To avoid any equipment damage or bodily injury caused by improper 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 of the equipment room and keep the air inlet and outlet vents of the switch free of obstruction.

· Make sure the power input voltage is as required by the power supply.

· To avoid electrical shocks, do not open the chassis while the switch is operating or when the switch is just powered off.

· During switch installation, wear an ESD wrist strap. Make sure the strap makes good skin contact and is reliably grounded.

Examining the installation site

The switch must be used indoors. You can mount your switch in a rack or on a workbench. Make sure the following requirements are met:

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

· The rack or workbench 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 device from entering the device.

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

· The rack or workbench 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

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 the temperature and humidity requirements of different switch models, see technical specifications in 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 dust concentration limits in the equipment room.

Table1-1 Dust concentration limits in the equipment room

Substance	Particle diameter	Concentration limit
Dust particles	≥ 0.5 µm	≤ 3.5 × 10⁶ particles/m³
Dust particles	≥ 5 µm	≤ 3 × 10⁴ particles/m³
Dust (suspension)	≤ 75 µm	≤ 0.2 mg/m³
Dust (sedimentation)	75 µm to 150 µm	≤ 1.5 mg/(m²h)

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 in the equipment room do not exceed the concentration limits as shown in Table1-2.

Table1-2 Corrosive gas concentration limits in the equipment room

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 1 laser device.

Installation tools

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

· ESD wrist strap

· Flat-blade screwdriver

· Phillips screwdriver

· Needle-nose pliers

· Diagonal pliers

· Crimping tool

· Marker

· Heat gun

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.

Figure2-1 Hardware installation flow

Installing the switch in a 19-inch rack

You can use front and rear mounting brackets to mount the switch in a 19-inch rack. The front mounting brackets can be installed near the port side or power supply side as required. See Table2-2 for the racks available for the switch.

Table2-2 Racks available for the switch

Device model	Racks available for the switch
S5560X-30F-HI S5560X-54F-HI	· With the wide flange of the rear mounting brackets inside the rack—Rack with a depth (distance between the front and rear rack posts) in the range of 327 to 494 mm (12.87 to 19.45 in). · With the wide flange of the rear mounting brackets outside the rack—Rack with a depth in the range of 172 to 339 mm (6.77 to 13.35 in). The distance from the rear rack posts to the inner surface of the cabinet door must be larger than 153 mm (6.02 in).
S5560X-34C-HI S5560X-58C-HI	· With the wide flange of the rear mounting brackets inside the rack—Rack with a depth in the range of 355 × 521 mm (13.98 × 20.51 in). · With the wide flange of the rear mounting brackets outside the rack—Rack with a depth in the range of 199 × 365 mm (7.83 × 14.37 in). The distance from the rear rack posts to the inner surface of the cabinet door must be larger than 153 mm (6.02 in).

Device model

Racks available for the switch

S5560X-30F-HI

S5560X-54F-HI

· With the wide flange of the rear mounting brackets inside the rack—Rack with a depth (distance between the front and rear rack posts) in the range of 327 to 494 mm (12.87 to 19.45 in).

· With the wide flange of the rear mounting brackets outside the rack—Rack with a depth in the range of 172 to 339 mm (6.77 to 13.35 in). The distance from the rear rack posts to the inner surface of the cabinet door must be larger than 153 mm (6.02 in).

S5560X-34C-HI

S5560X-58C-HI

· With the wide flange of the rear mounting brackets inside the rack—Rack with a depth in the range of 355 × 521 mm (13.98 × 20.51 in).

· With the wide flange of the rear mounting brackets outside the rack—Rack with a depth in the range of 199 × 365 mm (7.83 × 14.37 in). The distance from the rear rack posts to the inner surface of the cabinet door must be larger than 153 mm (6.02 in).

Figure2-2 Procedure for rack-mounting the switch

NOTE:

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

Mounting brackets and shoulder screw

Table2-3 Mounting brackets and shoulder screw

Switch model	Front mounting bracket	Rear mounting bracket and shoulder screw
S5560X-34C-HI S5560X-58C-HI	Front mounting bracket A (provided)	Provided
S5560X-30F-HI S5560X-54F-HI	Front mounting bracket B (provided)	Provided

Switch model

Front mounting bracket

Rear mounting bracket and shoulder screw

S5560X-34C-HI

S5560X-58C-HI

Front mounting bracket A (provided)

Provided

S5560X-30F-HI

S5560X-54F-HI

Front mounting bracket B (provided)

Provided

Figure2-3 Front mounting bracket and screw

(1) Screw hole for attaching the bracket to the switch	(2) Screw hole for attaching the bracket to the rack
(3) M4 screw

Figure2-4 Rear mounting bracket and shoulder screw

(1) Screw hole for attaching the bracket to the rack	(2) Shoulder screw

Rack-mounting the switch

Attaching the front mounting brackets and shoulder screws to the switch

The switch provides two installation positions on its side for the front mounting brackets. One is near the power supply side and one is near the port side. The following procedure attaches the front mounting brackets to the installation position near the power supply side. The port-side mounting is similar.

To attach the front mounting brackets and shoulder screws to the switch:

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

2. Align the round holes in the wide flange of one front mounting bracket with the screw holes in the chassis.

¡ For front mounting bracket A, see Figure2-5.

¡ For front mounting bracket B, see Figure2-6.

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

4. Repeat the preceding two steps to attach the other mounting bracket to the chassis.

5. Unpack the shoulder screws and attach them to the chassis.

Two installation positions as red-marked in Figure2-5 and Figure2-6 are available for shoulder screws. Select one as required.

Figure2-5 Attaching front mounting bracket A and shoulder screw to the chassis (S5560X-34C-HI switch)

Figure2-6 Attaching front mounting bracket B and shoulder screw to the chassis (S5560X-30F-HI switch)

Attaching the rear mounting brackets to the rack

1. Determine the switch installation position in the rack.

2. Install cage nuts (user-supplied) in the rear rack posts. Make sure the corresponding cage nuts on the left and right rear rack posts are at the same height.

3. Orient the rear mounting brackets with the wide flange inside or outside the rack as required.

4. Use M6 screws (user-supplied) to attach the rear mounting brackets to the rear posts, as shown in Figure2-7 and Figure2-8.

Do not fully tighten the M6 screws before mounting the switch in the rack.

Figure2-7 Attaching the rear mounting brackets to the rack with the wide flange inside the rack

Figure2-8 Attaching the rear mounting brackets to the rack with the wide flange outside the rack

Mounting the switch in the rack

The procedure is the same for using front mounting brackets A or B to rack-mount the switch. Front mounting brackets B is used as an example in the following figures.

To mount the switch in the rack:

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

2. Make sure the front mounting brackets and shoulder screws are securely attached to the two sides of the switch.

3. Attach cage nuts (user-supplied) to the front rack posts. Make sure the corresponding cage nuts on the left and right front rack posts are at the same height.

4. One person supports the chassis bottom with one hand, holds the front part of the chassis with the other, and pushes the chassis into the rack gently. Make sure the shoulder screws rest firmly on the upper edge of the rear mounting brackets. See Figure2-9, and Figure2-10.

5. The other person attaches the front mounting brackets with M6 screws (user-supplied) to the front rack posts. Make sure the switch is installed securely in the rack. See Figure2-9, and Figure2-10.

Figure2-9 Mounting the S5560X-30F-HI switch in the rack (with the wide flange of the rear mounting brackets inside the rack)

Figure2-10 Mounting the S5560X-30F-HI switch in the rack (with the wide flange of the rear mounting brackets outside the rack)

Mounting the switch on a workbench

IMPORTANT:

· Reserve a minimum clearance of 10 cm (3.9 in) around the chassis for heat dissipation.

· Do not place heavy objects on the switch.

To mount the switch on a workbench:

1. Verify that the workbench is sturdy and reliably grounded.

2. Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.

3. Attach the rubber feet to the four round holes in the chassis bottom.

4. Place the switch with upside up on the workbench.

Grounding the switch

WARNING!

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

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.

NOTE:

The power and grounding terminals in this section are for illustration only.

Grounding the switch with a grounding strip

CAUTION:

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

· To guarantee the grounding effect and avoid switch damage, use the grounding cable provided with the switch to connect the switch to a grounding strip in the equipment room.

If a grounding strip is available at the installation site, use the grounding cable provided with the switch to connect the switch to the grounding strip.

Connecting the grounding cable to the chassis

1. Remove the grounding screw from the grounding hole in the rear panel of the switch chassis.

2. Use the grounding screw to attach the ring terminal of the grounding cable to the grounding screw hole. Fasten the screw.

IMPORTANT:

Orient the grounding cable as shown in Figure2-11 so that you can easily install or remove the removable components.

Figure2-11 Connecting the grounding cable to the chassis

(1) Grounding screw	(2) Ring terminal
(3) Grounding sign	(4) Grounding hole
(5) Grounding cable

Connecting the grounding cable to a grounding strip

1. Cut the grounding cable to a length required for connecting to the grounding strip.

2. Use diagonal pliers to strip 20 mm (0.79 in) of insulation off the end of the grounding cable. Then use needle-nose pliers to bend the bare metal part to the shape as shown in Figure2-12. Make sure the bended part can securely attached to the grounding post on the grounding strip.

3. Attach the bended part of the grounding cable to the grounding post and use the hex nut to fasten the bended part to the post.

Figure2-12 Connecting the grounding cable to a grounding strip

(1) Grounding post	(2) Grounding strip
(3) Grounding cable	(4) Hex nut

Grounding the switch with a grounding conductor buried in the earth ground

If the installation site does not have any grounding strips, but earth ground is available, hammer a 0.5 m (1.64 ft) or longer angle iron or steel tube into the earth ground to serve as a grounding conductor.

The dimensions of the angle iron must be a minimum of 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in). The steel tube must be zinc-coated and its wall thickness must be a minimum of 3.5 mm (0.14 in).

Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion protection.

Figure2-13 Grounding the switch by burying the grounding conductor into the earth ground

(1) Grounding screw	(2) Chassis rear panel	(3) Grounding cable
(4) Earth	(5) Welding point	(6) Grounding conductor

Installing and removing a fan tray

CAUTION:

· You can power on the switch only when the switch has two fan trays of the same model installed.

· Do not leave any slots empty when the switch is operating. Install a module or filler panel in the slots.

· If both fan trays fail while the switch is operating, replace them within 2 minutes.

· If one fan tray fails while the switch is operating, perform either of the following tasks:

¡ If the ambient temperature is not higher than 27°C (80.6°F), replace the fan tray within 24 hours and make sure the failed fan tray is in position before the replacement.

¡ If the ambient temperature is higher than 27°C (80.6°F), replace the fan tray immediately.

· If you power cycle the switch after a fan tray fails, the switch will fail to start up.

The switch comes with empty fan tray slots. It supports the LSWM1FANSCE, LSWM1FANSCBE, FAN-40F-1-A, and FAN-40B-1-A fan trays.

· The LSWM1FANSCE fan tray provides power supply-side intake and port-side exhaust airflows. The fan tray handle is blue.

· The LSWM1FANSCBE fan tray provides port-side intake and power supply-side exhaust airflows. The fan tray handle is red.

· The FAN-40F-1-A fan tray provides power supply-side intake and port-side exhaust airflows. The fan tray handle is blue.

· The FAN-40B-1-A fan tray provides port-side intake and power supply-side exhaust airflows. The fan tray handle is red.

Select the fan trays for the switch based on the ventilation requirements at the installation site. For the fan trays available for the switch, see removable fan trays in Hardware Information and Specifications.

The installation and removable procedures are the same for the LSWM1FANSCE, LSWM1FANSCBE, FAN-40F-1-A, and FAN-40B-1-A fan trays. The following procedure installs and removes an LSWM1FANSCBE fan tray.

Installing a fan tray

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

2. Unpack the fan tray and verify that the fan tray model is as required.

3. Orient the fan tray with the TOP mark facing up.

4. Align the fan tray with the fan tray slot. Holding the fan tray handles, slide the fan tray into the slot along the guide rails. Make sure the fan tray is fully seated in the slot and has a firm contact with the backplane.

To prevent damage to the fan tray or the connectors in the chassis, 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.

Figure2-14 Installing a fan tray

IMPORTANT:

· At the first login to the switch, use the fan prefer-direction command to set the airflow direction of the switch to be the same as the airflow direction of the fan trays. If the fan trays have a different airflow direction than the switch, the system outputs traps and logs to notify you to replace the fan trays.

· By default, the switch uses the same airflow direction (power-to-port) as the LSWM1FANSCBE and FAN-40B-1-A fan trays.

Removing a fan tray

WARNING!

· To avoid bodily injury, disturbing the dynamic balance of the fan tray, and causing loud noises, do not touch the rotation axis, or any bare wires, fan blades, or terminals on the fan tray.

· Do not place the fan tray in a moist place. Prevent liquid from entering the fan tray.

· Fan trays with faulty internal wiring and conductors require maintenance from maintenance engineers. Do not disassemble the faulty fan trays.

To remove a fan tray:

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

2. Holding the fan tray handles, pull the fan tray slowly out of the slot along the guide rails.

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

Figure2-15 Removing a fan tray

Installing and removing a power supply

WARNING!

· To avoid bodily injury or switch damage, strictly follow the procedures in Figure2-16 and Figure2-17 to install and remove a power supply.

· You must provide a circuit breaker for each power supply.

Figure2-16 Installation procedure

Figure2-17 Removal procedure

The switch provides two power supply slots. It comes with power supply slot PWR1 empty and power supply slot PWR2 installed with a filler panel. You can install one or two power supplies for the switch as required. For the power supplies available for the switch, see removable power supplies in Hardware Information and Specifications.

Installing a power supply

The installation procedures are the same for the PSR250-12A, PSR250-12A1, and PSR450-12D power supplies. The following procedure installs a PSR250-12A1 power supply.

To install a power supply:

1. Wear an ESD wrist strap. 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.

Put your forefinger into the hole in the filler panel and then pull the filler panel out of the slot gently.

Keep the removed filler panel secure for future use.

Figure2-18 Removing the filler panel from the target power supply slot

3. Unpack the power supply. Make sure the power supply model is as required.

Keep the packaging box and packaging bag for the power supply secure for future use.

4. Correctly orient the power supply. Make sure the lettering on the power supply is upward.

5. Align 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 into the slot along the guide rails until the latch of the power supply clicks into the slot.

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

Figure2-19 Installing a power supply

Removing a PSR250-12A/PSR250-12A1 power supply

The removal procedures are the same for the PSR250-12A and PSR250-12A1 power supplies. The following procedure removes a PSR250-12A1 power supply.

To remove a PSR250-12A/PSR250-12A1 power supply:

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

2. Disconnect the power cord.

3. Press the latch on the power supply towards the handle side, and pull the power supply part way out of the slot along the guide rails.

4. Grasping the handle of the power supply with one hand and supporting module bottom with the other, pull the power supply slowly out of the slot along the guide rails.

5. Place the removed power supply on an anti-static mat or put it into its packaging bag.

6. If you are not to install a new power supply in the slot, install a filler panel in the slot to prevent dust and ensure good ventilation.

Figure2-20 Removing a power supply

Removing a PSR450-12D power supply

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

2. Use a flat-head screwdriver to loosen the screws on the power cord connector and then pull out the power cord connector.

3. Hold the handle of the power supply with one hand, press the latch on the power supply towards the handle direction with your thumb, and pull the power supply part way out of the slot. Supporting the power supply bottom with the other, slowly pull the power supply out of the slot along the guide rails.

Figure2-21 Disconnecting the power cord

(1) Use a flat-head screwdriver to loosen the screws on the power cord connector.
(2) Pull out the power cord connector.

Connecting the power cord for a PSR250-12A/PSR250-12A1 power supply

The power cord connection procedure is the same for the PSR250-12A and PSR250-12A1 power supplies. The following procedure connects the power cord for a PSR250-12A1 power supply.

To connect the power cord for a power supply:

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

2. Plug the female connector of the power cord into the power receptacle on the power supply, as shown by callout 1 in Figure2-22.

3. Use a cable tie to secure the power cord to the handle of the power supply, as shown by callout 2 and callout 3 in Figure2-22.

4. Connect the other end of the power cord to an AC power source or a high-voltage DC power source.

Figure2-22 Connecting the power cord for a PSR250-12A1 power supply

Connecting the power cord for a PSR450-12D power supply

1. Correctly orient the power cord connector and insert the connector into the power receptacle.

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

3. Connect the other end of the power cord to a DC power source.

Figure2-23 Connecting the power cord for a PSR450-12D power supply

Installing and removing an expansion module

CAUTION:

· Do not touch the surface-mounted components on an expansion module directly with your hands.

· Do not use excessive force when you install or remove an expansion module.

· Do not install or remove an expansion module while the switch is starting up.

The switch provides two expansion slots on the rear panel. For the expansion modules available for the switch, see expansion modules in Hardware Information and Specifications.

The installation and removal procedures are similar for expansion modules. The following procedures install and remove LSWM4SP8PM (with an ejector lever) and LSPM6FWD (without an ejector lever) interface modules.

Installing an expansion module

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

2. Use a Phillips screwdriver to remove the screw on the filler panel in the target expansion slot. Then remove the filler panel.

Keep the filler panel secure for future use.

Figure2-24 Removing the filler panel from the target expansion slot

3. Unpack the expansion module.

4. (Optional.) If the expansion module has an ejector lever, perform the following steps to install it:

a. Fully open the ejector lever, as shown by callout 1 in Figure2-25.

b. Gently push the expansion module into the slot along the guide rails until the expansion module has good contact with the chassis. See callout 2 in Figure2-25.

c. Close the ejector lever, as shown by callout 3 in Figure2-25.

d. Use a Phillips screwdriver to fasten the captive screw on the expansion module to secure the module in the slot. See callout 4 in Figure2-25.

Figure2-25 Installing an expansion module with an ejector lever (LSWM4SP8PM)

5. (Optional.) If the expansion module does not have an ejector lever, perform the following steps to install it:

a. Gently push the expansion module into the slot along the guide rails until the expansion module has good contact with the chassis. See callout 1 in Figure2-26.

b. Use a Phillips screwdriver to fasten the captive screw on the expansion module to secure the module in the slot. See callout 2 in Figure2-26.

Figure2-26 Installing an expansion module without an ejector lever (LSPM6FWD)

NOTE:

An LSPM6FWD firewall module including its handle adds 75 mm (2.95 in) to the chassis depth.

Removing an expansion module

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

2. Use a Phillips screwdriver to remove the captive screw on the expansion module.

3. Fully open the ejector lever.

Skip this step for an expansion module that does not have an ejector lever.

4. Gently pull the expansion module out of the slot along the guide rails.

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

Verifying the installation

Before powering on the switch, verify the following items:

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

· The rack or workbench on which the switch is mounted is stable.

· The grounding cable is securely connected.

· The power source specifications are as required by the device.

· 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 switch.

3 Accessing the switch for the first time

Connecting the switch to a configuration terminal

You can connect the switch to a configuration terminal by using the serial console port or the micro USB console port. Only the micro USB console port takes effect if you connect both the serial console port and micro USB console port.

In Figure3-1, the switch is connected to a configuration terminal (PC as an example) from the serial console port.

Figure3-1 Connecting the switch to a configuration terminal

As shown in Table3-1, three types of console cables can be used for connecting the switch to a configuration terminal. As a best practice, use a serial console cable for connection. The switch is not provided with a serial console cable or a micro USB console cable. Prepare an H3C console cable or prepare a micro USB console cable yourself.

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 micro USB console port for connection	Micro USB console cable	USB connector	Micro USB connector

Connecting a DB9-to-RJ45 console cable

CAUTION:

Follow these guidelines when you connect a DB9-to-RJ45 console cable:

· 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 DB9-to-RJ45 serial console cable is an 8-core shielded 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 a configuration terminal.

Figure3-2 DB9-to-RJ45 console cable

Table3-2 DB9-to-RJ45 console cable signal 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 the switch to a configuration terminal (for example, a PC) by using 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 installing the driver, remove and reconnect the USB-to-RJ45 console cable to the configuration terminal after driver installation.

Figure3-3 USB-to-RJ45 console cable

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 switch 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.

Figure3-4 Driver installation wizard

5. Click Finish after the drive installation is completed.

Figure3-5 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 micro USB console cable

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

Figure3-6 Micro USB console cable

To connect the switch to a configuration terminal, for example a PC, by using a micro USB console cable:

1. Connect the standard USB connector to the USB port of the PC.

2. Connect the micro USB connector to the micro USB console port of the switch.

3. Click the following link, or copy it to the address bar on the browser to log in to download and install the USB console driver on the configuration terminal.

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

4. Select a driver program according to the operating system you use:

¡ XR21V1410_XR21B1411_Windows_Ver1840_x86_Installer.EXE—32-bit operating system.

¡ XR21V1410_XR21B1411_Windows_Ver1840_x64_Installer.EXE—64-bit operating system.

5. Click Next on the installation wizard.

Figure3-7 Device Driver Installation Wizard

6. Click Continue Anyway.

Figure3-8 Software Installation

7. Click Finish.

Figure3-9 Completing the device driver installation wizard

Setting terminal parameters

To configure and manage the switch through the console port, you must run a terminal emulator program, such as TeraTermPro, 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—9,600.

· Data bits—8.

· Parity—None.

· Stop bits—1.

· Flow control—None.

Starting the switch

Pre-start checklist

Before powering on the switch, verify the following items:

· The power cord is correctly connected.

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

· The console cable is correctly connected.

· The PC has started, and the terminal parameters have been correctly configured.

Powering on the switch

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 differ with software versions. For more information about Boot ROM menu options, see the software-matching release notes for the device.

After the startup process is completed, you can access the CLI to configure the switch.

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

4 Setting up an IRF fabric

You can use H3C IRF technology to connect and virtualize S5560X-HI switches into a large virtual switch called an "IRF fabric" for flattened network topology, and high availability, scalability, and manageability.

An S5560X-HI switch can set up an IRF fabric only with switches from the same switch series.

IRF fabric setup flowchart

Figure4-1 IRF fabric setup flowchart

To set up an IRF fabric:

Step	Description
1. Plan IRF fabric setup	Plan the installation site and IRF fabric setup parameters: · Planning IRF fabric size and the installation site · Identifying the master switch and planning IRF member IDs · Planning IRF topology and connections · Identifying physical IRF ports on the member switches · Planning the cabling scheme
2. Install IRF member switches	See "Installing the switch in a 19-inch rack" or "Mounting the switch on a workbench."
3. Connect ground wires and power cords	See "Grounding the switch" and "Connecting the power cord."
4. Power on the switches	N/A
5. Configure basic IRF settings	See the virtual technologies configuration guide for the switch.
6. Connect the physical IRF ports	Connect physical IRF ports on switches. All switches except the master switch automatically reboot, and the IRF fabric is established.

Planning IRF fabric setup

This section describes issues that an IRF fabric setup plan must cover.

Planning IRF fabric size and the installation site

Choose switch models and identify the number of required IRF member switches, depending on the user density and upstream bandwidth requirements. The switching capacity of an IRF fabric equals the total switching capacities of all member switches.

Plan the installation site depending on your network solution, as follows:

· Place all IRF member switches in one rack for centralized high-density access.

· Distribute the IRF member switches in different racks to implement the ToR access solution for a data center.

NOTE:

For the maximum IRF member devices supported by the switch, see the release notes that come with the switch.

Identifying the master switch and planning IRF member IDs

Determine which switch you want to use as the master for managing all member switches in the IRF fabric.

An IRF fabric has only one master switch. You configure and manage all member switches in the IRF fabric at the CLI of the master switch. IRF member switches automatically elect a master.

You can affect the election result by assigning a high member priority to the intended master switch. For more information about master election, see the virtual technologies configuration guide for the switch.

Prepare an IRF member ID assignment scheme. An IRF fabric uses member IDs to uniquely identify and manage its members, and you must assign each IRF member switch a unique member ID.

Planning IRF topology and connections

You can create an IRF fabric in daisy chain topology or more reliable ring topology. In ring topology, the failure of one IRF link does not cause the IRF fabric to split as in daisy chain topology. Instead, the IRF fabric changes to a daisy chain topology without interrupting network services.

You connect the IRF member switches through IRF ports, the logical interfaces for the connections between IRF member switches. Each IRF member switch has two IRF ports: IRF-port 1 and IRF-port 2. To use an IRF port, you must bind a minimum of one physical port to it.

When connecting two neighboring IRF member switches, you must connect the physical ports of IRF-port 1 on one switch to the physical ports of IRF-port 2 on the other switch.

The switch can provide 5G/10GE/25G/40GE IRF connections. See Table4-1 for the available IRF physical ports. You can bind several IRF physical ports to an IRF port for increased bandwidth and availability.

Figure4-2 and Figure4-3 show the topologies of an IRF fabric made up of three S5560X-54F-HI switches. The IRF port connections in the two figures are for illustration only, and more connection methods are available.

Figure4-2 IRF fabric in daisy chain topology

Figure4-3 IRF fabric in ring topology

Identifying physical IRF ports on the member switches

Identify the physical IRF ports on the member switches according to your topology and connection scheme.

Table4-1 shows the physical ports that can be used for IRF connection and the port use restrictions.

Table4-1 Candidate physical IRF ports and their use restrictions

Chassis	Candidate physical IRF ports	Use restrictions
S5560X-34C-HI S5560X-58C-HI	· 6 × SFP+ ports on the front panel · The following ports provided on the expansion modules: ¡ 5G/2.5G/1000BASE-T autosensing Ethernet ports ¡ 10G/5G/2.5G/1000BASE-T autosensing Ethernet ports ¡ SFP+ ports ¡ SFP28 ports ¡ QSFP+ ports	· Physical ports on interface modules and the front panel can be bound to the same IRF port. · All physical ports to be bound to an IRF port must have the same data rate. · A QSFP+ port that is split into four virtual SFP+ ports cannot be used as a physical IRF port.
S5560X-30F-HI S5560X-54F-HI	· 6 × SFP+ ports on the front panel · 2 × QSFP+ ports on the front panel · The following ports provided on the expansion modules: ¡ 5G/2.5G/1000BASE-T autosensing Ethernet ports ¡ 10G/5G/2.5G/1000BASE-T autosensing Ethernet ports ¡ SFP+ ports ¡ SFP28 ports ¡ QSFP+ ports

Chassis

Candidate physical IRF ports

Use restrictions

S5560X-34C-HI

S5560X-58C-HI

· 6 × SFP+ ports on the front panel

· The following ports provided on the expansion modules:

¡ 5G/2.5G/1000BASE-T autosensing Ethernet ports

¡ 10G/5G/2.5G/1000BASE-T autosensing Ethernet ports

¡ SFP+ ports

¡ SFP28 ports

¡ QSFP+ ports

· Physical ports on interface modules and the front panel can be bound to the same IRF port.

· All physical ports to be bound to an IRF port must have the same data rate.

· A QSFP+ port that is split into four virtual SFP+ ports cannot be used as a physical IRF port.

S5560X-30F-HI

S5560X-54F-HI

· 6 × SFP+ ports on the front panel

· 2 × QSFP+ ports on the front panel

· The following ports provided on the expansion modules:

¡ 5G/2.5G/1000BASE-T autosensing Ethernet ports

¡ 10G/5G/2.5G/1000BASE-T autosensing Ethernet ports

¡ SFP+ ports

¡ SFP28 ports

¡ QSFP+ ports

Planning the cabling scheme

The IRF physical ports on the switch use the following transceiver modules and cables for connection:

· SFP+ port—SFP+ transceiver module and optical fiber or SFP+ cable.

· QSFP+ port—QSFP+ transceiver module and optical fiber or QSFP+ cable.

· SFP28 port—SFP28 transceiver module and optical fiber or SFP28 cable.

· 5G/2.5G/1000BASE-T autosensing Ethernet port—Twisted pair cable.

· 10G/5G/2.5G/1000BASE-T autosensing Ethernet port—Twisted pair cable.

For the available transceiver module and cable types, see ports in Hardware Information and Specifications.

For a short-distance IRF connection in an equipment room, use a twisted pair/SFP+/QSFP+/SFP28 cable. For a long-distance IRF connection, use SFP+/QSFP+/SFP28 transceiver modules and optical fibers.

The following subsections describe several H3C recommended IRF connection schemes by using SFP+ cables and SFP+ transceiver modules and fibers. All these schemes use a ring topology.

IMPORTANT:

In these schemes, all physical IRF ports are located on the same side. If physical IRF ports are on different sides, you must measure the distance between them to select an appropriate cable.

Connecting the IRF member switches in one rack

Connect the IRF member switches (9 switches in this example) in a rack as shown in Figure4-4. The switches in the ring topology (see Figure4-5) are in the same order as connected in the rack.

Figure4-4 Connecting the switches in one rack

Figure4-5 IRF fabric topology

Connecting the IRF member switches in a ToR solution

You can install IRF member switches in different racks side by side to deploy a top of rack (ToR) solution.

Figure4-6 ToR cabling

Configuring basic IRF settings

After you install the IRF member switches, power on the switches, and log in to each IRF member switch (see the fundamentals configuration guide for the switch) to configure their member IDs, member priorities, and IRF port bindings.

Follow these guidelines when you configure the switches:

· Assign the master switch higher member priority than any other switch.

· Bind physical ports to IRF port 1 on one switch and to IRF port 2 on the other switch. You perform IRF port binding before or after connecting IRF physical ports depending on the software release.

· To bind the ports on an interface module to an IRF port, you must install the interface module first.

· Execute the display irf configuration command to verify the basic IRF settings.

For more information about configuring basic IRF settings, see the virtual technologies configuration guide for the switch.

Connecting the physical IRF ports

Use twisted pair/SFP+/QSFP+/SFP28 cables or SFP+/QSFP+/SFP28 transceiver modules and fibers to connect the IRF member switches as planned.

Wear an ESD wrist strap when you connect twisted pair/SFP+/QSFP+/SFP28 cables or SFP+/QSFP+/SFP28 transceiver modules and fibers. For how to connect them, H3C Transceiver Modules and Network Cables Installation Guide.

Verifying the IRF fabric setup

To verify the basic functionality of the IRF fabric after you finish configuring basic IRF settings and connecting IRF ports:

1. Log in to the IRF fabric through the console port of any member switch.

2. Create a Layer 3 interface, assign it an IP address, and make sure the IRF fabric and the remote network management station can reach each other.

3. Use Telnet, web, or SNMP to access the IRF fabric from the network management station. (See the fundamentals configuration guide for the switch.)

4. Verify that you can manage all member switches as if they were one node.

5. Display the running status of the IRF fabric by using the commands in Table4-2.

Table4-2 Displaying and maintaining IRF configuration and running status

Task	Command
Display information about the IRF fabric.	display irf
Display all members’ IRF configurations that take effect at a reboot.	display irf configuration
Display IRF fabric topology information.	display irf topology

NOTE:

To avoid IP address collision and network problems, configure a minimum of one multi-active detection (MAD) mechanism to detect the presence of multiple identical IRF fabrics and handle collisions. For more information about MAD detection, see the virtual technologies configuration guide for the switch.

5 Maintenance and troubleshooting

Power supply failure

Symptom

The PWR LED for a power supply is not steady green.

The switch uses removable power supplies. To identify the operating status of a power supply on the switch, observe the PWR1 or PWR2 LED on the front panel of the switch. For more information about the PWR1 and PWR2 LEDs, see H3C PSR250-12A & PSR250-12A1 Power Modules User Manual and H3C PSR450 Power Module Series User Manual.

Solution

To resolve the issue:

1. Verify that the power cord is correctly connected.

2. Verify that the power source meets the requirement.

3. Verify that the operating temperature of the switch is in an acceptable range and the power supply has good ventilation.

4. If the issue persists, contact H3C Support.

To replace a power supply, see "Installing and removing a power supply."

Fan tray failure

WARNING!

· If both fan trays fail during switch operation, replace them within 2 minutes.

· If one fan tray fails, perform either of the following tasks:

¡ If the ambient temperature is not higher than 27°C (80.6°F), replace the fan tray within 24 hours and make sure the failed fan tray remains in position before the replacement.

¡ If the ambient temperature is higher than 27°C (80.6°F), replace the fan tray immediately.

The switch uses removable fan trays. If a fan tray fails, see "Installing and removing a fan tray" to replace the fan tray.

Configuration terminal display issues

If the configuration environment setup is correct, the configuration terminal displays booting information when the switch is powered on. If the setup is incorrect, the configuration terminal displays nothing or garbled text.

No display

Symptom

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

Solution

To resolve the issue:

1. Verify that the power supply is supplying power to the switch 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 following settings are configured for the terminal:

¡ Baud rate—9,600.

¡ Data bits—8.

¡ Stop bits—1.

¡ Parity—None.

¡ Flow control—None.

2. If the issue persists, contact H3C Support.

H3C S5560X-HI Switch Series Installation Guide-6W102

1 Preparing for installation

Safety recommendations

Attaching the front mounting brackets and shoulder screws to the switch

Attaching the rear mounting brackets to the rack

Mounting the switch in the rack

Connecting the grounding cable to a grounding strip

Installing and removing a power supply

Installing a power supply

Removing a PSR250-12A/PSR250-12A1 power supply

Connecting the power cord for a PSR250-12A/PSR250-12A1 power supply

Installing and removing an expansion module

Installing an expansion module

Removing an expansion module

Starting the switch

IRF fabric setup flowchart

Planning IRF fabric setup

Connecting the IRF member switches in one rack

Connecting the IRF member switches in a ToR solution

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Solution

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