Cisco ASR 903 Instruction Manual

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
1

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
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack

Step 3 Repeat Step-1 and Step-2 to complete the plenum assembly on the other side of the plenum base.
Step 4 Position the air filter (A903-F2B-AIR-F) assembly on the plenum deflector. Secure the front cover using a recommended
torque of 11.5 in.-lb (1.3 N-m). See figure below.
Figure 10: Air Filter
The filter is applicable only when fans A903-FAN and A903-FAN-H are used and the filter is not applicable
for A903-FAN-E.
Note
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
11
Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack

Step 5 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire and connect
the other end of the ground wire to a suitable grounding point at your site. See figure below.
Figure 11: Attaching the Ground Lug and Wire Assembly
Dual ground screws2Dual-hole ground adapter
and dual-hole lug
1
Step 6 Position the plenum assembly to the rack and secure the cable brackets to the rack using a torque of 11.5 in.-lb (1.3 N-m).
See figure below.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
12
Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack

For a 19-inch rack installation, the rack has to have a flat
post.
Note
Figure 12: Plenum Assembly to 21-inch Rack
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
13
Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack

Figure 13: Plenum Assembly to 23-inch Rack
——
Secure screws to rack1
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
14
Installing the Cisco ASR 903 Router
Installing the Router Chassis in the Rack

Installing the Chassis in the Air Plenum
Ensure that the router is not installed in the Air Plenum while mounting it on the rack.Note
For instructions on mounting the air plenum on the rack, (see Table A-2).
Step 1 Position the chassis so that the rear of the chassis is at the front of the plenum. See the figure below.
Step 2 Slide the chassis into the plenum so that the front of the chassis is in flush with the mounting rails and brackets.
Figure 14: Cisco ASR 903 Chassis with Air Plenum
Air plenum2Cisco ASR 903 router1
Attaching the Cable Management Brackets
The router supports the following brackets:
•A903-CABLE-GUIDE
•A903-CAB-BRACKET—This bracket helps in routing the cables from the interface modules; therefore
enabling a proper cable bending radius.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
15
Installing the Cisco ASR 903 Router
Attaching the Cable Management Brackets

The mounting brackets and cable mounting brackets are assembled together. We recommend that the
brackets are installed before the chassis is installed in the Air Plenum.
Note
To install the optional cable management brackets, perform these steps:
Step 1 Position the cable management brackets against the front of the chassis and align the four screw holes, as shown in the
figure below.
Figure 15: Cable Management Bracket Installation
Figure 16: Cable Management Bracket (A903-CAB-BRACKET)
Step 2 Secure the cable management brackets with four M4 screws. The recommended maximum torque is 10 in.-lb (1.12 N-m).
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
16
Installing the Cisco ASR 903 Router
Attaching the Cable Management Brackets

Installing the Chassis Ground Connection
Before you connect the power or turn on the power to the Cisco ASR 903 Router, you must provide an adequate
chassis ground (earth) connection to your router.
This section describes how to ground the Cisco ASR 903 Router chassis. The router provides two locations
for attaching a 2-hole grounding lug according to the rack-mounting brackets you use to install the router.
The Cisco ASR 903 Router supports the following rack-mounting types:
•EIA 19-inch rack—Attach the grounding lug to the rear of the router, as shown in the figure below.
Figure 17: Attaching a Grounding Lug to the Rear of the Router
Grounding lug (19-inch EIA rack)1
•300 mm ETSI cabinet—Attach the grounding lug on the rack-mount bracket on the front of the router,
as shown in the figure below.
Figure 18: Attaching a Grounding Lug to the Rack-Mount Bracket
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
17
Installing the Cisco ASR 903 Router
Installing the Chassis Ground Connection

Grounding lug (300 mm ETSI cabinet)1
To ensure that the chassis ground connection that you provide is adequate, you need the following parts and
tools:
•Ratcheting torque screwdriver with Phillips head that exerts up to 15 in.-lb (1.69 N-m) of pressure for
attaching the ground wire to the router
•Crimping tool as specified by the ground lug manufacturer
•18 AWG copper wire for the power cord
•6 AWG or larger copper wire for the ground wire
•Wire-stripping tools appropriate to the wire you are using
Before making connections to the Cisco ASR 903 Router, ensure that you disconnect the power at the
circuit breaker. Otherwise, severe injury to you or damage to the router may occur.
Caution
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority
or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning
Use copper conductors only. Statement 1025Warning
When installing the unit, the ground connection must always be made first and disconnected last. Statement
42
Warning
This unit is to be installed in a restrictive access location and must be permanently grounded to minimum 6
AWG copper ground wire.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
18
Installing the Cisco ASR 903 Router
Installing the Chassis Ground Connection

Perform the following procedure to ground the Cisco ASR 903 Router using a 2-hole lug and the corresponding
mounting point. Most carriers require a minimum 6 AWG ground connection. Verify your carrier’s requirements
for the ground connection.
Step 1 If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch (12.7 mm ±0.5
mm) ( as shown in the figure below).
Figure 19: Stripping a Ground Wire
Step 2 Slide the open end of your 2-hole ground lug over the exposed area of the ground wire.
Step 3 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire as shown
in the figure below.
Figure 20: Crimping a Ground Lug onto the Ground Wire
Step 4 Use a Phillips head screwdriver to attach the 2-hole ground lug and wire assembly to the router with the 2 pan-head
Phillips head screws. For a 19-inch EIA rack, attach the 2-hole ground lug to the rear of the router.
Step 5 Connect the other end of the ground wire to a suitable grounding point at your site.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
19
Installing the Cisco ASR 903 Router
Installing the Chassis Ground Connection

Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco ASR 903 Router. Follow these steps to install
the fan tray in the chassis:
Step 1 Orient the fan tray so that the captive screws are on the left side of the fan tray’s front panel. The figure below shows
how to orient the fan tray.
Figure 21: Installing the Fan Tray
Step 2 Guide the fan tray into the chassis until it is fully seated.
The fans are exposed on the left side of the fan tray. Keep your fingers, clothing, and jewelry away from the
fans. Always handle the fan tray by the handle.
Caution
When installing the cabling to the RSPs, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Note
Step 3 Secure the fan tray to the chassis using the attached captive installation screws. The recommended maximum torque is
5.5 in.-lb (.62 N-m).
This completes the procedure for installing or replacing the fan tray in a Cisco ASR 903 Router.
For information about connecting cables to the fan tray alarm port, see Connecting the Fan Tray Alarm Port. For a
summary of the LEDs on the fan tray, see LED Summary. For more information about air flow guidelines, see Air Flow
Guidelines.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
20
Installing the Cisco ASR 903 Router
Installing the Fan Tray