Cisco NCS 540 User manual

Prepare for Installation
Before you install the Cisco NCS 540, you must prepare your site for the installation.
Preparing your site involves these tasks:
•General Precautions, on page 1
•Site Planning Checklist, on page 2
•Environmental Requirements, on page 2
•Airflow Guidelines, on page 2
•Site Power Guidelines, on page 6
•Site Cabling Guidelines, on page 7
•Tools and Equipment, on page 8
•Prepare Your Location , on page 9
•Prepare Yourself , on page 9
•Prepare Rack for Router Installation, on page 10
•Cabinet Selection Guidelines, on page 10
•Unpack the Cisco NCS 540 Small Density Router, on page 11
General Precautions
Observe the following general precautions when using and working with your chassis:
• 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 and the power supply
cable and plug so that they are not stepped on or tripped over. Ensure that nothing is 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 to avoid damage to the system components, wait at least 30 seconds before
turning it on again.
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Site Planning Checklist
Use the following checklist to carry out all site planning tasks:
• The site meets environmental requirements.
• The site’s air conditioning system can compensate for the heat dissipation of the chassis.
• The floor space that the chassis occupies can support the weight of the system.
• Electrical service to the site complies with the safety with electricity requirements.
• The electrical circuit servicing the chassis complies with the power supply requirements.
• Console port wiring and cabling limitations have been considered in accordance to TIA/EIA-232F.
• The chassis Ethernet cabling distances are within prescribed limits.
• The equipment rack where the chassis is to be installed complies with prescribed requirements.
• The following factors have been carefully considered when selecting rack: location, safety, ease of
maintenance, and proper airflow.
Environmental Requirements
Environmental monitoring of the chassis protects the system and components from damage due to excessive
voltage and temperature conditions. To ensure normal operation and avoid unnecessary maintenance, plan
and prepare your site configuration before installation. After installation, ensure that the environmental
characteristics continue to be met.
For an outside plant installation (cell site cabinet, hut, and so on), you’re required to protect the chassis against
airborne contaminants, dust, moisture, insects, pests, corrosive gases, polluted air, or other reactive elements.
We recommend that you install the unit in a fully sealed enclosure or cabinet. Examples of such cabinets
include IP65 cabinets with heat exchanger complying with Telcordia GR487. Temperature must be maintained
within –40ºC to 65ºC. This is applicable to Cisco N540X-6Z18G-SYS-A/D, N540X-8Z16G-SYS-A/D, and
N540X-4Z14G2Q-A/D router variants.
Cisco N540-6Z18G-SYS-A/D router supports operational temperature of 0 to 50ºC.
Place the device inside a space that is protected from direct weather and environmental stresses by an enclosure.
Airflow Guidelines
Cool air is circulated through the router by fans that are located along the left side of the router. The internal
fans maintain acceptable operating temperatures for the internal components by drawing in cool air through
the vents, and circulating the air through the router.
To ensure adequate airflow, we recommend that you always maintain this minimum clearance distance as
mentioned in the following figure.
• Front clearance—5 inches (12.7 centimeters)
• Rear clearance—0.5 inches (1.27 centimeters)
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Site Planning Checklist

• Side clearance—3 inches (7.62 centimeters)
Figure 1: Airflow Top View Clearance
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Airflow Guidelines

Figure 2: Airflow Side View Clearance
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Airflow Guidelines

Figure 3: Airflow Side View from Right to Left
Figure 4: Airflow Side View of Cisco N540-6Z18G-SYS-A/D Router from Front to Left
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Airflow Guidelines

Table 1: Airflow Guidelines
Air ClearanceFlow
Direction
Router
At least 3 inches (76.2 millimeters) required on both inlet and exit
directions.
Right to LeftN540X-6Z18G-SYS-A
N540X-6Z18G-SYS-D
At least 3 inches (76.2 millimeters) required on both inlet and exit
directions.
Right to LeftN540X-8Z16G-SYS-A
N540X-8Z16G-SYS-D
At least 3 inches (76.2 millimeters) required on both inlet and exit
directions.
Right to LeftN540X-4Z14G2Q-A
N540X-4Z14G2Q-D
At least 3 inches (76.2 millimeters) required on both inlet and exit
directions.
Front to LeftN540-6Z18G-SYS-A
N540-6Z18G-SYS-D
Note the following points:
• When installing the router in a back-to-back position with another device, ensure that there is a minimum
of 3.9 inches (10 centimeters) airflow clearance between the two devices.
• If airflow through the equipment rack and the routers that occupy it is blocked or restricted, or if the
ambient air being drawn into the rack is too warm, an overtemperature condition may occur within the
rack and the routers that occupy it.
• The site must be as dust-free as possible. Dust tends to clog the router fans, reducing the flow of cooling
air through the equipment rack and the routers that occupy it, thereby increasing the risk of an
overtemperature condition.
• Enclosed racks must have adequate ventilation. Ensure that the rack is not congested because each router
generates heat. An enclosed rack must have louvered sides and a fan to provide cooling air. The equipment
generates heat near the bottom of the rack, which can be drawn upward into the intake ports of the
equipment above.
• When mounting a router in an open rack, ensure that the rack frame does not block the exhaust fans.
•When rack-installed equipment fails, especially equipment in an enclosed rack, try operating the equipment
by itself, if possible. Power off all the other equipment in the rack (and in adjacent racks) to give the
router maximum cooling air and clean power.
• Avoid installing the router in a location in which the router air intake vents may draw in the exhaust air
from adjacent equipment. Consider how the air flows through the router; the airflow direction is front to
back, with ambient air drawn in from the vents located on the sides of the router.
Site Power Guidelines
The chassis has specific power and electrical wiring requirements. Adhering to these requirements ensures
the reliable operation of the system. Follow these precautions and recommendations when planning your site
power for the chassis:
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Site Power Guidelines

• The redundant power option provides a second, identical power supply to ensure uninterrupted power
supply.
• Connect each power supply to a separate input power source. Otherwise, it results in a total power failure
to the system due to a fault in the external wiring or a tripped circuit breaker.
• To prevent loss of input power, ensure that the maximum load on each circuit 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. If necessary, install a power conditioner.
• Provide proper grounding to avoid personal injury and damage to the equipment due to power surges or
lightning striking power lines. The chassis ground must be attached to a central office or other interior
ground system.
Cisco N540-6Z18G-SYS-A/D router has single power supply unit.
Note
Statement 1045—Short-Circuit Protection
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.
Warning
The router requires external surge protection devices for installations where electrical surges higher than
4KV common mode and 2KV differential mode are expected. Failure to do so can result in permanent
damage to the router. For Cisco N540-6Z18G-SYS-A/D router, 2KV common mode and 1KV differential
modes are supported.
Caution
The chassis installation must comply with all the applicable codes, and is approved for use with only
copper conductors. The ground bond-fastening hardware must be compatible 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.
Note
Site Cabling Guidelines
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.
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Site Cabling Guidelines

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.
Tools and Equipment
You need the following tools and equipment to install and upgrade the device and its components:
• ESD-preventive cord and wrist strap
• Antistatic mat or antistatic foam
• Number 1 and Number 2 Phillips-head screwdrivers
• #12-24 pan-head screws to secure the device to the equipment rack
• Cables for connecting to network ports (based on the configuration)
• Ethernet hub, switch, or PC with a network interface card for connecting to the Ethernet ports
• Console terminal that is configured for 115200 baud, 8 data bits, no parity, no flow control, and 2 stop
bits
• Console cable for connecting to the console port
• Ratcheting torque screwdriver with a Phillips head that exerts up to 30-pound force per square inch
(0.02-kilograms force per square millimeter (kgf/mm2)) of pressure
• Crimping tool as specified by the ground lug manufacturer
• Wire-stripping tools for stripping both 6 and 14-AWG wires
• Tape measure and level
• Ratcheting torque screwdriver with a Phillips head that exerts up to 15 inch-pounds (1.69 newton meters)
of torque for attaching the ground wire to the device
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Tools and Equipment

Prepare Your Location
This section illustrates how the building that houses the chassis must be properly grounded to the earth ground.
Figure 5: Building with Rack Room Connected to Earth Ground
Prepare Yourself
This section illustrates how to prepare yourself before removing the chassis from the sealed antistatic bag.
The figures show how to wear the ESD strap around the wrist and how to connect the other end of the strap
to the ground. ESD wrist straps are the primary means of controlling static charge on personnel.
Note: These images are for only representation purposes. The chassis' actual appearance and size would vary.
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Prepare Your Location

Figure 6: Wearing the ESD Strap
Prepare Rack for Router Installation
Install the chassis into a two-post standard rack with standard horizontal mounting rails. Before you mount
the chassis into the rack, we recommend that you do the following:
Step 1 Place the rack where you plan to install the chassis. Ensure that the rack is grounded to earth.
Step 2 Secure the rack to the floor.
To bolt the rack to the floor, a floor bolt kit (also called an anchor embedment kit) is required. For information on bolting
the rack to the floor, consult a company that specializes in floor mounting kits (such as Hilti; see Hilti.com for details).
Make sure that floor mounting bolts are accessible, especially if an annual retorquing of bolts is required.
Cabinet Selection Guidelines
Equipment that is intended for installation in controlled environmental space has average yearly levels of
contamination. Ventilated cabinets or racks can be used if pollutant levels are maintained within allowable
limits.
Equipment intended for installation in outside plant (OSP) areas must have sealed cabinets with heat exchanger
that meet the NEMA -4 or IP66 protection and low average yearly levels of concentration of contaminants
inside the cabinet.
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Prepare Rack for Router Installation