The H3C S9820-8C switch is a high-density intelligent 100G/400G switch developed for data centers, providing powerful hardware forwarding capacity and abundant data center features.

This document is applicable to H3C S9820-8C switch (product code: LS-9820-8C).

Safety recommendations

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

· Before cleaning the switch, remove all power cords from the switch. Do not clean the switch with wet cloth or liquid.

· Do not place the switch near water or in a damp environment. Prevent water or moisture from entering the switch chassis.

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

· Ensure good ventilation in the equipment room and keep the air inlet and outlet vents of the switch free of obstruction.

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

· To avoid electrical shocks, do not open the chassis while the switch is operating. As a best practice, do not open the chassis even if the switch is powered off.

· To avoid ESD damage, always wear an ESD wrist strap when replacing power modules, fan trays, and interface modules.

Examining the installation site

The switch must be used indoors. Make sure the installation site meets the following requirements:

· Adequate clearance is reserved at the air inlet and outlet vents for ventilation.

· The rack has a good ventilation system.

· Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into the switch from the cold aisle and exhausts to the hot aisle.

· Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the neighboring devices from entering the top device.

· The rack is sturdy enough to support the switch and its accessories.

· The rack is reliably grounded.

To ensure correct operation and long service life of your switch, install it in an environment that meets the requirements described in the following subsections.

Temperature/humidity

Maintain the temperature and humidity in the equipment room in the acceptable ranges.

· 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 cause problems including loose mounting screws and circuit failure.

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

For information about the temperature and humidity requirements, see H3C S9820-8C Ethernet Switch Hardware Information and Specifications.

Cleanliness

Dust buildup on the chassis might cause electrostatic adsorption and dust corrosion, resulting in poor contact of metal connectors and contact points. This might shorten the device's lifetime and even cause device failure in the worst case. Table1-1 describes the switch requirement for cleanliness.

Table1-1 Switch requirement for cleanliness

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

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

· Keep the equipment room away from pollution sources. Do not smoke, eat, or drink in the equipment room.

· Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips. Use screen doors and window screens for doors and windows open to the outside and make sure the external windows are air tight.

· Use dustproof materials for floors, walls, and ceilings and use wallpaper or matt paint that does not produce powders.

· Clean the equipment room regularly and clean the air filters of the rack each month.

· Wear ESD clothing and shoe covers before entering the equipment room, keep the ESD clothing and shoe covers clean, and change them frequently.

Corrosive gas limit

Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive gases do not exceed the concentration limits as shown in Table1-2.

Table1-2 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

CAUTION:

As a best practice, control the corrosive gas concentrations in the equipment room at their average values. Make sure the corrosive gas concentrations do not exceed 30 minutes per day at their maximum values.

To control corrosive gases, use the following guidelines:

· As a best practice, do not build the equipment room in a place with a high concentration of corrosive gases.

· Make sure the equipment room is not connected to sewer, vertical shaft, or septic tank pipelines and keep it far away from these pipelines. The air inlet of the equipment room must be away from such pollution sources.

· Use environmentally friendly materials to decorate the equipment room. Avoid using organic materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons, rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.

· Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment room with the device. Make sure the exhausted air of the engines will not flow into the equipment room or towards the air inlet of the air conditioners.

· Place batteries separately. Do not place them in the same room with the device.

· Employ a professional company to monitor and control corrosive gases in the equipment room regularly.

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the switch and application system, adversely affect the switch 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 switch far away from radio transmitting stations, radar stations, and high-frequency devices.

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

· To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning strikes, route interface cables only indoors.

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 switch is operating.

The switch is a Class 1M laser device.

Installation tools

No installation tools are provided with the switch. Prepare the following tools yourself:

· Phillips screwdriver.

· ESD wrist strap.

· Marker.

Installation accessories

Before installation, make sure you have all the required installation accessories. If an accessory is damaged or lost, use its BOM code to purchase a new one. You can find the BOM codes for the accessories in Table1-3.

Table1-3 Installation accessories

BOM code	Description	Quantity
0223A1B0	Mounting brackets	1 kit (provided). The mounting bracket with a round hole in the narrow flange supports hanging a fixed asset tag.
0231A2VL	Bottom support rails	1 kit. You must purchase bottom support rails for rack-mounting the switch.
0231ACWW	Cable management frame	1 or 2 (optional)
N/A	M6 screw and cage nut	As required (user supplied)
0404A1RB (single-hole grounding lug) or 0404A162 (two-hole grounding lug)	Grounding cable with a single-hole grounding lug Grounding cable with a two-hole grounding lug	1 (provided)
26010553	Grounding screw	2 (provided)
2113A2TU	Interface module filler panel	8 (provided)
2114A0CK	Power module filler panel	2 (provided)
N/A	Releasable cable tie	As required (user supplied)
04042967	Console cable	Optional
0404A1EE	USB-to-RJ45 console cable	Optional
N/A	Mini USB console cable	User supplied
14990101	SFP port dust plug	1 (provided)

2 Installing the switch

CAUTION:

Keep the tamper-proof seal on a mounting screw on the chassis cover intact, and if you want to open the chassis, contact H3C for permission. Otherwise, H3C shall not be liable for any consequence caused thereby.

CAUTION:

When installing the switch, always wear an ESD wrist strap and make sure the wrist strap makes good skin contact and is reliably grounded.

Figure2-1 Installation flow

Installing the switch in a 19-inch rack

Rack-mounting procedure at a glance

Figure2-2 Rack-mounting procedure

NOTE:

If a rack shelf is available, you can put the switch on the rack shelf and slide the switch to a position so that the mounting brackets make close contact with the front rack posts. Then use screws to secure the mounting brackets to the rack.

Rack requirements

To mount the switch in a 19-inch rack, the rack must meet the requirements in Table2-2.

Figure2-3 S9820-8C chassis dimensions

(1) Fan tray handle	(2) Interface module ejector lever

Table2-2 Rack requirements

Switch model	Chassis dimensions	Distance between the front and rear rack posts	Rack requirements
S9820-8C	· Height—130.5 mm (5.14 in)/3 RU · Width—440 mm (17.32 in) · Depth—837 mm (32.95 in) ¡ 760 mm (29.92 in) for the chassis ¡ 27 mm (1.06 in) for the interface module ejector levers ¡ 50 mm (1.97 in) for the fan tray handles	630 to 900 mm (24.80 to 35.43 in)	· A minimum of 1200 mm (47.24 in) in depth (recommended) · A minimum of 150 mm (5.91 in) between the front rack post and the front door. · A minimum of 840 mm (33.07 in) between the front rack post and the rear door.

Switch model

Chassis dimensions

Distance between the front and rear rack posts

Rack requirements

S9820-8C

· Height—130.5 mm (5.14 in)/3 RU

· Width—440 mm (17.32 in)

· Depth—837 mm (32.95 in)

¡ 760 mm (29.92 in) for the chassis

¡ 27 mm (1.06 in) for the interface module ejector levers

¡ 50 mm (1.97 in) for the fan tray handles

630 to 900 mm (24.80 to 35.43 in)

· A minimum of 1200 mm (47.24 in) in depth (recommended)

· A minimum of 150 mm (5.91 in) between the front rack post and the front door.

· A minimum of 840 mm (33.07 in) between the front rack post and the rear door.

IMPORTANT:

To reserve enough cabling space and close the rack door easily, make sure the rack meets the depth requirements.

Installation accessories

Table2-3 Installation accessories for rack-mounting the switch

Item	Quantity and requirements
Mounting bracket (provided)	1 kit. See Figure2-4. The mounting bracket with a round hole in the narrow flange supports hanging a fixed asset tag.
Cable management frame (optional)	You can purchase one or two cable management frames for the switch as required. See Figure2-5.
Bottom support rails (not provided)	1 kit. You must purchase bottom support rails for rack-mounting the switch. See Figure2-6.

Figure2-4 Mounting brackets

Figure2-5 Cable management frame

Figure2-6 Bottom support rails

(1) Installation hole	(2) Guide rail
(3) Front end mark (FRONT)

Attaching the m ounting brackets to the chassis

As shown in Figure2-7, the switch provides one installation position for mounting brackets.

Figure2-7 Installation position for mounting brackets

(1) Installation position for mounting brackets

To attach the mounting brackets to the chassis:

1. Place the wide side of a mounting bracket against its installation position on the chassis. Align the mounting holes in the mounting bracket with the screw holes in the chassis.

2. Use the provided M4 screws to attach the mounting bracket to the chassis.

As a best practice, use a torque of 12 kgf-cm (1.18 Nm) to fasten the M4 screws.

3. Attach the other mounting bracket to the other side of the chassis in the same way.

Figure2-8 Attaching the mounting brackets to the switch

Attaching cage nuts and bottom support rails to the rack

1. Identify and mark the cage nut installation holes on the rack for securing mounting brackets and bottom support rails.

2. Install cage nuts (user-supplied) in the marked mounting holes in the rack posts.

3. Align the screw holes in one bottom support rail with the installation holes in the rack posts at one side. Use the user-supplied M6 screws to attach the bottom support rail to the posts, as shown in Figure2-9.

As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the M6 screws.

4. Perform the same procedure to attach the other bottom support rail to the rack posts at the other side.

Make sure the two bottom support rails are at the same height so that the bottom support rails can slide into the chassis rails steadily.

Figure2-9 Installing bottom support rails

Mounting the switch in the rack

This task requires two people.

To mount the switch in the rack:

1. Verify that the mounting brackets have been securely attached to the switch chassis.

2. Verify that the bottom support rails and cage nuts have been correctly attached to the rack posts.

3. One person performs the following operations:

a. Supporting the bottom of the switch, aligns the chassis with the bottom support rails.

b. Pushes the switch slowly into the rack so that the mounting brackets are flush against the rack posts.

4. Another person uses screws of appropriate size to attach the mounting brackets to the rack.

You need to prepare these screws yourself. Make sure the screws are anti-corrosive.

Figure2-10 Mounting the switch in the rack

Attaching the cable management frame to the rack

You can purchase one cable management frame for the switch and install it on the rack posts immediately above or below the switch as required. For more organized cabling, you can purchase two cable management frames so that the switch has a cable management frame installed both above and below it.

To attach a cable management frame to the switch:

1. Verify that the cage nuts for securing the cable management frame have been correctly attached to the rack posts. For more information, see "Attaching cage nuts and bottom support rails to the rack."

2. Determine to install the cable management frame above or below the switch based on the cabling requirements.

3. Use screws of appropriate size to attach the cable management frame securely to the front rack posts.

Figure2-11 Attaching a cable management frame to the front rack posts

Connecting the grounding cable to the chassis

Use M5 grounding screws to attach a grounding cable that has a two-hole grounding lug or single-hole grounding lug to the grounding point on the switch. If the grounding cable length or terminal type cannot meet your requirement, make an applicable grounding cable or contact H3C Support.

As shown in Figure2-12, the switch provides one grounding point at the rear panel.

Figure2-12 Grounding point

(1) Grounding point

To connect the grounding cable to the chassis:

1. Unpack the grounding cable and grounding screws.

2. Use grounding screws to attach the two-hole grounding lug or single-hole grounding lug of the grounding cable to the grounding point, and then fasten the screws. As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the grounding screws.

Figure2-13 Attaching the grounding cable that has a single-hole grounding lug to the grounding point on the switch

Figure2-14 Attaching the grounding cable that has a two-hole grounding lug to the grounding point on the switch

Grounding the switch

WARNING!

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

· Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a fire main or lightning rod.

CAUTION:

To guarantee the grounding effect, connect the switch to a grounding strip in the equipment room by using the grounding cable provided with the switch.

The power input end of the switch has a noise filter, whose central ground is directly connected to the chassis to form the chassis ground (commonly known as PGND). You must securely connect this chassis ground to the earth to minimize the potential for system damage, maximize the safety at the site, and minimize EMI susceptibility of the system.

You can ground a switch by using a grounding strip at the installation site.

NOTE:

The grounding terminals in this section are for illustration only.

To ground the switch by using a grounding strip:

1. Attach the two-hole grounding lug of the grounding cable to the grounding point on the chassis. For more information, see "Connecting the grounding cable to the chassis."

2. Remove the hex nut of a grounding post on the grounding strip.

3. Attach the ring terminal at the other end of the grounding cable to the grounding post on the grounding strip, and secure the ring terminal to the grounding post with the hex nut.

Figure2-15 Connecting the grounding cable to a grounding strip

(1) Hex nut	(2) Ring terminal
(3) Grounding post	(4) Grounding strip

Installing/removing fan trays

CAUTION:

The switch has five fan tray slots. For adequate heat dissipation, follow these guidelines:

· The switch is provided with the fan tray slots empty. Before powering on the switch, make sure it has five fan trays of the same model installed.

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

· If multiple fan trays fail on the operating switch, do not remove the fan trays at the same time. Replace the fan trays one after another and finish replacing a fan tray within 3 minutes.

The switch uses a front-rear air aisle and supports the FAN-80B-1-B fan tray. The FAN-80B-1-B fan tray provides port side-intake and power module side-exhaust airflow and its handle is red.

Before installing a fan tray, make sure the airflow direction provided by the fan tray meets the ventilation requirements.

Installing a fan tray

CAUTION:

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

IMPORTANT:

Before powering on the switch, make sure the fan tray airflow direction and the preferred airflow direction of the switch are the same. If they are not the same, the system generates traps and logs. You can use the fan prefer-direction command to configure the preferred airflow direction for the switch. By default, the preferred airflow direction of the switch is from the port side to the power module side. For more information about the fan prefer-direction command, see device management in H3C S9820-8C Switch Fundamentals Command Reference.

Select appropriate fan trays as needed. For the optional fan trays and their specifications, see H3C S9820-8C Ethernet Switch Hardware Information and Specifications.

The switch supports shipping with fan trays and power modules installed. If your switch came with fan trays preinstalled, skip this section.

To install a fan tray:

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

2. Unpack the fan tray and verify that the fan tray model is correct.

3. Orient the fan tray with the adapter facing upwards. Grasp the handle of the fan tray with one hand and support the fan tray bottom with the other. Slide the fan tray along the guide rails into the slot until the fan tray is fully seated in the slot and has a firm contact with the backplane. See Figure2-16.

The fan tray and the fan tray slot each have an alignment hole. Orient the fan tray as indicated by alignment holes. Ensure that the alignment hole in the fan tray is aligned with that in the switch after the fan tray installation.

Figure2-16 Installing a FAN-80B-1-B fan tray

Removing a fan tray

WARNING!

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

· To prevent a fan from causing loud noise, do not touch the fan blades and rotation axis, even if the fan is not rotating.

To remove a fan tray:

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

2. Press the red part of the handle with one hand and pull the fan tray part way out of the slot. Supporting the fan tray bottom with the other, pull the fan tray completely out of the slot along the guide rails.

3. Put the removed fan tray in an antistatic bag.

Figure2-17 Removing a FAN-80B-1-B fan tray

Installing and removing power modules

WARNING!

· To avoid bodily injury or device damage, strictly follow the procedures in Figure2-18 and Figure2-19 to install and remove a power module.

· Provide a separate circuit breaker for each power module.

CAUTION:

Make sure each slot has a filler panel or module installed when the switch is operating.

The switch has four power module slots at the rear panel. It is shipped with power module slots PWR1 and PWR2 empty and power modules slots PWR3 and PWR4 each installed with a filler panel.

The switch supports 2+1 and 2+2 power module redundancy. You can install two to four power modules for the switch as needed. For information about the power modules available for the switch, see H3C S9820-8C Ethernet Switch Hardware Information and Specifications.

Figure2-18 Power module installation procedure

Figure2-19 Power module removal procedure

Installing a power module

The switch supports shipping with fan trays and power modules installed. If your switch came with power modules preinstalled, skip this section.

To install a power module:

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

2. Remove the filler panel, if any, from the target power module slot, as shown in Figure2-20.

Figure2-20 Removing a filler panel

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

4. Correctly orient the power module with the lettering on it upward. Grasping the power module handle with one hand and supporting the module bottom with the other, slide the power module slowly into the slot along the guide rails. Make sure the power module connectors have firm contact with the backplane.

If you insert the power module into the slot upside down, the power module output connectors might be damaged during the inserting or removing process.

If you encounter a hard resistance while inserting the power module, pull out the power module, orient it correctly, and then insert it again. Do not insert the power module forcibly.

Figure2-21 Installing a power module (PSR1600B-12A-B)

Removing a power module

CAUTION:

The switch supports 2+1 or 2+2 power module redundancy. When the switch is configured with four power modules, removing one or two power modules does not affect the operation of the switch. When the switch has only two power modules installed, removing power modules powers off the switch or causes power insufficiency.

To remove a power module:

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 module.

3. As shown in Figure2-22, use one hand to hold the power module handle, press the latch towards the handle, and then pull the power module part way out of the slot. Supporting the power module with the other hand, pull it completely out of the slot.

4. Put the removed power module in an antistatic bag for future use.

5. If you are not to install a new power module, install a filler panel in the slot to ensure good ventilation in the switch.

Figure2-22 Removing the power module

(1) Press the latch towards the handle	(2) Pull the power module out

Connecting the power cord for a power module

WARNING!

· Make sure each power cord has a separate circuit breaker.

· Before you connect a power cord, make sure the circuit breaker for the power cord is switched off.

The switch uses PSR1600B-12A-B power modules. To connect the AC power cord for a PSR1600B-12A-B power module:

1. Insert the female connector of the AC power cord supplied with the power module into the power receptacle on the power module.

2. Use a releasable cable tie to secure the power cord to the handle of the power module, as shown in Figure2-23.

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

Figure2-23 Connecting the AC power cord for a PSR1600B-12A-B power module

(1) Releasable cable tie
(2) Lock the cable tie to secure the power cord to the handle of the power module

Installing and removing interface modules

CAUTION:

When you install or remove an interface module, follow these guidelines:

· Never touch the components on the interface module.

· Do not use excessive force.

· The interface modules are hot swappable. Do not install or remove an interface module during startup of the switch.

· Attach dust plugs to the empty ports on the interface modules to prevent dust from entering the ports.

The switch provides eight interface module slots. For the interface modules available for the switch and the interface module specifications, see H3C S9820-8C Ethernet Switch Hardware Information and Specifications. The following installation and removal procedures use an LSWM116H interface module as an example.

Installing an interface module

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

2. Remove the filler panel, if any, from the target interface module slot. As shown in Figure2-24, put your thumb and forefinger into the two holes of the filler panel. Then press down the metal tab in the top hole and pull out the filler panel along the guide rails.

Figure2-24 Removing the filler panel from the interface module slot

Keep the removed filler panel secure for future use.

3. Unpack the interface module.

4. Press down and hold the latch of the ejector lever to pull the ejector lever out.

Figure2-25 LSWM116H interface module

(1) Latch	(2) Ejector lever

5. Insert the module slowly into the slot along the guide rails, as shown by callout 1 in Figure2-26.

6. Press down and hold the latch of the ejector lever to rotate the ejector lever to its original place, and then release the grip on the latch to lock the ejector lever in place, as shown by callout 2 in Figure2-26.

Figure2-26 Installing an LSWM116H interface module

Removing an interface module

CAUTION:

If you are not to install a new interface module after removing the original one, install a filler panel in the slot to prevent dust and ensure good ventilation.

To remove an interface module:

1. Prepare an anti-static bag.

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

3. Press down and hold the latch of the ejector lever to pull the ejector lever out.

4. Open the ejector lever to disengage the interface module from the device connector.

5. Use both hands to slowly take the module out.

6. Place the removed interface module in the anti-static bag.

Figure2-27 Removing an LSWM116H interface module

Verifying the installation

After you complete the installation, verify the following items:

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

· The rack is sturdy and stable.

· The grounding cable is securely connected.

· The power modules are as required by the switch.

· The power cords are correctly connected.

· The network cable is routed indoors. The switch does not support outdoor cable routing.

3 Accessing the switch for the first time

Connecting the switch to a configuration terminal

The following options are available for connecting the switch to a configuration terminal:

· Use a serial console cable to connect the serial console port on the switch to a configuration terminal.

· Use a mini USB console cable to connect the mini USB console port on the switch to a configuration terminal.

Only the mini USB console port is active if you connect both the serial console port and mini USB console port.

The example uses a serial console cable to connect a console terminal (PC) to the serial console port on the switch.

Figure3-1 Connecting the serial console port to a terminal

As shown in Table3-1, three types of console cables can be used for connecting the switch to a configuration terminal. The switch is not provided with a serial console cable or a mini USB console cable.

Table3-1 Connection methods and console cables

Connection method	Console cable type	Configuration terminal-side connector	Switch-side connector
Using the serial console port for connection	DB9-to-RJ45 console cable	DB-9 female connector	RJ-45 connector
Using the serial console port for connection	USB-to-RJ45 console cable	USB connector	RJ-45 connector
Using the mini USB console port for connection	Mini USB console cable	USB connector	USB mini-Type B connector

The signal pinout for the RJ-45 connector of a serial console cable varies by vendor. To avoid abnormal configuration terminal display, use a serial console cable provided by H3C. For more information, see Table3-2. To prepare a serial console cable yourself, make sure the signal pinout for the RJ-45 connector is the same as that shown in Table3-3.

Table3-2 Console cable views

Console cable type	Console cable view	Product code for the recommended H3C console cable
DB9-to-RJ45 console cable		04042967
USB-to-RJ45 console cable		0404A1EE
Mini USB console cable		User supplied,

Connecting the console cable

Connecting a DB9-to-RJ45 console cable

CAUTION:

· Identify the mark on the serial console port and make sure you are connecting to the correct port.

· The serial ports on PCs do not support hot swapping. To connect a PC to an operating switch, first connect the PC end. To disconnect a PC from an operating switch, first disconnect the switch end.

A serial console cable is an 8-core cable, with a crimped RJ-45 connector at one end for connecting to the serial console port of the switch, and a DB-9 female connector at the other end for connecting to the serial port on the console terminal.

Figure3-2 Serial console cable

Table3-3 Console port signaling and pinout

RJ-45	Signal	DB-9	Signal
1	RTS	8	CTS
2	DTR	6	DSR
3	TXD	2	RXD
4	SG	5	SG
5	SG	5	SG
6	RXD	3	TXD
7	DSR	4	DTR
8	CTS	7	RTS

To connect a configuration terminal (for example, a PC) to the switch through a DB9-to-RJ45 console cable:

1. Plug the DB-9 female connector of the DB9-to-RJ45 console cable to the serial port on the PC.

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

Connecting a USB-to-RJ45 console cable

IMPORTANT:

· To use a USB-to-RJ45 console cable to connect the switch 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.

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

For information about the signal pinout for the RJ-45 connector of a USB-to-RJ45 console cable, see Table3-3.

The following procedure describes how to install 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 the corresponding operating system.

To connect the switch to the configuration terminal through 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.

Figure3-3 Driver installation wizard

5. Click Finish after the drive installation is completed.

Figure3-4 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 switch.

Connecting a mini USB console cable

A mini USB console cable has a USB mini-Type B connector at one end to connect to the mini USB console port of the switch, and a standard USB Type A connector at the other end to connect to the USB port on the configuration terminal.

To connect to the mini USB console port on the switch to a configuration terminal:

1. Connect the standard USB Type A connector to the USB port of the configuration terminal.

2. Click the following link, or copy it to the address bar on the browser to log in to download page of the USB console driver, and download the driver.

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

3. Run Installer to preinstall the driver. After the preinstallation finishes, the system pops up a dialog box to indicate a successful preinstallation.

4. Connect the USB mini-Type B connector to the Mini USB console port on the switch. The system installs the driver automatically.

Setting terminal parameters

To configure and manage the switch through the console port, you must run a terminal emulator program, TeraTermPro 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

The following are the required terminal settings:

· Bits per second—9600.

· Data bits—8.

· Stop bits—1.

· Parity—None.

· Flow control—None.

Powering on the switch

1. Before powering on the switch, verify that the following conditions are met:

¡ All the fan tray slots have a fan tray installed.

¡ The power cords are connected correctly.

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

¡ The console cable is connected correctly.

¡ The configuration terminal (a PC, for example) has started, and its serial port settings are consistent with the console port settings on the switch.

2. Power on the switch.

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

3. After the startup completes, you can access the CLI to configure the switch.

For more information about the configuration commands and CLI, see H3C S9820-8C Switch Configuration Guides and H3C S9820-8C Switch Command References.

4 Maintenance and troubleshooting

Power module failure

Symptom

The status LED on a power module is not steady green (active state) or flashing green (standby state)

For more information about the power module LED, see H3C PSR1600B-12A-B Power Modules User Manual.

Solution

To resolve the issue:

1. Verify that the power cord is connected correctly.

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

3. Verify that the operating temperature of the switch is in the acceptable range and adequate ventilation is available for the power module.

4. If the issue persists, contact H3C Support.

To replace a power module, see "Installing and removing power modules."

Configuration terminal display issues

No output

Symptom

The configuration terminal does not have any output when the switch is powered on.

Solution

To resolve the issue:

1. Verify that the power system is operating correctly.

2. Verify that the console cable is connected correctly.

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

4. If the issue persists, contact H3C Support.

Garbled output

Symptom

The output of the configuration terminal is garbled.

Solution

To resolve the issue:

1. Verify that configuration terminal settings are correct:

¡ Baud rate—9600.

¡ Data bits—8.

¡ Parity—None.

¡ Stop bits—1.

¡ Flow control—None.

2. If the issue persists, contact H3C Support.

H3C S9820-8C Switch Installation Guide-6W105

1 Preparing for installation

Safety recommendations

Grounding the switch

Installing/removing fan trays

Installing and removing power modules

Connecting the power cord for a power module

Connecting the console cable

Powering on the switch

4 Maintenance and troubleshooting

Configuration terminal display issues

Symptom

Solution

Garbled output

Symptom

Solution

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