Cisco ASR 920 series Manuale di istruzioni

Installing the Cisco ASR 920 Series Router

This chapter describes how to install the Cisco ASR 920 Series Router and includes the following sections:

•Prerequisites, page 1

•Installing the Router in a Rack, page 2

•Wall Mounting the Cisco ASR 920 Series Router, page 11

•Install the AC Power Cables, page 14

•Install the DC Power Supply, page 16

•Install and Remove SFP Modules, page 19

•Connect to the 10/100/1000 Ports, page 23

•Install the Chassis Ground Connection, page 25

•Power Connection Guidelines, page 28

•Connect the Chassis to the Network, page 31

Prerequisites

Before installing the Cisco ASR 920 Series Router, it is important to prepare for the installation by:

•Preparing the site (site planning) and reviewing the installation plans or method of procedures (MOP).

See “Site Planning”section on page 2-9 .

•Unpacking and inspecting the Cisco ASR 920 Series Router. See “Receiving the Cisco ASR 920 Series

Router”section on page 2-20 .

•Gathering the tools and test equipment required to properly install the Cisco ASR 920 Series Router.

See “Tools and Equipment”section on page 2-21 .

For more instructions on how to prepare for the installation of the Cisco ASR 920 Series Router, see Chapter

2, “Preparing for Installation.”

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Router in a Rack

The following sections describe how to install the Cisco ASR 920 Series Router in a rack. The procedures in

this section apply to both horizontal and vertical mounting of the router in a rack:

Installing the Chassis Brackets

The chassis is shipped with mounting brackets that can be installed on the front or rear of the chassis. To

install the brackets on the front of the chassis, perform these steps:

SUMMARY STEPS

1. Remove the rack-mount brackets from the accessory kit and position them beside the router chassis.

2. Position one of the brackets against the chassis side, and align the screw holes.

3. Secure the bracket to the chassis with the screws removed when performing Step 1 . The recommended

maximum torque is 10 in.-lb.

4. Repeat Step 2 and Step 3 for the other bracket.

DETAILED STEPS

Step 1 Remove the rack-mount brackets from the accessory kit and position them beside the router chassis.

The figure below shows how to attach the brackets at the front, middle, and rear positions on the Cisco ASR 920 Series

Router for a 19-inch EIA rack.

Figure 1: Attaching Mounting Brackets for a 19-inch EIA Rack (Front, Middle, and Rear Positions)

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Router in a Rack

Figure 2: Shows how to attach the brackets on the Cisco ASR 920 Series Router for a 23-inch cabinet.

Figure 3: Attaching Mounting Brackets for a 23-inch Cabinet (Front, Middle, and Rear Positions)

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Chassis Brackets

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Chassis Brackets

Figure 4: Attaching Mounting Brackets for a 300 mm ETSI Cabinet (Front, Middle, and Rear Positions)

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Chassis Brackets

Step 2 Position one of the brackets against the chassis side, and align the screw holes.

Step 3 Secure the bracket to the chassis with the screws removed when performing Step 1 . The recommended maximum torque

is 10 in.-lb.

Step 4 Repeat Step 2 and Step 3 for the other bracket.

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Chassis Brackets

Installing the Router Chassis in the Rack

Ensure adequate air flow when mounting the router in a rack. For more information, see the “Air Flow

Guidelines”section on page 11 .

Note

Install the cable guides before installing the router in a 19-inch EIA rack. See Attaching the Cable Guides.Note

To install the router chassis in the equipment rack, perform these steps:

SUMMARY STEPS

1. Position the chassis in the rack as follows:

2. Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment

rack.

3. Install the four M6x12mm zinc-plated steel screws through the holes in the bracket and into the threaded

holes in the equipment rack posts.

4. Use a tape measure and level to verify that the chassis is installed straight and level.

DETAILED STEPS

Step 1 Position the chassis in the rack as follows:

•If the front of the chassis (front panel) is at the front of the rack, insert the rear of the chassis between the mounting

posts.

•If the rear of the chassis is at the front of the rack, insert the front of the chassis between the mounting posts.

Step 2 Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment rack.

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Installing the Router Chassis in the Rack

The following figure shows how to install the Cisco ASR 920 Series Router in a 19-inch EIA rack.

Figure 5: Installing the Chassis in a 19-inch EIA Rack

Step 3 Install the four M6x12mm zinc-plated steel screws through the holes in the bracket and into the threaded holes in the

equipment rack posts.

Step 4 Use a tape measure and level to verify that the chassis is installed straight and level.

Attaching the Cable Guides

The Cisco ASR 920 Series Router supports the following cable guides:

•A920-CBL-GUIDE (left and right)—help in routing the cables from all components on the front panel

thereby enabling a proper cable-bending radius.

If the chassis is mounted using 19-inch brackets, you must assemble the cable guides before installing the

chassis on the rack.

Note

To install the cable guides, perform these steps:

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Attaching the Cable Guides

SUMMARY STEPS

1. Position the cable guide-left and cable guide-right against the front of the chassis and align the four screw

holes, as shown in the fgure below.

2. Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended

maximum torque is 3N-m.

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Attaching the Cable Guides

DETAILED STEPS

Step 1 Position the cable guide-left and cable guide-right against the front of the chassis and align the four screw holes, as shown

in the fgure below.

Figure 6: Cable Guide Installation For 19-inch Rack Brackets

Figure 7: Cable Guide Installation For ETSI Rack Brackets

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide

Installing the Cisco ASR 920 Series Router

Attaching the Cable Guides

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