Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
Chapter 2 - Preparing for Installation
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Preparing for Installation

Table Of Contents

Preparing for Installation

Tools and Equipment

Safety and Compliance

General Safety Guidelines

Compliance and Safety Information

Laser Safety

Lifting Guidelines

Preventing Electrostatic Discharge Damage

Attaching an ESD-Preventive Strap

Safety with Electricity

Site Requirement Guidelines

Environmental Guidelines

Airflow

Temperature and Humidity

Rack-Mounting Guidelines

Types of Equipment Racks

Equipment Dimensions and Site Layout

Ventilation

Power Connection Guidelines

Power Connection Guidelines for AC-Powered Routers

Power Connection Guidelines for DC-Powered Routers

Grounding Connections

Site Wiring

Electromagnetic Interference

Distance Limitations

Unpacking and Repacking the Router

Site Preparation Checklist


Preparing for Installation


This chapter provides specific information about preparing your site for the installation of Cisco 12006 and Cisco 12406 Routers. The following sections are included in this chapter:

Tools and Equipment

Safety and Compliance

Preventing Electrostatic Discharge Damage

Safety with Electricity

Site Requirement Guidelines

Unpacking and Repacking the Router

Site Preparation Checklist

Before installing a Cisco 12006 Router or Cisco 12406 Router, you should have the following information:

Power and cabling requirements that must be in place at your installation site

Equipment you will need to install the router

Environmental conditions your installation site must meet to maintain normal operation


Note Do not unpack the router until you are ready to install it.


Tools and Equipment

Cisco 12006 and Cisco 12406 Routers can be installed with a minimum number of tools. The following tools are required:

1/4-inch and 3/16-inch flat-blade screwdrivers

9/16-inch wrench

10-mm wrench (either open-end or socket)

2-mm allen wrench

ESD-preventive wrist strap

Antistatic mat

Tape measure

Wire cutters

Pliers

Safety and Compliance

The following guidelines help to ensure your safety and protect the equipment. This section does not include every potentially hazardous situation, so be alert.

General Safety Guidelines

Compliance and Safety Information

Laser Safety

Lifting Guidelines

General Safety Guidelines

Never attempt to lift an object that might be too heavy for you to lift by yourself.


Caution Do not attempt to lift the chassis by the blower module handle. The blower module handle is intended for lifting the blower module only when it is disconnected from the chassis.

Always disconnect the power source and unplug all power cables before lifting, moving, or working on the router.

Keep the work area clear and dust free during and after installation.

Keep tools and router components away from walkways and equipment rack aisles.

Do not wear loose clothing, jewelry (including rings and chains), or other items that could get caught in the router.

Fasten your tie or scarf and sleeves.

Cisco equipment operates safely when it is used in accordance with its electrical ratings and product usage instructions.

Do not work alone if potentially hazardous conditions exist.

Always unplug the power cables when performing maintenance or working on the router, unless the replacement part is hot swappable and designed for online insertion and removal (OIR).

The installation of the router should be in compliance with national and local electrical codes: in the United States, National Fire Protection Association (NFPA) 70, United States National Electrical Code; in Canada, Canadian Electrical Code, part I, CSA C22.1; in other countries, International Electrotechnical Commission (IEC) 364, part 1 through part 7.

Before installing, configuring, or maintaining the router, review the safety warnings listed in the Regulatory Compliance and Safety Information for the Cisco 12000 Series Router (Document Number 78-4347-xx) that accompanied your router.

Cisco 12006 and Cisco 12406 Routers with an AC power distribution unit (PDU) and AC-input power supplies are shipped with AC power cords equipped with three-wire electrical grounding-type plugs that will fit into only a grounding-type power outlet. This is a safety feature. The equipment grounding should be in accordance with local and national electrical codes.

Cisco 12006 and Cisco 12406 Routers with a DC PDU and DC-input power entry modules (PEMs) require an external DC circuit breaker for each DC power source:

Original series Cisco 12006 and Cisco 12406 router input power shall not draw more than 45A max. @ 40.5VDC form each DC power source.

Enhanced series Cisco 12006 and Cisco 12406 router input power shall not draw more than 60A max. @ 40.5VDC from each DC power source.

This circuit breaker should protect against short-circuit and overcurrent faults in accordance with United States National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, CSA C22.1 (Canada), and IEC 364 (other countries).

Only a DC power source that complies with the safety extra-low voltage (SELV) requirements in UL 1950, CSA-C22.2 No. 950, EN60950, ACA TS001, AS/NZS 3260, and IEC60950 should be connected to a Cisco 12006 or Cisco 12406 Router with DC PDU and DC-input PEMs.

Cisco 12006 or Cisco 12406 Routers configured with DC-input PEMs should be installed in a restricted access area in accordance with Articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.

Cisco 12006 or Cisco 12406 Routers configured with a DC PDU shall have a readily accessible disconnect device incorporated in the fixed wiring.

Compliance and Safety Information

The Cisco 12006 and Cisco 12406 routers are designed to meet the regulatory compliance and safety approval requirements. Refer to the Regulatory Compliance and Safety Information for the Cisco 12000 Series Router (Document Number 78-4347-xx) if you require additional compliance information (see "Cisco Technical Support and Documentation Website" section on page -xxfor site information).

Laser Safety

Single-mode Cisco 12000 Series Router line cards are equipped with lasers. The lasers emit invisible radiation. Do not stare into open line card ports. Observe the following warning to prevent eye injury:


Warning Avoid exposure to laser radiation. Do not stare into an open aperture, because invisible laser radiation may be emitted from the aperture when a cable is not inserted in the port.


Lifting Guidelines

A fully configured Cisco 12006 or Cisco 12406 Router weighs approximately 205 pounds (93 kg). Before you install the router, ensure that your site is properly prepared so that you will not have to move the router later to accommodate power source and/or network connections.


Caution To prevent damage, never attempt to lift or tilt the router chassis using the handles on the blower module or line cards. These handles do not support the weight of the chassis.

Whenever you lift any heavy or awkward equipment, follow these precautions to avoid injury to yourself or damage to the equipment:

When using moving equipment, such as a safety hand truck, pallet jack, or forklift to move the equipment to another location, use only moving equipment that is capable of preventing the router from tipping.

Have a second person help lift the equipment; avoid lifting the equipment alone.

Ensure that your footing is solid; balance the weight of the object between your feet.

Lift the equipment 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 equipment, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.

Always disconnect all external cables before lifting or moving the router.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage to circuit boards can occur if proper grounding is not established. The boards can produce intermittent or complete failures if they are mishandled.

When handling circuit boards, observe the following guidelines to prevent ESD damage:

Always use an ESD-preventive ankle or wrist strap and ensure that the strap makes adequate contact with your skin.

The ankle or wrist strap protects equipment from ESD voltages on the body only; ESD voltages on clothing can still cause damage to electronic components.

Attaching an ESD-Preventive Strap

Attach an ESD antistatic strap to your body and to an open metal part of the chassis on the Cisco 12006 and Cisco 12406 Router (Figure 2-1).

Figure 2-1 Attaching an ESD-Preventive Strap to the Cisco 12006 and Cisco 12406 Router Chassis


Caution Periodically check the resistance value of the antistatic wrist strap. The resistance measurement should be between 1 and 10 megohms.

Safety with Electricity

The line cards, redundant clock and scheduler cards, switch fabric cards, alarm cards, blower module, and redundant power modules can be removed and replaced while the router is operating without presenting an electrical hazard or causing damage to the router.

Follow these basic guidelines when working with any electrical equipment:

Before beginning any procedures requiring access to the interior of the router, locate the emergency power-off switch for the room in which you are working.

Disconnect all external cables before installing or removing a router.

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.

If an electrical accident does occur, proceed as follows:

Use caution; do not become a victim yourself. Disconnect power to the router.

If possible, send another person to get medical aid; otherwise, assess the condition of the victim and then call for help.

Determine if the person needs rescue breathing or external cardiac compressions, then take appropriate action.

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

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.

Site Requirement Guidelines

This section provides the site requirement guidelines that you must consider before installing Cisco 12006 and Cisco 12406 Routers:

Environmental Guidelines

Rack-Mounting Guidelines

Power Connection Guidelines

Site Wiring

Environmental Guidelines

This section offers guidelines for operating Cisco 12006 and Cisco 12406 Routers in various environments. The following environmental considerations are discussed:

Airflow

Temperature and humidity

Airflow

The air circulation system for Cisco 12006 and Cisco 12406 Routers consists of one blower module mounted at the rear of the chassis. The blower module maintains acceptable operating temperatures for the internal components by drawing cooling air in through replaceable air filters located on the right side of the chassis. Air circulates through the card cage and exhausts at the rear of the chassis.

Observe the following guidelines when selecting a site in which to install Cisco 12006 and Cisco 12406 Routers:

Dust free—The site should be as dust free as possible. Dusty environments can clog the air filter or power supply intake vents, reducing the cooling air flow through the router. This can cause an overtemperature condition in the router.

Air flow—Allow sufficient air flow by maintaining a minimum of 6 inches (15.24 cm) of clearance at both the inlet and exhaust openings on the chassis and the power modules. If the air flow is blocked or restricted, or if the inlet air is too warm, an overtemperature condition can occur within the router. Under extreme conditions, the environmental monitoring system shuts down the power to protect the router components.

Temperature and Humidity

The operating environmental site requirements are listed in Appendix A, "Technical Specifications." The temperature and humidity ranges listed are those within which Cisco 12006 and Cisco 12406 Routers will continue to operate. You can maintain normal operation by anticipating and correcting environmental irregularities before they approach critical values.

The environmental monitoring functionality built into Cisco 12006 and Cisco 12406 Routers protects the system and components from potential damage from overvoltage and overtemperature conditions. To assure normal operation and avoid maintenance difficulty, plan and prepare your site before you install the router.

Rack-Mounting Guidelines

Before installing Cisco 12006 and Cisco 12406 Routers in a rack, consider the general rack-mounting guidelines in the following sections.

Types of Equipment Racks

Cisco 12006 and Cisco 12406 Routers can be mounted in most two-post, four-post, or telco-type 19-inch equipment racks that comply with the Electronics Industries Association (EIA) standard for equipment racks (EIA-310-D). The rack must have at least two posts with mounting flanges on which to mount the router chassis. The distance between the center lines of the mounting holes on the two mounting posts must be 18.31 inches ± 0.06 inch (46.50 cm ± 0.15 cm).

Equipment Dimensions and Site Layout

Figure 2-2 shows the footprint and outer dimensions of the chassis for Cisco 12006 and Cisco 12406 Routers.

Figure 2-2 Chassis Outer Dimensions and Footprint (shown with enhanced model front door)

To help maintain trouble-free operation, consider the following precautions when planning your rack installation:

The site of the rack must include provisions for source AC or DC power, grounding, and network interface cables.

For the actual installation, allow sufficient space to work around the rack. You will need at least 3 feet adjacent to the rack to move, align, and insert the chassis. You will need at least 2 feet in front of the chassis to insert power modules.

Maintain at least 24 inches (61 cm) of clearance in front of and behind the chassis for maintenance after installation.

To mount the router between two posts or rails, the usable aperture (the width between the inner edges of the two mounting flanges) must be at least 17.5 inches (44.5 cm).

For the enhanced model of the Cisco 12006 and Cisco 12406 Routers, the mounting rails on a 4-post rack must be recessed no more than 1.5 inches for the front door to fully open and close and to provide adequate room for cable routing.

The height of the Cisco 12006 and Cisco 12406 Router is 18.5 inches (46.9 cm). Most 7-foot (2.15-m) equipment racks will accommodate four Cisco 12006 and Cisco 12406 Routers. Allow sufficient space in the rack for the router.

When fully populated with cards, Cisco 12006 and Cisco 12406 Routers can weigh as much as 205 pounds (93 kg). If you use a telco-style rack, the weight of the chassis is cantilevered off of the two rack posts. Ensure that the weight of the router does not make the frame unstable. Be sure that the frame is bolted to the floor and is secured to the building structure, either to wall or to overhead brackets.

Do not route cables in such a way as to disrupt movement in front of or behind the rack. To avoid noise interference in network interface cables, do not route them directly across or along power cables. Use appropriate strain-relief methods to protect cables and equipment connections.

Install and use the cable-management brackets included with the router to keep cables organized and out of the way of line cards, power modules, and blower modules. Consider the equipment and cabling that is already installed in the rack. Ensure that cables from other equipment do not impair access to the card cages, requiring you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

Ventilation

The blower module is mounted at the rear of the chassis; air flow to the air filters and blower module should not be blocked.


Note Warm air is exhausted from the rear of the chassis. Maintain 6 inches (15.24 cm) of clearance at both the inlet and exhaust openings on the chassis to allow sufficient air flow.


When placing multiple Cisco 12006 and Cisco 12406 Routers in the same rack, ensure that there is sufficient ventilation to accommodate the routers.

Equipment located near the bottom of the rack can generate excessive heat that is drawn upward and into the intake ports of equipment above, possibly leading to overheating.

The heated exhaust air from other equipment can enter the inlet air vents and cause overheating inside the router.

A ventilation system that is too powerful in an enclosed rack can also prevent cooling by creating negative air pressure around the chassis and redirecting the air away from the air intake vent. If necessary, operate the router with the rack door open or in an open rack.

The correct use of baffles inside an enclosed rack can assist in cooling the router.

Power Connection Guidelines

Cisco 12006 and Cisco 12406 Routers can be configured with either an AC-input power subsystem or a DC-input power subsystem. Site power requirements differ depending on which source power scheme is used. Follow these precautions and recommendations when planning power connections to the router:

Check the power at your site before installation and periodically after installation to ensure that you are receiving clean power.

If necessary, install a power conditioner.

Install proper grounding to avoid damage from lightning and power surges.


Note When operating your router on a single power module, the second power module bay must have a blank filler (MAS-GSR-PWRBLANK=) installed to ensure EMI compliance.


Power Connection Guidelines for AC-Powered Routers

When the Cisco 12006 or Cisco 12406 Router operates with an AC PDU, observe these guidelines:

A power factor corrector (PFC) allows the PDU to accept AC power source voltage from an AC power source operating between 100 and 240 VAC, 20A service in North America; and a range of from 185 to 264 VAC, 16A service, in an international environment.

Use only the 14-foot (4.3-meter) AC power cords shipped with the system.

Provide a dedicated power source with its own circuit breaker for each AC-input power supply installed in the router.

Install an uninterruptable power source where possible.

Power plug types used in North America, Australia, and Europe are described in Table 2-1 and shown in Figure 2-3.

Table 2-1 AC-Input Power Cord International Options 

Label
Description
Cisco Product Number

North America

20A, 250 VAC

CAB-GSR6-220V-US=

Australia, New Zealand

15A, 250 VAC

CAB-GSR6-AU=

Europe, Argentina, Brazil

16A, 250 VAC

CAB-GSR6-EU=

Italy

16A, 250 VAC

CAB-GSR6-IT=

United Kingdom

13A, 250 VAC (13A replaceable fuse)

CAB-GSR6-UK=


Figure 2-3 AC Power Plugs

Power Connection Guidelines for DC-Powered Routers

Be sure to observe the following guidelines for DC-powered Cisco 12006 and Cisco 12406 Routers:

Cisco 12006 and Cisco 12406 Routers with a DC PDU and DC-input power entry modules (PEMs) require an external DC circuit breaker for each DC power source:

Original series Cisco 12006 and Cisco 12406 router input power shall not draw more than 45A max. @ 40.5VDC form each DC power source.

Enhanced series Cisco 12006 and Cisco 12406 router input power shall not draw more than 60A max. @ 40.5VDC from each DC power source.

This circuit breaker should protect against short-circuit and overcurrent faults in accordance with United States National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, CSA C22.1 (Canada), and IEC 364 (other countries).

Provide a dedicated power source for each power entry module installed in the router.

Install an uninterruptable power source where possible.

Grounding Connections

Before you connect power or turn on your Cisco 12006 or Cisco 12406 Router, you must provide an adequate system ground for the router. The equipment grounding should be in accordance with local and national electrical codes.

For installations other than in a network equipment building system (NEBS) environment, you may chose to rely on the safety earth ground connection supplied via the International Electrotechnical Commission (IEC) 320 inlets for AC-powered units and the main terminal block ground connection for DC-powered units.

On Cisco 12006 and Cisco 12406 Routers configured for AC-input operation, the AC PDU is equipped with two three-wire electrical grounding-type connectors that accept three-wire, grounding-type AC power cords such as the power cords shipped with the router. This is a safety feature.

On Cisco 12006 and Cisco 12406 Routers configured for DC-input operation, the DC PDU is equipped with two DC power connector blocks, each with wire-connection terminals for connecting the negative lead (top terminal), the positive lead (middle terminal), and the ground lead (bottom terminal). This is a safety feature.

If the router is installed in a NEBS environment, we strongly recommend that you connect the central office ground system or interior equipment grounding system to the supplemental bonding and grounding point on the router chassis. This grounding point consists of three threaded inserts is located on the side of the chassis near the back of the chassis. (See Figure 2-4.) It is also referred to as the NEBS bonding and grounding receptacle, and is intended to satisfy the Telcordia NEBS requirements for supplemental bonding and grounding connections.

Figure 2-4 Supplemental Bonding and Grounding Port for NEBS Compliance

Use a cable lug with two holes at 0.63" (16 mm) centers to connect to the chassis with two 6.3 mm (M6) screws as shown in Figure 2-5. The lug can be ordered from Cisco (Part Number 32-0607-01).

Figure 2-5 Cable Lug

The dual-hole lug is crimped onto a grounding wire of a wire size and length determined by your router location and facility environment. The crimping tool shown in Figure 2-6 is a standard crimping tool obtainable from any normal hardware source.

Figure 2-6 Crimping the Lug

1

Place ground wire in the lug

2

Crimp the lug



Note The three threaded inserts that make up the grounding receptacle are set in a triangle so that you can choose any two of the three holes to attach the lug and grounding cable.


Site Wiring

This section presents site wiring guidelines for setting up the plant wiring and cabling at your site. When planning the location of the new system, consider the following:

Electromagnetic interference (EMI)

Distance limitations for signaling and unshielded conductors

Electromagnetic Interference

EMI can occur between the signals on the wires and external or ambient EMI fields when the wires are run for any significant distance. Bad wiring practice can result in radio interference emanating from the plant wiring.


Warning Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers and receivers in the Cisco 12006 and Cisco 12406 Router, can create an electrical hazard by conducting power surges through lines, and can damage the equipment.


To predict and remedy strong EMI, you may need to consult experts in radio- frequency interference (RFI).

If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the plant wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.

Distance Limitations

If wires exceed recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse (EMP) 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.

Most data centers cannot resolve the infrequent but potentially catastrophic problems just described without pulse meters and other special equipment. These problems can cost a great deal of time to identify and resolve, so take precautions by providing a properly grounded and shielded environment, with special attention to issues of electrical surge suppression.

Unpacking and Repacking the Router

The shipping package for Cisco 12000 series routers is engineered to reduce the potential of product damage associated with routine material handling experienced during shipment. To minimize potential damage to the product, transport these products in their Cisco-specified packaging. Failure to do so may result in damage to the router or degradation of its performance. Also, do not remove the Internet router from its shipping container until you are ready to install it. The router should always be transported or stored in an upright position. Keep the router in the shipping container until you have determined where you will install it.

Refer to the unpacking instructions (Cisco 12006 and 12406 Router Unpacking and Repacking Instructions document number 78-16104-xx) that came with the router to unpack it from the shipping pallet and verify the contents. This document also includes instructions to repack the router if you need to transport it.

If you do not receive everything you ordered, contact a customer service representative for assistance. See the section titled, Obtaining Technical Assistance, page -Boilerplate 2.

Site Preparation Checklist

Cisco 12006 and Cisco 12406 Routers come with a site log. Keep this in a common place near the router where anyone who performs tasks can have access to it. Site log entries might include the following:

Installation progress—Make entries in the site log to record installation. Note any difficulties encountered and their remedies during the installation process.

Upgrades and removal/replacement procedures—Use the site log as a record of system maintenance and expansion history, for example:

FRU installed, removed, or replaced

Configuration changes

Software upgrades

Corrective or preventive maintenance procedures performed

Intermittent problems

Your comments

Table 2-2 shows a sample site log. You can make copies of the sample or design your own site log.

Table 2-2 Sample Site Log 

Date
Description of Action Performed or Symptom Observed
Initials