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Contents
- Introduction
- Overview
- General Safety Guidelines
- Tools for Installation
- Rack-Mounting the Cisco UBR-RFSW-ADV with the Cisco uBR10012 Router
- Mounting a Single Cisco UBR-RFSW-ADV Above a Cisco uBR10012 Universal Broadband Router
- Rack-Mounting the Cisco UBR-RFSW-ADV with the Cisco uBR10012 Router
- Installing the Cable-Management Bracket
- Mounting Two Cisco uBR10012 Universal Broadband Routers and Two Cisco UBR-RFSW-ADVs in a Single Rack
- How to Remove and Install the FRUs
- Removing the Switch and Interconnect Cards
- Installing the Switch and Interconnect Cards
- Removing the Power Supply Module
- Installing the Power Supply Module
- Removing the Controller Card
- Installing the Controller Card
- Using the Cisco UBR-RFSW-ADV with the Cable Interface Line Cards on the Cisco uBR10012 Router
- Connecting the RF Cables From the Working and Protect Line Cards to the Cisco UBR-RFSW-ADV
- Connecting the PRE With the Controller Card
- Connecting the Grounding Wire to the Cisco UBR-RFSW-ADV
- Connecting AC Power to the Power Supply
- Connecting DC Power to the Power Supply
- Powering On the Cisco UBR-RFSW-ADV
- Power Supply LED Behavior
- Confirming the Hardware Installation
- Troubleshooting Individual Hardware Components
- Troubleshooting the Power Subsystem
- Troubleshooting the Controller Card
- Troubleshooting Upstream and Downstream Working Switch Cards
- Troubleshooting Upstream and Downstream Protect Switch Cards
- Physical Specifications
- RF Specifications
- Power Requirements
- Part Numbers
- Cisco UBR-RFSW-ADV Components Part Numbers and Product Identifiers
- Power Cables
Introduction
The Cisco uBR Advanced RF Switch (Cisco UBR-RFSW-ADV) provides N+1 line card redundancy switching for the Cisco uBR10012 universal broadband router also known as the Cisco CMTS. The Cisco UBR-RFSW-ADV is a rack-mount unit controlled by the Cisco uBR10012 router.
Overview
The Cisco UBR-RFSW-ADV is located between the Cisco uBR10012 router and the cable plant. All the RF downstream (output) and RF upstream (input) ports of the Cisco uBR10012 router are connected to one side of the Cisco UBR-RFSW-ADV, while the cable plant is connected to the other side.
The Cisco uBR10012 router supports up to eight cable interface (RF) line cards. Each line card supports a single downstream Universal Cable Holder (UCH) connector (five RF ports per connector) and two upstream UCH connectors (ten RF ports per connector).
When supporting N+1 redundancy, the Cisco uBR10012 router allocates one of the eight line cards as a protect line card.
There are 24 cards on the rear of the Cisco UBR-RFSW-ADV. Each card supports one UCH connector. These cards are arranged in eight groups of three cards each. In the middle is the protect card group, which consists of one downstream protect and two upstream protect cards (see Figure 2). This protect card group connects to the Cisco uBR10012 router protect line card. To either side of the protect cards are groups of switch cards—one downstream switch card and two upstream switch cards per group. These groups of switch cards connect to the remaining line cards on the Cisco uBR10012 router.
On the front of the Cisco UBR-RFSW-ADV are 21 interconnect cards. These cards are arranged in seven groups of three cards each. Each group contains one downstream interconnect card and two upstream interconnect cards. These interconnect cards connect to the cable plant.
When the Cisco uBR10012 router and Cisco UBR-RFSW-ADV are not in protect mode, each interconnect card group is switched to a corresponding line card on the Cisco uBR10012 router. However, when the Cisco uBR10012 and Cisco UBR-RFSW-ADV are in protect mode, the interconnect card group associated with the failed cable interface line card is switched to the protect line card group instead.
The Cisco uBR10012 router manages all protect switching control plane events and system upgrades.
The Cisco uBR10012 router requires Cisco IOS Release 12.2(33)SCG and later releases to operate the Cisco UBR-RFSW-ADV.
Cisco IOS Release 12.2(33)SCG and later releases for Cisco uBR10012 router are required for operation with the Cisco UBR-RFSW-ADV. When the Cisco uBR10012 router determines that a cable interface line card failure has occurred, it enters into protect mode and additionally commands the Cisco UBR-RFSW-ADV to enter protect mode.
The Cisco UBR-RFSW-ADV supports the following line cards on the Cisco uBR10012 router:
The Cisco UBR-RFSW-ADV enhances overall system usability by providing easy cabling using the same quick-connect UCH system used on all Cisco uBR10012 router cable interface line cards.
The Cisco UBR-RFSW-ADV provides the following enhancements over the earlier Cisco uBR 3x10 RF Switch units:
- One Cisco UBR-RFSW-ADV replaces two uBR 3x10 RF Switch units.
- UCH type connectors allow easy cabling and improved RF and electromagnetic interference (EMI) performance.
- Image upgrade is improved.
- RF path performance is improved with significantly less insertion loss.
- 54 to 1002 MHz downstream frequency range.
- 5 to 85 MHz upstream frequency range.
- Fully-redundant control ports.
The figures below show the front view (cable plant side) and the rear view (CMTS side) of the Cisco UBR-RFSW-ADV.
The figure below shows the front view (cable plant side) of the upstream-only version of the Cisco UBR-RFSW-ADV.
The figure below shows the rear view (CMTS side) of the upstream-only version of the Cisco UBR-RFSW-ADV.
The table below lists the Cisco UBR-RFSW-ADV chassis dimensions.
Table 1 Cisco UBR-RFSW-ADV Chassis Dimensions Unit Dimension Chassis Depth 17.70 in (44.96 cm)—measured from front connector panel face to rear connector panel face
19.46 in (49.43 cm)—measured from front connector handle to rear connector handle
Chassis Width 17.28 in (43.89 cm) Chassis Height 3 rack units Two types of rack-mounting are supported for the Cisco UBR-RFSW-ADV:
- Mounting a Single Cisco UBR-RFSW-ADV Above a Cisco uBR10012 Universal Broadband Router
- Mounting Two Cisco uBR10012 Universal Broadband Routers and Two Cisco UBR-RFSW-ADVs in a Single Rack
Note
For more details on rack-mounting, see Rack-Mounting the Cisco UBR-RFSW-ADV with the Cisco uBR10012 Router.For more information about the Cisco UBR-RFSW-ADV product identifiers (PIDs), see Power Requirements.
General Safety Guidelines
When you install any component in a chassis, observe all caution and warning statements mentioned in this chapter. For warning translations, see the regulatory compliance and safety documentation that came with this product.
The following guidelines will help ensure your safety and protect the equipment. However, these guidelines may not cover all potentially hazardous situations you may encounter during system installation, so be alert.
- Install your product in compliance with the national and local electrical codes. In the United States, this means the National Fire Protection Association (NFPA) 70, United States National Electrical Code. In Canada, Canadian Electrical Code, part I, CC22.1. In other countries, International Electrotechnical Commission (IEC) 364, part 1 through part 7.
- Review the safety warnings listed in the regulatory compliance and safety documentation before installing, configuring, or performing maintenance on the product.
- Disconnect power at the source before you install or remove a chassis.
- Do not attempt to lift an object that might be too heavy to lift safely by yourself.
- Keep the chassis area clear and as dust free as possible during and after installation.
- Keep tools and chassis components away from walk areas
- Do not wear loose clothing, jewelry (including rings and chains), or other items that could get caught in the chassis.
- Use the product in accordance with its marked electrical ratings and product usage instructions.
WarningOnly trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030.
Tools for Installation
Your Cisco UBR-RFSW-ADV is fully assembled at the factory; no assembly is required. However, you need the following tools and equipment to install and cable the Cisco UBR-RFSW-ADV:
- # 2 Phillips screwdriver (extended length)
- 3/16-inch flat-blade screwdriver (extended length)
- T-10 TORX for UCH2
- Tape measure (optional)
- Level (optional)
- 14 AWG (2.5 mm2) cable with a minimum of three conductors rated for at least 140°F (60°C, for DC-input power supply installations only)
- Standard wire stripper (for grounding wire and DC-input power supply installations)
- Tape (for securing the handle of a DC circuit breaker in the OFF position when a DC-input power supply is powered down)
The rack-mount kit includes the following parts:
- Two front rack-mount brackets for mounting the chassis in the rack
- Two rear sliding rack-mount support brackets
- Two rear sliding rack-mount brackets
- 14 M5 x 8-mm Phillips countersunk screws to secure the rack-mount brackets to the chassis
To verify the RF set up of your plant, you need:
- Cisco UBR-RFSW-ADV cabling bundles supplied by Cisco Systems, Inc. or WhiteSands Engineering. For more detailed information, see Part Numbers
- RF spectrum analyzer
- For coaxial cabling:
- Assorted RF attenuators (with at least two 20-dB attenuators)
In addition, you might need the following cables:
Rack-Mounting the Cisco UBR-RFSW-ADV with the Cisco uBR10012 Router
Based on your requirement, you can rack mount the Cisco UBR-RFGW-ADV with the Cisco uBR10012 router in two different ways:
- Option 1: Mounting a Single Cisco UBR-RFSW-ADV Above a Cisco uBR10012 Universal Broadband Router
- Option 2: Mounting Two Cisco uBR10012 Universal Broadband Routers and Two Cisco UBR-RFSW-ADVs in a Single Rack
Following are some prerequisites for rack-mounting the Cisco UBR-RFSW-ADV:
Tools and Fasteners
These tools and fasteners are required to install the mounting brackets on the Cisco UBR-RFSW-ADV and install the switch in a rack. However, the shipping box includes only the rack-mount brackets types and the countersunk screws.
Bracket Installation
- Three types of rack-mount brackets (included).
- 14 M5 x 8 mm Phillips countersunk screws, zinc-plated (included)—To install the brackets on the switch.
- #2 Phillips screwdriver (extended length).
Rack Installation
Chassis Grounding
- Grounding lug (included).
- Two M5 X 8 mm panhead screws (included).
- Drying device.
- Grounding wire (6 AWG recommended)—The length of the grounding wires depends on the location of your router within the site and its proximity to proper grounding facilities.
- Heat shrink tubing—One segment, 1.5 in. (3.8 cm) length by 0.5 in. (1.2 cm) diameter.
Rack-Mount Kit
Mounting a Single Cisco UBR-RFSW-ADV Above a Cisco uBR10012 Universal Broadband Router
The following figures show one Cisco UBR-RFSW-ADV mounted above one Cisco uBR10012 router in the rack.
NoteIn this installation, the cable plant side of the Cisco UBR-RFSW-ADV is on the same side as the front side of the Cisco UBR10012 router.
Figure 5. Mounting a Single Cisco UBR-RFSW-ADV Above a Cisco uBR10012 Router—Front View (Cable Plant Side of the Cisco UBR-RFSW-ADV)Rack-Mounting the Cisco UBR-RFSW-ADV with the Cisco uBR10012 Router
Before You BeginProcedureTo prevent injury, review the safety precautions in the "Preparing for the Cisco UBR-RFSW-ADV Installation" section in the Cisco UBR Advanced RF Switch Hardware Installation Guide before installing the Cisco UBR-RFSW-ADV in a rack.
CautionBecause the brackets support the weight of a fully populated chassis (48 lb), be sure to use all four screws to fasten the two rack-mount brackets to the rack posts.
NoteFor this configuration, the protect cards on the Cisco UBR-RFSW-ADV should be located on the same side as the cable interface line cards present in the Cisco uBR10012 router.
NoteEnsure that the rear rack mounts are utilized because they help to support the additional weight of the cables.
Step 1 On the Cisco UBR-RFSW-ADV, ensure that all captive screws on the controller, power supply, and all upstream and downstream switch modules are tightened to a torque of 8 in-lbs. Step 2 Ensure 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. Step 3 Install the rack-mount kit to the Cisco UBR-RFSW-ADV. Step 4 Measure the height of the rear rack mount to be the same height as the front rack mount. On the rear left side (CMTS side) of the rack unit, align the rear-mount support bracket with the threaded holes on the rack post. See Figure 1. Step 5 Tighten the four rear mount screws with the rear mount rack support bracket to a torque of 8 in-lbs using the # 2 Phillips screwdriver. Step 6 Repeat Step 4 and Step 5 on the rear right side of the rack post. Step 7 On the rear left side (CMTS side) of the Cisco UBR-RFSW-ADV, align the rear rack-mount support bracket with the four threaded holes on the Cisco UBR-RFSW-ADV.
Note The rear of the Cisco UBR-RFSW-ADV should be flush with the cable interface line card-side of the Cisco uBR10012 router for proper cable routing length.
Step 8 Tighten the four M5 screws that are supplied with the rear rack-mount support bracket to a torque of 8 in-lbs using the # 2 Phillips screwdriver. Step 9 Repeat Step 7 and Step 8 on the rear right side. Step 10 On the front left side (cable plant side) of the Cisco UBR-RFSW-ADV, align the front-mount bracket with the three threaded holes on the Cisco UBR-RFSW-ADV. See Figure 3.
Note The front rack-mount brackets can be installed at various depths depending on the position of the rack rail, to ensure that the Cisco CMTS side of the Cisco UBR-RFSW-ADV is aligned with the line card side depth of the Cisco uBR10012 router.
Step 11 Tighten the three M5 screws that are supplied with the front-mount bracket to a torque of 8 in-lbs using the # 2 Phillips screwdriver. Step 12 Repeat Step 10 and Step 11 on the front right side. Step 13 Position the Cisco UBR-RFSW-ADV so that the front end is closest to you; then lift the chassis and move it to the rack. Step 14 Slide the Cisco UBR-RFSW-ADV into the rack, pushing it back until the rear-mount support bracket (attached to the rear rack post) meets the rear rack-mount support bracket on both sides of the Cisco UBR-RFSW-ADV. Step 15 While keeping the brackets flush against the posts or rear rack-mount support brackets, position the Cisco UBR-RFSW-ADV so that the holes in the front-mount brackets are aligned with those on the rack posts in the front.
Note The rear of the Cisco UBR-RFSW-ADV should be flush with the cable interface line card side of the Cisco uBR10012 router for proper cable routing length. See Figure 4 and Figure 5.
Step 16 Insert four M5 screws (two for each side bracket) through the holes on the front-mount bracket into the threaded holes on the rack post and tighten the screws to a torque of 8 in-lbs using the # 2 Phillips screwdriver.
Tip Insert the bottom screws first.
Step 17 Tighten all the screws.
Installing the Cable-Management Bracket
The cable-management bracket for Cisco UBR-RFSW-ADV chassis is enclosed in the shipping container with your Cisco UBR-RFSW-ADV. We recommend using this bracket for improved cable management.
Before You BeginProcedureEnsure that the bracket is connected before you proceed with connecting the RF cables to the cable interface line cards installed in your Cisco uBR10012 chassis.
Also ensure that you have the following equipment handy:
How to Remove and Install the FRUs
Removing the Switch and Interconnect Cards
Procedure
Step 1 Remove the UCH2. See Figure 1.
- Loosen the lead screw (counter-clockwise) on the UCH2 until it is completely disengaged from the faceplate.
- Pull the UCH2 straight away from the faceplate using the lead screw.
Caution Do not use the cables to pull the UCH2 from the faceplate.
Step 2 Remove the switch card.
- Use the card extraction/insertion tool as shown in Figure 2.
- Using a #2 phillips or a slotted screwdriver, loosen the top and bottom captive screws on the card.
- Grasp the upper handle on the card and slide the card out of the slot (Figure 3). Place it on an antistatic surface with the component side facing up.
Caution Handle the card from the faceplate or the card edges only. Be careful while sliding the switch card out so as not to damage the relays on the card.
Tip In an upstream-only Cisco UBR-RFSW-ADV, always install a blank cover in an empty slot to ensure proper cooling and airflow.
Installing the Switch and Interconnect Cards
Procedure
CautionUse both hands when handling the card. Do not drop the card. Handle the card from the faceplate or the card edges only.
CautionEnsure that you are grounded using an ESD-preventive wrist or ankle strap.
Step 1 Attach the card extraction/insertion tool to the card. See Figure 2. Step 2 Grasp the upper handle on the faceplate with one hand and hold the base of the card faceplate with your other hand. Step 3 Align the upper and lower edges of the card with the upper and lower guides on the chassis. See the figure below. Step 4 Slide the card into the slot until you feel it seat in the backplane connectors. Step 5 Push on the card extraction/insertion tool to fully seat the card in the backplane connectors. Step 6 Engage and begin tightening the captive screws. Use either the #2 phillips or a slotted screwdriver to tighten the captive screws between 5 to 8 in-lbs.
Caution Tighten the captive screws only to a maximum of 8 in-lbs.
Tip Ensure that the captive screws are secure for proper electromagnetic interference (EMI) shielding.
Step 7 Remove the card extraction/insertion tool from the card.
What to Do Next
Go to Connecting the RF Cables From the Working and Protect Line Cards to the Cisco UBR-RFSW-ADV.
Removing the Power Supply Module
Procedure
WarningHazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034.
Step 1 Ensure that the power is switched off from the facility to the Cisco UBR-RFSW-ADV, and no LED is illuminated on the Cisco UBR-RFSW-ADV. Step 2 Disconnect the power supply cables from the power supply module. Step 3 Using a #2 Phillips or a slotted screwdriver, loosen the top and bottom captive screws on the power supply module. See the figure below. Step 4 Grasp the upper and lower handles on the power supply and slide it out of the slot and place it on an antistatic surface with the component side facing up.
Installing the Power Supply Module
Procedure
WarningHazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing.Statement 1034.
CautionEnsure that the power is switched off from the facility to the Cisco UBR-RFSW-ADV, and no LED is illuminated on the Cisco UBR-RFSW-ADV.
Step 1 Grasp the upper and lower handles on the power supply. Step 2 Align the upper and lower edges of the power supply with the upper and lower guides on the chassis. See the figure below. Step 3 Slide the power supply module into the slot until you feel it seat. Step 4 Engage and begin tightening the captive screws. Use either a #2 phillips or a slotted screwdriver to tighten the captive screws.
Caution Tighten the captive screws only to a maximum of 8 in-lbs.
Removing the Controller Card
Procedure
Step 1 Disconnect the RS-232 cable from the RJ-45 ports on the controller card. See the following figure. Step 2 Using a #2 Phillips slotted screwdriver, loosen the top and bottom captive screws on the controller card. Step 3 Grasp the upper and lower handles on the controller card and slide it out of the slot and place it on an antistatic surface with the component side facing up.
Installing the Controller Card
Procedure
Step 1 Grasp the upper and lower handles on the controller card. Step 2 Align the upper and lower edges of the controller card with the upper and lower guides on the chassis. See the following figure. Step 3 Slide the controller card into the slot until you feel it seat. Step 4 Engage and begin tightening the captive screws. Use either a #2 Phillips or a slotted screwdriver to tighten the captive screws.
Caution Tighten the captive screws only to a maximum of 8 in-lbs.
What to Do Next
Using the Cisco UBR-RFSW-ADV with the Cable Interface Line Cards on the Cisco uBR10012 Router
A single Cisco uBR10012 router supports up to eight Cisco cable interface line cards. For this installation, one Cisco UBR-RFSW-ADV is required to deploy a redundancy scheme in which one protect cable interface line card supports from one to seven working cable interface line cards in the same chassis.
Each switch card on the Cisco UBR-RFSW-ADV supports a single UCH2 connector. Each upstream switch cards connects to an upstream universal cable holder (UCH) cable assembly. This assembly provides ten coaxial connections using two 5-way cables (one cable = 5 mini-coax cables).
Each downstream switch card connects to a downstream UCH cable assembly. This assembly provides 5 coaxial connections using one 5-way cable.
The total number of chassis cables are:
NoteUpstream-only version of the Cisco UBR-RFSW-ADV does not have downstream cables.
- On the CMTS side of the Cisco UBR-RFSW-ADV:
- On the Cable plant side of the Cisco UBR-RFSW-ADV:
- Upstream—14 upstream UCH to F-Type cable assemblies. Each assembly provides 10 coaxial connections using two 5-way cables.
- Downstream—7 downstream UCH to F-Type cable assemblies. Each assembly provides 5 coaxial connections using one 5-way cable Total number of cable assemblies on the cable plant side is 21.
The line cards supported in the Cisco uBR10012 router are:
For more information on these line cards, see:
Connecting the RF Cables From the Working and Protect Line Cards to the Cisco UBR-RFSW-ADV
Procedure
CautionThe UCH2 must be used for all cable connections to the line card. Failure to use a UCH2 may cause permanent damage to the line card connectors, resulting in low or no RF output in the downstream or low or no RF input in the upstream.
NoteThis procedure assumes that the RF cables are already installed in the UCH and mounted on the Cisco cable interface line card. If the cables have not been installed in the UCH2 and mounted on the line card, see the Cisco UBR-MC20X20V Cable Interface Line Card Hardware Installation Guide, or Cisco uBR-MC3G60 Cable Interface Line Card Hardware Installation Guide depending on the cable interface line card installed in the Cisco uBR10012 router.
Step 1 Position the UCH2 so that the red line is on the same side as the red line on the card. Step 2 Align the end pins on the UCH2 with the pin holes in the faceplate. (See Figure 1.)
Caution When you are replacing the UCH2, be careful not to bend the cables in the holder at right angles.
Step 3 While holding the UCH2 and cables in place on the faceplate, use your fingers to tighten the leadscrew. If the UCH2 and cables do not appear to settle securely in place on the faceplate, wiggle the holder to resettle the connectors. Step 4 Use the slotted screwdriver to tighten the leadscrew. Turn the leadscrew clockwise until it can no longer turn (10 in-lbs, maximum torque 15 in-lbs).
Caution Torquing the leadscrew to more than the maximum of 20 in-lbs can cause the leadscrew to fail.
Note As you turn the leadscrew clockwise, the outer shroud on the UCH2 moves to cover the red line on the top and the black line on the bottom of the UCH2. The half circles on the edge of the shroud appear to close as the shroud fits down over the UCH2. Full engagement is indicated by visible metal-to-metal contact between the UCH2 and the faceplate (check the half circle cutouts).
Step 5 Repeat Step 1 through Step 4 for the other two UCH2s.
Caution To ensure proper installation and avoid poor connections, be sure that the cables are not positioned at too acute an angle.
Connecting the PRE With the Controller Card
ProcedureThis section describes how to connect the Performance Routing Engine (PRE) on the Cisco uBR10012 router with the AUX port on the controller card in the Cisco UBR-RFSW-ADV.
Step 1 Connect one end of the RJ-45 rollover cable to the serial RJ-45 port (labeled AUX) on the PRE module on the Cisco uBR10012 router. See the following figure. Step 2 Run the other end of the rollover cable through the square hole at the left front side of the chassis, and connect it to the RJ-45 port (labeled COM) on the controller card on the Cisco UBR-RFSW-ADV. See the following figure. Step 3 Repeat Step 1 and Step 2 for the second COM port on the controller and the standby PRE AUX port.
Connecting the Grounding Wire to the Cisco UBR-RFSW-ADV
NoteThe grounding wire and the heat shrink tubing are not available from Cisco Systems. You must obtain them from an electrical-connector vendor. The Philips panhead screws and the grounding lug are available from Cisco Systems.
Before You BeginProcedureHave the following tools ready before performing this task:
- Crimping tool (not included).
- Grounding lug (included)—The grounding lug must have two M5 screw holes with 0.625 in. (15.86 mm) spacing between them.
- Two M5 (metric) panhead Philips for the NEBS ground.
- #2 Phillips screw driver.
- Grounding wire (6 AWG recommended)—The length of the grounding wires depends on the location of your RF switch within the site and its proximity to proper grounding facilities.
- One segment of 1.5 in. (3.8 cm) length of 0.5 in. (1.2 cm) diameter heatshrink tubing.
- Heating device for the heatshrink tubing.
Step 1 Ensure that the Cisco UBR-RFSW-ADV is powered off and that you have disconnected the AC power cord and, or both, 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 Cisco UBR-RFSW-ADV chassis using the two M5 panhead screws. See the following figure. Step 7 Connect the other end of the grounding wire to an appropriate ground source.
Connecting AC Power to the Power Supply
Procedure
Step 1 Ensure that the power switch on the power supply is in the OFF (0) position. Step 2 Plug in the power cable. Step 3 Secure the cable in the power supply AC receptacle (see the figure below). Use a cable tie-wrap to secure the AC power cord to the power supply using the cable holder loop. Step 4 Plug the AC power supply cable into the AC power source. This completes the procedure for connecting AC-input power.
Note Wait until the system has been cabled before turning on the power supply. For more information, see Powering On the Cisco UBR-RFSW-ADV.
Connecting DC Power to the Power Supply
Before You BeginProcedure
WarningBefore performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003.
WarningA readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022.
WarningThis 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.
CautionEach DC-input current is less than 1.8 A continuous and power is 30 W. Use a minimum of 14 AWG (2.5 mm²) wire for the input to each DC-input power supply. The power input must be protected by a 15 A circuit breaker or fuse that is in compliance with your local electric regulations.
NoteThe 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 +48 V (return), and red or white is used for –48 V. Ensure that the lead color coding you choose for the DC-input power supply matches lead color coding used at the DC power source.
Have the following tools ready before you perform this task:
Step 1 Ensure that the –48 V and +48 V 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 Ensure that the unit is properly grounded. See "Grounding the Cisco UBR-RFSW-ADV" section in the Cisco UBR Advanced RF Switch Hardware Installation Guide. Step 4 Using a wire stripper, strip approximately 0.25 in. (7 mm) from the –48 V and +48 V leads. Step 5 Insert the stripped end of the +48 V lead all the way into the +48 V lead receptacle and tighten the receptacle screw using the same 1/8-inch flat-blade screwdriver. Step 6 Repeat Step Step 4 and Step Step 5 for the –48 V lead.
Caution 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, if necessary.
Step 7 Repeat Step 4 and Step 5 for the ground lead. See the figure below. Step 8 Tighten the receptacle screws for the +48 V and –48 V DC input leads. Step 9 Adjust the voltage on the DC power supply to approximately –48 VDC.
Note Wait until the system has been cabled before turning on the power supply. See Powering On the Cisco UBR-RFSW-ADV.
Powering On the Cisco UBR-RFSW-ADV
Procedure
Step 1 Check if the cables connecting the cable interface line cards in the Cisco CMTS router to the Cisco UBR-RFSW-ADV are in place. Step 2 Verify that the power cables are either properly connected, or secured, or both.
- The AC-input power cable is connected and secured with the cable-retention loop.
- The AC power cord is connected to the AC power source. or
- The DC-input leads (+48 and –48 DC) are connected and secured on the power supply faceplate.
- The DC ground wire is securely connected to the ground location (rack).
- The DC leads are connected to the DC power source.
Depending on the type of power source connected to your Cisco UBR-RFSW-ADV, the green VAC LED or the green VDC LED on the power supply turns on.
Step 3 During the boot process, monitor the Cisco UBR-RFSW-ADV system initialization and LED behavior for any errors or failures (see Troubleshooting the Power Subsystem).
Power Supply LED Behavior
Table 2 Power Supply LED Behavior Power Attached1 Position of Power Switch VAC/VCD IN LED POWER LED AC OFF VAC: Green Amber AC ON VAC: Green Green DC OFF VDC: Green Amber DC ON VDC: Green Green DC with reversed polarity OFF VDC: Red Off 1 Both DC and AC power supplies can be connected at the same time.Confirming the Hardware Installation
Start troubleshooting the installation by executing the following commands. These commands display hardware components that are recognized by the system.
- show version Use the show version command to confirm that the router is running the proper version of Cisco IOS software and has a sufficient amount of system memory. The command also reports the system uptime and the method by which the system was powered up. In the following sample output from the show version command, some of the information may be useful for troubleshooting:
UBR10K-ROUTER1# show version Load for five secs: 1%/0%; one minute: 2%; five minutes: 2% Time source is NTP, 05:42:55.000 EST Mon Jun 25 2012 Cisco IOS Software, 10000 Software (UBR10K4-K9P6U2-M), Experimental Version 12.2(20120620:165105) [lokbuild 103] Copyright (c) 1986-2012 by Cisco Systems, Inc. Compiled Wed 20-Jun-12 13:30 by lokbuild ROM: System Bootstrap, Version 12.2(20071113:194412) [shalpin-rom-1_2 101], DEVELOPMENT SOFTWARE UBR10K-ROUTER1 uptime is 3 days, 23 hours, 14 minutes Uptime for this control processor is 3 days, 23 hours, 14 minutes System returned to ROM by reload at 06:26:29 EST Thu Jun 21 2012 System restarted at 06:27:59 EST Thu Jun 21 2012 System image file is "disk0:ubr10k4-k9p6u2-mz_cobra_cable_Jun20" Last reload type: Normal Reload Last reload reason: Reload command This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately. A summary of U.S. laws governing Cisco cryptographic products may be found at: http://www.cisco.com/wwl/export/crypto/tool/stqrg.html If you require further assistance please contact us by sending email to export@cisco.com. Cisco uBR10000 (PRE4-RP) processor with 2588671K/163839K bytes of memory. Processor board ID TBA06230063 SB-1 CPU at 800Mhz, Implementation 0x410, Rev 5.0, 512KB L2 Cache Backplane version 1.1, 8 slot Last reset from software reset PXF processor tmc0 is running. PXF processor tmc1 is running. PXF processor tmc2 is running. PXF processor tmc3 is running. 2 Jacket card(s): 5 SPA card(s) 1 FastEthernet interface 5 Gigabit Ethernet interfaces 1 Ten Gigabit Ethernet interface 45 Cable Modem interfaces 7039K bytes of non-volatile configuration memory. 125440K bytes of ATA compact flash in bootflash (Sector size 512 bytes). 1982232K bytes of ATA compact flash in disk0 (Sector size 512 bytes). Standby is up Standby has 2752512K bytes of memory Configuration register is 0x2102- Use the show hccp channel-switch commands to display the basic system environment status to verify the following:
- Ensure the system operating temperature is equal to or less than 41° F at the inlet and 104° F at the core (5° C and 40° C).
- Report the operational status of the PEMs.
- show hccp channel-switch version The following example is a sample output from the show hccp channel-switch version command:
UBR10K-ROUTER# show hccp channel-switch version Load for five secs: 2%/0%; one minute: 2%; five minutes: 2% Time source is NTP, 05:43:00.672 EST Mon Jun 25 2012 Controller: Controller Golden Firmware: gcv3.0, Controller Alternate Firmware:acv3.1.bin Switch Golden Firmware: gsv3.0, Switch Alternate Firmware:asv3.1.bin Ctrl Switch Bootload Watchdog Temperature Voltage Uptime Serial Version Version Version Error Monitoring 3.0 3.0 3.0 255 33 12.4V 2d18h AFL15448023 SwitchCards: Type Slot Bootload TotalPower Relay Coil Fail Tempe TotalRelay Uptime Serial id Version Cycle pos Register rature Cycle U0 0 1.2 154 -----SSRSSR -----PPPPPP 0 527 2d15h AFL15515031 U10 0 1.2 178 -----SSRSSR -----PPPPPP 0 632 2d14h AFL15515029 DS 0 1.2 149 -----RRRRRR -----PPPPPP 0 462 2d15h AFL15512001 U0 1 1.2 1630 SSSSS-SSSSS PPPPP-PPPPP 29 9651 2d14h AFL15514169 U10 1 1.2 159 SSSSS-SSSSS PPPPP-PPPPP 30 5097 2d15h AFL15514174 DS 1 1.2 152 ------RRRRR ------PPPPP 30 277 2d14h AFL15491032 U0 2 1.2 1556 SSSSS-SSSSS PPPPP-PPPPP 30 7715 2d15h AFL15514156 U10 2 1.2 4150 SSSSS-SSSSS PPPPP-PPPPP 31 10314 2d14h AFL15514168 DS 2 1.2 152 ------RRRRR ------PPPPP 31 6218 2d15h AFL15491048 U0 3 1.2 1565 SSSSS-SSSSS PPPPP-PPPPP 32 4417 2d15h AFL15514105 U10 3 1.2 1626 SSSSS-SSSSS PPPPP-PPPPP 32 4593 2d14h AFL15514101 DS 3 1.2 150 ------RRRRR ------PPPPP 32 178 2d15h AFL15491040 U0 4 1.2 1583 SSSSS-SSSSS PPPPP-PPPPP 31 4431 2d14h AFL15514104 U10 4 1.2 1596 SSSSS-SSSSS PPPPP-PPPPP 32 4471 2d15h AFL15514102 DS 4 1.2 149 ------RRRRR ------PPPPP 32 167 2d14h AFL15491041 U0 5 1.2 1583 SSSSS-SSSSS PPPPP-PPPPP 32 4498 2d14h AFL15514103 U10 5 1.2 1607 SSSSS-SSSSS PPPPP-PPPPP 31 4419 2d15h AFL15514110 DS 5 1.2 237 ------RRRRR ------PPPPP 31 256 2d14h AFL15491010 U0 6 1.2 1722 SSSSS-SSSSS PPPPP-PPPPP 32 4581 2d14h AFL15514106 U10 6 1.2 1735 SSSSS-SSSSS PPPPP-PPPPP 31 4616 2d15h AFL15514162 DS 6 1.2 291 ------RRRRR ------PPPPP 32 315 2d14h AFL15491043 U0 7 1.2 1684 SSSSS-SSSSS PPPPP-PPPPP 31 4585 2d15h AFL15514098 U10 7 1.2 1581 SSSSS-SSSSS PPPPP-PPPPP 31 4367 2d13h AFL15514167 DS 7 1.2 1563 ------RRRRR ------PPPPP 30 1589 2d14h AFL15491042- show hccp channel-switch state
UBR10K-ROUTER# show hccp channel-switch state Load for five secs: 2%/0%; one minute: 2%; five minutes: 2% Time source is NTP, 05:46:31.635 EST Mon Jun 25 2012 Current State: RFSW Ready Current Protected Slot: 0 The switchcard information in RFSW: Slot Id Module Id Type HCCP Conf State 0 12 Upstream Yes Normal 0 11 Upstream Yes Normal 0 10 Downstream Yes Normal 1 1 Upstream Yes Normal 1 2 Upstream Yes Normal 1 3 Downstream Not Normal 2 4 Upstream Not Normal 2 5 Upstream Not Normal 2 6 Downstream Not Normal 3 7 Upstream Not Normal 3 8 Upstream Not Normal 3 9 Downstream Not Normal 4 13 Upstream Not Normal 4 14 Upstream Not Normal 4 15 Downstream Not Normal 5 16 Upstream Not Normal 5 17 Upstream Not Normal 5 18 Downstream Not Normal 6 19 Upstream Not Normal 6 20 Upstream Not Normal 6 21 Downstream Not Normal 7 22 Upstream Not Normal 7 23 Upstream Not Normal 7 24 Downstream Not Normal Failed Message Number: 217 Hello Message Interval: 3 seconds AUXRFSW poll state: Success- show hccp channel-switch image
UBR10K-ROUTER# show hccp channel-switch image Load for five secs: 2%/0%; one minute: 2%; five minutes: 2% Time source is NTP, 05:46:37.959 EST Mon Jun 25 2012 file size file mode file state file name 6404 Write asv3.1.bin 47244 Write acv3.1.bin 6406 Read Active gsv3.0 47238 Read Active gcv3.0- show hccp channel-switch counter
UBR10K-ROUTER# show hccp channel-switch counter Load for five secs: 2%/0%; one minute: 2%; five minutes: 2% Time source is NTP, 05:46:42.191 EST Mon Jun 25 2012 The counter of switchover for all slot/group in rf switch. slot id group 1 group 2 group 3 group 4 group 5 0 5415 5415 5415 5415 3035 1 2435 2435 2435 2435 55 2 2954 2954 2954 2954 2954 3 8 8 8 8 8 4 3 3 3 3 3 5 3 3 3 3 3 6 5 5 5 5 5 7 7 7 7 7 7 UBR10K-ROUTER# getmany -v2c 8.1.1.1 private sysDescr sysDescr.0 = Cisco IOS Software, 10000 Software (UBR10K4-K9P6U2-M), Experimental Version 12.2(20120620:165105) [lokbuild 103] Copyright (c) 1986-2012 by Cisco Systems, Inc. Compiled Wed 20-Jun-12 13:30 by lokbuildIf an installed item does not appear in the command output, make sure the item is properly installed. For example, make sure the switch cards are fully inserted into the slot and the captive screws are tightened. If the problem persists, consult the Cisco UBR-RFSW-ADV release notes to confirm that this is not an existing problem. Finally, contact Cisco TAC.
Troubleshooting Individual Hardware Components
Troubleshooting the Power Subsystem
Table 3 LED Definitions for Power Supply Module LED Description Color or State Description VAC IN Off No input power, possible alarm condition Green AC power is connected VDC IN Off No DC input power Green DC power connected Red DC power connection reversed on +/- POWER Amber Power switch is at OFF – No power to the Cisco UBR-RFSW-ADV Green Power switch is at ON – Power is connected to the Cisco UBR-RFSW-ADV Check the following to help isolate a problem with the power system:
- Does the POWER LED illuminate green when system power is turned on? If not:
- Verify the following sequence of events.
Step Action Expected Result 1 Connect VAC input to the power supply.
VAC LED illuminates green, VDC LED goes OFF, Power Out LED illuminates amber
2 Switch on the power supply.
VAC LED illuminates Green, VDC LED goes OFF, Power Out LED illuminates green
3 Turn off the power supply.
—
4 Connect VDC input to the power supply.
VAC LED goes OFF, VDC LED illuminates green, Power Out LED illuminates amber
5 Disconnect the VAC input to power supply. Switch on the power supply.
VAC LED goes OFF, VDC LED illuminates green, Power Out LED illuminates green
6 Turn off the power supply.
—
7 Reverse the VDC input wiring.
VAC LED goes OFF, VDC LED illuminates RED, Power Out LED goes OFF
8 Switch on the power supply.
VAC LED goes OFF, VDC LED illuminates RED, Power Out LED goes OFF
9 Turn off the power supply.
—
10 Connect VAC input and VDC input to the power supply.
VAC LED illuminates green, VDC LED illuminates green, Power Out LED illuminates amber
11 Switch on the power supply.
VAC LED illuminates green, VDC LED illuminates green, Power Out LED illuminates green
12 Turn off the power supply.
—
13 Reverse the VDC input wiring by connecting it incorrectly.
VAC LED illuminates green, VDC LED illuminates red, Power Out LED illuminates amber
14 Switch on the power supply.
VAC LED illuminates green, VDC LED illuminates red, Power Out LED illuminates green
15 Turn off the power supply.
—
- If you are unable to resolve the problem, see Obtaining Documentation and Submitting a Service Request for information on contacting Cisco technical assistance.
Troubleshooting the Controller Card
Table 4 LED Definitions for Controller Card LED Description Color or State Description POWER/System Status Off Card is not powered on.
Blinking green Indicates that the card is either powering on and Cisco UBR-RFSW-ADV is being configured or the Cisco UBR-RFSW-ADV is downloading an image and reconfiguring the system. Green Normal operation. All cards in the Cisco UBR-RFSW-ADV are configured and are operating normally. Amber Alarm condition. Failover Status Off Cisco UBR-RFSW-ADV is in pass-through mode. Blue Cisco UBR-RFSW-ADV has completed a switch card failover and is in failover configuration mode. The LED turns off when the Cisco UBR-RFSW-ADV returns to the pass-through configuration state. RS-232 Link Status Off Communication link to the Cisco CMTS router is not established. Green Communication link to the Cisco CMTS router is established. Troubleshooting Upstream and Downstream Working Switch Cards
Table 5 LED Definitions for Upstream and Downstream Working Switch Cards LED Description Color or State Description Upper LED Off No power is received by the card.
Green Indicates normal card functionality.
The upper five ports are in pass-through (non-protect) mode.
Blue Indicates that the upper five ports are in protect mode.
Red Alarm condition.
Lower LED Off No power is received by the card.
Green Indicates normal card functionality.
The lower five ports are in pass-through (non-protect) mode.
Blue Indicates that the lower five ports are in protect mode.
Red Alarm condition.
NoteOnly the upper LED is used for downstream switch cards.
Each upstream switch card has two LEDs and each downstream switch card has one LED to indicate the working status of the port. The upstream switch module operates over the frequency range of 5 MHz to 85 MHz. The downstream (high-frequency) switch module operates over the frequency range of 54 MHz to 1002 MHz. During normal system operation, upstream switches all direct traffic to their respective default termination interfaces.
The switch card should provide a minimum of 65 dB of isolation from connector port to connector port during normal operation and more than 65 dB when operating in protect mode.
When an upstream or downstream switch module initially boots, the LEDs briefly cycle on in sequence.
If you are unable to resolve the problem, see Obtaining Documentation and Submitting a Service Request for information on contacting Cisco technical assistance.
Troubleshooting Upstream and Downstream Protect Switch Cards
Table 6 LED Definitions for Upstream and Downstream Protect Switch Cards LED Description Color or State Description Upper LED Off No power is received by the card.
Green Indicates normal card functionality.
The upper five ports are in pass-through (non-protect) mode.
Blue Indicates that the upper five ports are in protect mode.
Red Alarm condition.
Lower LED Off No power is received by the card.
Green Indicates normal card functionality.
The lower five ports are in pass-through (non-protect) mode.
Blue Indicates that the lower five ports are in protect mode.
Red Alarm condition.
NoteOnly the upper LED is used for downstream switch cards.
Physical Specifications
Table 7 Physical Specifications Description Specification Dimensions (H x W x D) 5.25 x 17.28 x 17.70 in. (front connector panel to rear connector panel)
5.25 x 17.28 x 19.46 in. (overall)
Weight
48 lbs (21.77 kg) for a fully-populated Cisco UBR-RFSW-ADV.
43 lbs (19.5 kg) for a fully-populated upstream-only Cisco UBR-RFSW-ADV
Temperature
32º F to 104º F (0º C to 40º C) Software requirement
Cisco IOS Release 12.2(33)SCG Regulatory compliance
Safety: CSA950/UL1950, EN60950, IEC 60950, ACAN TS001, AS/NZS3260
EMC Emissions: CFR 47 part 15:2000 Class B; EN55022:1998 Class B; EN300386:2000; AS/NZS 3548:1995 Class B; CISPR22:1997 Class B; VCCI-3/2000.04; ICES-003:1994; CNS13438:1997 Class B
EMC Immunity: EN61000-3-2:1995; EN61000-3-3:1995; EN55024:1998; EN50082-1:1992; EN50082-1:1997
RF Specifications
Table 8 RF Specifications Description Specification Working Protect Input/output Impedance 75 ohms 75 ohms Frequency Range (Upstream)
5 to 85 MHz
5 to 85 MHz
Frequency Range (Downstream)
54 to 1002 MHz
54 to 1002 MHz
Return Loss (Upstream)
>/= 14dB
Goal: >14dB
>/= 11dB
Goal: >/=14dB
Return Loss (Downstream)
>14 dB (88 to 750 MHz)
>13 dB (750 to 1002 MHz)
>12 dB (88 to 750 MHz)
>11 dB (750 to 1002 MHz)
Insertion Loss (Upstream)
Insertion loss delta between the working and protect at the same frequency will be less than 1.0 dB.
2.5 dB maximum 2.5 dB maximum Insertion Loss (Downstream)
Insertion loss delta between the working and protect at the same frequency will be less than 1.5 dB.
4.5 dB maximum 4.5 dB maximum Insertion Loss Flatness (Upstream) +/- 0.25 dB in 6.4 MHz BW +/- 0.4 dB, in 6.4 MHz BW Insertion Loss Flatness (Downstream) +/- 0.4 dB, in 16 MHz BW
+/- 0.3 dB, in 8 MHz BW
+/- 0.6 dB, in 16 MHz BW
+/- 0.4 dB, in 8 MHz BW
Isolation (Upstream) >/= 65 dB
Goal: >/= 70 dB
>/= 65 dB
Goal: >/= 70 dB
Isolation (Downstream) >/= 65 dB
Goal: >/= 70 dB
>/= 65 dB
Goal: >/= 70 dB
Switch Output Transient (Upstream)
Includes switch bounce
< -36 dBmV < -36 dBmV Switch Output Transient (Downstream)
Includes switch bounce
< -32 dBmV < -32 dBmV Failover Time
Includes all transients and settling times for the relays.
<50 ms <50 ms Power Requirements
Table 9 Power Requirements Parameter Specification Power Input DC Worldwide ranging DC (-40.5 to -72 V: -48 V nominal) Power Input AC Worldwide ranging AC 90 to 240 VAC, 47 to 63 Hz Power Consumption Maximum (DC): 30 W
Maximum (AC): 30 W
AC Input Plug IEC320 connector DC Input Connection Three terminal DC connector, Phoenix contact
14 AWG (2.5 mm2) minimum recommended
Part Numbers
Cisco UBR-RFSW-ADV Components Part Numbers and Product Identifiers
Table 10 Cisco UBR-RFSW-ADV Components Part Numbers and Product Identifiers Component Aeroflex/Weinschel Part Number Cisco Part Number PID Cisco UBR-RFSW-ADV — — UBR-RFSW-ADV Complete upstream and downstream solution model of the Cisco UBR-RFSW-ADV 10018-1 74-7790-01 RFSW-ALL-UPDWNSTRM Upstream-only model of the Cisco UBR-RFSW-ADV 10018-2 74-7791-01 RFSW-UPSTREAM-ONLY Downstream working switch card 193-5420-000 74-7761-01 RFSW-ADV-DS-SWTCH, RFSW-ADV-DS-SWTCH= Downstream protect switch card 193-5421-000 74-7762-01 RFSW-ADV-DS-PRTCT, RFSW-ADV-DS-PRTCT= Downstream interconnect card 193-5422-000 74-7764-01 RFSW-ADV-DS-INTER, RFSW-ADV-DS-INTER= Upstream working switch card 193-5430-000 74-7759-01 RFSW-ADV-US-SWTCH, RFSW-ADV-US-SWTCH= Upstream protect switch card
193-5431-000
74-7760-01
RFSW-ADV-US-PRTCT, RFSW-ADV-US-PRTCT=
Upstream interconnect card
193-5432-000
74-7763-01
RFSW-ADV-US-INTER, RFSW-ADV-US-INTER=
Upstream interconnect switch card
193-5434-000
74-7765-01
RFSW-ADV-US-INTSW, RFSW-ADV-US-INTSW=
Controller card
193-5440-000
—
RFSW-ADV-CONTRLLR, RFSW-ADV-CONTRLLR=
Power supply
NGRFSW015
—
RFSW-ADV-ACDCPWR, RFSW-ADV-ACDCPWR=
Rack-mount kit
NGRFSW022
53-3427-01
RFSW-ADV-RACKMNTK, RFSW-ADV-RACKMNTK=
Cable-management bracket
—
800-36565-01
RFSW-ADV-CABMGMT=
In addition to this document, the following documents and resources provide additional information related to Cisco UBR-RFSW-ADV.
- Cisco UBR Advanced RF Switch Hardware Installation Guide
- Cisco UBR Advanced RF Switch Software Configuration Guide
- Regulatory Compliance and Safety Information for the Cisco UBR Advanced RF Switch
- Release Notes for the Cisco UBR Advanced RF Switch
- Cisco uBR10012 Router Release Notes for Cisco IOS Release 12.2(33)SCG
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: http://www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Copyright © 2012, Cisco Systems, Inc. All rights reserved.
