• 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 in potentially hazardous conditions.
• 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.

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.

Caution

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

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 guidelines can prevent 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. Ensure that the chassis or rack or both have a grounding cable installed.
• Handle line cards by the faceplate and carrier edges only; avoid touching the card components or any connector pins.
• When removing a card, place the removed module component-side-up on an antistatic surface or in a static-shielding bag. If the module will 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 on the body only; ESD voltages on clothing can still cause damage.
• When transporting a sensitive component, first place it 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 megohms.

This section provides information about environmental, power, cabling, and mounting requirements. Ensure that you have met all of these requirements before you install your product.

• If this equipment plugs into an outlet, the outlet must be near this equipment, and must be easily accessible.

• Connect this equipment only to the power sources that are identified on the equipment-rating label, which is normally located close to the power inlet connector.

• This equipment may have two power sources. Be sure to disconnect all power sources before working on this equipment.

• If this equipment does not have a main power switch, the power cord connector serves as the disconnect device.

• Always disconnect the plug or the connector to disconnect a cable. Do not pull the cable itself.

• Do not stare into an unmated fiber or at any mirror-like surface that could reflect light emitted from an unterminated fiber.

• Do not view an activated fiber with optical instruments such as eye loupes, magnifiers, or microscopes.

• Use safety-approved optical fibers to maintain compliance with applicable laser safety requirements.

Warning

This equipment is a Class 1 laser product. Statement 1008

Warning

Invisible laser radiation present. Avoid direct exposure to the laser light source. Statement 1016

Warning

Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051

Warning

This equipment must be grounded. 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. Statement 1024.

Warning

Avoid personal injury and damage to this equipment. An unstable mounting surface may cause this equipment to fall.

The Cisco GS7000 node supports two types of mounting. Consider the following guidelines for mounting the Cisco GS7000 node:

You need the following tools to install and cable the Cisco GS7000 node:

• Torque wrench capable of 5 to 12 ft-lbs (6.8 to 16.3 Nm)

• 4-inch to 6-inch extension for torque wrench

• 1/8-inch slot screwdriver for the F-connectors

• 1/2-inch socket for the strand clamp bolts

• #2 Phillips-head screwdriver for the grounding screw

• Heavy-duty wire cutters or snips for cutting the cable

• Deburring tool for filing the rough edges

You need the following tools to install and cable the Cisco CCAP RF line card:

• T-10 Torx driver tool

• 1/4-inch flathead screwdriver

• Blank Cisco cBR-8 slot cover (if required)

• ESD-preventive wrist strap

• Antistatic surface, such as a mat or antistatic bag

The table below provides the torque specifications for the fasteners used with the Cisco GS7000 Node.

Fastener	Torque Specification	Illustration
Strand clamp mounting bracket bolts	5 ft-lb to 8 ft-lb (6.8 Nm to 10.8 Nm)
Housing closure bolts	5 ft-lb to 12 ft-lb (6.8 Nm to 16.3 Nm)
5/8" port plugs	6.7 ft-lb (9 Nm)
PG11-to-5/8" adapter	4.63 ft-lb (6.25 Nm)
RJ-45 port PG16 plug	5.55 ft-lb (7.5 Nm)
Power port PG11 gland	Plastic: 3 ft-lb (4 Nm) Metal: 4.63 ft-lb (6.25 Nm)
RJ-45 port PG16 gland	Plastic: 4.44 ft-lb (6 Nm) Metal: 5.5 ft-lb (7.5 Nm)
PG11 F-connector	4.63 ft-lb (6.25 Nm)
5/8" F-connector	6.7 ft-lb (9 Nm)