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 service the switch or its components.

Figure 1-1 Attaching an ESD wrist strap (S12508G-AF switch)

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, cleanness, EMI, grounding, power supply, ventilation, and space requirements.

As a best practice, reserve a minimum clearance of 1.2 m (3.94 ft) between the switch and walls or other devices.

For more information about the installation site requirements, see H3C S12500G-AF Switch Series Installation Guide.

Installation tools and equipment

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

2 Installing the switch

Switch dimensions

Figure 2-1 S12516G-AF switch dimensions

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

Figure 2-2 S12508G-AF switch dimensions

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

Figure 2-3 S12504G-AF switch dimensions (installed with LSXM104XFAN fan trays)

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

Figure 2-4 S12504G-AF switch dimensions (installed with LSXM104XFANH fan trays)

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

Rack requirements

Table 2-1 Switch dimensions and rack requirements

Model	Switch dimensions	Rack requirements
S12516G-AF	Total depth of 977 mm (38.46 in) · 102 mm (4.02 in) from the rack-facing surface of the mounting brackets to the front ends of the cable management brackets · 875 mm (34.45 in) from the rack-facing surface of the mounting brackets to the fan tray handles 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.
S12508G-AF	Total depth of 977 mm (38.46 in) · 102 mm (4.02 in) from the rack-facing surface of the mounting brackets to the front ends of the cable management brackets · 875 mm (34.45 in) from the rack-facing surface of the mounting brackets to the fan tray handles at the chassis rear
S12504GX-AF	· With LSXM104XFAN fan trays installed, the total depth is 977 mm (38.46 in). ¡ 102 mm (4.02 in) from the rack-facing surface of the mounting brackets to the front ends of the cable management brackets ¡ 875 mm (34.45 in) from the rack-facing surface of the mounting brackets to the fan tray handles at the chassis rear · With LSXM104XFANH fan trays installed, the total depth is 1016 mm (40 in). ¡ 102 mm (4.02 in) from the rack-facing surface of the mounting brackets to the front ends of the cable management brackets ¡ 914 mm (35.98 in) from the rack-facing surface of the mounting brackets to the fan tray handles at the chassis rear

NOTE:

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

Slide rail requirements

IMPORTANT:

The switch is heavy. Install the switch at the lowest possible position.

Attach the required slide rails to the rack before you mount the device in the rack. For more information about attaching slide rails, see the installation guide for the slide rails.

Before attaching the slide rails, read signs on the slide rails to identify the right and left slide rails and their front and rear ends. Attach the front end of the slide rails to the front rack posts. When installing the slide rails, make sure its load-bearing plane is perpendicular to the four rack posts.

Table 2-2 Switch weight and applicable slide rails

Switch model	Max. chassis weight (full configuration)	Applicable slide rails
Switch model	Max. chassis weight (full configuration)	Slide rail model	Adjustment range	Occupied space
S12516G-AF	360 kg (793.65 lb)	LSXM1BSR	630 mm (24.80 in) to 900 mm (35.43 in)	1 U
S12508G-AF	200 kg (440.92 lb)	LSXM1BSR	630 mm (24.80 in) to 900 mm (35.43 in)	1 U
S12508G-AF	200 kg (440.92 lb)	LSTM2KSGD0	500 mm (19.69 in) to 800 mm (31.50 in)	2 U
S12504G-AF	115 kg (253.53 lb)	LSVM1BSR10	630 mm (24.80 in) to 850 mm (33.46 in)	N/A

NOTE:

· The LSXM1BSR slide rail kit includes a left slide rail, a right slide rail, and a front plate. When attaching the slide rails to the rack, make sure all accessories are correctly installed.

· The LSVM1BSR10 slide rails have the load-bearing flanges at its bottom and do not occupy rack space after switch installation.

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:

1. As shown in Figure 2-5, Figure 2-6, and Figure 2-7, 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.

¡ For the S12516G-AF and S12508G-AF switches, cage nuts are not needed for the top two marked square holes on the right front rack post.

¡ For the S12504G-AF switch, install a cage nut in each marked square hole.

Figure 2-5 Installing cage nuts (for the S12516G-AF switch)

Figure 2-6 Installing cage nuts (for the S12508G-AF switch)

Figure 2-7 Installing cage nuts (for the S12504G-AF switch)

Mounting the switch in a rack

WARNING!

To avoid device damage or bodily injury, follow these guidelines to lift and move the device:

· The device is heavy. As a best practice, use a forklift to lift and move the device.

· To move the device manually, use a minimum of four people. Remove fan trays, power modules, and filler panels from the device before moving it. Reinstall these components after installing the device in the rack.

· Use the chassis handles, rather than the handles of the components (fan trays, power modules, and modules) as well as the chassis air vents, to move the chassis.

WARNING!

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

To mount the switch in the rack:

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

2. Place the switch on the slide rails installed on 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 in Figure 2-8.

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

For the S12516G-AF and S12508G-AF switches, the name plate on the upper right corner of the front panel covers two mounting screw holes on the mounting brackets. Screws are not needed for these two mounting holes.

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 rack holes

¡ The cage nuts are installed in the correct holes.

Figure 2-8 Mounting the switch in the rack (S12508G-AF switch)

Grounding the switch

CAUTION:

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

· To guarantee the grounding effect, 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.

To connect the grounding cable to a 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. As shown by callouts 1 and 2 in Figure 2-9, remove the grounding screws from the grounding holes at the rear of the chassis.

A grounding sign is provided with the grounding holes.

3. Use grounding screws to attach the two-hole grounding lug of the grounding cable to the chassis, as shown by callouts 3 and 4 in Figure 2-9.

4. As shown by callouts 5 and 6 in Figure 2-9, 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 2-9 Connecting the grounding cable to a grounding strip (S12508G-AF switch)

3 Installing FRUs

This section describes the installation procedures for the MPUs, service modules, fabric modules, fan trays, and power modules. For the compatibility matrix between these modules and the switch models, see H3C S12500G-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 empty FRU 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 1-1 for attaching an ESD wrist strap.

Installing 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.

· To prevent a filler panel from being drawn into the chassis when fan speed is high, use both hands to grasp the filler panel by its two sides during filler panel installation and removal on an operating switch.

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 MPUs (S12508G-AF and S12516G-AF switches)

For the S12516G-AF and S12508G-AF switches, the ejector levers of the MPUs and the ejector lever pillow blocks for the MPU slots have pink marks.

To install an MPU on an S12508G-AF or S12516G-AF switch:

1. As shown by callouts 1 and 2 in Figure 3-1, remove the filler panel from the target MPU slot.

Keep the removed filler panel secure for future use.

2. As shown by callout 3 in Figure 3-1, pull the ejector levers of the MPU outward.

3. As shown by callout 4 in Figure 3-1, orient the MPU with the lettering on it upright. Holding the front panel of the MPU with one hand and supporting the MPU bottom with the other, push the MPU steadily into the slot along the guide rails.

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

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

5. As shown by callout 4 in Figure 3-1, continue to push the MPU by its middle part on the front panel until you cannot move it.

6. As shown by callout 5 in Figure 3-1, push the ejector levers inward until they come in close contact with the front panel.

7. As shown by callout 6 in Figure 3-1, fasten the captive screws on the MPU.

Figure 3-1 Installing an MPU (S12508G-AF switch)

Installing MPUs (S12504G-AF switch)

For an S12504G-AF switch, the MPU module identifier and MPU slot number are highlighted in pink.

To install an MPU on an S12504G-AF switch:

1. As shown by callouts 1 and 2 in Figure 3-2, remove the filler panel from the target MPU slot.

Keep the removed filler panel secure for future use.

2. As shown by callout 3 in Figure 3-2, pull up the handle of the MPU.

3. As shown by callout 4 in Figure 3-2, orient the MPU with lettering on it upright. Holding the MPU handle with one hand and supporting the MPU bottom with the other, push the MPU steadily into the slot along the guide rails.

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

4. Push the MPU until the brakes on its handle touch the slot edges tightly.

5. As shown by callout 5 in Figure 3-2, pull down the handle until the MPU seats in place.

6. As shown by callout 6 in Figure 3-2, fasten the captive screw on the MPU.

Figure 3-2 Installing an MPU (S12504G-AF switch)

Installing service modules

CAUTION:

· If you are not to install a service module in a service module slot, keep the filler panel in the slot.

The ejector levers of the service modules and the ejector lever pillow blocks for the service module slots have purple marks.

The installation procedure is similar for MPUs and service modules. For information about installing service modules, see "Installing MPUs (S12508G-AF and S12516G-AF switches."

Installing cable management brackets

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

As shown in Figure 3-3, 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 3-3 Installing a cable management bracket (S12508G-AF switch)

NOTE:

You must press the spring tab while you are removing a cable management bracket.

Installing fabric modules

WARNING!

When you hot swap a fabric module, 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.

CAUTION:

· When you install a fabric module, avoid damaging the connectors on it.

· Fan trays cover fabric module slots. Before installing a fan tray, install fabric modules or filler panels in the fabric module slots the fan tray covers.

· To replace or install fabric modules in the slots covered by both fan trays when the switch is operating, do not remove both fan trays at the same time. Remove one fan tray to replace or install fabric modules in slots covered by the fan tray, and then reinstall the fan tray. You can remove the other fan tray only after this fan tray operates correctly.

· For the S12508G-AF switch, you must install a fabric module in slot 10 or 11 or in both slots. For the S12516G-AF switch, you must install a fabric module in slot 18 or 19 or in both slots.

The switch comes with all fabric module slots empty. Purchase fabric modules and filler panels for the fabric module slots as required.

To install a fabric module:

1. Place the fabric module on a workbench and remove the protection box from the connector side of the fabric module. See Figure 3-4.

2. As shown by callout 1 in Figure 3-5, release the ejector levers by pressing the spring clips for the ejector levers.

3. Correctly orient the fabric module. Hold the fabric module front panel near the ejector levers with one hand and support the module bottom with the other. Place the module bottom on the bottom guide rails of the chassis. Align the fabric module with the target slot and insert it into the slot along the guide rails. See callout 2 in Figure 3-5.

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

4. As shown by callout 3 in Figure 3-5, continue to push the fabric module until the brakes on its ejector levers touch the slot edges tightly. Simultaneously rotate the ejector levers inward until the spring clips lock the ejector levers in place and the fabric module is completely seated in the slot.

Figure 3-4 Removing the fabric module from the protection box (S12508G-AF fabric module)

Figure 3-5 Installing a fabric module (S12508G-AF switch)

Installing a filler panel in a fabric module slot

The switch comes with empty fabric module slots. Install a filler panel in a fabric module slot if you are not to install a fabric module in it.

To install a filler panel in a fabric module slot:

1. Loosen the captive screws on the ejector levers and rotate outward the ejector levers.

2. Correctly orient the filler panel. Hold the filler panel front panel near the ejector levers with one hand and support its bottom with the other. Place the filler panel bottom gently on the bottom guide rails of the chassis. Align the filler panel with the fabric module slot. Push the filler panel slowly into the slot along the guide rails. See callout 1 in Figure 3-6.

Keep the filler panel parallel to the fabric module slot to avoid touching other components in the chassis.

3. As shown by callout 2 in Figure 3-6, continue to push the filler panel until the brakes on its ejector levers touch the slot edges tightly. Simultaneously rotate the ejector levers inward.

4. As shown by callout 3 in Figure 3-6, fasten the captive screws on the ejector levers.

Figure 3-6 Installing a filler panel in a fabric module slot (S12508G-AF switch)

Removing a filler panel from a fabric module slot

1. As shown by callout 1 in Figure 3-7, loosen the captive screws on the ejector levers.

2. As shown by callout 2 in Figure 3-7, rotate outward the ejector levers. Then pull the filler panel part way out of the slot.

3. As shown by callout 3 in Figure 3-7, hold the filler panel by the top and bottom edges to pull the filler panel out of the slot.

Keep the removed the filler panel secure for future use.

Figure 3-7 Removing the filler panel from a fabric module slot (S12508G-AF switch)

Installing fan trays

WARNING!

· The fan tray is high and heavy. To avoid device damage or bodily injury, use two people to install or remove a fan tray.

· When you hot swap a fan tray, ensure electricity safety.

· 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.

IMPORTANT:

· Fan trays cover fabric module slots. Before you install a fan tray, install fabric modules or filler panels in the fabric module slots that will be covered by the fan tray.

· 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.

The switch has two fan tray slots: FAN1 and FAN2. One fan tray is sufficient for heat dissipation of the switch. As a best practice, install two fan trays on the switch for redundancy and noise reduction.

To install a fan tray:

1. Orient the fan tray with the lettering on it facing up and align the fan tray with the fan tray slot.

When installing a fan tray on an S12504G-AF switch, align the positioning pin on the fan tray with the positioning hole above the fan tray slot.

2. Holding the two handles of the fan tray, insert the fan tray into the slot. Keep the fan tray as straight as possible.

To install a fan tray in FAN1 slot, align the top and left edges of the fan tray in the slot. To install a fan tray in FAN2 slot, align the top and right edges of the fan tray in the slot.

3. Fasten the captive screws on the fan tray.

Figure 3-8 Installing a fan tray (S12508G-AF switch)

Installing power modules

The power module slots are located at the two sides of the rear panel.

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

To install a power module:

1. Remove the filler panel, if any, from the target slot. As shown in Figure 3-9, put your forefinger in into the hole in the filler panel and pull out the filler panel along the guide rails.

2. Correctly orient the power module.

If you install the power module in a left power module slot, orient the power module with the latch above the handle. If you install the power module in a right power module slot, orient the power module with the latch below the handle.

3. Holding the handle of the power module with one hand and supporting the bottom of the power module with the other, slide the power module along the guide rails into the slot until the latch locks the power module in place.

Figure 3-9 Removing a filler panel (S12508G-AF switch)

Figure 3-10 Installing a power module (S12508G-AF switch)

Connecting the power cord

WARNING!

· Make sure a circuit breaker is provided for each power input line.

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

CAUTION:

Before powering on the device, make sure the fan trays are installed correctly.

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

Figure 3-11 Using a releasable cable tie to secure the power cord to the switch (S12508G-AF switch)

Connecting a DC power cord

To connect a DC power cord:

1. Connect the DC power cord connector to the DC-input receptacle on the power module.

2. Fasten the screw on the connector to secure the DC power cord in place.

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

Figure 3-12 Connecting the DC power cord (S12508G-AF switch)

(Optional) Installing transceiver modules

CAUTION:

· If you are not to install a transceiver module or cable in an SFP+ port, keep the dust plug in the port, to prevent particles from entering the port.

· If you are not to install a transceiver module or cable in a QSFP+/QSFP28 port, install a dust plug that comes with the service module in the QSFP+/QSFP28 port, to prevent particles from entering the port.

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 3-13.

¡ 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 3-13 Installing an SFP+/SFP/QSFP+/QSFP28 module

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

CAUTION:

When you connect a fiber cable, make sure the bend radius of the cable is no less than eight times the fiber diameter.

The cables are hot swappable.

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

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

1. Unpack the cable.

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

4 Cabling recommendations

Routing network cables

The cable management brackets are installed on the two sides of the service module section. As a best practice, route network cables from the left and right sides, as shown in Figure 4-1.

Figure 4-1 Routing network cables (S12508G-AF switch)

5 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 5-1 Connecting a terminal to the console port (S12508G-AF switch)

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 cables, 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.

...

System image is starting...

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 S12500G-AF Switch Series Hardware Reference.

H3C S12500G-AF Switch Series Quick Start Guide-5PW101

Installing MPUs (S12508G-AF and S12516G-AF switches)

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

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