Cisco ASR 920 series Instruction Manual

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
1

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
2
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
3
Installing the Cisco ASR 920 Series Router
Installing the Chassis Brackets

Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
4
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
5
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
6
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
7
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
8
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
9
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
10
Installing the Cisco ASR 920 Series Router
Attaching the Cable Guides

Step 2 Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended maximum torque
is 3N-m.
Figure 8: Installing the Cable Guides (As Per the Standard Kit)
Wall Mounting the Cisco ASR 920 Series Router
To install the Cisco ASR 920 Series Router on a wall, follow the instructions in these procedures:
Attaching the Brackets to the Router for Wall-Mounting
While wall mounting the Cisco ASR 920 Series Router, always ensure that the power supplies are at the
top position.
Note
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
11
Installing the Cisco ASR 920 Series Router
Wall Mounting the Cisco ASR 920 Series Router

The figure below shows how to attach a 19-inch bracket to one side of the router. Follow the same steps to
attach the second bracket to the opposite side.
Figure 9: Attaching 19-inch Brackets for Wall Mounting
Mounting Cisco ASR 920 Series Router on the Wall
For the best support of the Cisco ASR 920 Series Router and cables, ensure the router is attached securely to
wall studs or to a firmly attached plywood mounting backboard.
Suitable for mounting on and over a concrete or other non-combustible surface only. Statement 345Warning
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
12
Installing the Cisco ASR 920 Series Router
Mounting Cisco ASR 920 Series Router on the Wall

Before mounting the router, ensure that all unused holes at the sides of the router are always protected by
screws.
Figure 10: Installing Screws in Unused Holes Before Wall Mounting the Router
Caution
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
13
Installing the Cisco ASR 920 Series Router
Mounting Cisco ASR 920 Series Router on the Wall

Mount the router with the front panel as shown in the following figure.
Figure 11: Mounting the Router on the Wall
When mounting the router vertically, ensure that the power supplies are at the top.Caution
Install the AC Power Cables
To install the AC power cables in the power supply slots:
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
14
Installing the Cisco ASR 920 Series Router
Install the AC Power Cables

SUMMARY STEPS
1. Attach the AC power retainer chord as shown in the figure below.
2. Lift the power retainer and plug in the AC power supply.
DETAILED STEPS
Step 1 Attach the AC power retainer chord as shown in the figure below.
Figure 12: Attaching the AC Power Retainer Chord
Step 2 Lift the power retainer and plug in the AC power supply.
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
15
Installing the Cisco ASR 920 Series Router
Install the AC Power Cables

Push the retainer chord towards the power supply chord to lock it in place.
Figure 13: Locking the Power Retainer Chord
Install the DC Power Supply
When installing DC power supply, use 14 AWG, 90°C wires. Always ensure that the building’s installation
for short-circuit (overcurrent) protection does not exceed 15A.
Note
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
16
Installing the Cisco ASR 920 Series Router
Install the DC Power Supply

The DC connector or terminal block has an inbuilt screw and cage nut to which a torque of 1.3 to 1.8 N-m
can be applied.
Note
Figure 14: DC Connector With Inbuilt Screw
0.27 inchesC0.97 inchesA
0.81 inchesM0.31 inchesB
To attach the DC power supplies:
SUMMARY STEPS
1. Open the DC power supply guard.
2. Attach the DC supply wires in the designated screws. See the figure below.
3. Close the DC power supply guard.
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
17
Installing the Cisco ASR 920 Series Router
Install the DC Power Supply

DETAILED STEPS
Step 1 Open the DC power supply guard.
Step 2 Attach the DC supply wires in the designated screws. See the figure below.
Figure 15: Using the DC Power Supply Guard
Figure 16: Attaching the DC Power Supply
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
18
Installing the Cisco ASR 920 Series Router
Install the DC Power Supply

Step 3 Close the DC power supply guard.
Power On the Router
After the router is either rack mounted or mounted on the wall, perform these tasks to complete the installation:
•Power on the router.
•Connect the front-panel ports. See the Connect to SFP Modules to complete the installation.
Install and Remove SFP Modules
These sections describe how to install and remove SFP modules. The modules are inserted into the SFP module
slots as depicted in the figure below. These field-replaceable modules provide interfaces.
See the Supported SFPs and PIDs for the list of SFP modules that the router supports. Each port must match
the wavelength specifications on the other end of the cable. For reliable communications, the cable must not
exceed the stipulated cable length.
Use only Cisco SFP modules on the Cisco router. Each SFP module has an internal serial EEPROM that is
encoded with security information. This encoding provides a way for Cisco to identify and validate that the
SFP module meets the requirements for the router.
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
19
Installing the Cisco ASR 920 Series Router
Power On the Router

For detailed instructions on installing, removing, and cabling the SFP module, see the SFP module
documentation.
Install SFP Modules
The figure below shows an SFP module that has a bale-clasp latch.
We strongly recommend that you do not install or remove fiber-optic SFP modules with cables attached
because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP
module. Disconnect all cables before removing or installing an SFP module.
Removing and installing an SFP module can shorten its useful life. Do not remove and insert SFP modules
more often than is absolutely necessary.
Caution
Figure 17: SFP Module with a Bale-Clasp Latch
To insert an SFP module into the module slot, follow these steps:
SUMMARY STEPS
1. Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
2. If the SFP module that you are using has the markings, use them to identify the top side of the module.
3. Align the SFP module in front of the slot opening.
4. Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear
of the slot.
5. Insert the cable connector into the SFP module:
DETAILED STEPS
Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
Some SFP modules identify the top side of the module with send (TX) and receive (RX) markings or arrows that show
the direction of the connection.
Cisco ASR 920 Series Aggregation Services Router Hardware Installation Guide
20
Installing the Cisco ASR 920 Series Router
Install SFP Modules