To prevent electronic components from electrostatic discharge (ESD) damage, wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded before you touch any switch module.

Figure 1 Attaching an ESD wrist strap

(1) ESD jack (with an ESD sign)

Examining the installation site

The switch must be used indoors. To make sure the switch operates correctly and to prolong its service lifetime, the installation site must meet the load-bearing, temperature, humidity, cleanliness, EMI, grounding, power supply, ventilation, and space requirements. Reserve a minimum of 1.2 m (3.94 ft) of clearance between the switch and walls or other devices. For more information, see H3C S12500X-AF Switch Series Installation Guide.

Installation tools and equipment

No installation tools and equipment are provided with the switch. Prepare them yourself.

Installing the switch

Switch dimensions

Figure 2 Switch dimensions

(1) Fan tray handle	(2) Mounting bracket
(3) Cable management bracket

Rack requirements

Table 1 Rack requirements

Model	Switch dimensions	Rack requirements
S12502X-AF	· Height—133 mm (5.24 in) (3 RU). · Width—440 mm (17.32 in). · Total depth—1015 mm (39.96 in) ? 895 mm (35.24 in) for the chassis. ? 102 mm (4.02 in) from the rear side of the front mounting bracket ear to the management bracket front end. ? 30 mm (1.18 in) for the fan tray handle at the chassis rear.	· A minimum of 1.1 m (3.61 ft) in depth (recommended.) · A minimum of 130 mm (5.12 in) from the front rack post to the front door. · A minimum of 950 mm (37.40 in) from the front rack post to the rear door.

Model

Switch dimensions

Rack requirements

S12502X-AF

· Height—133 mm (5.24 in) (3 RU).

· Width—440 mm (17.32 in).

· Total depth—1015 mm (39.96 in)

? 895 mm (35.24 in) for the chassis.

? 102 mm (4.02 in) from the rear side of the front mounting bracket ear to the management bracket front end.

? 30 mm (1.18 in) for the fan tray handle at the chassis rear.

· A minimum of 1.1 m (3.61 ft) in depth (recommended.)

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

· A minimum of 950 mm (37.40 in) from the front rack post to the rear door.

NOTE:

As a best practice, use a rack that has a single door at the front.

Slide rail requirements

Table 2 Slide rail requirements

Max. chassis weight (full configuration)	Applicable slide rails
Max. chassis weight (full configuration)	Slide rail model	Adjustment range
70 kg (154.32 lb)	LSVM1BSR10	630 mm to 900 mm (24.80 in to 35.43 in)

NOTE:

Flanges of the LSVM1BSR10 slide rails are at the bottom so the slide rails do not occupy rack space.

Installing slide rails

1. Read the signs on the slide rails to identify the front and rear ends of the slide rails.

2. As shown in Figure 3, mark the position on the rack post for installing the slide rail.

a. Insert the locating pin at the bottom of the slide rail into the lowest square hole within the 2U space on the rack post.

b. Mark the uppermost square hole and lowermost square hole for installation on the rack post.

c. Mark the square holes at the same height on the other three rack posts. Make sure the slide rail installation positions are at the same height on the four rack posts.

3. Install cage nuts in the marked square holes on each rack post except for the uppermost marked square holes on the front rack posts. See callout 3 in Figure 3.

4. Perform the following task to secure the slide rail to the rack posts:

a. Align the installation holes on the front end of the slide rail with the cage nuts on the front rack post.

b. Compress the slide rail, making sure the locating pins at both ends of the slide rail are inserted into the lowest square holes within the 2U space on the rack posts.

c. Use screws to secure the slide rail to the rack posts.

Use only the two lowermost cage nuts on each front rack post. Reserve the uppermost cage nut on each front rack post for attaching mounting brackets.

Figure 3 Installing slide rails

(1) Locating pin	(2) Mark the cage nuts installation holes
(3) Install cage nuts in the marked square holes	(4) Use screws to secure a slide rail to the rack post

Installing cage nuts for attaching mounting brackets

Before mounting the chassis in the rack, install cage nuts on the front rack posts for attaching the mounting brackets by performing the following steps:

1. As shown in Figure 4, determine the cage nut installation holes and then mark them on the front rack post.

2. Install cage nuts in the marked square holes on the front rack posts. If you have installed screws in the two uppermost holes, remove them first.

Figure 4 Installing cage nuts

Mounting the switch in a rack

CAUTION:

· Hold the chassis handles to move the switch. Do not hold the handle of a fan tray, a power module, or a card to move the switch. Any attempt to carry the switch with these parts might cause equipment damage or even bodily injury.

· After you place the switch on the slide rails, do not leave go of your hands immediately because this might tip the switch, damaging the switch or even causing bodily injury.

· Do not place your hand into any slot when you move the chassis.

To mount the switch in the rack:

1. Face the rear of the chassis towards the front of the rack.

2. Move the switch by holding the chassis handles.

3. Place the switch on the slide rails from the front of the rack and slide the switch along the guide rails until the mounting brackets on the switch touch the front rack posts tightly, as shown by callout 1 in Figure 5.

4. Use screws provided with the switch to attach the mounting brackets to the rack posts.

If the mounting holes in the mounting brackets cannot align with the cage nuts on the rack, verify the following items:

? The bottom edge of the slide rail aligns with the middle of the narrower metal area between holes.

? The cage nuts are installed in the correct holes.

Figure 5 Mounting the switch in the rack

(1) Slide the chassis into the rack	(2) Use screws to secure the mounting brackets to the rack

Grounding the switch

CAUTION:

· Grounding the switch reliably is crucial to lightning protection and EMI protection. Ground the switch reliably before you use it.

· Use the grounding cable (yellow-green grounding cable) provided with the switch.

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

A grounding strip at the installation site is required to ground the switch.

To connect the grounding cable to the grounding strip:

1. Unpack the grounding cable.

The grounding cable provided with the switch is compliant with the NEBS standards. The two-hole grounding lug of the grounding cable is used for connecting the chassis. The ring terminal of the grounding cable is used for connecting the grounding strip.

2. Remove the grounding screws from the grounding holes at the rear of the chassis.

A grounding sign is provided with the grounding holes, as shown by callout 1 in Figure 6.

3. Use grounding screws to attach the two-hole grounding lug of the grounding cable to the chassis.

4. Connect the ring terminal of the grounding cable to a grounding post of the grounding strip, and fasten the grounding cable to the grounding strip with the hex nut.

Figure 6 Connecting the grounding cable to a grounding strip

(1) Grounding sign	(2) Use grounding screws to attach the two-hole grounding lug to the grounding point
(3) Grounding strip	(4) Grounding post	(5) Ring terminal	(6) Hex nut

Installing FRUs

This section describes the installation procedures for the MPUs, LPUs, fan trays, and power modules. For the compatibility matrix between these modules and the switch models, see H3C S12500X-AF Switch Series Installation Guide.

WARNING!

Long-time exposure to strong air flow might cause discomfort. As a best practice, do not stand close to the air outlet vents while the switch is operating. If you must be next to the switch on the air outlet vent side for an extended period, avoid the air flow or take other protective measures.

CAUTION:

For good ventilation of the switch, install filler panels in the empty card and power module slots.

Attaching an ESD wrist strap

To prevent electronic components from ESD damage, wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded before you install FRUs. See Figure 1 for attaching an ESD wrist strap.

Installing and removing MPUs

CAUTION:

· If you are not to install an MPU in an MPU slot, keep the filler panel in the slot.

· When you install an MPU, avoid damaging the connectors on the MPU.

You can install one MPU, or two MPUs for redundancy on the switch. If you are to install one MPU, install it in either of the MPU slots.

Installing an MPU

1. As shown by callout 1 in Figure 7, remove the filler panel from the target MPU slot.

Keep the removed filler panel secure for future use.

2. As shown by callout 2 in Figure 7, press the latch on the MPU to release the ejector lever. Rotate outward the ejector lever to the outmost.

3. As shown by callout 3 in Figure 7, orient the MPU with the upside up. Hold the MPU by the front panel with one hand and support the bottom with the other. Push the MPU steadily into the slot along the guide rails until it has firm contact with the slot.

Keep the MPU parallel to the slot to avoid touching other components in the chassis.

4. As shown by callout 4 in Figure 7, rotate inward the ejector lever until the latch locks the ejector lever in place.

Figure 7 Installing an MPU

Removing an MPU

1. As shown by callout 1 in Figure 8, press the latch to release the ejector lever.

2. Holding the ejector lever with one hand and the latch with the other, pull the MPU part out of the slot. See callout 2 in Figure 8.

3. Holding the MPU by the front panel with one hand and supporting the bottom with the other, pull the MPU steadily out of the slot along the guide rails.

Keep the MPU parallel to the slot to avoid touching other components in the chassis.

Figure 8 Removing an MPU

Installing LPUs

CAUTION:

A filler panel is provided with the switch. If you are not to install an LPU in a slot, install the filler panel in the slot.

The S12500X-AF H LPUs with the dimensions 50 × 433 × 520 mm (1.97 × 17.05 × 20.47 in) are available for the switch.

Removing a protective blank panel

WARNING!

The protective blank panel is heavy. To avoid bodily injury, use both hands to install or remove the protective blank panel.

A protective blank panel is installed over the LPU slots to avoid switch damage during transportation.

To remove the protective blank panel:

1. Remove the screws that secure the protective blank panel to the slot. See callout 1 in Figure 9.

2. As shown by callout 2 in Figure 9, remove the protective blank panel with both hands.

Keep the removed protective blank panel and screws secure for future use.

Figure 9 Removing the protective blank panel

Installing an LPU

The LPU edges and the ejector lever seats on the LPU slots have purple marks.

To install an LPU:

1. Orient the LPU with the upside up based on the orientation of characters on the LPU.

2. As shown by callout 1 in Figure 10, hold the LPU by the front panel with one hand and support its bottom with the other. Slide the LPU steadily into the target slot along the guide rails.

Keep the LPU parallel to the slot to avoid touching other components in the chassis.

3. As shown by callout 2 in Figure 10, pull the ejector levers outward to the outmost when most of the LPU is inserted into the slot.

4. Push the LPU until the brakes on its ejector levers touch the slot edges tightly.

5. As shown by callout 3 in Figure 10, continue to push the LPU by its middle part on the front panel until you cannot move it.

6. As shown by callout 4 in Figure 10, push the ejector levers inward until they come in close contact with the panel.

7. As shown by callout 5 in Figure 10, fasten the captive screws to secure the LPU to the slot.

Figure 10 Installing an LPU

(1) Push the LPU slowly along the guide rails into the slot	(2) Pull the ejector levers outward
(3) Push the LPU by the middle part on the front panel	(4) Push the ejector levers inward
(5) Fasten the captive screws on the LPU

Installing the filler panel

1. As shown by callout 1 in Figure 11, align the two captive screws on the filler panel with the installation holes on the slot.

2. As shown by callout 2 in Figure 11, fasten the captive screws on the filler panel.

Figure 11 Installing the filler panel

Installing cable management brackets

CAUTION:

To avoid device damage, press the spring tab when you remove a cable management bracket.

The cable management brackets are installed on the two sides of the LPU slots. As a best practice, install cable management brackets after you have installed LPUs.

As shown in Figure 12, insert the cable management bracket end that has a spring tab into the cable management bracket hole until the bracket has close contact with the hole.

Figure 12 Installing a cable management bracket

(1) Spring tab on the cable management bracket
(2) Align the cable management bracket with the bracket hole

Installing and removing fan trays

Follow these restrictions and guidelines when you install a fan tray:

· The switch has two fan tray slots: FAN1 and FAN2. Install two fan trays on the switch.

· To prevent dust from entering the chassis, keep the filler panels or fan trays in position if the switch is not in use.

· The fan tray is hot swappable. Follow these guidelines when you hot swap a fan tray:

? Ensure electricity safety.

? Replace a fan tray only when the other fan tray is operating correctly.

? To prevent dust from entering the chassis, keep the failed fan tray in position before the replacement.

· To install a fan tray in slot FAN1, orient the fan tray so that the LED is on the left side of the front panel. To install a fan tray in slot FAN2, orient the fan tray so that the LED is on the right side of the front panel.

· To avoid damaging the fan tray, use both hands when installing or removing a fan tray.

· When you hot swap a fan tray, only one fan tray is operating and it automatically increases the fan rotation speed and makes louder noise. Take protection measures such as wearing an earmuff or earplug. In addition, make good preparation before the hot swapping to minimize the operation time.

Installing fan trays

To install a fan tray in slot FAN1 for the switch:

1. As shown by callouts 1 and 2 in Figure 13, remove the screws on the filler panel with a Phillips screwdriver. Supporting the bottom of the filler panel with one hand, use your thumb and forefinger of the other hand to hold the filler panel through the two holes and pull out the filler panel along the guide rails.

Keep the removed filler panel secure for future use.

2. Unpack the fan tray.

3. Orient the fan tray correctly. Align the fan tray with the fan tray slot.

4. Holding the fan tray handle with one hand and supporting the bottom of the fan tray with the other, insert the fan tray part way into the slot.

Keep the fan tray as steady as possible while inserting it into the slot.

5. Squeezing the captive screw at the air vents side with one hand and holding the fan tray handle with the other, push the fan tray fully into the slot.

6. Fasten the captive screws on the fan tray.

Figure 13 Installing a fan tray

Removing a fan tray

1. As shown by callout 1 in Figure 14, loosen the captive screws on the fan tray.

2. Squeezing the captive screw at the air vents side with one hand and holding the fan tray handle, pull the fan tray outward until it is disengaged from the chassis. Remove the fan tray after the fan stops rotating.

Figure 14 Removing a fan tray

Installing and removing power modules

Installing a power module

CAUTION:

The switch is shipped with the power module slots empty and with four filler panels for the power module slots. If you are not to install a power module in a slot, install a filler panel in the slot to prevent dust from entering the chassis.

The installation procedure is the same for AC and DC power modules.

To install a power module:

1. Use your forefinger to hold the filler panel through the hole and pull out the filler panel along the guide rails. See callout 1 in Figure 15.

2. Correctly orient the power module.

If you install the power module in a left power module slot, make sure the latch is above the handle. If you install the power module in a right power module slot, make sure the latch is below the handle.

3. Hold the handle of the power module with one hand, pull downward the latch with your thumb, and support the bottom of the power module with the other.

4. Slide the power module along the guide rails into the slot and release the latch. The latch automatically locks the power module in place.

The power module is foolproof. If the power module is oriented incorrectly, you cannot install the power module into the slot. If you encounter a hard resistance while inserting the power module, pull out the power module, reorient it, and then insert it again.

Figure 15 Installing a power module

Removing a power module

CAUTION:

Disconnect the power cord from the module before you remove a power module.

To remove a power module:

1. Hold the handle on the power module with one hand and pull downward the latch. See callout 1 in Figure 16.

2. Pull the power module part out of the slot. Holding the bottom of the power module with the other hand, pull the power module out of the slot slowly. See callout 2 in Figure 16.

Figure 16 Removing a power module

Connecting the power cord

CAUTION:

· Power on the switch after you have completed installation.

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

· Turn off the circuit breaker before you connect the power cord.

Connecting the AC power cord

1. Plug the AC power cord connector into the AC input receptacle of the power module.

2. Use a removable cable tie or self-adhesive cable tie (provided with the power module) to secure the power cord to the handle of the power module.

3. Plug the other end of the power cord into an AC power receptacle, and turn on the circuit breaker.

Figure 17 Using a removable cable tie to secure the power cord to the switch

Connecting the DC power cord

WARNING!

· Before connecting the DC power cord, make sure the circuit breakers for both the positive lead (+) and the negative lead (–) are turned off.

· To avoid electrical shock, a plastic cover is installed over the terminal blocks. Remove the cover when you connect the DC power cord and install the cover in time after you connect the DC power cord.

To connect the DC power cord:

1. Remove the plastic cover over the wiring terminals, and use a Phillips screwdriver to remove the M5 screws.

2. Connect the wire marked with the negative polarity symbol (–) to the negative terminal (–) on the power module. Connect the wire marked with the positive polarity symbol (+) to the positive terminal (+) on the power module.

3. Fasten the M5 screws to secure the wires and then install the plastic cover.

4. Connect the other end of the power cord to the power source. Turn on the circuit breaker.

Figure 18 Connecting the DC power cord

(Optional) Installing a DC input terminal block

You can order an extension cable and a DC input terminal block to supply power to the switch if the following situations exist:

· The power distribution cabinet is far away from the switch.

· The power cord size does not apply to the power distribution cabinet.

· Terminals on the power distribution cabinet do not support customization.

A DC input terminal block provides eight pairs of terminals. Each pair has the blue terminal for reconnecting the negative lead and the white terminal for reconnecting the positive lead. A maximum of eight DC power line reconnections are supported. The terminals support a wire with a size of 10 mm2 to 35 mm2 (0.02 sq.in to 0.05 sq.in).

To attach a DC input terminal block to a rack:

1. Install cage nuts on the rack posts.

2. Use screws to attach the DC input terminal block to the rack.

Figure 19 Attaching a DC input terminal block to a rack

To connect power wires to a DC input terminal block:

1. As shown by callout 1 in Figure 20, insert the wires of the extension cable into the upper-row terminals on the DC input terminal block, and insert the other ends of the wires into the terminals on the power distribution cabinet.

2. As shown by callout 2 in Figure 20, insert the wires of the DC power cord into the lower-row terminals on the DC input terminal block, and insert the other ends of the wires into the terminal block on the switch.

Figure 20 Connecting wires to a DC input terminal block

(Optional) Installing transceiver modules

CAUTION:

· To prevent particles from entering the ports, keep the dust plugs in the SFP+/SFP ports if you are not to install transceiver modules or cables in the ports.

· To prevent particles from entering the ports, install the dust plugs that come with the LPUs in the QSFP+/QSFP28 ports if you are not to install transceiver modules or cables in the ports.

Installing an SFP+/SFP/QSFP+/QSFP28 module

CAUTION:

· Read the following instructions before you install an SFP+/SFP/QSFP+/QSFP28 module. Failure to follow these instructions might cause damage to the module.

· Do not remove the dust plug from the SFP+/SFP/QSFP+/QSFP28 module if you are not to connect an optical fiber to the module.

· Before you install an SFP+/SFP/QSFP+/QSFP28 module, remove the optical fiber (if any) from it.

To install an SFP+/SFP/QSFP+/QSFP28 module:

1. Unpack the module.

Do not touch the golden plating of the module.

2. Pivot the clasp of the module up. Holding the module, gently push the module into the slot until it has firm contact with the slot, as shown in Figure 21.

? For a module that uses a plastic pull latch, skip this step.

? For an SFP+ module, press the module down so you can push the module straight into the port.

? If you cannot hold the module by its two sides because of high module density, press the module on its head end to push it in.

Figure 21 Installing an SFP+/SFP/QSFP+/QSFP28 module

Connecting an SFP+/QSFP+/QSFP28/QSFP+ to SFP+ cable

CAUTION:

When you connect a fiber cable, make sure the bend radius of the cable is not less than eight times the fiber diameter.

The cables are hot swappable.

Use SFP+ cables to connect SFP+ ports, QSFP+ cables to connect QSFP+ ports, QSFP28 cables to connect QSFP28 ports, and QSFP+ to SFP+ cables to connect QSFP+ and SFP+ ports.

To connect an SFP+/QSFP+/QSFP28/QSFP+ to SFP+ cable:

1. Unpack the cable.

2. Plug the cable connector into the port. Make sure the cable connector is correctly oriented.

Cabling recommendations

Routing network cables

The cable management brackets are installed on the two sides of the LPU section. As a best practice, route network cables from the left and right sides.

Routing power cords

When you route power cords, take consideration of the layout of the equipment room, including the locations of the power distribution cabinet, AC power receptacles, and lightning protection box. Place all re-connecting facilities, such as receptacles, at the rack bottom (Do not place them at a location out of the rack and easy to reach.)

The power modules of the switch are located at the two sides of the rear panel. As a best practice, route power cords from left and right sides of the switch.

Accessing the switch

The first time you access the switch you must use a console cable to connect a console terminal, for example, a PC, to the console port on the switch.

Connecting the console cable

IMPORTANT:

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

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

To connect the console cable:

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

2. Plug the RJ-45 connector of the console cable to the console port of the switch.

Figure 22 Connecting a terminal to the console port

Verification before login

Before you log in to the switch, perform the following tasks:

· Verify that the switch has been correctly installed.

· Verify that all cards have been correctly installed.

· Verify that all the network cables, fibers, power cord, and grounding cables have been correctly connected.

· Verify that the voltage of the power source is as required.

· Verify that the console cable has been correctly connected, the terminal or PC used for configuration has started, and the configuration parameters have been set.

· Verify that the switch has been powered on.

Viewing switch startup information

After the switch is powered on, the configuration terminal output startup information. The output information varies by software versions.

The following shows a sample output you will see when the switch starts up:

System is starting...

Press Ctrl+D to access BASIC-BOOTWARE MENU...

Press Ctrl+T to start memory test

Booting Normal Extended BootWare

The Extended BootWare is self-decompressing..........Done.

****************************************************************************

* *

* BootWare, Version 2.03 *

* *

****************************************************************************

Compiled Date : Aug 10 2016

CPU Type : XLP208

CPU Clock Speed : 1000MHz

Memory Type : DDR3 SDRAM

Memory Size : 8192MB

Memory Speed : 666MHz

BootWare Size : 1536KB

Flash Size : 1024MB

BASIC CPLD Version : 2.0

EXTENDED CPLD Version : 2.0

PCB Version : Ver.B

BootWare Validating...

Press Ctrl+B to access EXTENDED-BOOTWARE MENU...

Loading the main image files...

Loading file flash:/S12500X-CMW710-SYSTEM-R2609.bin...................... ..

............................................................................

..........Done.

Loading file flash:/S12500X-CMW710-BOOT-R2609.bin... ........................

............................................................................

........Done.

Image file flash:/S12500X-CMW710-BOOT-R2609.bin is self-decompressing.........

................................Done.

System image is starting...

Cryptographic algorithms tests passed.

Line aux0 is available.

Press ENTER to get started.

Press Enter at the prompt. When the prompt <Sysname> appears, you can configure the switch.

After the switch finishes startup, verify the following items:

· The cooling system is working, and you can hear fan rotating noise and feel air being blown out.

· The LEDs on the MPUs show that the system is operating correctly. For more information about LEDs, see H3C S12500X-AF Switch Series Installation Guide.

Obtaining documentation

Take the following steps to get latest documents from the H3C website at www.h3c.com.hk.

1. Go to http://www.h3c.com.hk/Technical_Documents.

2. Choose the desired product category and model.

For more information about the product and installation procedures, log in to www.h3c.com.hk

H3C S12502X-AF Switch Quick Start Guide-6PW103

Connecting an SFP+/QSFP+/QSFP28/QSFP+ to SFP+ cable

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