Installing the Cisco NCS 4202 Series Chassis

This chapter describes how to install the chassis and includes the following sections:

Prerequisites

Before installing the chassis, 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 chassis. See Chassis-Lifting Guidelines section.
  • Gathering the tools and test equipment required to properly install the chassis. See Tools and Equipment section.

For more instructions on how to prepare for the installation of the chassis, see Preparing for Installation.

Installing the Chassis in a Rack

Each Cisco NCS 4202 chassis includes the door with Z-rack-mounting brackets. Using the rack-mounting brackets, you can mount the chassis on the front or rear of the rack.

Using the two rack-mounting brackets for mounting, you can recess the chassis in the equipment rack. This arrangement provides extra space in front of the chassis for the cables and allows you to close the doors of racks equipped with front-close doors.

To attach or replace the rack-mounting brackets, see the Installing the Chassis Brackets section.

The rack-mounting brackets are slotted to allow the chassis to be mounted in racks with EIA 1.25-inch (3.175-cm) or WECO 1.0-inch (2.54-cm) hole spacing. When installed in the rack, the chassis requires one EIA 1.75-inch (4.4-cm) vertical mounting space (or 1 rack unit [RU]) for mounting (see the Mounting the Chassis in a Rack section).


Caution

Allow clearance on either side of the chassis for cooling air to be drawn in through the right side and circulated through the chassis and out the three-fan exhaust ports mounted on the other side of chassis.

The following sections describe how to install the chassis in a rack. The procedures in this section apply to both horizontal and vertical mounting of the chassis in a rack:

Installing the Chassis Brackets

The chassis is shipped with Z-mounting brackets that can be installed on the front of the chassis.


Warning

Ensure that you use screws that is provided with the rack mount bracket only. Screw should be secured only with the rack mount bracket in place.

Figure 1. Z Rack Mounting Bracket


To install the brackets on the front of the chassis, perform these steps:

Figure 2. Rack-Mounting Brackets


Mounting the Chassis in a Rack

Perform the steps given below to mount the chassis into the equipment rack.


Note
To secure the chassis to the equipment rack, you must use the two mounting screws (provided) for each side or follow your local practices for installing the chassis into your equipment rack. Ensure that the rack-mount brackets are securely fastened. For more information, see the Installing the Chassis Brackets section .

Procedure

Step 1

Locate the equipment rack position where you plan to install the chassis.

Step 2

Verify that there are no obstructions and ensure that the equipment rack is stabilized.

Step 3

Install the chassis brackets. The Rack-mounting brackets figure shows the types of mounting brackets.

Step 4

Locate the mounting holes of the chassis.

Step 5

Align the rack-mounting bracket with the chassis and position with the four #6-32 x 0.25-inch screws (provided).

Step 6

Insert the screws (four places) and tighten using a Number 2 Phillips screwdriver (each side).

Step 7

Position the chassis in the equipment rack lining up the bracket holes on the chassis with the holes on the rack and secure with four #6-32 x 0.25-inch mounting screws (two on each side).

Step 8

Tighten the screws using a 1/4-inch flat-blade screwdriver (each side). The recommended maximum torque is 10 in.-lb.

Installing the Chassis in the Rack


Note
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 chassis in a 19-inch EIA rack. See Attaching the Cable Guides.

To install the 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.

Step 2

Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment rack.

The following figure shows how to install the chassis in a 19-inch EIA rack.

Figure 3. Installing the Chassis in the 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 4202 through the cable bracket:

The cable bracket helps in routing the cables from all components on the front panel thereby enabling a proper cable-bending radius.

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 figure below.

Figure 4. Installing the Cable Bracket
Figure 5. Guiding the Cables from the Front Panel through the Cable Brackets

Step 2

Secure the cable guides with the four M6x12mm screws supplied with the cable kit. The recommended maximum torque is 3N-m.

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.

Installing the Front Door

Procedure

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

Procedure

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.

The door falls outwards, hinged to the cable bracket.

Figure 7. Removing the Front Door


Wall Mounting the Router

To install the router on a wall, follow the instructions in these procedures:

Attaching the Brackets to the Router for Wall-Mounting


Note
While wall mounting the router, always ensure that the power supplies are at the top position.

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 8. Attaching 19-inch Brackets for Wall Mounting


Mounting the Router on the Wall

For the best support of the router and cables, ensure the router is attached securely to wall studs or to a firmly attached plywood mounting backboard.


Warning

Suitable for mounting on and over a concrete or other non-combustible surface only. Statement 345


Caution

Before mounting the router, ensure that all unused holes at the sides of the router are always protected by screws.

Figure 9. Installing Screws in Unused Holes Before Wall Mounting the Router


Mount the router with the front panel as shown in the following figure.

Figure 10. Mounting the Router on the Wall



Caution

When mounting the router vertically, ensure that the power supplies are at the top.

Installing and Removing SFP Modules

These sections describe how to install and remove SFP modules. The modules are inserted into the SFP module slots as depicted in Installing an SFP Module into an SFP Module Slot figure. These field-replaceable modules provide interfaces.

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 chassis. 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 chassis.

For detailed instructions on installing, removing, and cabling the SFP module, see the SFP module documentation.

Installing SFP Modules

Figure below shows an SFP module that has a bale-clasp latch.


Caution

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.

Figure 11. SFP Module with a Bale-Clasp Latch

To insert an SFP module into the module slot, follow these steps:

Procedure

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.

Step 2

If the SFP module that you are using has the markings, use them to identify the top side of the module.

Step 3

Align the SFP module in front of the slot opening.

Step 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.

Figure 12. Installing an SFP Module into an SFP Module Slot


Caution

 

Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light. Store the dust plugs for later use.

Step 5

Insert the cable connector into the SFP module:

  • For fiber-optic SFP modules, insert the LC cable into the SFP module.
  • For copper 1000BASE-T SFP modules, insert the RJ-45 cable connector into the SFP module.

Removing SFP Modules

To remove an SFP module from a module receptacle, follow these steps:

Procedure

Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Step 2

Disconnect the cable from the SFP module, and insert a dust plug into the cable end.

Tip

 

For reattachment, note which cable connector plug is send (TX) and which is receive (RX).

Step 3

Unlock and remove the SFP module, as shown in the following figure.

If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp latch is obstructed and you cannot use your index finger to open it, use a small, flat-blade screwdriver or other long, narrow instrument to open the bale-clasp latch.

Figure 13. Removing a Bale-Clasp Latch SFP Module


Step 4

Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.

Step 5

For fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.

Step 6

Place the removed SFP module in an antistatic bag or other protective environment.

Connecting to the Copper Ports

Copper ports [0:7] are capable of working 10/100/1000 Mbps.


Note
The chassis copper ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.

To maximize performance, choose one of these methods for configuring the Ethernet ports:

  • Let the ports autonegotiate both speed and duplex.
  • Set the port speed and duplex parameters on both ends of the connection.

Procedure

Step 1

When connecting to workstations, servers, and chassis, connect a straight-through cable to an RJ-45 connector on the front panel.When connecting to chassis or repeaters, use a crossover cable.

Note

 
You can use the mdix auto interface configuration command in the CLI to enable the automatic medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled, the chassis detects the required cable type for copper Ethernet connections and configures the interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a copper 100/1000, or an SFP module port on the chassis, regardless of the type of device on the other end of the connection.

Step 2

Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on when both the chassis and the connected device have established link.

If the port LED does not turn on, the device at the other end might not be turned on, or there might be a cable problem or a problem with the adapter installed in the attached device.

Note

 
On user network interface (UNI) ports, the port LED is green after the link is established.

Step 3

Reconfigure and reboot the connected device, if necessary.

Step 4

Repeat Steps 1 through 3 to connect each device.

Connecting to SFP Modules

This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic SFP modules, see the Connecting to Fiber-Optic SFP Modules.

For instructions about how to install or remove an SFP module, see the Installing and Removing SFP Modules.

Connecting to Fiber-Optic SFP Modules

Follow these steps to connect a fiber-optic cable to an SFP module:


Warning

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051


Warning

Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 1053


Warning

Class 1 CDRH) and Class 1M (IEC) laser products. Statement 1055


Warning

Invisible laser radiation may be emitted from the end of the unterminated fiber cable or connector. Do not view directly with optical instruments. Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. Statement 1056


Caution

Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.

Procedure

Step 1

Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.

Step 2

Insert one end of the fiber-optic cable into the SFP module port.

Step 3

Insert the other cable end into a fiber-optic connector on a target device.

Step 4

Observe the port status LED.

The LED turns green when the chassis and the target device have an established link.

If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device.

Step 5

If necessary, reconfigure and restart the chassis or target device.

Installing the Chassis Ground Connection

Before you connect the power or turn on the power to the chassis, you must provide an adequate chassis ground (earth) connection to your chassis.

This section describes how to ground the chassis. The grounding lug location is on the back panel of the chassis.


Tip

Ensure that the grounding lug wire does not cover the fan opening.

Figure 14. Attaching a Grounding Lug to the Rear of the chassis


1

Grounding-lug

To ensure that the chassis ground connection that you provide is adequate, you need the following parts and tools:

  • Ratcheting torque screwdriver with Philips head that exerts up to 20 in.-lb (2.25 N-m) of torque for attaching the ground wire to the Chassis.

    Ensure that you secure the lugs only with the Cisco-provided screw or a Philips head screw of 10-32 x 0.37 inch. Secure the screws only while assembling the lugs.

  • Crimping tool as specified by the ground lug manufacturer

  • 6-AWG or larger copper wire for the ground wire

  • Wire-stripping tools appropriate to the wire you are using


Caution

Before making connections to the chassis, ensure that you disconnect the power at the circuit breaker. Otherwise, severe injury to you or damage to the chassis may occur.


Caution

Electric Shock Hazard: This fan tray has to be serviced by trained personnel only.


Warning

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 1025


Warning

When installing the unit, the ground connection must always be made first and disconnected last. Statement 42

This unit is to be installed in a restrictive access location and must be permanently grounded to a minimum 6-AWG copper ground wire.

Perform the following procedure to ground the chassis 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.

Procedure

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).

Figure 15. 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 Figure below.

Figure 16. Crimping a Ground Lug on to the Ground Wire


Step 4

Use a Phillips head screwdriver to attach the 2-hole ground lug and wire assembly to the chassis with the 2 pan-head Phillips head screws.

Step 5

Connect the other end of the ground wire to a suitable grounding point at your site.

Installing and Removing the Fan Tray

This section describes how to install and remove fan trays.

Installing the Fan Tray

Follow these steps to install the fan tray in the chassis:


Caution

Electric Shock Hazard: This fan tray has to be serviced by trained personnel only.


Caution

Always wear the ESD wrist strap when installing or uninstalling the fan tray.


Caution

Unplug all power sources before performing this procedure.

Procedure

Step 1

Orient the fan tray so that the captive screws are aligned to the chassis cavity on the back panel. See below figure.

Step 2

Push the fan assembly into the chassis until the power connector seats in the backplane and the captive installation screws make contact with the chassis.

Step 3

Tighten the captive installation screws, using a flat-blade or number 2 Phillips-head screwdriver.

Figure 17. Installing the Fan Tray in the Chassis


Removing the Fan Tray

To remove the existing fan assembly, follow these steps:


Caution

When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan blades stop completely before you remove the fan tray.


Caution

Unplug all power sources before performing this procedure.


Caution

Always wear the ESD wrist strap when installing or uninstalling the fan tray.

Procedure

Step 1

Locate the fan assembly in the chassis. The fan tray is located to the left of the chassis on the rear side. See below figure.

Step 2

Loosen the two fan tray captive installation screws by turning them counterclockwise, using a flat-blade or number 2 Phillips-head screwdriver.

Step 3

Grasp the fan assembly with both hands, and pull it outward; rock it gently, if necessary, to unseat the fan assembly power connector from the backplane.

Step 4

Pull the fan assembly clear of the chassis, and set it aside.

Figure 18. Uninstalling the Fan Tray from the Chassis


Interface Module Installation

The following sections describe the various tasks of associated with interface module installation:

Installing an Interface Module


Caution

Before inserting an interface module, make sure that the chassis is grounded.

Procedure

Step 1

To insert the interface module, carefully align the edges of the interface module between the upper and lower edges of the chassis slot.

Step 2

Carefully slide the interface module into the chassis slot until the interface module makes contact with the backplane.

Step 3

Tighten the locking thumbscrews on both sides of the interface module. The recommended maximum torque is 5.5 in.-lb (.62 N-m).

Step 4

Connect all the cables to each interface module.

Removing an Interface Module

Procedure

Step 1

To remove an interface module, disconnect all the cables from the interface module.

Step 2

Loosen the locking thumbscrews on both sides of the interface module.

Step 3

Slide the interface module out of the chassis slot by pulling on the handles. If you are removing a blank filler plate, pull the blank filler plate completely out of the chassis slot using the captive screws.

Installing Patch Panel

To install the brackets on the rear of the patch panel, perform these steps:

Procedure

Step 1

Remove the larger (M4) rack mount screws (as indicated in the Rack Mount Screws figure below) from both sides. To secure the brackets, follow the instructions in Step-3.

Step 2

Remove the patch panel rack-mount brackets from the accessory kit and position them beside the patch panel.

Step 3

Position the brackets against the patch panel sides, and align with the screw holes. Secure the rack mount bracket to patch panel using a torque of 13.2 in.-lb (1.5 N-m) see the figure below.

Figure 19. Rack Mount Screws

(1) Rack mount screws to secure rack mount brackets on both the sides.
Figure 20. Patch Panel Front View with Brackets


Step 4

Position the cable management guides against the mounting brackets on the patch panel, see the figure below.

Figure 21. Patch Panel Front View with Brackets and Guides


Figure 22. Patch Panel Rear View with Brackets and Guides


Step 5

Secure the guides to the brackets with the screws. The recommended maximum torque is 28 in.-lb (3.16 N-m).

Step 6

Position the patch panel with brackets and guide onto the rack and secure with screws provided. The recommended maximum torque is 28 in.-lb (3.16 N-m), see the figure below.

Note

 

Cable brackets should be assembled according to the PID used as different PIDs have different set and quantity of brackets. Refer figures 110 to 115 for PID and cable bracket details.

Figure 23. Patch Panel Front View with Brackets and Guides Installed on Rack


Figure 24. Patch Panel Rear View with Brackets and Guides Installed on Rack


Figure 25. PANEL-16-DIN Patch Panel Mounting Installed on Rack
Figure 26. PANEL-48-1-AMP64
Figure 27. PANEL-48-1-DIN
Figure 28. PANEL-48-1-RJ48
Figure 29. PANEL-48-3-DIN

Note

 
The installation of PANEL-48-1-AMP64, PANEL-48-1-DIN, PANEL-48-1-RJ48, and PANEL-48-3-DIN is similar to the installation steps mentioned above.
Figure 30. PANEL-48-3-HDBNC
Figure 31. PANEL-144-1-AMP64
Figure 32. Example of 120⁰ Exit Cable Hood

The following table shows details of the 120⁰ exit cable hood:

Table 1. Cable Routing Recommendation for Panel-144-1-AMP64

1

120⁰ exit cable hood with left routing should be used for centre ports on the Tx side.

2

120⁰ exit cable hood with right routing should be used for centre ports on the Rx side.

Install 3G Patch Panel

You can choose to either set up the Cisco ASR 903 3G patch panel on a rack or wall mount it.

Install Rack Brackets

Procedure

Step 1

Connect the grounding lugs using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire.

Step 2

Use a 6 AWG ground wire to connect the other end to a suitable grounding point at your site.

Figure 33. Patch Panel Grounding - Single
Figure 34. Patch Panel Grounding - Dual

Step 3

Position the patch panel in the rack as follows:

  • If the front of the patch panel is at the front of the rack, insert the rear of the chassis between the mounting posts.
  • If the rear of the patch panel is at the front of the rack, insert the front of the chassis between the mounting posts.

Step 4

Align the mounting holes in the bracket with the mounting holes in the equipment rack.

Figure 35. Installing the Patch Panel - Single in a 19-inch Rack
Figure 36. Installing the Patch Panel - Dual in a 19-inch Rack
Figure 37. Installing the Patch Panel - Single in a 21-inch Rack
Figure 38. Installing the Patch Panel - Dual in a 21-inch Rack
Figure 39. Installing the Patch Panel - Single in a 23-inch Rack
Figure 40. Installing the Patch Panel - Dual in a 23-inch Rack

Step 5

Secure the brackets to the chassis with the screws. The recommended maximum torque is 28 in.-lb (3.16 N-m).

  • EIA 19 and 23 inches mounting brackets for both single and double 3G interface module patch panels.

  • ETSI 21 inches mounting brackets for both single and double 3G interface module patch panels.

Set up 3G Patch Panel on Rack

To install the optional cable management brackets, perform these steps:

Procedure

Step 1

Position the cable management brackets against the front of the chassis and align the screw holes, as shown in the figure.

Step 2

Secure the cable management brackets with the screws. The recommended maximum torque is 10 in.-lb (1.12 N-m).

Figure 41. Attaching 19-inch Brackets to Patch Panel - Single
Figure 42. Installing 19-inch Brackets on to Rack - Single
Figure 43. Attaching 19-inch Brackets to Patch Panel - Dual
Figure 44. Installing 19-inch Brackets on to Rack - Dual
Figure 45. Attaching 21-inch Brackets to Patch Panel - Single
Figure 46. Installing 21-inch Brackets on to Rack - Single
Figure 47. Attaching 21-inch Brackets to Patch Panel - Dual
Figure 48. Installing 21-inch Brackets on to Rack - Dual
Figure 49. Attaching 23-inch Brackets to Patch Panel - Single
Figure 50. Installing 23-inch Brackets on to Rack - Single
Figure 51. Attaching 23-inch Brackets to Patch Panel - Dual
Figure 52. Installing 23-inch Brackets on to Rack - Dual

Wall Mount 3G Patch Panel

Before you begin

You must first install the mounting brackets and cable guides on to the patch panel before you mount it on the wall. You can use the same rack mount brackets (700-113653-01) for wall mount.

Procedure

Step 1

Remove the mounting brackets from the accessory kit and position them beside the device.

Note

 
You can install the brackets as shown in the figure.
Figure 53. Wall Mount - Single
Figure 54. Wall Mount - Dual

Step 2

Secure the bracket to the device with the recommended maximum torque of 10 inch-pounds (1.1 newton meters).

Step 3

Position the device vertically on the wall.

Caution

 
Before mounting the device, ensure that all unused holes at the sides of the device are protected with screws.

Step 4

Use a tape measure and level to verify that the device is installed straight and on level.

Patch Panel Dimensions

Following are the various patch panel dimensions.

Figure 55. Patch Panel Without Brackets

Figure 56. Patch Panel With Brackets

Figure 57. AMP64 Patch Panel With Brackets

Figure 58. 3G Patch Panel Without Brackets - Single

Figure 59. 3G Patch Panel Without Brackets - Dual

Patch Panel Pinout

Given below are the pinout information for the regular crossover and the straight-through cable patch panel.

Table 2. Pinout Details

Pin #

Crossover

Straight-through

1

Receive Tip

Transmit Tip

2

Receive Ring

Transmit Ring

3

—

—

4

Transmit Tip

Receive Tip

5

Transmit Ring

Receive Ring

6

—

—

7

—

—

8

—

—

Panel and Bracket

Table 3. Panel and Bracket Details

Panel

Bracket Description

PANEL-3G-COMBO-1

Single 12E1 + 4xDS3 patch panel for 3G CEM/IMSG IM (requires crossover cable)

PANEL-3G-COMBO-2

Double 12E1 + 4xDS3 patch panel for 3G CEM/IMSG IM (requires crossover cable)

PANEL-3G-COMBO-1S

Single 12E1 + 4xDS3 patch panel for 3G CEM/IMSG (requires a straight-through cable)

PANEL-3G-COMBO-2S

Double 12E1 + 4xDS3 patch panel for 3G CEM/IMSG IM (requires a straight-through cable)

P3G1-RCKMNT-19IN

EIA 19 inches mounting brackets for single 3G CEM/IMSG IM patch panel

P3G1-RCKMNT-ETSI

ETSI 21 inches mounting brackets for single 3G CEM/IMSG IM patch panel

P3G1-RCKMNT-23IN

EIA 23 inches mounting brackets for single 3G CEM/IMSG IM patch panel

P3G2-RCKMNT-19IN

EIA 19 inches mounting brackets for double 3G CEM/IMSG IM patch panel

P3G2-RCKMNT-ETSI

ETSI 21 inches mounting brackets for double 3G CEM/IMSG IM patch panel

P3G2-RCKMNT-23IN

EIA 23 inches mounting brackets for double 3G CEM/IMSG IM patch panel

Installing the Power Supply

The Cisco NCS 4202 provides the choice of two different power supplies:

  • DC power—The DC power supply uses 2-position terminal block-style connector with positive latching/securing and labeled connections for +24/48V, GRD, -24/48V. The terminal block connector is of suitable size to carry the appropriate AWG wire size to handle the input current of the power supply. No ON/OFF switch is provided.
  • AC power—The AC power supply has an IEC 320-type power receptacle and a 15 Amp service connector. You can use standard right angle power cords with the AC power supply. The power supply includes a power cord retainer. No ON/OFF switch is provided.

You can install dual power supplies for redundancy.


Warning

Read the installation instructions before connecting the system to the power source. Statement 10


Note
Products that have an AC power connection are required to have an external surge protective device (SPD) provided as part of the building installation to comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety.

Caution

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.

Power Connection Guidelines

This section provides guidelines for connecting the chassis’s power supplies to the site power source.


Warning

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 213


Warning

The plug-socket combination must be accessible at all times because it serves as the main disconnecting device. Statement 1019


Warning

This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045

Guidelines for DC-Powered Systems

Basic guidelines for DC-powered systems include the following:

  • Each chassis power supply should have its own dedicated input power source. The source must comply with the safety extra-low voltage (SELV) requirements in the UL 60950, CSA 60950, EN 60950, and IEC 60950 standards.
  • The circuit must be protected by a dedicated two-pole circuit breaker. The circuit breaker should be sized according to the power supply input rating and local or national code requirements.
  • The circuit breaker is considered the disconnect device and should be easily accessible.
  • The system ground is the power supply and chassis ground.
  • Do not connect the DC return wire to the system frame or to the system-grounding equipment.
  • Use the grounding lug to attach a wrist strap for ESD protection during servicing.
  • If the chassis is powered with -48V grounding of the positive, the it should be done at the power source side and chassis should protected by a dedicated two-pole circuit breaker.

Guidelines for AC-Powered Systems

Basic guidelines for AC-powered systems include the following:

  • Each chassis power supply should have its own dedicated branch circuit.
  • The circuit breaker should be sized according to the power supply input rating and local or national code requirements.
  • The AC power receptacles used to plug in the chassis must be the grounding type. The grounding conductors that connect to the receptacles should connect to protective earth ground at the service equipment.

Preventing Power Loss

Use the following guidelines to prevent power loss to the chassis:

  • To prevent loss of input power, ensure that the total maximum load on each circuit supplying the power supplies is within the current ratings of the wiring and breakers.
  • In some systems, you can use an UPS to protect against power failures at your site. Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems such as the Cisco NCS 4202 Series Chassis, which can have substantial current-draw fluctuations due to bursty data traffic patterns.

Use the information in the Cisco NCS 4202 Specifications table to estimate the power requirements and heat dissipation of the chassis based on a given configuration of the chassis. Determining power requirements is useful for planning the power distribution system needed to support the chassis.

Installing the DC Power Supply Module


Note

This equipment is suitable for installation in Network Telecommunications Facilities and locations where the NEC applies.


Note

This equipment is suitable for installations utilizing the Common Bonding Network (CBN).


Note

The grounding architecture of this product is DC-Isolated (DC-I) for DC-powered products. DC-powered products have a nominal operating DC voltage of 48 VDC.

Perform the following procedure to install the power supply module:

Procedure

Step 1

Ensure that the system (earth) ground connection has been made. See below figure.

Step 2

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by loosening the captive installation screws.

Step 3

Verify that power to the DC circuit connected to the power supply you are installing is off. To ensure that power has been removed from the DC circuits, locate the circuit breakers for the DC circuits, switch the circuit breakers to the OFF position, and tape the circuit-breaker switches in the OFF position.

Step 4

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide the power supply into the power supply bay. Make sure that the power supply is fully seated in the bay.

Step 5

Tighten the captive installation screws of the power supply. The recommended maximum torque is 5.5 in.-lb (0.62 N-m).

Figure 60. Installing the DC Power Supply Module


Activating a DC Power Supply Module

Perform the following procedure to activate a DC power supply:

Procedure

Step 1

Remove the tape from the circuit-breaker chassis handle, and restore power by moving the circuit-breaker chassis handle to the On (|) position.

Step 2

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1) is green.

Step 3

If the LEDs indicate a power problem, see Troubleshooting.

Step 4

If you are connecting a redundant DC power supply, repeat these steps for the second power source.

Note

 
If you are connecting a redundant DC power supply, ensure that each power supply is connected to a separate power source in order to prevent power loss in the event of a power failure.

Installing the DC Power Cables


Note
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
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.
Figure 61. DC Connector With Inbuilt Screw


A

0.97 inches

C

0.27 inches

B

0.31 inches

M

0.81 inches

To attach the DC power supplies:

Procedure

Step 1

Locate the terminal block plug.

Step 2

Insert the DC-input power source wires into the terminal block plug.

Step 3

Attach the DC supply wires using the designated screws.

Step 4

Use a ratcheting torque screwdriver to torque the terminal block plug captive screw. See figure below.

Figure 62. Attaching the DC Power Supply Wires


Removing the DC Power Supply Module

This section provides information about removing and replacing the DC power supply.


Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003


Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030

Follow these steps to remove and replace the DC power supply:

Procedure

Step 1

Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional precaution, tape the circuit-breaker switch in the Off position.

Step 2

Slip on the ESD-preventive wrist strap that was included in the accessory kit.

Step 3

Switch the power supply circuit-breaker switch to the Off (O) position.

Step 4

Pull the terminal block plug connector out of the terminal block head in the power supply. See figure below.

Step 5

Loosen the captive screws on the DC power supply.

Step 6

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the power supply out from the chassis while supporting it with the other hand.

Figure 63. Removing the DC Power Supply Module


Installing the AC Power Supply Module

Follow these steps to install the AC power supply module:

Procedure

Step 1

Ensure that the system (earth) ground connection has been made.

Step 2

If necessary, remove the blank power supply filler plate from the chassis power supply bay opening by loosening the captive installation screws.

Step 3

Grasp the power supply handle with one hand. Place your other hand underneath the power supply. Slide the power supply into the power supply bay. Make sure that the power supply is fully seated in the bay. See below figure.

Figure 64. Installing the AC Power Supply Module


Step 4

Slide the AC power supply cord inside the tie of the tie-and-holder and tighten the tie around the power supply cord.

Step 5

Plug the power supply cord into the AC power supply.

Installing the AC Power Cables

To install the AC power cables in the power supply slots:

Procedure

Step 1

Plug the power supply cord in the power supply module.

Step 2

Insert the power supply cord into the tie [1] and tighten the tie around the power supply cord as shown in [2] in the figure below.

Figure 65. Attaching the AC Power Tie-and-Clip Cord


Activating an AC Power Supply Module

Perform the following procedure to activate an AC power supply:

Procedure

Step 1

Plug the power cord into the power supply.

Step 2

Connect the other end of the power cord to an AC-input power source.

Step 3

Verify power supply operation by checking if the respective power supply front panel LED (PS0 or PS1) is green.

Step 4

If the LEDs indicate a power problem, see Troubleshooting for troubleshooting information.

Step 5

If you are connecting a redundant AC power supply, repeat these steps for the second power source.

Note

 
If you are connecting a redundant AC power supply, ensure that each power supply is connected to a separate power source in order to prevent power loss in the event of a power failure.

Removing the AC Power Supply Module

This section describes how to remove and replace the AC power supply.


Warning

When you install the unit, the ground connection must always be made first and disconnected last. Statement 1046


Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030


Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074

Follow these steps to remove and replace the AC power supply:

Procedure

Step 1

Disconnect the power cord from the power source. Do not touch any metal on the power cord when it is still connected to the power supply.

Step 2

Loosen the tie and remove the power cord from the tie-and holder.

Step 3

Remove the power cord from the power connection on the power supply. Do not touch the metal prongs embedded in the power supply.

Step 4

Grasp the power supply handle. Simultaneously press the power supply lock towards the left and pull the power supply out from the chassis while supporting it with the other hand.

Figure 66. Removing the AC Power Supply Module


Powering On the Chassis

After the chassis is either rack mounted or mounted on the wall, perform these tasks to complete the installation:

  • Power on the chassis.
  • Connect the front-panel ports. See the Connecting to SFP Modules, to complete the installation.

Connecting the Chassis to the Network

The following sections describe how to connect a chassis to the network:


Note
Connect only SELV services to all the ports.

Connecting Console Cables

The following sections describe how to connect to the chassis using console cables:

Connecting to the USB Serial Port Using Microsoft Windows

This procedure shows how to connect to the USB serial port using Microsoft Windows.


Note
Install the USB device driver before establishing a physical connection between the chassis and the PC, by using the USB console cable plugged into the USB serial port. Otherwise, the connection will fail. For more information, see the Installing the Cisco USB Device Driver section.
Procedure

Step 1

Connect a USB Type A-to-Type A cable to the USB console port, as shown in Removing the AC Power Supply Module figure. If you are using the USB serial port for the first time on a Windows-based PC, install the USB driver now according to the instructions in the following sections:

Note

 
You cannot use the USB port and the EIA port concurrently. When the USB port is used, it takes priority over the EIA port.

Step 2

Connect the USB Type A cable to the PC.

Step 3

To communicate with the chassis, start a terminal emulator application, such as Microsoft Windows HyperTerminal. This software should be configured with the following parameters:

  • 9600 baud
  • 8 data bits
  • no parity
  • 1 stop-bit
  • no flow control

Connecting to the Console Port Using Mac OS X

This procedure describes how to connect a Mac OS X system USB port to the console using the built-in OS X terminal utility.

Procedure

Step 1

Use the Finder to choose Applications > Utilities > Terminal.

Step 2

Connect the OS X USB port to the chassis.

Step 3

Enter the following commands to find the OS X USB port number:

Example:

macbook:user$ cd /dev
macbook:user$ ls -ltr /dev/*usb*
crw-rw-rw-  1 root    wheel       9,  66 Apr  1 16:46 tty.usbmodem1a21 DT-macbook:dev user$

Step 4

Connect to the USB port with the following command followed by the chassis USB port speed:

Example:

macbook:user$ screen /dev/tty.usbmodem1a21 9600

To disconnect the OS X USB console from the terminal window, enter Ctrl-a followed by Ctrl-\

Connecting to the Console Port Using Linux

This procedure shows how to connect a Linux system USB port to the console using the built-in Linux terminal utility.

Procedure

Step 1

Open the Linux terminal window.

Step 2

Connect the Linux USB port to the chassis.

Step 3

Enter the following commands to find the Linux USB port number:

Example:

root@usb-suse# cd /dev
root@usb-suse /dev# ls -ltr *ACM*
crw-r--r--    1 root     root     188,   0 Jan 14 18:02 ttyACM0
root@usb-suse /dev#

Step 4

Connect to the USB port with the following command, followed by the chassis USB port speed:

Example:

root@usb-suse /dev# screen /dev/ttyACM0 9600

To disconnect the Linux USB console from the terminal window, enter Ctrl-a followed by : then quit

Installing the Cisco USB Device Driver

A USB device driver must be installed the first time a Microsoft Windows-based PC is connected to the USB serial port on the chassis.

This procedure describes how to install the Microsoft Windows USB device driver in Microsoft Windows XP, Windows Vista, Windows 2000, Windows 7, and Windows 8. Download the driver for your chassis model from the Tools and Resources Download Software site, USB Console Software category, at:

https://software.cisco.com/download/release.html?mdfid=286037604&flowid=71056&softwareid=282855122&release=3.13&relind=AVAILABLE&rellifecycle=&reltype=latest


Note
To download the driver, you must have a valid service contract associated to your Cisco.com profile.
Procedure

Step 1

Unzip the file asr-9xx_usbconsole_drivers.zip.

Step 2

Double-click xrusbser_ver2100_installer.exe in the XR21x141x-Win-DriversOnly-Vers2.1.0.0/EXE folder.

Installation Wizard GUI is displayed.

Step 3

Click Next. The InstallShield Wizard Completed window is displayed.

Step 4

Click Finish.

Step 5

Connect the USB cable to the PC and chassis USB console ports. Follow the on-screen instructions to complete the installation of the driver.

Step 6

XR21V1401 USB UART Device driver successfully installed message is displayed.

The USB console is ready for use.

Uninstalling the Cisco USB Driver

Figure 67. Connecting the USB Console Cable to the Cisco NCS 4202


1

USB Type-A console port

2

USB Type-A to USB Type-A console cable

This procedure describes how to uninstall the Microsoft Windows USB device driver in Microsoft Windows XP, Windows Vista, Windows 2000, Windows 7, and Windows 8.


Note
Disconnect the chassis console terminal before uninstalling the driver.
Procedure

Step 1

Choose Start > Control Panel > Add or Remove Programs.

Step 2

Scroll to Windows Driver Package - Exar corporation (xrusbser) Ports and click Remove . The Program Maintenance window is displayed.

Step 3

Click Yes to uninstall the driver.

Connecting to the EIA Console Port


Note
The US-to-RJ45 adapter cable and the DB9 console cable are not included with the chassis; they can be ordered separately from Cisco.

Note
The serial console cable kit is not included with the chassis; it is ordered separately.

To connect a terminal to the EIA Console port on the chassis, follow these steps:

Procedure

Step 1

Connect the USB end of the USB-to RJ-45 cable to the EIA Console port.

Step 2

Connect the RJ-45 end of the DB-9 adapter cable to the USB-to RJ-45 cable, as shown in below figure.

Figure 68. Connecting a Modem to the Cisco NCS 4202 Series Chassis


Step 3

Connect the DB-9 end of the console cable to the DB-9 end of the terminal.

Step 4

To communicate with the chassis, start a terminal emulator application, such as Microsoft Windows HyperTerminal. This software should be configured with the following parameters:

Label

Component

Label

Component

1

EIA Console port

3

RJ-45 to DB-9 cable

2

USB-to-RJ45 adapter

4

Desktop or system

  • 9600 baud
  • 8 data bits
  • no parity
  • 1 stop-bit
  • no flow control

Connecting a Management Ethernet Cable

When using the Ethernet Management port in the default mode (speed-auto and duplex-auto) the port operates in the auto-MDI/MDI-X mode. The port automatically provides the correct signal connectivity through the Auto-MDI/MDI-X feature. The port automatically senses a crossover or straight-through cable and adapts to it.

However, when the Ethernet Management port is configured to a fixed speed (10, 100, or 1000 Mbps) through command-line interface (CLI) commands, the port is forced to the MDI mode.

When in a fixed-speed configuration and MDI mode:

  • Use a crossover cable to connect to an MDI port
  • Use a straight-through cable to connect to an MDI-X port

Caution

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the Management Ethernet ports only to intra-building or unexposed wiring or cable. The intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring.

Installing and Removing SFP and SFP+ Modules

The Cisco NCS 4202 Series Chassis supports a variety of SFP and SFP+ modules, including optical and Ethernet modules. For information on how to install and remove SFP and SFP+ modules, see the documentation for the SFP or SFP+ module at:

http://www.cisco.com/en/US/partner/products/hw/modules/ps5455/prod_installation_guides_list.html

For information about inspecting and cleaning fiber-optic connections, see http://www.cisco.com/en/US/partner/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml


Caution

We recommend that you wait for 30 seconds between the removal and insertion of an SFP on an interface module. We recommend this to allow the transceiver software to initialize and synchronize with the Cisco NCS 4202 Series Chassis. Changing an SFP more quickly could result in transceiver initialization issues that disable the SFP.

Connecting a USB Flash Device

To connect a USB flash device to the chassis, insert the memory stick in the USB port labeled USB MEM. The Flash memory module can be inserted only one way, and can be inserted or removed regardless of whether the chassis is powered up or not.

Figure below shows the USB port connector on the Cisco NCS 4202 Series Chassis.

Figure 69. Flash Token Memory Stick


Removing a USB Flash Device


Note

If the USB flash device is abruptly removed, the constant sync operations of the file system in progress fail due to the USB device removal. These errors occur with ext2 or ext3 or ext4 file systems and are not seen with fat32 file system. This is a default behavior on any Linux platform.

The following error messages are displayed when you remove the USB device:

*Jun 24 10:29:45.766: %IOSXE-3-PLATFORM: R0/0: kernel: EXT2-fs (sda1): previous I/O error to superblock detected 
*Jun 24 10:29:45.878: %IOSXE-3-PLATFORM: R0/0: kernel: EXT2-fs (sda1): previous I/O error to superblock detected 
*Jun 24 10:29:46.012: %IOSXE-3-PLATFORM: R0/0: kernel: EXT2-fs (sda1): previous I/O error to superblock detected 
*Jun 24 10:29:46.013: %IOSXE-3-PLATFORM: R0/0: kernel: EXT2-fs (sda1): previous I/O error to superblock detected

To remove and replace a USB flash token memory stick from and into a chassis, follow these steps:

Procedure

Step 1

Pull the memory stick from the USB port.

Step 2

To replace the Cisco USB Flash memory stick, simply insert the module into the USB port labeled USB MEM. The Flash memory module can be inserted only one way, and can be inserted or removed regardless of whether the chassis is powered up or not.

This completes the USB Flash memory installation procedure.

Connecting Timing Cables

The following sections describe how to connect timing cables to the Cisco NCS 4202 Series Chassis:

Connecting Cables to a GPS Interface

The following sections describe how to connect cables from the Cisco NCS 4202 to a GPS unit for input or output timing of frequency:

Connecting a Cable to the Input 10-Mhz or 1-PPS Interface
Procedure

Step 1

Connect one end of a shielded mini-coax cable to the GPS unit.

Step 2

Connect the other end of the shielded mini-coax cable to the 10-Mhz or 1-PPS port on the Cisco NCS 4202 Series Chassis.

Connecting a Cable to the Output 10-Mhz or 1-PPS Interface
Procedure

Step 1

Connect one end of a shielded mini-coax cable to the Slave unit.

Step 2

Connect the other end of the shielded mini-coax cable to the 10-Mhz or 1-PPS port on the Cisco NCS 4202 Series Chassis.

Connecting a Cable to the ToD Interface
Procedure

Step 1

Connect one end of a straight-through Ethernet cable to the GPS unit.

Step 2

Connect the other end of the straight-through Ethernet cable to the ToD or 1-PPS port on the Cisco NCS 4202 Series Chassis.

What to do next

Note
For instructions on how to configure clocking, see the Cisco NCS 4200 Series Configuration Guide .

Warning

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the ToD ports only to intra-building or unexposed wiring or cable. The intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring.


Note
For more information about GPS-port pinouts, see Troubleshooting.

Connecting Ethernet Cables

The Cisco NCS 4202 Series Chassis interface modules support RJ-45 and Ethernet SFP ports. For instructions on how to connect cables to Ethernet SFP ports, see the Connecting Cables to SFP Modules.

The RJ-45 port supports standard straight-through and crossover Category 5 unshielded twisted-pair (UTP) cables. Cisco does not supply Category 5 UTP cables; these cables are available commercially.


Warning

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the Gigabit Ethernet ports only to intra-building or unexposed wiring or cable. The intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring.

Follow these steps to connect a cable to a copper Gigabit Ethernet port:

Procedure

Step 1

Confirm that the chassis is powered off.

Step 2

Connect one end of the cable to the Gigabit Ethernet port on the chassis.

Step 3

Connect the other end to the BTS patch or demarcation panel at your site.

Connector and Cable Specifications

For more information on cable specifications and pinouts, see Troubleshooting.