To see translations of the warnings that appear in this publication, see the Regulatory Compliance and Safety Information for the Cisco NCS 540 Series Router document.

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety: This unit should be mounted at the bottom of the rack if it is the only unit in the rack. When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006.

Warning

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017.

Warning

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

Warning

To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 149°F (65°C). Statement 1047.

Warning

The chassis should be mounted on a rack that is permanently affixed to the building. Statement 1049.

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.

Warning

This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use type. Statement 294.

Warning

This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Statement 340.

Warning

This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Statement 287.

The following guidelines help ensure your safety and protect the equipment. This list does not include all the potentially hazardous situations. Therefore, you should be on alert.

• Before moving the system, always disconnect all the power cords and interface cables.
• Never assume that power is disconnected from a circuit; always check.
• Before and after installation, keep the chassis area clear and dust free.
• Keep tools and assembly components away from walk areas where you or others could trip over them.
• Do not work alone if potentially hazardous conditions exist.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
• Do not wear loose clothing that may get caught in the chassis.
• When working under conditions that may be hazardous to your eyes, wear safety glasses.

Be sure to observe the following safety precautions when you work on the router.

To see the translations of the warnings that appear in this publication, see the Regulatory Compliance and Safety Information for the Cisco NCS 540 Series Router document.

Warning

Class 1 laser product. Statement 1008

Warning

Do not stare into the beam or view it directly with optical instruments. Statement 1011

Warning

Invisible laser radiation present. 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 is intended to be grounded. Ensure that the host is connected to earth ground during normal use. Statement 39

Warning

Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43

Warning

An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the connector(s) or terminal block(s). Statement 122

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001

Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003

Warning

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

Warning

This product relies on the building’s installation for short-circuit (overcurrent) protection. For a DC installation, ensure that the branch circuit breaker is rated a maximum 15A for DC systems. For AC systems, 15A for voltages greater than 200Vac; 20A for voltages below 127Vac. Statement 1005

Warning

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017

Warning

Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018

Warning

The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019

Warning

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ45 connectors. Use caution when connecting cables. Statement 1021

Warning

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022

Warning

To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord. Statement 1023

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

Use copper conductors only. Statement 1025

Warning

This unit might have more than one power supply connection. All connections must be removed to de-energize the unit. Statement 1028

Warning

Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV) requirements in IEC 60950 based safety standards. Statement 1033

Warning

Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement, or near a swimming pool. Statement 1035

Warning

This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both. Statement 1043

Warning

When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074 When working on equipment powered by electricity, follow these guidelines:

• Locate the room’s emergency power-off switch. If an electrical accident occurs, you will be able to quickly turn off the power.

• Before starting work on the system, turn off the DC main circuit breaker and disconnect the power terminal block cable.

• Before doing the following, disconnect all power:

  • Working on or near power supplies

  • Installing or removing a router chassis or network processor module

  • Performing most hardware upgrades

• 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.

• Never assume that power is disconnected from a circuit; always check.

• Never perform any action that creates a potential hazard to people or makes the equipment unsafe.

• If an electrical accident occurs, proceed as follows:

  • Use caution, and do not become a victim yourself.

  • Turn off power to the router.

  • If possible, send another person to get medical aid. Otherwise, determine the condition of the victim, and then call for help.

  • Determine whether the person needs rescue breathing or external cardiac compressions; then take appropriate action.

Check the power at your site to ensure that you are receiving clean power (free of spikes and noise). Install a power conditioner, if necessary.

Warning

This equipment needs to be grounded. Use a green and yellow 6 AWG ground wire to connect the host to earth ground during normal use. Statement 383

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD may occur when electronic printed circuit cards are improperly handled and can cause complete or intermittent failures. When removing and replacing modules, always follow ESD prevention procedures:

• Ensure that the router chassis is electrically connected to earth ground.
• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. To channel unwanted ESD voltages safely to ground, connect the clip to an unpainted surface of the chassis frame. To guard against ESD damage and shocks, the wrist strap and cord must operate effectively.
• If no wrist strap is available, ground yourself by touching a metal part of the chassis.
• Handle components by their handles or edges only.

Note	For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. It should be between 1 and 10 Mohm.

Observe the following general precautions when using and working with your router:

• Keep your system components away from radiators and heat sources, and do not block cooling vents.

• Do not spill food or liquids on your system components, and never operate the product in a wet environment.

• Do not push any objects into the openings of your system components. Doing so can cause fire or electric shock by shorting out interior components.

• Position system cables and power supply cable carefully. Route system cables, the power supply cable, and plug so that they are not stepped on or tripped over. Be sure that nothing else rests on your system component cables or power cable.

• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local and national wiring rules.

• If you turn off your system, wait at least 30 seconds before turning it on again to avoid damage to the system components.

Use the following checklist to perform and account for all the site planning tasks described in this chapter:

• The site meets the environmental requirements.
• The site’s air conditioning system can compensate for the heat dissipation of the router.
• The floor space that the router occupies can support the weight of the system.
• Electrical service to the site complies with the requirements.
• The electrical circuit servicing the router complies with the requirements.
• Consideration has been given to the console port wiring and limitations of the cabling involved, according to TIA/EIA-232F.
• The router Ethernet cabling distances are within the prescribed limitations.
• The equipment rack in which you plan to install the router complies with prescribed requirements.
• The following factors have been carefully considered when selecting the location of the rack: safety, ease of maintenance, and proper airflow.

The router requires specific environmental operating conditions. Temperature, humidity, altitude, and vibration can affect the performance and reliability of the router. The following sections provide specific information to help you plan for the proper operating environment.

The router is designed to meet the industry EMC, safety, and environmental standards described in the Regulatory Compliance and Safety Information for the Cisco NCS 540 Series Router document.

The router is a passive-cooled equipment with no fans.

• To ensure thermal performance of the product in a horizontal mounting orientation, an airflow of 1 m/s must be maintained around the product as shown in above figure.

• In the vertical mounting orientation, 60% rack space must be open at top of the product, while sides must be free from any airflow obstructions.

• If any port (RJ-45, SFP, or USB) is not used, it is recommended that such ports be covered by using the dust caps that came with the product.

Ensure that the floor under the rack supporting the routers is capable of supporting the combined weight of the rack and all the other installed equipment.

To assess the weight of a fully configured routers, see the Cisco Network Convergence System 540 Small Density Passive Cooled Routers Datasheet.

For additional information about floor loading requirements, see the GR-63-CORE, Network Equipment Building System (NEBS) Requirements: Physical Protection document (www.telecom-info.telcordia.com).

The router has specific power and electrical wiring requirements. Adhering to these requirements ensures reliable operation of the system. Follow these precautions and recommendations when planning your site power for the router:

• The redundant power option provides a second, identical power supply to ensure that power to the chassis continues uninterrupted if one power supply fails or input power on one line fails.
• Connect each of the two power supplies to a separate input power source. If you fail to do this, your system might be susceptible to total power failure due to a fault in the external wiring or a tripped circuit breaker.
• To prevent a loss of input power, be sure that the total maximum load on each circuit supplying the power supplies is within the current ratings of the wiring and the breakers.
• Check the power at your site before installation, and periodically after installation to ensure that you are receiving clean power. Install a power conditioner, if necessary.
• Provide proper grounding to avoid personal injury and damage to the equipment due to lightning striking power lines or due to power surges. The chassis ground must be attached to a central office or other interior ground system.

Caution

This product requires short-circuit (overcurrent) protection to be provided as part of the building installation. Install only in accordance with national and local wiring regulations.

Note

The Cisco N540-6Z14S-SYS-D routers installation must comply with all the applicable codes, and is approved for use with copper conductors only. The ground bond-fastening hardware should be of compatible material and preclude loosening, deterioration, and electrochemical corrosion of hardware and joined material. Attachment of the chassis ground to a central office or other interior ground system must be made with a 6-AWG gauge wire copper ground conductor at a minimum.

For information on power specifications, see the Cisco Network Convergence System 540 Small Density Passive Cooled Routers Datasheet.

This section contains guidelines for wiring and cabling at your site. When preparing your site for network connections to the router, consider the type of cable required for each component, and the cable limitations. Consider the distance limitations for signaling, ElectroMagnetic Interference (EMI), and connector compatibility. Possible cable types are fiber, thick or thin coaxial, foil twisted-pair, or unshielded twisted-pair cabling.

Also consider any additional interface equipment you need, such as transceivers, hubs, switches, modems, Channel Service Units (CSU), or Data Service Units (DSU).

Before you install the router, have all the additional external equipment and cables on hand. For information about ordering, contact a Cisco customer service representative.

The extent of your network and the distances between the network interface connections depend, in part, on the following factors:

• Signal type

• Signal speed

• Transmission medium

The distance and rate limits referenced in the following sections are the IEEE-recommended maximum speeds and distances for signaling purposes. Use this information as a guideline when planning your network connections prior to installing the router.

If wires exceed the recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices. If you have had problems of this sort in the past, you may want to consult experts in electrical surge suppression and shielding.