Cisco NCS 4201 Instruction Manual

Installing the Cisco NCS 4201
This chapter describes how to install the Cisco NCS 4201 and includes the following sections:
•Prerequisites, page 1
•Installing the Chassis in a Rack, page 1
•Installing and Removing the Front Door, page 7
•Installing and Removing the Fan Tray, page 9
•Installing the Power Supply, page 12
•Installing and Removing SFP Modules, page 24
•Installing the Chassis Ground Connection, page 29
•Connecting a Chassis to the Network, page 34
Prerequisites
Before installing the Cisco NCS 4201, 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 NCS 4201. See Receiving the Chassis section.
•Gathering the tools and test equipment required to properly install the Cisco NCS 4201. See Tools and
Equipment section.
For more instructions on how to prepare for the installation of the Cisco NCS 4201, see Preparing for Installation
chapter.
Installing the Chassis in a Rack
The procedures in this section apply to both horizontal and vertical mounting of the chassis in a rack:
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Installing the Chassis Brackets
Figure 1: Z Rack Mounting Bracket
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 chassis.
Step 2 Position one of the brackets against the chassis side, and align the screw holes.The figure below shows how to attach
the brackets on the Cisco NCS 4201 for a 23-inch rack.
Figure 2: Attaching Mounting Brackets to Cisco NCS 4201 for a 23-inch Rack (Front Z-bracket))
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 and Step 3 for the other bracket.
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Installing the Cisco NCS 4201
Installing the Chassis Brackets

Installing the Chassis in the Rack
Ensure adequate air flow when mounting the chassis in a rack. For more information, see the Air Flow
Guidelines section.
Note
Install the cable guides before installing the Cisco NCS 4201 on the rack. See Attaching the Cable Guides
section.
Note
To install the 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 with the mounting holes in the equipment rack.
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Installing the Cisco NCS 4201
Installing the Chassis in the Rack

The following figure shows how to install the Cisco NCS 4201 in a 23-inch EIA rack.
Figure 3: Installing the Cisco NCS 4201 in a 23-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
You can guide the cables on the Cisco NCS 4201 through the cable bracket:
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Installing the Cisco NCS 4201
Attaching the Cable Guides

The cable bracket helps in routing the cables from all components on the front panel thereby enabling a proper
cable-bending radius.
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Installing the Cisco NCS 4201
Attaching the Cable Guides

To install the cable guides, perform these steps:
Step 1 Position the cable brackets (left and right) against the side of the chassis and align the four screw holes, as shown in
figure below using standard kit.
Step 2 Secure the cable brackets with the four M6x12mm screws supplied with the cable kit. The recommended maximum
torque is 3N-m.
Figure 4: Installing the Cable Brackets on Cisco NCS 4201 (As Per the Standard Kit)
Figure 5: Guiding the Cables from the Front Panel through the Cable Brackets
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Installing the Cisco NCS 4201
Attaching the Cable Guides

Installing and Removing the Front Door
The front door provides additional space in front of the Cisco NCS 4201 to accommodate cables. You can
remove the door to provide unrestricted access to the front of the chassis.
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Installing the Cisco NCS 4201
Installing and Removing the Front Door

Installing the Front Door
Step 1 Align the door with the cable bracket as shown in the figure below.
Step 2 Tighten the screws on both sides on the top and bottom.
Figure 6: Installing the Front Door
Removing the Front Door
The door is attached to the cable bracket through screws on both sides on the top and bottom. Loosen the screws on the
top left and right corners of the door.
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Installing the Cisco NCS 4201
Installing the Front Door

The door falls outwards, hinged to the cable bracket.
Figure 7: Removing the Front Door
Installing and Removing the Fan Tray
The following sections describe the installation and removal of fan tray on the Cisco NCS 4201:
Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco NCS 4201. Follow these steps to install the
fan tray in the chassis:
Step 1 Guide the fan tray into the chassis until it is fully seated. The figure below show how to orient the fan tray for Cisco
NCS 4201.
Keep your fingers, clothing, and jewelry away from the fans. Always handle the fan tray by the handle.Caution
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Installing the Cisco NCS 4201
Installing and Removing the Fan Tray

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).
Figure 8: Installing the Fan Tray on Cisco NCS 4201
This completes the procedure for installing or replacing the fan tray in a Cisco NCS 4201.
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 NCS
4201 to remove or replace the fan tray. However, the chassis will shut down if the fan tray is removed from
the chassis for more than five minutes.
The chassis 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 chassis can shut down in less than 5 minutes. In the event of
a critical temperature alarm, the chassis shuts down immediately.
Caution
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Installing the Cisco NCS 4201
Removing the Fan Tray