Cisco ASR 903 Manuale di istruzioni
Installing the Cisco ASR 903 Router
This chapter describes how to install the Cisco ASR 903 Router.
•Prerequisites, page 1
•Installing the Router in a Rack, page 1
•Installing the Chassis Ground Connection, page 17
•Installing the Fan Tray, page 20
•RSP Installation, page 23
•Interface Module Installation, page 26
•Installing the Power Supply, page 31
•Connecting the Cisco ASR 903 Router to the Network, page 44
Prerequisites
Before installing the Cisco ASR 903 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)
•Unpacking and inspecting the Cisco ASR 903 Router
•Gathering the tools and test equipment required to properly install the Cisco ASR 903 Router
For more instructions on how to prepare for the installation of the Cisco ASR 903 Router, see Preparing for
Installation.
Installing the Router in a Rack
The following sections describe how to install the Cisco ASR 903 Router in a rack:
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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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:
Step 1 Remove the rack-mount brackets from the accessory kit and position them beside the router chassis. The figure below
hows how to attach the brackets on the Cisco ASR 903 Router for a 19-inch EIA rack.
Figure 1: Attaching Mounting Brackets for a 19-inch EIA Rack
The figure below shows how to attach the brackets on the Cisco ASR 903 Router for a 300 mm ETSI cabinet.
Figure 2: Attaching Mounting Brackets for a 300 mm ETSI Cabinet
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 28 in.-lb (3.16 N-m).
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Chassis Brackets
The A903-FAN-E fan tray with filter (A903-FAN-F) cannot be mounted using the mounting screws that are supported
for A903-FAN fan tray. This is not an issue with the FAN tray filter blank panel (A903-FAN-F-B). We recommend that
you use the short screws provided in the following rack mount kits to avoid interference of the air filter during rack
mounting and while replacing the fan tray (A903-FAN) with the fan tray (A903-FAN-E):
•19”rack mount kit (A903-RCKMT-19IN)
•ETSI rack mount kit (A903-RCKMT-ETSI)
What to Do Next
Repeat Step 2 and Step 3 for the other bracket.
Installing the Router Chassis in the Rack
The procedures in this section apply to both horizontal and vertical mounting of the router in a rack.
To install the router chassis in the equipment rack, perform these 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 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
Do not use interface module and power supply ejector handles to lift the chassis; using the handles to lift the
chassis can deform or damage the handles.
Caution
Figure 3: Installing the Chassis in a 19-inch EIA Rack
Figure 4: Installing the Chassis to support the Japanese JIS Rack Standard
Figure 5: Installing the Chassis in a 300 mm ETSI Cabinet
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
Figure 6: Vertical Mounting Installation
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
During vertical installation of the router, ensure that the equipment is mounted only on concrete or other
non-combustible surfaces.
Note
Step 3 Install the 8 or 12 (4 or 6 per side) 12-24 x 3/4-inch or 10-32 x 3/4-inch 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.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
Following steps help you to install the plenum assembly irrespective of the chassis and rack size.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
The 19-inches bracket is an integral part of the plenum base. Ensure to select the 21-inches or 23-inches
adapter for your plenum based on your rack size.
Note
Figure 7: Different Adapters
Step 1 Position the air baffle and the side plate to the plenum. Secure the air baffle and the side plate using a maximum torque
of 11.5 in.-lb (1.3 N-m). See figure below.
Figure 8: Securing the Air Baffle Tray
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
Plenum base3Air baffle1
Secure screw to Plenum base4Side plate2
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
Step 2 Secure the air baffle using a maximum torque of 11.5 in.-lb (1.3 N-m). See figure below.
Figure 9: Securing the Side Plate
——
Securing side plate to
plenum base
1
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack
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