Juniper ACX710 Manuale utente

ACX710 Universal Metro Router Quick Start Guide

IN THIS GUIDE

ACX710 Description | 1

Step 1: Prepare the Site for ACX710 Installation | 2

Step 2: Install the ACX710 Chassis in the Rack | 5

Step 3: Connect the Grounding Cable | 7

Step 4: Connect to Power | 8

Step 5: Connect External Devices and Cables | 10

Step 6: Perform Initial Software Configuration | 12

Safety Warnings | 16

Compliance Statements for EMC Requirements | 18

Contacting Customer Support | 19

ACX710 Description

This Quick Start Guide contains information that you need to install and configure an ACX710 router quickly. For complete

installation instructions, see the ACX710 Universal Metro Router Hardware Guide at https://www.juniper.net/documentation/.

The ACX710 router provides an aggregation solution that is cost-effective and compact, and that supports emerging

deployments such as segment routing and Ethernet VPN (EVPN). The ACX710 includes support for numerous features

such as modern network management using NETCONF and YANG, and precise synchronization that helps address the

increasing demands of high-speed networks.

The ACX710 router is a 1-U compact and fixed-configuration model with high-density 1GbE, 10GbE, and 100GbE ports.

ACX710 routers provide full-duplex throughput of 320 Gbps and 24 Gbit DRAM packet buffer.

We ship these routers with a DC power supply module that has dual power feeds and a fan tray with five high-performance

fans that can effectively cool the chassis.

The port panel of the ACX710 router has the following port configurations:

•Twenty-four 10GbE or 1GbE ports (ports 0through 23) that operate at 10-Gbps speed when you use small form-factor

pluggable plus (SFP+) transceivers or at 1-Gbps speed when you use small form-factor pluggable (SFP) optics. Ports 0

through 15 also support 1000-Mbps speed when you use tri-rate SFP optics. Ports 16 through 23 support 100-Mbps

and 1000-Mbps speeds when you use tri-rate SFP optics.

•Four 100GbE ports (ports 0through 3) 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 quad small form-factor pluggable plus (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 panel of an ACX710 router.

Figure 1: ACX710 Router Front Panel

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4 5

2 31 2

9 8

6 7

4—1—TOD (RJ-45), I/O(RJ-45), LMT (RJ-45), and BITS (RJ-48) portsPower supply unit

5—2—USB port1GbE/10GbE ports (24 SFP or SFP+ ports)

6—3—Console port40GbE/100GbE ports (4 QSFP+ or QSFP28 ports)

Figure 2 shows the rear view of an ACX710 router.

Figure 2: Rear View of the ACX710 Router

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1—Fan tray

Step 1: Prepare the Site for ACX710 Installation

IN THIS SECTION

Rack Requirements for ACX710 Routers | 3

Router Clearance Requirements | 4

Router Cooling and Airflow Requirements | 4

Tools and Parts Required to Prepare the ACX710 Router for Installation | 5

Rack Requirements for ACX710 Routers

The ACX710 routers are designed to be installed on four-post racks.

Table 1 provides the rack requirements and specifications for ACX710 routers.

Table 1: Rack Requirements for ACX710 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 ensure that the rack meets the size and strength requirements to

support the weight of the router.

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 external dimensions

of the router chassis. 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. A fully configured

ACX710 router weighs about 17.64 lb (8 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 and to the 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 ACX710 in a rack with other equipment, ensure that the exhaust from the other equipment does

not blow into the intake vents of the ACX710 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 rear of the router. See Figure 3 for the clearance requirements for ACX710 routers.

Figure 3: Clearance Requirements for Airflow and Hardware Maintenance for ACX710 Routers

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Mounting bracket

Clearance required

for maintenance

12.4 in.

31.5 cm

Clearance required

for maintenance

Front

(Ports) Rear

19.0 in.

(48.26 cm)

17.36 in.

(44.08 cm)

24 in. (61 cm) 24 in. (61 cm)

Router Cooling and Airflow Requirements

•In ACX710 routers, cool air is pulled through the front of the chassis towards the rear fan tray, and hot air is exhausted

out of the chassis through the rear. Figure 4 shows the airflow through the ACX710 router.

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

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

Figure 4: Airflow Through the ACX710 Chassis

Front Rear

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Tools and Parts Required to Prepare the ACX710 Router for Installation

•19-in. four-post rack with fasteners (provided)

•ESD grounding strap (not provided).

•One pair of front-mounting rails (provided)

•Screws to secure the chassis to the rack (not provided).

•Appropriate screwdriver for the mounting screws (not provided).

•Two DC power cords with plugs appropriate for your geographical location (provided).

•One grounding cable (provided).

•RJ-45 cable and RJ-45 to DB-9 serial port adapter (not provided).

•Management host, such as a PC or laptop, with a serial port (not provided).

Step 2: Install the ACX710 Chassis in the Rack

To install the router in a four-post rack:

1. Position the router in front of the rack.

2. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap

to a site ESD point.

3. Align the holes in the front-mounting rails with the holes on the side of the chassis (see Figure 5).

Figure 5: Install the Mounting Rails on an ACX710 Router

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4. Using a Phillips (+) number 2 screwdriver, secure the mounting rails to the chassis using the mounting screws.

5. With one person on each side, hold on to the bottom of the chassis, and carefully lift the chassis so that the mounting

rails are aligned with the rack rails.

6. Carefully slide the chassis with the rails attached on to the rack rails (see Figure 6).

Figure 6: Install the ACX710 Router in a Four-Post Rack

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7. Install mounting screws into each of the front-mounting bracket holes aligned with the rack, starting from the bottom,

and tighten the screws.

8. Align the holes in the cable bar with the holes at the top of the mounting bracket, and tighten the screws to attach the

cable bar.

Figure 7: Install the Cable Bar

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9. Visually inspect the alignment of the chassis.

If you’ve installed the chassis properly in the rack, all the mounting screws on one side of the rack are aligned with the

mounting screws on the opposite side, and the router is level. Figure 8 shows the router fully secured and installed in

a four-post rack.

Figure 8: ACX710 Router Installed in a Four-Post Rack

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Step 3: Connect the Grounding Cable

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the router must be

adequately grounded before power is connected.

You need a protective earthing terminal bracket for connecting the chassis to earth ground. This two-holed bracket is

attached on the side of the chassis through the mounting rail, and provides a protective earthing terminal for the router.

The grounding points are in the form of studs that are sized for M6 screws. (You need to provide these screws with

integrated washers as we do not ship them in the accessory kit).

To ground the ACX710 router:

1. Verify that a licensed electrician has attached the cable lug provided with the router to the grounding cable.

2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the other end of the strap to

an approved site ESD grounding point. See the instructions for your site.

3. Ensure that all grounding surfaces are clean and are brought to a bright finish before you make grounding connections.

4. Connect the grounding cable to a proper earth ground.

5. Place the grounding cable lug over the grounding points on the side of the chassis (see Figure 9).

Figure 9: Connect the Grounding Cable to the ACX710 Router

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6. Secure the grounding cable lug with the screws.

7. Dress the grounding cable, and verify that it does not touch or block access to router components, and that it does

not drape where people could trip on it.

Step 4: Connect to Power

The ACX710 router supports a dual feed DC power supply module. Table 2 describes the DC power specifications for

ACX710 routers. For the 2-pole DC circuit breaker, the recommended maximum value is 32 A and the minimum value is

8 A.

Table 2: DC Power Specifications for ACX710 Routers

SpecificationsItem

-48 V DCNominal input voltage

-38 V DC to -60 V DCInput voltage range

6 AMaximum current

150 WTypical power consumption

225 WMaximum power consumption

Before you begin connecting DC power to the router:

•Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention

of Electrostatic Discharge Damage).

•Ensure that you have connected the router chassis to earth ground.

CAUTION: Before you connect power to the router, a licensed electrician must attach a cable lug

to the grounding and power cables that you supply. A cable with an incorrectly attached lug can

damage the router (for example, by causing a short circuit).

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation,

you must connect the chassis to earth ground before you connect the chassis to power. For

installations that require a separate grounding conductor to the chassis, use the protective earthing

terminal on the router chassis to connect to the earth ground.

•Ensure that you have the following parts and tools available:

•DC power source cables

•Phillips (+) screwdriver, number 2 (not provided)

•Multimeter (not provided)

To connect DC power to an ACX710 router:

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap

to a site ESD point.

2. Power off the DC input appliance inlet on the source power supply.

3. Connect the power cord to the power source outlet.

4. Insert the power cord firmly into the inlet.

Figure 10: Connect a DC Power Cord to an ACX710 Router

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5. Route the power cord appropriately. Verify that the power cord does not block the air exhaust or access to router

components, or drape where people could trip over it.

6. Power on the source power supply.

Step 5: Connect External Devices and Cables

IN THIS SECTION

Connect an ACX710 Router to a Network for Out-of-Band Management | 10

Connect an ACX710 Router to a Management Console | 11

All the connections to the router are made through the front panel.

Connect an ACX710 Router to a Network for Out-of-Band Management

You can monitor and manage an ACX710 router by using a dedicated management channel. Use the management port

(LMT) to connect the ACX710 router to a network for out-of-band management.

Ensure that you have an Ethernet cable that has an RJ-45 connector at either end. Figure 11 shows the RJ-45 connector

of the Ethernet cable.

Figure 11: RJ-45 Connector on an Ethernet Cable

NOTE: You cannot use the management ports to perform the initial configuration of an ACX710 router. You

must configure the management ports before you can successfully connect to the ACX710 router using these

ports. See Perform Initial Software Configuration for the ACX710 Routers.

Ensure that you have an appropriate cable available. See ACX710 Network Cable and Transceiver Planning.

To connect an ACX710 router to a network for out-of-band management (see Figure 12):

1. Connect one end of the Ethernet cable to one of the management ports.

2. Connect the other end of the cable to the management PC (see Figure 12).

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