Cisco ASR 920-24SZ-IM Instruction Manual

Installing the Router
This chapter describes how to install the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M
Router.
•Prerequisites, on page 1
•Installing the Router in a Rack, on page 1
•Wall Mounting the Routers, on page 11
•Installing and Removing the Interface Module, on page 14
•Installing and Removing the Fan Tray, on page 18
•Installing the Power Supply, on page 22
•Installing and Removing SFP Modules, on page 34
•Connecting to the 10/100/1000 Ports, on page 38
•Installing the Chassis Ground Connection, on page 40
•Connecting a Router to the Network, on page 44
Prerequisites
Before installing the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M 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.
• Unpacking and inspecting the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router.
See Receiving the Router section.
• Gathering the tools and test equipment required to properly install the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router. See Tools and Equipment section.
For more instructions on how to prepare for the installation of the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router, see Chapter 2, Preparing for Installation.
Installing the Router in a Rack
The procedures in this section apply to both horizontal and vertical mounting of the router in a rack.
Installing the Router
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:
Procedure
Step 1 Remove the rack-mount brackets from the accessory kit and position them beside the router chassis.
Step 2 Position one of the brackets against the chassis side, and align the screw holes.
19-inch EIA Rack
The following figures show how to attach the brackets at the front, middle, and rear positions on the Cisco
ASR-920-24SZ-IM Router for a 19-inch EIA rack.
Figure 1: Attaching Mounting Brackets to Cisco ASR-920-24SZ-IM Router for a 19-inch EIA Rack (Front, Middle, and Rear Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

The following figures show how to attach the brackets at the front, middle, and rear positions on the Cisco
ASR-920-24SZ-M, ASR-920-24TZ-M Router for a 19-inch EIA rack.
Figure 2: Attaching Mounting Brackets to Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router for a 19-inch EIA Rack (Front, Middle, and
Rear Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

23-inch Rack
The following figures show how to attach the brackets on the Cisco ASR-920-24SZ-IM Router for a 23-inch
rack.
Figure 3: Attaching Mounting Brackets to Cisco ASR-920-24SZ-IM Router for a 23-inch Rack (Front, Middle, and Rear Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

The following figures show how to attach the brackets on the Cisco ASR-920-24SZ-M, ASR-920-24TZ-M
Router for a 23-inch rack.
Figure 4: Attaching Mounting Brackets to Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router for a 23-inch Rack (Front, Middle, and Rear
Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

300-mm ETSI Rack
The following figures show how to attach the brackets on the Cisco ASR-920-24SZ-IM Router for a 300 mm
ETSI rack.
Figure 5: Attaching Mounting Brackets to Cisco ASR-920-24SZ-IM Router for a 300 mm ETSI Rack (Front, Middle, and Rear Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

The following figures show how to attach the brackets on the Cisco ASR-920-24SZ-M, ASR-920-24TZ-M
Router for a 300 mm ETSI rack.
Figure 6: Attaching Mounting Brackets to Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router for a 300 mm ETSI Rack (Front, Middle, and
Rear Positions)
Installing the Router
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Installing the Router
Installing the Chassis Brackets

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 3 for the other bracket.
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.
Note
Install the cable guides before installing the router in a 19-inch EIA rack. See Attaching the Cable Guides
section.
Note
To install the router chassis in the equipment rack, perform these steps:
Procedure
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.
Installing the Router
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Installing the Router
Installing the Router Chassis in the Rack

Step 2 Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment
rack.
The following figures show how to install the Cisco ASR-920-24SZ-IM Router in a 19-inch EIA rack.
Figure 7: Installing the Cisco ASR-920-24SZ-IM Router in a 19-inch EIA Rack
Figure 8: Installing the Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router in a 19-inch EIA Rac
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.
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Installing the Router
Installing the Router Chassis in the Rack

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-920-24SZ-IM 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:
Procedure
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 figure for 19-inch rack and in the figure for other racks using standard kit.
Figure 9: Cable Guide Installation On Cisco ASR-920-24SZ-IM Router For 19-inch Rack Brackets
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Installing the Router
Attaching the Cable Guides

Figure 10: Installing the Cable Guides on Cisco ASR-920-24SZ-IM Router (As Per the Standard Kit)
Step 2 Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended
maximum torque is 3N-m.
Wall Mounting the Routers
This section shows the procedures to install the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router on a wall.
Attaching the Brackets to the Router for Wall-Mounting
The following figure shows how to attach a 19-inch bracket to the Cisco ASR-920-24SZ-M, ASR-920-24TZ-M
Router.
Installing the Router
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Installing the Router
Wall Mounting the Routers

Figure 11: Attaching 19-inch Brackets on Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router for Wall Mounting
Mounting Routers on the Wall
For the best support of the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M 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 345
Warning
Installing the Router
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Installing the Router
Mounting Routers on the Wall

Note
Procedure
Step 1 Mount the router with the front panel as shown in the following figures.
The following figures show the wall installation of Cisco ASR-920-24SZ-IM Router and the wall installation
of Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router.
Figure 12: Mounting the Cisco ASR-920-24SZ-IM Router on the Wall
Drip tray for Cisco ASR-920-24SZ-IM Router1
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Installing the Router
Mounting Routers on the Wall

Figure 13: Mounting the Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router on the Wall
When mounting the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router
vertically, ensure that the power supplies are at the bottom.
Caution
When mounting the ASR-920-24SZ-1M to a wall, you must install the drip tray (Cisco part number
700-47267-01) as shown below to meet IEC 60950-1 product safety requirements.
Caution
To install the drip tray for Cisco ASR-920-24SZ-IM Router, complete the following steps:
Step 2 Place the drip tray below the router as shown in the figure above.
Step 3 Tighten the four screws to affix the drip tray to the wall.
Installing and Removing the Interface Module
The sections describe the installation and removal of interface module on the Cisco ASR-920-24SZ-IM Router.
Installing the Router
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Installing the Router
Installing and Removing the Interface Module

Installing the Interface Module
Before installing the interface module, read the Activating or Deactivating Interface Module section in the
Cisco ASR 920 Series Aggregation Services Router Configuration Guide.
Note
Procedure
Step 1 Before inserting an interface module, make sure that the chassis is grounded.
Step 2 If present, remove the blank filler plate covering the interface module slot. To remove, pull the blank filler
plate completely out of the router slot using the captive screws.
Step 3 To insert the interface module, carefully align the edges of the interface module between the upper and lower
edges of the interface module slot in the router.
Step 4 Carefully slide the interface module into the router slot until the interface module makes contact with the
backplane. The following figure shows how to install the interface module on Cisco ASR-920-24SZ-IM
Router.
Figure 14: Inserting an Interface Module on Cisco ASR-920-24SZ-IM Router
Installing the Router
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Installing the Router
Installing the Interface Module

Step 5 Tighten the locking thumbscrews on both sides of the interface module. The recommended maximum torque
is 5.5 in.-lb (.62 N-m).
Step 6 Connect all the cables to each interface module.
What to do next
Do not use interface module or power supply ejector handles to lift the chassis; using these handles to lift the
chassis can deform or damage the handles.
Caution
Removing the Interface Module
Before removing the interface module, read the Activating or Deactivating Interface Module section in the
Cisco ASR 920 Series Aggregation Services Router Configuration Guide.
Note
Procedure
Step 1 To remove an interface module, disconnect all the cables from each interface module.
Step 2 Loosen the locking thumbscrews on both sides of the interface module.
Step 3 Slide the interface module out of the router slot by pulling on the handles.If you are removing a blank filler
plate, pull the blank filler plate completely out of the router slot using the captive screws.
If the interface module slot is to remain empty, install a blank filler plate (Cisco part number
800-35323-01) over the opening, and secure it with captive installation screws.
Note
Installing the Router
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Installing the Router
Removing the Interface Module

Figure 15: Removing an Interface Module from Cisco ASR-920-24SZ-IM Router
Hot-Swapping the Interface Module
Before hot-swapping the interface module, read the Activating or Deactivating Interface Module section in
the Cisco ASR 920 Series Aggregation Services Router Configuration Guide.
Note
The Cisco ASR-920-24SZ-IM Router provides a feature that allows you to remove and replace an interface
module without powering down the router. This feature, called hot-swapping or Online Insertion and Removal
(OIR), allows you to remove and replace an interface module without disrupting router operation.
The Cisco ASR-920-24SZ-IM Router does not support hot-swapping or OIR of TDM IM. To activate a TDM
IM you must reload the router. Without reloading the router, the IM or associated front panel ports cannot be
used. If reload is aborted, the ports 20 to 23 remain disabled and IM remains in Out-of-Service (OOS) state
until next reload.
Caution
Installing the Router
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Installing the Router
Hot-Swapping the Interface Module

When you remove or insert an interface module while the router is powered on and running, the router does
the following:
1. Determines if there is sufficient power for the module.
2. Scans the backplane for configuration changes.
3. Initializes the newly inserted module.
4. Places any previously configured interfaces on the module back to the state they were in when they were
removed.
The router runs diagnostic tests on any new interfaces and the test results indicate the following:
• If the tests are successful it means the router is operating normally.
• If the new module is faulty, the router resumes normal operation, but leaves the new interfaces disabled.
• If the diagnostic tests fail, the router stops operating, which usually indicates that the new module has a
problem in the bus and should be removed.
To avoid erroneous failure messages, note the current configuration of all the interfaces before you remove
or replace an interface module, and allow at least 2 minutes for the system to reinitialize after a module has
been removed or replaced. This time is recommended in order to allow for synchronization between components
within the interface module and for synchronization with the RSP.
Caution
Installing and Removing the Fan Tray
The sections describe the installation and removal of fan tray on the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router.
Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router. Follow these steps to install the fan tray in the chassis:
Procedure
Step 1 Guide the fan tray into the chassis until it is fully seated. The following figures show how to orient the fan
tray for Cisco ASR-920-24SZ-IM Router and Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router respectively.
Keep your fingers, clothing, and jewelry away from the fans. Always handle the fan tray by the
handle.
Caution
Step 2 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).
Installing the Router
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Installing the Router
Installing and Removing the Fan Tray

Figure 16: Installing the Fan Tray on Cisco ASR-920-24SZ-IM Router
Installing the Router
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Installing the Router
Installing the Fan Tray

Figure 17: Installing the Fan Tray on Cisco ASR-920-24SZ-M, ASR-920-24TZ-M Router
This completes the procedure for installing or replacing the fan tray in a Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router.
For more information about air flow guidelines, see the Air Flow Guidelines section.
Removing the Fan Tray
The fan tray supports online insertion and removal (OIR). There is no need to power down the Cisco ASR
920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router to remove or replace the fan tray. However, the
router will shut down if the fan tray is removed from the chassis for more than five minutes.
The router can stay active for up to 5 minutes if the temperature is below the ambient limit. However, in the
event of an overtemperature alarm, the router can shut down in less than 5 minutes. In the event of a critical
temperature alarm, the router shuts down immediately.
Caution
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after the fan tray
has been removed or replaced.
Caution
Follow these steps to remove and replace the fan tray on the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router:
Installing the Router
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Installing the Router
Removing the Fan Tray