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.
2
Figure 1: Front View of the ACX5448 Router
g100100
2 3 4
56
1
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
g100101
21 1
2—1—Fan modulesPower supply modules (AC)
Figure 3: Rear View of the DC-Powered ACX5448 Router
g100102
2
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.
3
•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
1
67
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)
4
Figure 6: Rear View of the DC-Powered ACX5448-D Router
g100102
2
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
1
56
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.
5
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
2
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.
6
Figure 10: ESD Point on the ACX5448 Router
g100126
1
1—ESD point
Figure 11: ESD Point on the ACX5448-D and ACX5448-M Router
g100719
1
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.
7
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.
8
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)
9
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
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FRUsPorts
10
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