Contents

1 Preparing for installation· 1-1

Safety recommendations· 1-1

General safety recommendations· 1-1

Electricity safety· 1-1

Handling safety· 1-1

ESD prevention· 1-2

Laser safety· 1-2

Examining the installation site· 1-2

Weight support 1-2

Temperature· 1-2

Humidity· 1-3

Cleanliness· 1-3

EMI 1-4

Grounding· 1-4

Power 1-4

Cooling· 1-4

Space· 1-5

Installation accessories· 1-6

 

1 Preparing for installation

H3C S12500CR Ethernet Switch Router Series includes the following models:

·     S12516CR

·     S12508CR

Safety recommendations

To avoid possible bodily injury and equipment damage, read Compliance and Safety Manual provided with the device and all safety recommendations in this chapter carefully before installation. The recommendations do not cover every possible hazardous condition.

General safety recommendations

·     Keep the device clean and dust-free.

·     Do not place the device on a moist area, and avoid liquid flowing into the device.

·     Make sure the ground is dry and flat and anti-slip measures are in place.

·     Keep the device and installation tools away from walk areas.

·     Do not wear loose clothing, jewelry (for example, necklace) or any other things that could get caught in the device when you install and maintain the device.

Electricity safety

·     Clear the work area of possible electricity hazards, such as ungrounded power extension cables, missing safety grounds, and wet floors.

·     Locate the emergency power-off switch in the room before installation so you can quickly shut power off when an electrical accident occurs.

·     Remove all external cables, including power cords, before moving the chassis.

·     Do not work alone when the device has power.

·     Before performing a task that is hazardous when power is present, make sure the device is completely powered off.

·     The device is powered off only when both the power switches on the device are off.

Handling safety

	CAUTION: Hold the chassis handles to move the device. Do not hold the handle of a fan tray, a power supply, or a module, or the air vents of the chassis to move the device. Any attempt to move the device with these parts might cause equipment damage and even bodily injury.

 

IMPORTANT: The maximum load-bearing capacity of the chassis handles is 50 kg (110.23 lb).

 

Remove power supplies, modules, and all external cables, including the power cords, before moving the chassis. As a best practice, use a mechanical lift, such as forklift truck, to move the chassis.

If no mechanical lift is used, follow these guidelines to move the chassis:

·     Cooperate with a minimum of four people to move the chassis.

·     Lift the chassis by using the chassis handles or by supporting the bottom from the two sides.

·     Lift and put down the chassis slowly and never move suddenly.

ESD prevention

To prevent the electric component from being damaged by electrostatic discharge (ESD), follow these guidelines:

·     Ground the device reliably. For how to ground your device, see "Installing the device."

·     Always wear an ESD wrist strap and make sure it is reliably grounded when installing removable components. For how to use an ESD wrist strap, see "Installing removable components."

·     Hold a PCB by its edges. Do not touch any electronic components or printed circuit.

·     Put modules away in antistatic bags for future use.

Laser safety

	WARNING! Do not stare into any fiber port or view directly with non-attenuating optical instruments when the device has power. The laser light emitted from the fiber port might hurt your eyes.

 

The device is a Class 1 laser product.

Examining the installation site

The device must be used indoors. To ensure correct operation and long lifespan of your device, the installation site must meet the requirements in this section.

Weight support

Make sure the floor can support the total weight of the rack, chassis, modules, power supplies, and all other components. To mount the device in a rack, make sure the slide rails can support the total weight of the device and its accessories (modules, power supplies, and transceiver modules).

Additionally, the floor and slide rail loading plan must also consider system expansion, such as adding more modules. For more information, see H3C S12500CR Switch Router Series Hardware Information and Specifications.

Temperature

	CAUTION: If condensation appears on the chassis when you move it to a high-temperature environment, dry the chassis before powering it on to avoid short circuits.

 

To ensure correct operation of the device, make sure the room temperature meets the requirements in Table 1-1.

Table 1-1 Temperature requirements

Temperature	Range
Operating temperature	0°C to 40°C (32°F to 104°F)
Storage temperature	–40°C to +70°C (–40°F to +158°F)

 

Humidity

Maintain appropriate humidity in your equipment room, as described in Table 1-2.

·     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.

Table 1-2 Humidity requirements

Humidity	Range
Operating humidity	5% to 95%, noncondensing
Storage humidity	5% to 95%, noncondensing

 

Cleanliness

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

Table 1-3 Dust concentration limit in the equipment room

Substance	Concentration limit (particles/m3)
Dust particles	≤ 3 x 104 (No visible dust on desk in three days)
NOTE: Dust particle diameter ≥ 5 µm

 

The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and premature aging of components, as shown in Table 1-4.

Table 1-4 Harmful gas limits in the equipment room

Gas	Max. (mg/m3)
SO2	1.0
H2S	0.5
NH3	3.0
Cl2	0.3

 

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the device and application system, adversely affect the device 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, perform the following tasks:

·     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 device far away from radio transmitting stations, radar stations, and high-frequency devices.

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

Grounding

Using a good grounding system to protect your device against lightning shocks, interferences, and ESD is essential to the operating reliability of your device.

Make sure the equipment room grounding system has a resistance value less than 1 ohm.

For more information about grounding the device, see "Installing the device."

Power

Perform the following tasks to meet the power requirements:

1.     Calculate the system power consumption.

The system power consumption varies by module type and density. For more information about system power consumption calculation, see S12500CR Switch Router Series Hardware Information and Specifications.

2.     Identify the number of power supplies.

The total maximum output power of all power supplies must be higher than the system power consumption. For more information about available power supplies, see S12500CR Switch Router Series Hardware Information and Specifications.

3.     Verify that the power system at the installation site meets the requirements of the power supplies, including the input method and rated input voltage. For more information about power supply specifications, see S12500CR Switch Router Series Hardware Information and Specifications.

Cooling

Plan the installation site for adequate ventilation:

·     Leave a minimum of 30 cm (11.81 in) of clearance at the inlet and outlet air vents.

·     The rack for the device has a good cooling system.

·     The installation site has a good cooling system.

·     Verify that the airflow design of the chassis meets the airflow design of the installation site.

Figure 1-1 Airflow through the device (S12516CR)

 

Space

For easy installation and maintenance, follow these space requirements:

·     Reserve a minimum of 1.2 m (3.94 ft) of clearance between the rack and walls or other devices.

·     Make sure the rack has enough space to accommodate the device.

For information about device dimensions and rack requirements, see "Device dimensions and rack requirements."

Installation accessories

Before installation, make sure you have all the required installation accessories.

Table 1-5 Installation accessories

Product code	Description	Quantity	Applicable device models
2150A0GA	S12516CR mounting brackets	1 pair	S12516CR
2150A0GB	S12508CR mounting brackets	1 pair	S12508CR
2113A2AK	S12500CR SEU filler panel	2	All S12500CR models
2113A2AR	S12500CR interface module filler panel	·     S12516CR: 16 ·     S12508CR: 8	All S12500CR models
2114A0B7	S12500CR power supply filler panel	Each power tray has six power supply filler panels.	All S12500CR models
2114A0D3	S12500CR front power tray filler panel	2	All S12500CR models
2114A0D4	S12500CR rear power tray filler panel	2	All S12500CR models
2114A0D1	S12516CR power input area protective plate	1	S12516CR
2114A0D7	S12508CR power input area protective plate	1	S12508CR
2150A0G9	S12516CR cable management bracket	·     MPU section: 1 kit ·     Interface module section: 4 kits	S12516CR
2150A0GC	S12508CR cable management bracket	·     MPU section: 1 kit ·     Interface module section: 2 kits	S12508CR
0223A1L9	S12516CR air filter	1	S12516CR
0223A1L8	S12508CR air filter	1	S12508CR
26020075	Cage nut	·     S12516CR: 28 ·     S12508CR: 20	All S12500CR models
26020141	M6 screw	·     S12516CR: 24 ·     S12508CR: 16	All S12500CR models
0404A0EE	Grounding cable	1	All S12500CR models
28050001	ESD wrist strap	1	All S12500CR models
04042967	Console cable	1	All S12500CR models