cc/td/doc/product/cable/rfswitch
hometocprevnextglossaryfeedbacksearchhelp
PDF

Table of Contents

Installing the Cisco RF Switch

Installing the Cisco RF Switch

This chapter explains the procedures to install and connect the Cisco RF Switch. The chapter contains the following sections:

Installation Checklist

A rack-mount kit is included in the shipping container. The rack-mount brackets in the kit are for mounting the Cisco RF Switch in a standard, 19-in.-wide, 4-post equipment rack.


Note   The rack-mount brackets are not suitable for use with other racks, such as 23-in. telco racks.

If you are installing an equipment shelf or using mounting hardware other than that supplied with the chassis, review the guidelines in the "Equipment Racks" section, then proceed to the "Installing the Cisco RF Switch in a Workbench or Tabletop Environment" section.

If you do not plan to install your Cisco RF Switch in an equipment rack, proceed to the "Installing the Cisco RF Switch in a Workbench or Tabletop Environment" section.

To assist you with your installation and provide a historical record of what was done, by whom, use the "Installation Checklist" section. Print a copy of this checklist and indicate when each procedure or verification is completed.


Table 3-1: Installation Checklist
Task Verified by Date

Cisco RF Switch and all accessories unpacked

Types and numbers of interfaces verified

Cisco RF Switch mounted in rack (optional)

Cisco RF Switch chassis grounding lug installed and grounding wire connected

Optional cable management bracket for Cisco uBR10012 chassis installed

AC power cable or DC power leads connected to power source and Cisco RF Switch; cables secured

Captive installation screws on Ethernet controller, power supply, and upstream and downstream switch cards checked

Network interface cables and devices connected

ASCII terminal attached to console port

Console port set for 9600 baud, 8 data bits, no parity, and 1 stop bit (9600 8N1)

System power turned on (DC OK LED is on)

System boot complete (I/O controller enabled LED is on)

Ethernet controller, power supply and upstream and downstream switch cards operational

System ready for global and interface-specific configuration

Rack-Mounting

The chassis mounts to two rack posts with brackets that attach to either the front or rear sides of the chassis. The inside width between the posts or mounting strips (left and right) must be at least 17 in. (44.45 cm).

Some equipment racks provide a power strip along the length of one of the mounting strips. If your rack has this feature, consider the position of the strip when planning fastener points and ensure that you will be able to pull any components straight out of their respective slots.

The inlet and exhaust ports for cooling air are located on the right and left of the chassis, respectively, so multiple Cisco RF Switches can be stacked in a rack with little or no vertical clearance.

Installing the Brackets on the Chassis

This section explains how to install the rack-mount brackets and cable-management bracket on a Cisco RF Switch. Before installing the chassis in the rack, you must install a rack-mount bracket on each side of the front or rear of the chassis.

The parts and tools required for installing the rack-mount and cable-management brackets are listed in the "Tools for Installation" section.


Tip Cisco recommends that you install the rack-mount brackets on the front portion of the Cisco RF Switch so that the MCX connector side of the Cisco RF Switch (coinciding with the RF cable interfaces on the Cisco CMTS chassis) faces the rear of the rack. (See Figure 3-2.)

To install the rack-mount brackets on the chassis for a flush front configuration, complete the following steps:


Step 1   Locate the threaded holes in the front sides of the chassis.

Step 2   Align the first rack-mount bracket with the threaded holes in the front right side of the chassis. Align the bracket with the chassis as shown in Figure 3-1.


Figure 3-1: Installing the Rack-Mount Brackets on the Cisco RF Switch


Step 3   Thread the M5 x 8-mm Phillips countersunk screws through the rack-mount bracket and into the side of the chassis. Use a number 2 Phillips screwdriver to tighten the screws.

Step 4   Repeat Step 1 through Step 3 for the other rack-mount bracket.

This completes the procedure for installing the rack-mount brackets on the chassis for a flush-front rack-mount configuration. Proceed to the "Installing the Chassis in the Rack" section.


Installing the Chassis in the Rack

After installing the brackets on the chassis, mount the Cisco RF Switch by securing the rack-mount brackets to the two posts or mounting strips in the rack, using four screws appropriate for your equipment rack.


Caution   To prevent injury, review the safety precautions in "Preparing for Installation," before installing the Cisco RF Switch in a rack.


Caution   Because the brackets support the weight of the entire chassis, be sure to use all four screws to fasten the two rack-mount brackets to the rack posts.


Tip Install the Cisco RF Switch on top of the Cisco uBR10012 CMTS. No space is required between any of the components.


Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

- This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

- When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.

(To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Note   For information on the WaveCom HD4040 series If-to-RF upconverters, go to the following URL: http://www.wavecom.ca.


Note   If you are installing an AC shelf in the same rack, refer to the documentation included with the AC shelf for positioning (usually at the bottom of the rack).

To install the chassis in the rack, do the following and see Figure 3-2.


Step 1   On the chassis, ensure that all captive screws on the Ethernet controller, power supply, and all upstream and downstream switch cards are tightened.

Step 2   Make sure that the path to the rack is unobstructed. If the rack is on wheels, ensure that the brakes are engaged or that the rack is otherwise stabilized.


Tip Two people should perform Step 3 through Step 6.

Step 3   Position the chassis so that the front end is closest to you; then lift the chassis and move it to the rack.


Caution   To prevent injury, avoid sudden twists or moves.

Step 4   Slide the chassis into the rack, pushing it back until the brackets (installed at the front or rear of the chassis) meet the mounting strips or posts on both sides of the equipment rack.

Step 5   While keeping the brackets flush against the posts or mounting strips, position the Cisco RF Switch so the holes in the brackets are aligned with those in the mounting strips.


Figure 3-2:
Installing the Cisco RF Switch Chassis in the Rack (Flush-Front Design)


Step 6   Insert all four 1/32 x 3/8 slotted screws (two on each side) through the brackets and into the mounting strip.


Tip Insert the bottom screws first.

Step 7   Tighten all the screws.


Installing the Optional Cable Management Bracket on the Cisco uBR10012 CMTS

A cable management bracket for the Cisco uBR10012 chassis is enclosed in the shipping container with your Cisco RF Switch. (See Figure 3-3.) Cisco recommends using this bracket to ensure proper airflow in the chassis.

If you choose to install the cable management bracket, ensure that it is connected before you proceed with connecting RF cables to the cable interface line cards installed in your Cisco uBR10012 chassis. See Figure 3-2 for an illustration of the cable management bracket's location on the Cisco uBR10012 chassis.


Figure 3-3: Optional Cable Management Bracket for the Cisco uBR10012 Chassis


To install the cable-management bracket on a Cisco uBR10012 chassis, complete the following steps:


Step 1   Locate the threaded holes in the right rear and left rear side, spanning the width of the cable interface line cards on the chassis.

Step 2   Align the cable-management bracket with one set of threaded holes at the top of the Cisco uBR10012 chassis.

Step 3   Thread two M5 x 8-mm Phillips countersunk screws through the bracket and into the chassis. Use a number 2 Phillips screwdriver to tighten the screws.


Installing the Cisco RF Switch in a Workbench or Tabletop Environment

The Cisco RF Switch should already be in the area where you will install it, and your installation location should already be determined. If not, refer to the "Site Requirements" section.

When installing the Cisco RF Switch on a workbench or tabletop, ensure that the surface is clean and in a safe location and that you have considered the following:

Complete the following steps to install on a workbench or tabletop:


Step 1   Remove any debris and dust from the tabletop or workbench and the surrounding area. Also make sure that the path between the Cisco RF Switch and its new location is unobstructed.

Step 2   On the chassis, ensure that all captive installation screws are tightened.

Step 3   Lift the chassis by placing your hands around the chassis sides and lifting the chassis from underneath.


Caution   To prevent injury, avoid sudden twists or moves.

Step 4   Place the Cisco RF Switch on the tabletop or workbench.


Connecting Power

Following are the procedures for connecting AC-input and DC-input power to the Cisco RF Switch.


Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Warning This unit might have more than one power supply connection. All connections need to be removed to de-energize the unit. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)

Before connecting power and turning on the Cisco RF Switch, you must provide an adequate ground connection for your system. Proceed to the following section, "Grounding the Cisco RF Switch," for a description of the tools you need to connect the required grounding wire to the Cisco RF Switch. Then, if you intend to connect AC power to the Cisco RF Switch power supply, proceed to the "Connecting AC Power to the Power Supply" section. Otherwise, to connect DC power to the Cisco RF Switch power supply, proceed to the "Connecting DC Power to the Power Supply" section.

Grounding the Cisco RF Switch

Before connecting power and turning on the Cisco RF Switch, you must provide an adequate ground connection for your system. Earth grounding holes are provided on the left-side panel (power supply side) of the Cisco RF Switch chassis, approximately three inches back from the front panel.

To make an adequate grounding connection, you need the following parts:


Warning Use copper conductors only. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Figure 3-4: Grounding Lug Dimensions (in Inches)


To connect the grounding wire to the Cisco RF Switch:


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. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Step 1   Ensure that the Cisco RF Switch is powered off and you have disconnected the AC power cord or DC power leads from the power supply.

Step 2   Strip approximately 0.75 in. (2 cm) of shielding from one end of the grounding wire.

Step 3   Insert the stripped end of the grounding wire into the open end of the grounding lug and crimp the grounding lug securely to the grounding wire.

Step 4   Slide the segment of heatshrink tubing over the joint of the grounding lug and grounding wire so that the exposed connection is covered.

Step 5   Shrink the tubing in place using a suitable heating device.

Step 6   Attach the grounding lug to the power-supply side of the Cisco RF Switch chassis using the two M5 hex-head screws.

Step 7   Connect the other end of the grounding wire to an appropriate ground source.


Connecting AC Power to the Power Supply


Warning The device is designed to work with TN power systems. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Step 1   Ensure that the power switch on the power supply is in the OFF (0) position.

Step 2   Slide the cable-retention clip to the left, away from the AC receptacle, and plug in the power cable.

Step 3   Secure the cable in the power supply AC receptacle by sliding the cable-retention clip to the right until it fits around the connector. The cable-retention clip provides strain relief for the AC power cable. (See Figure 3-5.)


Figure 3-5: Connecting AC Power


Step 4   Plug the AC power supply cable into the AC power source.

This completes the procedure for connecting AC-input power. Proceed to the "Powering On" section.


Connecting DC Power to the Power Supply


Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Warning Secure all power cabling when installing this unit to avoid disturbing field-wiring connections. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


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. (To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.)


Note   The color coding of the DC-input power supply leads depends on the color coding of the DC power source at your site. Typically, green or green-yellow is used for ground, black is used for +48V (return), and red or white is used for -48V. Ensure that the lead color coding you choose for the DC-input power supply matches lead color coding used at the DC power source.


Step 1   Ensure that the -48V and +48V leads are disconnected from the power source.

Step 2   Check that the power switch on the power supply is in the OFF (0) position.

Step 3   Connect the two-hole grounding lug on the grounding lead to the M5 grounding receptacles with the two M5 nuts. Tighten the nuts using an 8-mm wrench or nut driver (or adjustable wrench). (See Figure 3-6.)

Step 4   Using a wire stripper, strip approximately 0.25 in. (7 mm) from the -48V and +48V leads.

Step 5   Insert the stripped end of the +48V lead all the way into the +48V lead receptacle and tighten the receptacle screw using the same 3/16-inch flat-blade screwdriver. Repeat for the -48V lead.


Tip Make sure that the entire stripped end of each lead is inserted all the way into its receptacle. If any exposed wire at the stripped end of a lead is visible after inserting the lead into its receptacle, remove the lead from the receptacle, use the wire stripper to cut the stripped end of the lead, and repeat Step 4 and Step 5.

Step 6   Tighten the receptacle screws and nuts for the +48V and -48 VDC input leads, and run the +48V and -48V leads between the two strain-relief studs on the power supply faceplate.


Figure 3-6:
Connecting DC Power


Step 7   Connect the +48V and -48V leads to the power source.

This completes the procedure for connecting DC-input power. Proceed to the following section, "Powering On," to start the Cisco RF Switch.


Powering On

After installing your Cisco RF Switch and connecting cables, complete the following steps to power on the Cisco RF Switch:


Step 1   Check for the following:

Step 2   Place the power switch on the power supply in either the AC or DC position, depending on which type of power source you have connected your Cisco RF Switch to. The green LED on the power supply goes on.

Step 3   During the boot process, monitor the Cisco RF Switch system initialization and LED behavior for any errors or failures.



hometocprevnextglossaryfeedbacksearchhelp
Posted: Fri Aug 9 09:30:49 PDT 2002
All contents are Copyright © 1992--2002 Cisco Systems, Inc. All rights reserved.
Important Notices and Privacy Statement.