H3C CR19000-16 Manuale utente

Contents

1 Preparing for installation··········································································1-1

Safety recommendations ································································································································1-1

General safety recommendations···········································································································1-1

Electricity safety······································································································································1-1

Moving safety··········································································································································1-1

ESD prevention·······································································································································1-2

Laser safety·············································································································································1-3

Examining the installation site·························································································································1-3

Weight support········································································································································1-3

Temperature and humidity······················································································································1-4

Cleanliness··············································································································································1-4

Harmful gas limit ·····································································································································1-5

EMI··························································································································································1-5

Grounding ···············································································································································1-5

Power supply···········································································································································1-6

Cooling····················································································································································1-6

Space······················································································································································1-7

Unpacking and inspecting the router ··············································································································1-9

Physical specifications····························································································································1-9

Unpacking the router·······························································································································1-9

Installation tools ····································································································································1-12

Pre-installation checklist································································································································1-13

1-1

1 Preparing for installation

Safety recommendations

To avoid bodily injury and damage to the router, read all safety recommendations including the

compliance and safety manual for the router carefully before installation. Note that the

recommendations do not cover every possible hazardous condition.

General safety recommendations

•

Keep the chassis clean and dust-free.

•

Do not place the router on a moist area, and avoid liquid flowing into the router.

•

Make sure the ground is dry and flat and anti-slip measures are in place.

•

Ensure good ventilation in the equipment room and keep the air inlet and outlet vents of the

router free of obstruction.

•

When servicing the device, do not wear loose clothing or any other things that could get caught

in the chassis and remove all metal jewelry such as watches, bracelets, and necklaces.

•

Use a screwdriver to fasten screws.

•

After completing the installation, move the empty packaging materials and installation tools

away from the router.

•

Keep the chassis and installation tools away from walk areas.

Electricity safety

•

Clear the work area of possible electricity hazards, such as ungrounded power extension

cables, missing safety grounds, and wet floors.

•

Locate the emergency power-off switch in the room before installation so you can quickly shut

power off when an electrical accident occurs.

•

Remove all external cables, including power cords, before moving the chassis.

•

Do not work alone when servicing the router with power present.

•

Never assume that power has been disconnected from a circuit. Always check.

Moving safety

WARNING

Hold the chassis handles firmly to move the router.

CAUTION:

Do not hold

air vents of the chassis, the handle of a fan tray or power supply, or

an ejector lever of a

module to move the router. Doing so might cause equipment damage.

The router is heavy and large. When you move the router, follow these guidelines:

•

Remove all external cables (including power cords), modules, and power supplies before

moving the chassis.

1-2

•

Moving the chassis requires a minimum of four people. As a best practice, use a mechanical lift

to move the chassis.

•

Lift and put down the chassis slowly and never move it suddenly.

•

Pay attention to the safety symbols on the package and handle the router accordingly. (The

symbols in Table1-1 are for illustration only. The symbols on your device packages might differ

from these ones.)

Table1-1 Packing symbols

Symbol Description

Do not stack the devices beyond the specified number (n)

Place the device with the arrows up.

The device is fragile. Handle it with care.

Keep the device from humidity, rains, and wet floor.

ESD prevention

CAUTION:

Make sure t

he resistance reading between human body and the ground is in the range of 1 to 10

megohms (Mohms).

Preventing electrostatic discharge

To prevent electrostatic discharge (ESD) damage, follow these guidelines:

•

Ground the router reliably. For how to ground your router, see "Grounding the router."

•

Always wear an ESD wrist strap when installing removable components. Make sure the wrist

strap is reliably grounded.

•

Hold a module by its edges. Do not touch any electronic components or PCB.

•

Put a module in an antistatic bag and keep it secure if you are not to install it in the chassis.

Attaching an ESD wrist strap

1. Wear the wrist strap on your wrist.

2. Lock the wrist strap tight around your wrist to keep good contact with the skin.

3. Attach the ESD wrist strap to an ESD jack on the chassis.

The router has one ESD jack on both the front and rear panels.

4. Make sure the rack is reliably grounded.

1-3

Figure1-1 Attaching an ESD wrist strap ( to the ESD jack on the rear panel)

Laser safety

WARNING

•

Disconnected optical fibers or transceiver modules might emit invisible laser light. Do not stare

into beams or view directly with optical instruments when the router is operating.

•

Before you remove the optical fiber connector from a fiber port, execute the shutdown

command in interface view to shut down the port.

CAUTION:

•

Insert dust caps into open optical fiber connectors to protect them from contamination and ESD

damage.

•

Insert dust plugs into open fiber ports and transceiver module ports to protect them from

contamination and ESD damage.

Examining the installation site

The router must be used indoors. To ensure correct operation and long service life of your router,

make sure the installation site meets the following requirements.

Weight support

Make sure the floor or ground at the installation site can support the combined weight of the router

and the rack. The total weight of the router includes the chassis and its components (for example,

modules and power supplies) and accessories. For the weights of the router and its components,

see "Weights and dimensions."

To mount the switch in a rack, select slide rails that can support the total weight of the router.

To assess the load-bearing requirements for the floor and slide rails, take potential system expansion

(for example, adding more modules) also in consideration.

1-4

Temperature and humidity

CAUTION:

If condensation

occurs on the chassis when you move it from a lower temperature to a higher

temperature, dry the chassis before powering it on to avoid short circuits.

If the temperature in the equipment room is too high, too low, or changes dramatically, the device

reliability is reduced and its service lifetime is shortened. For long-term, highly available operation of

the router, make sure temperature and humidity in the equipment room meets the requirements

described in Table1-2.

•

High temperature can accelerate the aging of insulation materials and significantly lower the

reliability and lifespan of the router.

•

Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical

property change of materials, and metal corrosion.

•

Lasting low relative humidity can cause washer contraction and ESD and bring problems

including loose screws and circuit failure.

Table1-2 Temperature and humidity requirements

Item Operating Storage

Temperature 0°C to 45°C (32°F to 113°F) –40°C to +70°C (–40°F to +158°F)

Humidity 5% RH to 95% RH, noncondensing 5% RH to 95% RH, noncondensing

Cleanliness

Mechanicallyactive substances buildup on the chassis might result in electrostatic adsorption, which

causes poor contact of metal components and contact points. In the worst case, electrostatic

adsorption can cause communication failure.

Table1-3 Mechanically active substance concentration limit in the equipment room

Substance Particle diameter Concentration limit

Dust particles ≥ 5 µm ≤ 3 × 104particles/m3

(No visible dust on desk in three days)

Dust (suspension) ≤75 µm ≤0.2 mg/m3

Dust

(sedimentation) 75 µm to 150 µm ≤1.5 mg/(m2h)

Sand 150 µm to 1000 µm ≤30 mg/m3

To maintain cleanliness in the equipment room, follow these guidelines:

•

Use dustproof materials for floors and walls and use coating that does not produce powders.

•

Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips.

Use screen doors and screen windows in the external side.

•

Keep the equipment room clean and clean the air filters of the rack regularly.

•

Wear ESD clothing and shoe covers before entering the equipment room.

1-5

Harmful gas limit

The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and

premature aging of components, as shown in Table1-4.

Table1-4 Harmful gas limits in the equipment room

Gas Maximum concentration (mg/m3)

SO20.2

H2S 0.006

NH30.05

Cl20.01

NO20.04

To control harmful gases, use the following guidelines:

•

Use environmentally friendly materials to decorate the equipment room. Avoid using materials

that contains harmful gases, such as sulfur or chlorine-containing insulation cottons and rubber

mats.

•

Keep the air inlet of the equipment room away from the pollution source and the sewer.

•

Place batteries separately, preferably in a separate room.

•

Employ a professional company to monitor and control harmful gases in the equipment room

regularly.

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the router and application

system, adversely affect the router in the following ways:

•

A conduction pattern of capacitance coupling.

•

Inductance coupling.

•

Electromagnetic wave radiation.

•

Common impedance (including the grounding system) coupling.

To prevent EMI, use the following guidelines:

•

Take effective measures to filter interference from the power grid.

•

Separate the working earthing system of the router from the grounding facility and lightning

protection facility of the other electrical devices as far as possible.

•

Keep the router far away from radio transmitting stations, radar stations, and high-frequency

devices.

•

Use electromagnetic shielding, for example, shielded interface cables, when necessary.

Grounding

Correctly grounding the router is crucial to lightning protection, anti-interference, and ESD

prevention. Use a good grounding system for the router. Make sure the resistance between the

chassis and the ground is less than 1 ohm.

For more information about grounding the router, see "Grounding the router."

1-6

Power supply

Power supply system

A good power supply system is essential for correct operation of the router. The router supports AC

and DC power inputs. Make sure the equipment room meets the following requirements for the

power supply systems.

•

The AC power supply system is stable and reliable and capable of providing power required by

the router. A diesel generator is available in the equipment room as a backup power source.

•

The DC power supply system is stable and reliable and its output voltage is stable and within

the acceptable range allowed by the device.

•

Enough batteries are available to ensure uninterrupted device operation in the event of a power

failure.

Power

For the power supply system to provide power as required by the router:

•

Determine the number of power supplies based on the total power consumption of the router.

Make sure the total maximum output power of the power supplies is greater than the total power

consumption of the router.

•

Verify that the power supply system at the installation site is stable and provides power that

meets the power supply specifications, including the rated input voltage and input current.

For the power supply specifications, see "Power supplies."

Cooling

The router uses super-short cut-through ventilation aisles to provide front-to-rear airflow for heat

dissipation, as shown in Figure1-2.

For adequate cooling of the device, make sure the following requirements are met:

•

Plan the installation location for the router based on its airflow direction.

•

The air inlet and outlet vents of the router are not blocked and adequate clearance is reserved

around the air vents.

•

The rack for the router has a good cooling system, with the perforation rate of rack doors

greater than 50%.

•

The installation site has a good cooling system.

•

The air conditioners do not blow air directly onto the router.

1-7

Figure1-2 Airflow through the chassis

Space

IMPORTANT:

•

The rack must have a front door (single door as a best practice) and a rear door.

•

For easy installation and maintenance, reserve a minimum clearance of 1200 mm (47.24 in)

between the rack and walls or other devices.

Table1-5 Router dimensions and rack requirements

Model Chassis dimensions Rack requirements

CR19000-16

•Height—931 mm (36.65 in)/21 RU

•Width—440 mm (17.32 in)

•Depth—979 mm (38.54 in)

Chassis—857 mm (33.74 in)

Cable management

bracket—92 mm (3.62 in)

Fan tray handle at the

rear—30 mm (1.18 in)

As a best practice, use a rack that meets

the following requirements:

•With dimensions (H × W × D) of 2200

× 600 × 1200 mm (86.61 × 23.62 ×

47.24 in)

•A minimum of 105 mm (4.13 in)

between the front rack posts and the

front door.

•A minimum of 880 mm (34.65 in)

between the front rack posts and the

1-8

Model Chassis dimensions Rack requirements

rear door.

Figure1-3 Chassis dimensions

Figure1-4 Rack dimensions

1-9

Unpacking and inspecting the router

Physical specifications

Table1-6 Physical specifications

Model Shipping weight Dimensions (H × W × D)

CR19000-16 119.3 kg (263.01 lb) 931 × 440 × 857 mm (36.65 × 17.32 × 33.74 in)

NOTE:

The shipping weight of

the router includes the chassis and packaging material. Y

ou can determine a

moving method for the chassis based on its shipping weight.

Unpacking the router

WARNING

To avoid bodily injury, wear protective gloves when unpacking the router.

CAUTION:

•

To avoid device damage, move the router to a location close to the installation site before

unpacking it.

•

Do not place the carton upside down.

•

Use a mechanical lift to move the shipping pallet and keep the router upright during the moving

process.

•

If you find the router water-soaked or its surface rusted, stop unpacking it and contact the

equipment supplier.

To unpack the router:

1. Place the carton flat on the floor with the pallet at the bottom.

2. Use scissors or diagonal pliers to cut the straps on the carton.

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