To avoid any equipment damage or bodily injury, read the following safety recommendations before installation. Note that the recommendations do not cover every possible hazardous condition.

General safety recommendations

· Do not place the router on an unstable case or desk. The router might be severely damaged in case of a fall.

· Keep the chassis clean and dust-free.

· Do not place the router on a moist area, and avoid liquid flowing into the router. Do not use wet cloth to wipe the router.

· Handle the routers according to the sizes of and packaging symbols on the packages.

Electrical 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.

· Make sure the operating voltage is in the required range.

· Before powering on the router, make sure the router is reliably grounded.

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 device is operating.

The router is a Class 1 laser device.

To avoid ESD damage, use dust caps on disconnected optical fiber connectors. Insert a dust plug into each fiber port and each transceiver module port not in use.

Moving safety

When you move the router, follow these guidelines:

· To avoid damage, move and unpack the router with care.

· After you move the router from a location below 0°C (32°F) to the equipment room, follow these guidelines to prevent condensation:

¡ Wait a minimum of 30 minutes before unpacking the router.

¡ Wait a minimum of 2 hours before powering on the router.

· Before you move the router, remove all cables.

· If the router is to be transported over a long distance, perform the following tasks before the transport:

¡ Remove all removable components, such as power supplies and interface cards, and place them separately in antistatic bags.

¡ Replace the filler panels provided with the router to prevent obstacle intrusions and damages to the router.

· To transport the router over a short distance, make sure the removable components are securely installed on the router and the screws are tightly fastened.

· When you move or lift the chassis, support the bottom of the chassis, rather than hold any removable component.

ESD prevention

CAUTION:

Make sure the resistance reading between human body and the ground is in the range of 1 to 10 megohms (Mohms).

No ESD wrist strap is provided with the router. Purchase one yourself.

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

To attach the 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. Secure the wrist strap lock and the alligator clip lock together.

4. Attach the alligator clip to the rack.

Examining the installation site

The router can only be used indoors. To ensure correct operation and a long lifespan for your router, the installation site must meet the following requirements.

Temperature and humidity

Maintain appropriate temperature and humidity in the equipment room at levels as described in Table2-1.

· 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 captive screws and circuit failure.

· High temperature can accelerate the aging of insulation materials and significantly lower the reliability and lifespan of the router.

Table2-1 Temperature and humidity requirements

Item	Specification
Temperature	· Operating: 0°C to 45°C (32°F to 113°F) · Storage: –40°C to +70°C (–40°F to +158°F)
Humidity	· Operating: 10% RH to 95% RH, noncondensing · Storage: 5% RH to 95% RH, noncondensing

Item

Specification

Temperature

· Operating: 0°C to 45°C (32°F to 113°F)

· Storage: –40°C to +70°C (–40°F to +158°F)

Humidity

· Operating: 10% RH to 95% RH, noncondensing

· Storage: 5% RH to 95% RH, noncondensing

Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of metal components and contact points, especially when indoor relative humidity is low. In the worst case, electrostatic adsorption can cause communication failure.

Table2-2 Router requirement for cleanliness

Substance	Particle diameter	Concentration limit
Dust particles	≥ 0.5 µm	≤ 1.8 × 107 particles/m3

Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive gases do not exceed the concentration limits as shown in Table2-3.

Table2-3 Corrosive gas concentration limits

Gas	Average concentration (mg/m3)	Maximum concentration (mg/m3)
SO2	0.3	1.0
H2S	0.1	0.5
Cl2	0.1	0.3
HCI	0.1	0.5
HF	0.01	0.03
NH3	1.0	3.0
O3	0.05	0.1
NOX	0.5	1.0

Cooling system

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

· A minimum clearance of 100 mm (3.94 in) is reserved around the inlet and outlet air vents.

· The installation site has a good cooling system.

· Plan the cooling system at the installation site based on the airflow direction of the router.

· Verify the airflow directions of the devices above and below the router. Make sure the exhausted hot air of the lower device will not enter the upper device.

Figure2-1 Airflow through the chassis

Rack requirements

· Make sure the rack is sturdy enough to support the total weight of the router and its accessories. For more information about the router weight, see H3C CR16000-M1A Router Hardware Information and Specifications.

· Make sure the dimensions of the rack meet the requirements.

· Make sure the rack is reliably grounded.

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:

· If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to filter interference from the power grid.

· 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.

Lightning protection

To protect the router from lightning better, do as follows:

· Make sure the installation site, power supply system, and the router are reliably grounded.

· Install a lightning arrester at the input end of the power supply to enhance the lightning protection capability of the power supply.

· To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning strikes, route interface cables only indoors. If part of the network cable of an Ethernet port must be routed outdoors, connect a lightning arrester to the cable before you plug the cable into the port.

Installation tools

No installation tools are provided with the router. Prepare installation tools yourself as required.

Figure2-2 Installation tools

Installation accessories

Figure2-3 Installation accessories

3 Installing the router

Installing the router in a standard 19-inch rack by using mounting brackets

Installation accessories

Table3-1 Installation accessories

Router model	Mounting brackets	Rack mounting rail kit
CR16000-M1A	1U high, one pair. See Figure3-1.	1U high, including one pair of long slide rails and one pair of chassis rails. See Figure3-2.

Figure3-1 Mounting brackets provided with the router

Figure3-2 1U long slide rails and chassis rail

(1) Chassis rail	(2) Long slide rail

Rack-mounting procedures at a glance

Figure3-3 Rack-mounting procedure

NOTE:

If a rack shelf is available, you can put the router on the rack shelf, slide the router to an appropriate location, and attach the router to the rack by using the mounting brackets.

Rack-mounting requirements

Figure3-4 Chassis dimensions (mounting brackets installed near the front panel)

(1) Power supply handle	(2) Mounting bracket installation position

Figure3-5 Chassis dimensions (mounting brackets installed near the rear panel)

(1) Power supply handle	(2) Mounting bracket installation position

Follow these guidelines when you mount the router in a 19-inch rack:

· The distance between the front and rear posts of the rack must meet the requirements described in Table3-2.

· To secure the router to the rack, you must install not only mounting brackets, but also chassis rails and slide rails.

· To install multiple devices, ensure a distance of 1 RU (44.45 mm, or 1.75 in) between neighbor devices.

· To avoid bodily injury or router damage, use a minimum of two persons to rack-mount the router.

Table3-2 Distance requirements between the front and rear rack posts

Router model	Installation method	Chassis dimensions	Distance between the front and rear rack posts	Rack requirements
CR16000-M1A	Mounting brackets, long slide rails, and chassis rails	· Height—44 mm (1.73 in)/1 RU · Width—440 mm (17.32 in) · Depth—460 mm (18.11 in) ¡ 25 mm (0.98 in) for the power supply or fan module handle ¡ 435 mm (17.13 in) for the chassis	562 to 828 mm (22.13 to 32.60 in)	· A minimum of 800 mm (31.50 in) in depth (recommended). · A minimum of 130 mm (5.12 in) from the front rack posts to the front door. · A minimum of 550 mm (21.65 in) from the front rack posts to the rear door.

Router model

Installation method

Chassis dimensions

Distance between the front and rear rack posts

Rack requirements

CR16000-M1A

Mounting brackets, long slide rails, and chassis rails

· Height—44 mm (1.73 in)/1 RU

· Width—440 mm (17.32 in)

· Depth—460 mm (18.11 in)

¡ 25 mm (0.98 in) for the power supply or fan module handle

¡ 435 mm (17.13 in) for the chassis

562 to 828 mm (22.13 to 32.60 in)

· A minimum of 800 mm (31.50 in) in depth (recommended).

· A minimum of 130 mm (5.12 in) from the front rack posts to the front door.

· A minimum of 550 mm (21.65 in) from the front rack posts to the rear door.

Mounting bracket installation positions

The router provides two mounting bracket installation positions: one near the rear panel and the other near the front panel.

Figure3-6 Mounting bracket installation positions

(1) Mounting bracket installation position near the rear panel
(2) Mounting bracket installation position near the front panel

Attaching the mounting brackets and chassis rails to the chassis

1. Place the wide flange of the mounting bracket against the chassis side panel. Align the mounting bracket installation holes with the screw holes in the chassis. Use M4 screws to attach the mounting bracket to the chassis. Select either of the following mounting bracket installation methods as required:

¡ To install the mounting brackets near the front panel, see Figure3-7.

¡ To install the mounting brackets near the rear panel, see Figure3-8.

2. Determine the installation position of the chassis rails based on the position of mounting brackets.

3. Place the chassis rail against the chassis side panel. Align the chassis rail installation holes with the screw holes.

¡ To install the chassis rails near the front panel, see Figure3-7.

¡ To install the chassis rails near the rear panel, see Figure3-8.

4. Use M4 screws to attach the chassis rail to the chassis.

5. Follow the same procedure to attach the other mounting bracket and chassis rail to the opposite side.

Figure3-7 Attaching the mounting brackets and chassis rails to the router (mounting brackets installed near the front panel)

Figure3-8 Attaching the mounting brackets and chassis rails to the router (mounting brackets installed near the rear panel)

Attaching the slide rails to the rack

1. Determine the installation position of the slide rails in the rack according to the planned router installation position.

2. Mark the cage nut installation positions on the rack posts. Then, install cage nuts at the marked positions.

Figure3-9 Installing cage nuts

3. Align the screw holes in one slide rail with the cage nuts in a rear rack post. Use screws to attach the slide rail to the post. See Figure3-10.

4. Repeat the preceding steps to attach the other slide rail to the other rear rack post.

Keep the two slide rails at the same height so the slide rails can attach into the chassis rails.

Figure3-10 Installing the 1U long slide rails

Mounting the router in the rack

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Verify that the mounting brackets and chassis rails have been securely attached to the router chassis. For more information, see "Attaching the mounting brackets and chassis rails to the chassis."

3. Verify that the slide rails have been correctly attached to the rear rack posts. For more information, see "Attaching the slide rails to the rack."

4. Attach cage nuts to the front rack posts and make sure they are at the same level as the slide rails.

5. One person performs the following operations:

a. Supporting the bottom of the router, aligns the chassis rails with the slide rails on the rack posts.

b. Pushes the router slowly to slide the chassis rails along the slide rails until the mounting brackets are flush with the rack posts.

IMPORTANT:

Make sure the front ends of the long slide rails reach out of the chassis rails.

6. The other person uses screws to attach the mounting brackets to the rack and verifies that the brackets are level and secure.

Figure3-11 Mounting the router in the rack (mounting brackets installed near the front panel)

Figure3-12 Mounting the router in the rack (mounting brackets installed near the rear panel)

Grounding the router

WARNING!

· Correctly connecting the grounding cable is crucial to lightning protection and EMI protection.

· Do not connect the router grounding cable to a fire main or lightning rod.

To ground the router by using a grounding strip:

1. Use a Phillips screwdriver to remove the grounding screw from the router chassis.

2. Attach the grounding screw to the ring terminal of the grounding cable.

3. Use a Phillips screwdriver to fasten the grounding screw into the grounding hole on the router.

4. Connect the other end (ring terminal) of the grounding cable to a grounding strip or a grounding point on the rack.

Figure3-13 Grounding the router

4 Installing removable components

CAUTION:

· Make sure each slot has a module or a filler panel installed while the router is operating.

· As a best practice, keep the filler panels and packaging boxes and bags for the removable components secure for future use.

· To avoid router damage, do not hold the power supply handle or ejector levers of the interface card to move the router.

Install an interface card

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Use a screwdriver to remove the fastening screws on the filler panel, and then remove the filler panel.

Figure4-1 Removing the filler panel

3. Open the ejector levers of the interface card, and then gently push the interface card into the slot along the guide rails until the ejector levers touch the chassis panel.

4. Push the front panel of the interface card forward. Then, close the ejector levers so that the interface card is flush with the chassis panel.

5. Use a Phillips screwdriver to fasten the screws on the interface card.

Figure4-2 Installing an interface card

Installing a fan module

CAUTION:

· Fan modules can be hot swapped.

· If a fan module fails, replace the fan module immediately and keep the failed fan module in position before replacement.

· The router came with the three fan module slots empty. To ensure good ventilation, you must install three fan modules of the same model before you power on the router.

· To prevent damage to the fan module or the backplane connectors, insert the fan module gently. If you encounter a hard resistance while inserting the fan module, pull out the fan module and insert it again.

To install a fan module:

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Unpack the fan module.

3. Orient the fan module with the "TOP" mark on the top. Grasping the handle of the fan module, insert the fan module along the guide rails into the slot until it has a firm contact with the backplane. See Figure4-3.

Figure4-3 Installing a fan module

Installing a power supply

WARNING!

Provide a separate circuit breaker for each power supply.

CAUTION:

· As a best practice, install two power supplies on the router to achieve 1+1 redundancy.

· Follow the forward inertia of the power supply when inserting it into the chassis, and make sure the power supply has firm contact with the connectors on the backplane.

· To prevent damage to the connectors inside the chassis, insert the power supply gently. If you encounter a hard resistance while inserting the power supply, pull out the power supply and insert it again.

To avoid router damage or bodily injury, install a power supply as shown in Figure4-4.

Figure4-4 Installation procedure

The installation procedure is similar for AC and DC power supplies. This following procedure installs an AC power supply.

To install a power supply:

1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably grounded.

2. Remove the filler panel, if any, from the target power supply slot.

Figure4-5 Removing the filler panel from a power supply slot

3. Unpack the power supply and verify that the power supply model is correct.

4. Correctly orient the power supply with the power supply slot. Grasping the handle of the power supply with one hand and supporting its bottom with the other, slide the power supply slowly along the guide rails into the slot until it clicks into place.

Figure4-6 Installing a power supply

5 Connecting cables

Connecting power cords

CAUTION:

· Before connecting a power cord, make sure the router is reliably grounded.

· Use a separate circuit breaker for each power input. Before connecting a power cord, turn off the circuit breaker for the power input.

· Each power supply is provided with a power cord. Use this power cord other than other power cords to connect the power supply to a power source.

Connecting an AC power cord

1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably grounded.

2. Insert the female connector of the power cord into the AC power receptacle on the power supply.

3. Use a cable tie to secure the power cord to the handle of the power supply.

4. Connect the other end of the power cord to an AC power source.

Figure5-1 Connecting an AC power cord

Connecting a DC power cord

1. Wear an ESD wrist strap and make sure the strap makes good skin contact and is reliably grounded.

2. Use a flat-head screwdriver to loosen the screws on the protective plate over the DC power receptacle and then remove the plate.

Figure5-2 Removing the protective plate over the DC power receptacle

3. Correctly orient the DC power cord connector and insert it into the power receptacle.

The DC power cord connector and DC power receptacle form an anti-misinsertion structure. If you orient the DC power cord connector upside down, you cannot insert it into the receptacle.

4. Use a flat-head screwdriver to fasten the screws on the power cord connector to secure the connector to the power receptacle.

5. Connect the other end of the DC power cord to the wiring terminals of a DC power source, with the negative wire (–) to the negative terminal (–) and the positive wire (+) to the positive terminal (+).

Figure5-3 Connecting a DC power cord

Connecting an HVDC power cord

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Slide the cable clamp onto the tie mount on the power supply.

3. Connect the female connector of the power cord to the power receptacle on the power supply.

4. Close the cable clamp and slide it forward until it is flush against the edge of the female connector.

5. Connect the other end of the power cord to an AC or DC power source.

Figure5-4 Connecting an HVDC power cord

Connecting copper Ethernet cables

Auto-MDI/MDIX is supported on the copper Ethernet ports on the front panel of the router and the 10/100/1000BASE-T ports on the interface cards. You can use straight-through or cross-over network cables to connect the copper Ethernet ports.

To connect a copper Ethernet cable:

1. Connect one end of the Ethernet cable to a copper Ethernet port on the router, and the other end of the cable to the peer Ethernet port.

2. Examine the LED for the Ethernet port to verify that the port is operating correctly. For more information about the LEDs, see H3C CR16000-M1A Router Hardware Information and Specifications.

NOTE:

After connecting the router to the network, you can use the ping or tracert command to verify network connectivity of the router. For more information about the commands, see the command references for the router.

Connecting optical fibers

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.

CAUTION:

· Never bend an optical fiber excessively. The bend radius of an optical fiber must be not less than 100 mm (3.94 in).

· Keep the fiber end clean.

· To connect an optical fiber to a fiber port, make sure the fiber connector matches the transceiver module.

· Before connecting an optical fiber, make sure the received optical power does not exceed the upper receive power threshold of the transceiver module. If the threshold is exceeded, the transceiver module might be damaged.

· To connect an optical fiber to a fiber port, first install a transceiver module in the fiber port and then connect the optical fiber to the transceiver module.

· Insert a dust plug into any open fiber port.

To connect an optical fiber:

1. Remove the dust plug from the fiber port.

2. Pivot the clasp of the transceiver module up to catch the clip on the top. Hold the two sides of the transceiver module and insert it slowly into the fiber port.

3. Remove the dust cap from the optical fiber connector, and use dust-free paper and absolute ethanol to clean the end face of the fiber connector.

4. Identify the Rx and Tx ports on the transceiver module. Use the optical fiber to connect the Rx port and the Tx port on the transceiver module to the Tx port and the Rx port on the peer device, respectively.

Figure5-5 Installing a transceiver module

6 Verifying the installation

After the installation is completed, verify the following items:

· There is enough space around the router for heat dissipation.

· The rack is stable.

· The grounding cable is correctly and securely connected.

· The power supplies are compatible with the router, and the power source is as required by the router.

· The power cords are correctly connected.

· If part of the network cable for a port is routed outdoors, verify that a network port lightning protector is used for the port.

· If a power line is routed from outdoors, verify that a surge protected power strip is used for the router.

7 Accessing the router for the first time

To access the router for the first time, use a console cable to connect a console terminal (for example, a PC) to the serial console port on the router.

Connecting the router to a configuration terminal

Console cables

As shown in Table7-1, two types of console cables can be used for connecting a configuration terminal to the console port on the router. No console cable is provided with the router. Purchase a console cable as required.

Table7-1 Console cables for connecting the console port

Console cable type	Console cable view	Router-side connector	Configuration terminal-side connector
DB9-to-RJ45 console cable		DB-9 female connector	RJ-45
USB-to-RJ45 console cable		USB	RJ-45

Connecting a DB9-to-RJ45 console cable

CAUTION:

The serial ports on PCs do not support hot swapping. If the router has been powered on, connect the serial console cable to the PC before connecting to the router, and when you disconnect the cable, first disconnect from the router.

To connect the router to a configuration terminal by using a serial console cable:

1. Connect the DB-9 female connector of the console cable to the serial port on the configuration terminal.

2. Connect the RJ-45 connector to the console port on the router.

Figure7-1 Connecting a DB9-to-RJ45 console cable

Connecting a USB-to-RJ45 console cable

IMPORTANT:

· To use a USB-to-RJ45 console cable to connect the router to a configuration terminal, first download and install the USB-to-RJ45 console driver on the configuration terminal, and then connect the USB-to-RJ45 console cable to the configuration terminal. To download the USB-to-RJ45 console driver, access the H3C official website or scan the QR code on the cable package.

· If you have connected a USB-to-RJ45 console cable to the configuration terminal before installing the driver, remove and reconnect the USB-to-RJ45 console cable to the configuration terminal after driver installation.

The following installs the driver on the Windows system. To install the driver on other operating systems, see the installation guide in the driver compression package named by using the corresponding operating system.

To connect the router to a configuration terminal by using a USB-to-RJ45 console cable:

1. Click the following link, or copy it to the address bar on your browser and download the USB-to-RJ45 console driver.

http://www.h3c.com/en/home/USB_to_RJ45_Console/

2. View the TXT file Read me in the Windows folder to check whether the Windows system of the configuration terminal supports the driver.

3. If the Windows system supports the driver, install PL23XX-M_LogoDriver_Setup_v200_20190815.exe.

4. Click Next on the welcome page of the driver installation wizard.

Figure7-2 Driver installation wizard

5. Click Finish after the drive installation is completed.

Figure7-3 Finishing the driver installation

6. Connect the standard USB connector of the cable to the USB port of the configuration terminal.

7. Connect the RJ-45 connector of the cable to the console port of the router.

Setting terminal parameters

To configure and manage the device through the console port, you must run a terminal emulator program, HyperTerminal or PuTTY, on your configuration terminal. You can use the emulator program to connect a network device, a Telnet site, or an SSH site. For more information about the terminal emulator programs, see the user guides for these programs

Configure the terminal parameters as follows:

· Bits per second—9600.

· Data bits—8.

· Stop bits—1.

· Parity—None.

· Flow control—None.

Starting the router

1. Verify that the following conditions are met before powering on the router:

¡ The power cord is correctly connected.

¡ The input power voltage is as required by the router.

¡ The console cable is correctly connected.

¡ The configuration terminal (a PC, for example) has started, and terminal parameters have been configured correctly.

2. Power on the router.

After powering on the router, you can determine whether the router is operating correctly by observing the RUN LED on the router. If the RUN LED is slowly flashing green at 0.5 Hz, the router is operating correctly.

During the startup process, you can access Boot ROM menus to perform tasks such as software upgrade and file management. The Boot ROM interface and menu options vary by software version. For more information about Boot ROM menu options, see the release notes for the specific software version.

3. Examine the LEDs on the router to verify that the router is operating correctly. If the RUN LED is flashing green at 1 Hz, the router is operating correctly. For more information about the LEDs, see H3C CR16000-M1A Router Hardware Information and Specifications.

4. Access the CLI to configure the router.

For more information about the configuration commands, see the configuration guides and command references for the router.

8 Replacing removable components

Replacing a power supply

WARNING!

To avoid router damage or bodily injury, strictly follow the removal procedure in Figure8-1 to remove a power supply.

Figure8-1 Power supply removal procedure

CAUTION:

For adequate heat dissipation and dust prevention, install a filler panel in a power supply slot if you are not to install a new power supply in the slot after removing the old one.

The removal procedure is similar for AC and DC power supplies. This following procedure removes an AC power supply.

To replace a power supply:

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Remove the power cord from the power supply.

3. Holding the power supply handle with one hand, press the latch towards the handle and pull the power supply part way out of the slot. Supporting the power supply bottom with the other hand, slowly pull the power supply out of the slot.

Figure8-2 Removing a power supply

4. If you are no to install a new power supply, install a filler panel in the slot.

Figure8-3 Installing a filler panel

Replacing a fan module

WARNING!

Ensure electricity safety and never touch the rotating fans when you hot swap a fan module.

CAUTION:

· If a fan module fails on an operating router, replace the fan module immediately and keep the failed fan module in position before replacement.

· To avoid disturbing the dynamic balance of a fan module and causing loud noises, do not touch the fan blades and rotation axis even if the fan module stops rotating.

· When a fan module fails during router operation, replace the fan module immediately. Keep the failed fan module in position until you start the replacement.

· Do not touch any bare cables or terminals on the fan module.

· Do not place the fan module in a wet area, and prevent liquid from flowing into the fan module.

· When an internal circuit or component of a fan module is faulty, contact H3C Support for repair. Do not remove the components yourself.

To replace a fan module:

1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

2. Press the fan module handles towards each other to disengage the fan module from the chassis. Then, pull out the fan module slowly out of the slot along the guide rails. See Figure8-4.

3. Place the removed fan module in an antistatic bag.

Figure8-4 Removing a fan module

Replacing an interface card

1. Prepare an antistatic mat to place the removed interface card.

2. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

3. Use a Phillips screwdriver to loosen the screws on the interface card.

4. Open the ejector levers to disengage the interface card from the chassis.

5. Slowly pull out the interface card along the guide rails.

Figure8-5 Removing an interface card

6. Put the removed interface card on an antistatic mat or in the original package.

7. Install a new interface card. For more information, see "Install an interface card."

8. If you are no to install a new interface card, install a filler panel in the slot.

Figure8-6 Installing an interface card filler panel

9 Hardware management and maintenance

The command lines and outputs vary by software version. For more information about the command lines and their outputs, see the command references for the specific software version.

Displaying software and hardware version information for the router

Use the display version command to display software version and hardware information for the router. This command also displays the router model and system running time.

<Sysname> display version

Displaying router operating information

During daily maintenance or when a fault occurs, you need to view the running information of each functional module to locate the issue.

You can use one of the following methods to collect operating statistics for diagnostics and troubleshooting:

· Use separate display commands, such as display clock, display version, display device, and display current-configuration to collect operating information feature by feature or module by module.

· Use the display diagnostic-information command to save or display operating information for multiple or all features and hardware modules.

¡ Save operating information for multiple or all features and hardware modules:

<Sysname> display diagnostic-information

Save or display diagnostic information (Y=save, N=display)? [Y/N]:y

Please input the file name(*.tar.gz)[flash:/diag_H3C_20240504-154112.tar.gz]：diag.tar.gz

Diagnostic information is outputting to flash:/diag.tar.gz.

Please wait...

Save successfully.

To save storage space, this command automatically compresses the information before saving the information to a file. To view the file content:

# Use the tar extract archive-file command to extract the file.

# Use the gunzip command to decompress the extracted file.

# Use the more command to view the content of the decompressed file.

¡ Save operating information for multiple or all features and hardware modules:

<Sysname> display diagnostic-information

Save or display diagnostic information (Y=save, N=display)? [Y/N]:n

===============================================

===============display clock===============

14:03:55 UTC Thu 01/05/2024

=================================================

===============display version===============

...

Displaying detailed router information

Use the display device verbose command to display detailed information about the router and the slots.

<Sysname> display device verbose

Slot No. Brd Type Brd Status Software Version

0 CR16000-M1A Master CR16000M1A-test

Slot 0 info:

Status : Master

Type : CR16000-M1A

Software Ver : CR16000M1A-test

PCB 1 Ver : VER.A

PCB 2 Ver : VER.A

FPGA Ver : 001

BootRom Ver : 118

CPLD 1 Ver : 002

Table9-1 Command output

Field	Description
Slot No	Slot number.
Board Type	Hardware type of the router.
Brd Status	Status of the router.
Software Version	Software version of the router.

Displaying electrical label information for the router

Use the display device manuinfo command to display electrical label information for the router.

An electronic label contains the permanent configuration information, including the name, hardware serial number, manufacturing date, MAC address, and vendor name of the router.

<Sysname> display device manuinfo

...

Table9-2 Command output

Field	Description
DEVICE_NAME	Name of the router.
DEVICE_SERIAL_NUMBER	Serial number of the router.
MAC_ADDRESS	MAC address of the router.
MANUFACTURING_DATE	Manufacturing date of the router.
VENDOR_NAME	Vendor name of the router.

Displaying CPU usage information

Use the display cpu-usage command to display CPU usage information for the router.

<Sysname> display cpu-usage

Slot 0 CPU 0 CPU usage:

5% in last 5 seconds

5% in last 1 minute

5% in last 5 minutes

Table9-3 Output description

Field	Description
5% in last 5 seconds	Average CPU usage in the most recent 5 seconds. (After the router boots, the router calculates and records the average CPU usage at intervals of 5 seconds.)
5% in last 1 minute	Average CPU usage in the most recent minute. (After the router boots, the router calculates and records the average CPU usage at intervals of 1 minute.)
5% in last 5 minutes	Average CPU usage in the most recent 5 minutes. (After the router boots, the router calculates and records the average CPU usage at intervals of 5 minutes.)

Displaying memory usage information

Use the display memory command to display memory usage information for the router.

<Sysname> display memory

Memory statistics are measured in KB:

Slot 0:

Total Used Free Shared Buffers Cached FreeRatio

Mem: 16223260 3949412 12273848 0 8112 449012 75.7%

-/+ Buffers/Cache: 3492288 12730972

Swap: 0 0 0

Table9-4 Command output

Field	Description
Memory statistics are measured in KB	Memory usage information.
Total	Total size of the physical memory space that can be allocated. The memory space is virtually divided into two parts. Part 1 is used for kernel codes, kernel management, and ISSU functions. Part 2 can be allocated and used for such tasks as running service modules and storing files. The size of part 2 equals the total size minus the size of part 1.
Used	Used physical memory.
Free	Free physical memory.
Shared	Physical memory shared by processes. If this field is not supported, two hyphens (--) are displayed.
Buffers	Physical memory used for buffers. If this field is not supported, two hyphens (--) are displayed.
Cached	Physical memory used for caches. If this field is not supported, two hyphens (--) are displayed.
FreeRatio	Free memory ratio.
-/+ Buffers/Cache	-/+ Buffers/Cache:used = Mem:Used – Mem:Buffers – Mem:Cached, which indicates the physical memory used by applications. -/+ Buffers/Cache:free = Mem:Free + Mem:Buffers + Mem:Cached, which indicates the physical memory available for applications.
Swap	Swap memory.

Displaying the fan module operating status

Use the display fan command to display the fan module operating status.

<Sysname> display fan

Fan Frame 0 State: Normal

Fan Frame 1 State: Normal

Fan Frame 2 State: Normal

Displaying the power supply operating status

Use the display power command to the power supply operating status.

<Sysname> display power

Power 0 State: Normal

Power 1 State: Normal

Displaying router temperature information

Use the display environment command to display router temperature information.

<Sysname> display environment

System temperature information (degree centigrade):

----------------------------------------------------------------------

Slot Sensor Temperature Lower Warning Alarm Shutdown

0 inflow 1 51 0 60 70 NA

0 outflow 1 50 0 80 90 NA

0 hotspot 1 48 0 92 95 NA

0 hotspot 2 56 0 100 117 122

0 hotspot 3 67 0 100 117 122

0 hotspot 4 66 0 90 100 105

0 hotspot 5 71 0 92 107 112

0 hotspot 6 76 0 88 102 107

Table9-5 Command output

Field	Description
System Temperature information (degree centigrade)	Temperature information (°C).
Slot	Slot number.
Sensor	Temperature sensor: · hotspot—Hotspot sensor. · inflow—Air inlet sensor. · outflow—Air outlet sensor.
Temperature	Current temperature.
Lower	Lower temperature limit. If the router does not support this field, this field displays NA.
Warning	Warning temperature threshold. If the router does not support this field, this field displays NA.
Alarm	Alarming temperature threshold. If the router does not support this field, this field displays NA.
Shutdown	Shutdown temperature threshold. When the sensor temperature reaches the limit, the system shuts down automatically. If the router does not support this field, this field displays NA.

Displaying transceiver module information

Use the display transceiver interface command to display the key parameters of transceiver modules, including the transceiver module type, connector type, central wavelength of the transmit laser, signal transmission distance, and vendor name.

To display transceiver module information:

Task	Command	Remarks
Display key parameters of transceiver modules.	display transceiver { controller \| interface } [ interface-type interface-number ]	Available for all transceiver modules.

Diagnosing transceiver modules

The router provides the alarm and digital diagnosis functions for transceiver modules. When a transceiver module fails or is not operating correctly, you can perform the following tasks:

· Check the alarms on the transceiver module to identify the fault source.

· Examine the key parameters monitored by the digital diagnosis function, including the temperature, voltage, laser bias current, TX power, and RX power.

To diagnose a transceiver module:

Task	Command	Remarks
Display transceiver alarms.	display transceiver alarm { controller \| interface } [ interface-type interface-number ]	Available for all transceiver modules.

For more information about transceiver module-rated commands, see the command references for the router.

Saving the running configuration

IMPORTANT:

You must save the running configuration to a .cfg configuration file.

You can use one of the following methods to save the running configuration:

· Fast mode—Use the save command without the safely keyword. In this mode, the router directly overwrites the target next-startup configuration file. If a reboot or power failure occurs during this process, the next-startup configuration file is lost. You must specify a new startup configuration file after the router reboots.

· Safe mode—Use the save command with the safely keyword. Safe mode is slower than fast mode, but more secure. In safe mode, the system saves the configuration in a temporary file and starts overwriting the target next-startup configuration file after the save operation is complete. If a reboot or power failure occurs during the save operation, the next-startup configuration file is still retained. Use the safe mode if the power source is not reliable or you are remotely configuring the router.

To save the running configuration:

Task	Command	Remarks
Save the running configuration to a configuration file, without specifying the file as a next-startup configuration file.	save file-url [ all \| slot slot-number ]	Use either approach. Available in user view.
Save the running configuration to a configuration file in the root directory of the storage medium, and specify the file as a next-startup configuration file.	save [ safely ]

Task

Command

Remarks

Save the running configuration to a configuration file, without specifying the file as a next-startup configuration file.

save file-url [ all | slot slot-number ]

Use either approach.

Available in user view.

Save the running configuration to a configuration file in the root directory of the storage medium, and specify the file as a next-startup configuration file.

save [ safely ]

Rebooting the router

CAUTION:

· If the main system software image file does not exist, do not use the reboot command to reboot the router. Specify the main system software image file first, and then reboot the router.

· The precision of the rebooting timer is 1 minute. 1 minute before the rebooting time, the router prompts "REBOOT IN ONE MINUTE" and reboots in one minute.

· If you are performing file operations when the router is to be rebooted, the system does not execute the reboot command for security.

To reboot the router, use one of the following methods:

· Reboot the router at the CLI.

¡ Reboot the router immediately by using the reboot command.

¡ Schedule a reboot to occur at a specific time or date or after a delay by using the schedule reboot command.

· Power off and then power on the router. This method cuts off the power of the router forcibly, which might cause data loss and hardware damage. It is the least-preferred method.

To reboot a module or the router immediately:

Task	Command	Remarks
Reboot the router immediately.	reboot [ slot slot-number ]	Available in user view.

To schedule a reboot:

Task	Command	Remarks
Schedule a reboot.	· Schedule a reboot to occur at a specific time or date: schedule reboot at hh:mm [ date ] · Schedule a reboot to occur after a delay: schedule reboot delay { hh:mm \| mm }	Use either approach. By default, no reboot date or time or reboot delay time is specified. Available in user view.

Task

Command

Remarks

Schedule a reboot.

· Schedule a reboot to occur at a specific time or date:
schedule reboot at hh:mm [ date ]

· Schedule a reboot to occur after a delay:
schedule reboot delay { hh:mm | mm }

Use either approach.

By default, no reboot date or time or reboot delay time is specified.

Available in user view.

10 Troubleshooting

Power supply failure

Symptom

The router fails to be powered on, and the status LED on the power supply is off.

Solution

To resolve the issue:

1. Verify that the power cord is connected correctly and reliably.

2. Verify that the power source is as required by the power supply.

3. Verify that the router operates at acceptable temperature ranges and the power supply has good ventilation.

4. If the issue persists, contact H3C Support.

To replace a power supply, see "Replacing a power supply."

Fan module failure

Symptom

The system reports a fan module failure:

%May 22 10:13:17:666 2024 H3C DEV/2/FAN_FAILED: Fan 1 failed.

The status LED on the fan module is flashing.

Solution

To resolve the issue:

1. Verify that the air inlet and outlet vents of the chassis are not blocked. Clear the obstructions if any.

2. Replace the fan module.

3. If the issue persists, contact H3C Support.

Configuration terminal display issue

No display

Symptom

The configuration terminal does not have display when the router is powered on.

Solution

To resolve the issue:

1. Verify that the power system is operating correctly.

2. Verify that the console cable is correctly connected.

3. Verify that the console cable does not have any issues and the terminal settings are correct.

4. If the issue persists, contact H3C Support.

Garbled display

Symptom

The display on the configuration terminal is garbled.

Solution

To resolve the issue:

1. Verify that the terminal parameters are configured as follows:

¡ Baud rate—9600.

¡ Data bits—8.

¡ Stop bits—1.

¡ Parity—None.

¡ Flow control—None.

2. If the issue persists, contact H3C Support.

2. Verify that the router supports the interface card.

3. Verify that the interface card is installed in the compatible slot.

4. Verify that a correct cable is used.

5. Verify that the cable is correctly connected.

6. If the issue persists, contact H3C Support.

System failure during operation

Symptom

A system failure occurs during router operation.

Solution

IMPORTANT:

The reset button is used for router reboot only, and does not restore the factory default.

Press the reset button (RESET) to reboot the router.

H3C CR16000-M1A Router Installation Guide-5W100

Safety recommendations

Rack requirements

Lightning protection

3 Installing the router

Installing the router in a standard 19-inch rack by using mounting brackets

Mounting bracket installation positions

Grounding the router

Install an interface card

Installing a fan module

5 Connecting cables

Connecting copper Ethernet cables

Connecting optical fibers

Connecting the router to a configuration terminal

Console cables

Starting the router

9 Hardware management and maintenance

Displaying software and hardware version information for the router

Displaying electrical label information for the router

Displaying CPU usage information

Displaying memory usage information

Rebooting the router

10 Troubleshooting

Symptom

Symptom

Solution

Configuration terminal display issue

Symptom

Solution

Symptom

Solution

Symptom

Solution

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