Gigabit Ethernet ports.

Figure 7 shows the front of the ACX5448-M router.

Figure 7: Front View of the ACX5448-M Router

g100700

2 3 4

4—1—Console (CON) port1-Gigabit/10–Gigabit Ethernet ports (44 SFP+ or SFP ports)

5—2—PPS and 10M GPS output ports100–Gigabit Ethernet ports (6 QSFP28 ports)

6—3—USB portManagement (MGMT) port

Figure 8 and Figure 9 present rear views of the fully configured ACX5448-M routers, one with AC power and the other

with DC power.

Figure 8: Rear View of the AC-Powered ACX5448-M Router

g100701

21 1

2—1—Fan modulesPower supply modules (AC)

Figure 9: Rear View of the DC-Powered ACX5448-M Router

g100102

1 1

2—1—Fan modulesPower supply modules (DC)

The electrostatic discharge (ESD) point on the router is located on the rear of the chassis. Figure 10 shows the ESD point

on the ACX5448 router and Figure 11 shows the ESD point on the ACX5448-D and ACX5448-M routers.

CAUTION: Before removing or installing components, attach an ESD strap to an ESD point, and wrap

and fasten the other end of the strap around your bare wrist. Failure to use an ESD strap can result

in damage to the hardware components.

WARNING: This Quick Start contains a summary of safety warnings in “Safety Warnings” on page 32.

For a complete list of warnings for this router, including translations, see the ACX5448 Universal Metro

Router Hardware Guide.

Figure 10: ESD Point on the ACX5448 Router

g100126

1—ESD point

Figure 11: ESD Point on the ACX5448-D and ACX5448-M Router

g100719

1—ESD point

Step 1: Prepare the Site for Installing an ACX5400 Router

IN THIS SECTION

Rack Requirements for ACX5400 Routers | 7

Router Clearance Requirements | 8

Router Cooling and Airflow Requirements | 10

Tools Required to Prepare the ACX5400 Router for Installation | 11

Rack Requirements for ACX5400 Routers

The ACX5400 routers are designed to be installed on four-post racks.

Table 1 provides the rack requirements and specifications for ACX5400 routers.

Table 1: Rack Requirements for ACX5400 Routers

GuidelinesRack Requirement

Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U increments

(1.75 in. or 4.45 cm) and that the rack meets the size and strength requirements to support the

weight.

A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment

(document number EIA-310–D) published by the Electronics Industry Association.

Rack type

Ensure that the holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm) so that

the router can be mounted in any rack that provides holes spaced at that distance.

Mounting bracket

hole spacing

•Ensure that the rack complies with the standards for a 19-in. rack as defined in Cabinets,

Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the

Electronics Industry Association.

•Use an 800-mm rack as defined in the four-part Equipment Engineering (EE) European

telecommunications standard for equipment practice (document numbers ETS 300 119-1

through 119-4) published by the European Telecommunications Standards Institute

(http://www.etsi.org).

The horizontal spacing between the rails in a rack that complies with this standard is usually

wider than the device's mounting brackets, which measure 19 in. (48.26 cm) from outer edge

to outer edge. Use approved wing devices to narrow the opening between the rails as required.

•Ensure that the rack rails are spaced widely enough to accommodate the router chassis’

external dimensions. The outer edges of the front-mounting brackets extend the width to

19 in. (48.26 cm).

•Ensure that for four-post installations, the front and rear rack rails are spaced between 23.6

in. (60 cm) and 36 in. (91.4 cm) front-to-back.

•Ensure that the rack is strong enough to support the weight of the router. The fully configured

ACX5448 router weighs about 22.48 lb (10.2 kg), the ACX5448-D router weighs 23.14 lb

(10.5 kg), and the ACX5448-M router weighs 26.12 lb (11.85 kg).

•Ensure that the spacing of rails and adjacent racks allows for proper clearance around the

router and rack.

Rack size and

strength

•Secure the rack to the building structure.

•If earthquakes are a possibility in your geographical area, secure the rack to the floor.

•Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum stability.

Rack connection to

building structure

Router Clearance Requirements

For the cooling system to function properly, the airflow around the chassis must be unrestricted. You must allow sufficient

clearance around the installed chassis for cooling and maintenance.

If you are mounting an ACX5400 in a rack with other equipment, ensure that the exhaust from the other equipment does

not blow into the intake vents of the ACX5400 chassis.

For service personnel to remove and install hardware components, and to accommodate the interface and power cable

bend radius, there must be adequate space at the front and rear of the router. Allow at least 24 in. (61 cm) of space both

at the front and the rear of the router. See Figure 12 for clearance requirements in ACX5448 and ACX5448-D routers

and Figure 13 for clearance requirements in ACX5448-M routers.

Figure 12: Clearance Requirements for Airflow and Hardware Maintenance for ACX5448 and ACX5448-D Routers

g100124

21.81 in.

( 55.41 cm)

19 in.

(48.2 cm)

17.26 in.

(43.84 cm)

Ports FRUs

24 in.

(61 cm)

Clearance required

for maintenance

24.0 in.

(61 cm)

Clearance required

for maintenance

20 .29 in.

( 51.53 cm)

Figure 13: Clearance Requirements for Airflow and Hardware Maintenance for ACX5448-M Routers

g100706

25.50 in.

(64.75 cm)

19 in.

(48.2 cm)

17.26 in.

(43.84 cm)

Ports FRUs

24 in.

(61 cm)

Clearance required

for maintenance

24.0 in.

(61 cm)

Clearance required

for maintenance

24.0 in.

(61.0 cm)

Router Cooling and Airflow Requirements

•The ACX5400 routers are available with either front-to-back airflow (airflow out, ports-to-FRUs, or AFO), or back-to-front

airflow (airflow in, FRUs-to-ports, or AFI). In AFO models, the air is pulled through the front of the chassis toward the

fan modules, from where it is exhausted out of the chassis. In AFI models, the air is pulled through the fan modules and

toward the front of the chassis, from where it is exhausted out of the chassis. The fan modules and the power supply

modules (PSMs) are available in both AFO and AFI variants. Figure 14 and Figure 15 show the airflow through the two

router models.

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

•The PSMs are self-cooling and are located in the rear of the router. The exhaust for the PSMs are also located on the

rear of the chassis.

•The rack or cabinet must have an adequate supply of cooling air.

Figure 14: Air Out Airflow (AFO) Through the ACX5400 Chassis

g100525

FRUsPorts

Figure 15: Air In Airflow (AFI) Through the ACX5400 Chassis

g100524

FRUsPorts

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