Before you perform the procedures in this guide, we recommend that you:

• Read the safety guidelines in the next section and review the electrical safety and ESD-prevention guidelines in this guide.

• Ensure that you have all of the necessary tools and equipment.

• Ensure that the power and cabling requirements are in place at your installation site.

• Ensure that the equipment required to install the device is available.

• Ensure that your installation site meets the environmental conditions to maintain normal operation.

Before installing the device, you must consider power and cabling requirements that must be in place at your installation site, special equipment for installing the device, and the environmental conditions your installation site must meet to maintain normal operation.

The shipping package for the device is engineered to reduce the chances of product damage associated with routine material handling experienced during shipment:

• Device should always be transported or stored in its shipping package in the upright position.

• Keep the device in the shipping container until you have determined the installation site.

Note	Inspect all items for shipping damage. If an item appears damaged, contact a Cisco customer service representative immediately.

Note	Do not unpack the module until you are ready to install it. Keep the module in the shipping container to prevent accidental damage until you determine an installation site. Use the appropriate unpacking documentation included with the module.

Warning

IMPORTANT SAFETY INSTRUCTIONS This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071 SAVE THESE INSTRUCTIONS

Warning

Read the installation instructions before connecting the system to the power source. Statement 1004

Warning

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

Warning

Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040

Electrostatic discharge (ESD) damage occurs when electronic cards or components are improperly handled, and can result in complete or intermittent failures. All line cards consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the cards from ESD, use an antistatic strap each time you handle the modules. Handle the carriers by the edges only; never touch the cards or connector pins.

Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity from your body before you touch any of your system components. As you continue to work on your system, periodically touch an unpainted metal surface on the computer chassis.

The following are guidelines for preventing ESD damage:

• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Before removing a card from the chassis, connect the equipment end of the strap to the ESD plug at the bottom of the chassis below the power entry modules.

• Handle line cards by faceplates and carrier edges only; avoid touching the card components or connector pins.

• When removing a module, place the removed module component-side-up on an antistatic surface or in a static-shielding bag. If the module is to be returned to the factory, immediately place it in a static-shielding bag.

• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD voltages only on the body; ESD voltages on clothing can still cause damage.

• When transporting a sensitive component, place it in an antistatic container or packaging.

• Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench pads.

Caution

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

Caution

Always tighten the captive installation screws on all the system components when you are installing them. These screws prevent accidental removal of the module, provide proper grounding for the system, and help ensure that the bus connectors are properly seated in the backplane. To ensure proper grounding and mechanical support, the captive screws on the front cards should be tightened to 10-12 in-lbs and the rear PIC cards should be tightened to 6-8 in-lbs. Never use cordless or corded drills to tighten screws; power screwdrivers and hand tools are acceptable.

Follow these basic guidelines when you are 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 installing or removing 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. Never install equipment that appears damaged.

• Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.

In addition, use the following guidelines when working with any equipment that is disconnected from a power source, but is still connected to telephone wiring or other network cabling:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

• Use caution when installing or modifying telephone lines.

Warning

Statement 1001—Work During Lightning Activity Do not work on the system or connect or disconnect cables during periods of lightning activity.

The chassis is not intended to be moved frequently. Before you install the system, ensure that your site is properly prepared so that you can avoid having to move the chassis later to accommodate power sources and network connections.

Each time you lift the chassis or any heavy object, follow these guidelines:

• Ensure that your footing is solid, and balance the weight of the chassis between your feet.

• Lift the chassis slowly; never move suddenly or twist your body as you lift.

• Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your back muscles.

• Ensure all installed components in the chassis are secured.

• Always disconnect all external cables before lifting or moving the chassis.

The Cisco Remote PHY Shelf 7200 can be installed either front or mid rack-mount.

When planning your rack installation, consider the following guidelines:

• The Cisco Remote PHY Shelf 7200 requires a minimum of 7 rack units (12.25 inches or 31.12 cm) of vertical rack space. Measure the proposed rack location before mounting the chassis in the rack.

• Before using a particular rack, check for obstructions (such as a power strip) that could impair rack-mount installation. If a power strip does impair a rack-mount installation, remove the power strip before installing the chassis, and then replace it after the chassis is installed.

• Allow sufficient clearance around the rack for maintenance. If the rack is mobile, you can push it back near a wall or cabinet for normal operation and pull it out for maintenance (installing or moving cards, connecting cables, or replacing or upgrading components). Otherwise, allow 36 inches (91.44 cm) of clearance to remove field-replaceable units.

• Maintain a minimum clearance of 4 inches (10.16 cm) on the front and back sides of the chassis for the cooling air inlet and exhaust ports, respectively. Avoid placing the chassis in an overly congested rack. Also avoid placing large bundles of cables blocking air intakes or exhausts, or directly next to another equipment rack. The heated exhaust air from other equipment can enter the inlet air vents and cause an over temperature condition inside the device.

  

  Avoid placing the chassis in an overly congested rack or directly next to another equipment rack; otherwise, the heated exhaust air from the other equipment can enter the inlet air vents and cause a high temperature condition inside the router.

  Caution

  To prevent chassis overheating, never install a Cisco Remote PHY Shelf 7200 in an enclosed space that is not properly ventilated or air conditioned.

• Always install heavier equipment in the lower half of a rack to maintain a low center of gravity to prevent the rack from falling over.

• Install and use the cable-management accessories included with the router to keep cables organized and out of the way of the cards and processors. Ensure that cables from other equipment already installed in the rack do not impair access to the cards or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

• Ensure that cables from other equipment already installed in the rack do not impair access to the cards or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

• Provide an adequate chassis ground (earth) connection for your chassis.

This section contains site-planning information, and will help you plan for the installation of the Cisco Remote PHY Shelf 7200.

The following tools and equipment are recommended as the minimum necessary equipment to install the Cisco Remote PHY Shelf 7200. You may need additional tools and equipment to install associated equipment and cables. You may also require test equipment to check electronic and optical signal levels, power levels, and communications links.