Read the Regulatory Compliance and Safety Information document before installing the Provider Connectivity Assurance Sensor F25.

Caution

Do not open the appliance except under direction from TAC.

Take note of the following warnings:

Warning

Statement 1071—Warning Definition IMPORTANT SAFETY INSTRUCTIONS Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Read the installation instructions before using, installing, or connecting the system to the power source. Use the statement number at the beginning of each warning statement to locate its translation in the translated safety warnings for this device. SAVE THESE INSTRUCTIONS

Note	Statement 407—Japanese Safety Instruction You are strongly advised to read the safety instruction before using the product. https://www.cisco.com/web/JP/techdoc/pldoc/pldoc.html When installing the product, use the provided or designated connection cables/power cables/AC adapters.

Warning

Statement 1005—Circuit Breaker This product relies on the building’s installation for short-circuit (overcurrent) protection. To reduce risk of electric shock or fire, ensure that the protective device is rated not greater than: AC 20 A/DC 40 A

Warning

Statement 1073—No User-Serviceable Parts There are no serviceable parts inside. To avoid risk of electric shock, do not open.

Warning

Statement 1074—Comply with Local and National Electrical Codes To reduce risk of electric shock or fire, installation of the equipment must comply with local and national electrical codes.

Warning

Statement 1089—Instructed and Skilled Person Definitions An instructed person is someone who has been instructed and trained by a skilled person and takes the necessary precautions when working with equipment. A skilled person or qualified personnel is someone who has training or experience in the equipment technology and understands potential hazards when working with equipment. There are no serviceable parts inside. To avoid risk of electric shock, do not open.

Warning

Statement 1091—Installation by an Instructed Person Only an instructed person or skilled person should be allowed to install, replace, or service this equipment. See statement 1089 for the definition of an instructed or skilled person. There are no serviceable parts inside. To avoid risk of electric shock, do not open.

Warning

Statement 9001—Product Disposal Ultimate disposal of this product should be handled according to all national laws and regulations.

Warning

Before working on a chassis, be sure the power cord is unplugged.

Read the Regulatory Compliance and Safety Information document before installing the chassis.

Follow these guidelines when working on equipment powered by electricity:

• Do not work alone if potentially hazardous conditions exist anywhere in your work space.

• Never assume that power is disconnected; always check.

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, frayed power cords, and missing safety grounds.

• Use the chassis within its marked electrical ratings and product usage instructions.

• The chassis is equipped with an AC-input power supply, which is shipped with a three-wire electrical cord with a grounding-type plug that fits into a grounding-type power outlet only. Do not circumvent this safety feature. Equipment grounding should comply with local and national electrical codes.

ESD occurs when electronic components are improperly handled, and it can damage equipment and impair electrical circuitry, which can result in intermittent or complete failure of your equipment.

Always follow ESD-prevention procedures when removing and replacing components. Ensure that the chassis is electrically connected to an earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground ESD voltages. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.

For safety, periodically check the resistance value of the antistatic strap, which should be between one and 10 megohms.

When installing the chassis, consider the following:

• Check the power at the site before installing the chassis to ensure that it is free of spikes and noise. Install a power conditioner, if necessary, to ensure proper voltages and power levels in the appliance-input voltage.

• Install proper grounding for the site to avoid damage from lightning and power surges.

• The chassis does not have a user-selectable operating range. Refer to the label on the chassis for the correct appliance input-power requirement.

• Several styles of AC-input power supply cords are available for the chassis; make sure that you have the correct style for your site.

• If you are using dual redundant (1+1) power supplies, we recommend that you use independent electrical circuits for each power supply.

• Install an uninterruptible power source for your site, if possible.

Consider the following when planning a rack configuration:

• Standard 19-inch (48.3 cm) 4-post EIA rack with mounting rails that conform to English universal hole spacing according to section 1 of ANSI/EIA-310-D-1992.

• The rack-mounting posts need to be 2 to 3.5 mm thick to work with the slide rail rack mounting.

• If you are mounting a chassis in an open rack, make sure that the rack frame does not block the intake or exhaust ports.

• If your rack includes closing front and rear doors, the doors must have 65 percent open perforated area evenly distributed from top to bottom to permit adequate airflow.

• Be sure enclosed racks have adequate ventilation. Make sure that the rack is not overly congested as each chassis generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air.

• In an enclosed rack with a ventilation fan in the top, heat generated by equipment near the bottom of the rack can be drawn upward and into the intake ports of the equipment above it in the rack. Ensure that you provide adequate ventilation for equipment at the bottom of the rack.

• Baffles can help to isolate exhaust air from intake air, which also helps to draw cooling air through the chassis. The best placement of the baffles depends on the airflow patterns in the rack. Experiment with different arrangements to position the baffles effectively.

Observe these safety guidelines:

• Keep the area clear and dust free before, during, and after installation.

• Keep tools away from walkways, where you and others might trip over them.

• Do not wear loose clothing or jewelry, such as earrings, bracelets, or chains that could get caught in the chassis.

• Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

• Never attempt to lift an object that is too heavy for one person.

See Hardware Specifications for information about physical specifications.

To avoid equipment failures and reduce the possibility of environmentally caused shutdowns, plan the site layout and equipment locations carefully. If you are currently experiencing shutdowns or unusually high error rates with your existing equipment, these considerations may help you isolate the cause of failures and prevent future problems.