Preparing for Installation
This chapter describes the general equipment, safety, and site preparation requirements for installing the Cisco PA-T3/E3-EC port adapter. This chapter contains the following sections:
•Software and Hardware Requirements
•Checking Hardware and Software Compatibility
•75-Ohm In-Line Coaxial Attenuator
Required Tools and Equipment
You need the following tools and parts to install a port adapter. If you need additional equipment, contact a service representative for ordering information.
•Cisco PA-T3/E3-EC(=) or the Cisco PA-2T/E3-EC(=) port adapter
•Number 2 Phillips screwdriver
•Your own electrostatic discharge (ESD)-prevention equipment or the disposable grounding wrist strap included with all upgrade kits, field-replaceable units (FRUs), and spares
•Antistatic mat
•Antistatic container
•Cisco 7200 VXR routers Port Adapter Jacket Card for installation of a port adapter in the I/O controller slot (requires an NPE-G1 or NPE-G2) (optional)
•Attenuator kit (optional)
•Cables (See the "T3 Port Specifications" section on page 1-3, "E3 Cable Specifications" section on page 1-3 and "Cables and Connectors" section on page 3-7.)
Software and Hardware Requirements
The PA-T3/E3-EC and PA-2T/E3-EC require Cisco IOS Release 12.4(15)T1 or a later release of Cisco IOS Release 12.4T.
The PA-T3/E3-EC and PA-2T/E3-EC are supported on the Cisco 7301 router, the Cisco 7201 router, and the Cisco 7204VXR and Cisco 7206 VXR routers with the NPE-400, NPE-G1, and NPE-G2.
Additionally, the PA-T3/E3-EC and PA-2T/E3-EC are supported on the Port Adapter Jacket Card in the Cisco 7204 VXR and Cisco 7206 VXR routers.
For configuration guidelines on port adapters in the Cisco 7200 VXR routers, refer to the Cisco 7200 Series Port Adapter Hardware Configuration Guidelines.
Checking Hardware and Software Compatibility
To check the minimum software requirements of Cisco IOS software with the hardware installed on your router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether modules within a system are compatible, but it does provide the minimum Cisco IOS requirements for individual hardware modules or components.
Note Access to this tool is limited to users with Cisco.com login accounts.
To access Software Advisor, click Login at Cisco.com and go to Support > Tools and Resources > Software Advisor. You can also access the tool by pointing your browser directly to http://www.cisco.com/en/US/support/tsd_most_requested_tools.html.
Choose a product family or enter a specific product number to search for the minimum supported software release needed for your hardware.
75-Ohm In-Line Coaxial Attenuator
A 75-ohm in-line coaxial attenuator may be required to tune the signal between the PA-T3/E3-EC and the far-end equipment if the port adapter is experiencing line code violations (LCVs). LCVs occur when the far-end equipment transmit signal saturates the front-end receiver of the PA-T3/E3-EC.
Cisco offers an attenuator kit (ATTEN-KIT-PA=) that contains five attenuators with fixed values ranging from 3 dB to 20 dB. For more information on the attenuator kit, see the Installing the 75-Ohm In-line Coaxial Attenuator on Cisco Port Adapters at http://www.cisco.com/en/US/docs/interfaces_modules/port_adapters/install_upgrade/cables_and_attenuator/75ohm_coax_atten_install/12884att.html
Safety Guidelines
This section provides safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.
Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement.
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.
•Disconnect all power and external cables before moving a chassis.
•Do not work alone when potentially hazardous conditions exist.
•Never assume that power has been disconnected from a circuit; always check.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe; carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Port adapters and processor modules comprise printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, use a preventive antistatic strap during handling.
Following are guidelines for preventing ESD damage:
•Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
•Connect the equipment end of the strap to an unfinished chassis surface.
•When installing a component, use any available ejector levers or captive installation screws to properly seat the bus connectors in the backplane or midplane. These devices prevent accidental removal, provide proper grounding for the system, and help to ensure that bus connectors are properly seated.
•When removing a component, use any available ejector levers or captive installation screws to release the bus connectors from the backplane or midplane.
•Handle carriers by available handles or edges only; avoid touching the printed circuit boards or connectors.
•Place a removed board component-side-up on an antistatic surface or in a static shielding container. If you plan to return the component to the factory, immediately place it in a static shielding container.
•Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components from ESD voltages on the body; ESD voltages on clothing can still cause damage.
•Never attempt to remove the printed circuit board from the metal carrier.
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
•Turn the television or radio antenna until the interference stops.
•Move the equipment to one side or the other of the television or radio.
•Move the equipment farther away from the television or radio.
•Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)
Note The Cisco PA-T3/E3-EC port adapter has been designed to meet these requirements. Modifications to this product that are not authorized by Cisco Systems, Inc. could void the various approvals and negate your authority to operate the product.