Cisco Systems PA-4T manual FCC Class B Compliance, Preventing Electrostatic Discharge Damage

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FCC Class B Compliance

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 component board-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.

For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms.

FCC Class B Compliance

The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

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.

2-6PA-4T+ Synchronous Serial Port Adapter Installation and Configuration

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Contents Corporate Headquarters Copyright 1997-1999 Cisco Systems, Inc All rights reserved Overview Port Adapter OverviewPA-4T Port Adapter-Faceplate View Synchronous Serial Overview Router# show diagSerial Interface Specifications Cables and Pinouts PA-4T+ Receptacles and CablesSerial Port Adapter Cables EIA/TIA-232 Connections EIA/TIA-449 Connections PA-4T+ Port Adapter Cable Pinouts EIA-530 ConnectionsRTS/CTS CTS/RTS DSR/DTR DTR/DSR RTS CTS DSR SD+ Shield ground RTS/CTS CTS/RTS DSR/DTR DTR/DSR DCD/LL Rlsd LL/DCD LEDs LEDs on the PA-4T+-Horizontal OrientationLEDs Preface ObjectivesDocument Organization Related DocumentationCisco Connection Online Documentation CD-ROM Preparing for Installation Tools and Parts RequiredSoftware and Hardware Requirements Router Platform Recommended Minimum Cisco IOS ReleaseSoftware and Hardware Requirements Safety Guidelines Safety WarningsTelephone Wiring Guidelines Electrical Equipment GuidelinesFCC Class B Compliance Preventing Electrostatic Discharge DamageFCC Class B Compliance FCC Class B Compliance Installation Overview VIP2 and the PA-4T+ Port AdapterVIP2-15 or VIP2-40 with a PA-4T+ in Port Adapter Slot Removing a Port Adapter Installing a Port Adapter Location of Port Adapter Screw-Partial Port Adapter ViewAligning a Port Adapter in a Port Adapter Slot H3152 Cisco 7206 with a PA-4T+ Installed Cisco 7200 Series PA-4T+ Port AdapterPort adapter Handle Lever unlocked Position Handling a Port Adapter Placing the Port Adapter Lever in the Locked Position-Cisco Cisco uBR7200 Series and the PA-4T+ Port Adapter Port adapters Port adapters Port adapter lever in unlocked position Inside slot guide PC board Metal carrier Placing the Port Adapter Lever in the Locked Position Installing a Port Adapter Cisco 7100 Series PA-4T+ Port Adapter Cisco 7120 Series Router-Port Adapter Slot 3 LocationCisco 7140 Series Router-Port Adapter Slot 4 Location Installing a Port Adapter Guides Installing the PA-4T+ Interface Cables Attaching PA-4T+ Port Adapter Interface CablesReplacing PA-4T+ Port Adapter Cables Incorrect, cable upside downFor a VIP2, use the following commands Router# copy running-config startup-config Configuring the PA-4T+ Interfaces Using the Exec Command InterpreterCisco 7200 Series and Cisco uBR7200 Series Ports PA-4T+ Interface Port Address Example-Cisco uBR7246 VIP2 Ports PA-4T+ Interface Port Address Example-CiscoShutting Down an Interface Cisco 7100 Series PortsEnter the shutdown command as follows Router# show interfaces serial 1/0 Performing a Basic Configuration Configure additional interfaces as requiredConfiguring Timing Clock Signals Setting the Clock RateInverting the Clock Signal Inverting the Data Signal Configuring Half-Duplex and Binary Synchronous Communications Configuring Half-Duplex Checking the Configuration Using show Commands to Verify the New Interface StatusConfiguring Bisync Using show Commands to Display Interface Information Hardware is M4T Internet address isChecking the Configuration Router# show version VIP2 show interfaces Command Minute output rate 0 bits/sec, 0 packets/sec System image file is image-name, booted via tftp from Using ping and loopback Commands Checking the Configuration