H3C S12500X-2L User manual

i
Contents
1 Preparing for installation··········································································1-1
Safety recommendations ································································································································1-1
General safety recommendations···········································································································1-1
Electricity safety······································································································································1-1
Moving 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··························································································································································1-3
Grounding ···············································································································································1-4
Power······················································································································································1-4
Cooling····················································································································································1-4
Space······················································································································································1-5
Installation accessories···························································································································1-5

1-1
1 Preparing for installation
Safety recommendations
To avoid possible bodily injury and equipment damage, read Compliance and Safety Manual
provided with the switch and all safety recommendations in this chapter carefully before installation.
The recommendations do not cover every possible hazardous condition.
General safety recommendations
•
Keep the switch clean and dust-free.
•
Do not place the switch on a moist area, and avoid liquid flowing into the switch.
•
Make sure the ground is dry and flat and anti-slip measures are in place.
•
Keep the switch 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 switch when you install and maintain the switch.
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 switch has power.
•
Before performing a task that is hazardous when power is present, make sure the switch is
completely powered off.
Moving safety
WARNING
!
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 switch
. Any attempt to move the switch with these parts might cause equipment damage
and even bodily injury.
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 multiple 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.

1-2
ESD prevention
To prevent the electric component from being damaged by electrostatic discharge (ESD), follow
these guidelines:
•
Ground the switch reliably. For how to ground your switch, see "Grounding the switch."
•
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 "Attaching an ESD wrist strap."
•
Hold a module by its edges. Do not touch electronic components or the printed circuit board
directly with your hands.
•
If you are not to use a module, put it in an antistatic bag and keep it secure.
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 product.
Examining the installation site
The switch must be used indoors. To ensure correct operation and long service life of your switch,
make sure the installation site meets the following requirements.
Weight support
Make sure the floor or ground at the installation site can support the combined weight of the switch
and the rack. The total weight of the switch includes the chassis and its components (for example,
modules and power supplies) and accessories. For the weights of the switch and its components,
see "Weights and dimensions."
To mount the switch in a rack, select slide rails that can support the total weight of the switch.
To assess the load-bearing requirements for the floor and slide rails, take potential system expansion
(for example, adding more modules) also in consideration.
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.
If the temperature in the equipment room is too high, too low, or changes dramatically, the device
reliability is reduced and its service lifetime is shortened. For long-term, highly available operation of
the device, make sure temperature and humidity in the equipment room meets the requirements
described in Table1-1.
Table1-1 Temperature requirements
Temperature Range
Operating temperature 0°C to 40°C (32°F to 104°F)

1-3
Temperature Range
Storage temperature –40°C to +70°C (–40°F to +158°F)
Humidity
Maintain appropriate humidity in your equipment room, as described in Table1-2.
•
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.
Table1-2 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.
Table1-3 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 Table1-4.
Table1-4 Harmful gas limits in the equipment room
Gas Max. (mg/m3)
SO20.2
H2S 0.006
NH30.05
Cl20.01
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.

1-4
•
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 switch 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 switch against lightning shocks, interferences, and
ESD is essential to the operating reliability of your switch.
Make sure the equipment room grounding network has a resistance value less than 1 ohm.
For more information about grounding the switch, see "Grounding the switch."
Power
Perform the following tasks to provide power as required by the switch:
1. Calculate the system power consumption.
The system power consumption varies by module types and quantities. For more information
about the system power consumption, see "Module power consumption and system power
consumption."
2. Identify the number of power supplies based on the system power consumption.
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 "Power supplies."
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 "Power supplies."
Cooling
Plan the installation site for adequate ventilation:
•
Reserve a minimum clearance of 30 cm (11.81 in) around the inlet and outlet air vents.
•
The rack for the switch has a good cooling system.
•
The installation site has a good cooling system.
•
Verify that the airflow of the chassis match that at the installation site.

1-5
Figure1-1 Airflow through the switch
(1) Chassis air intake direction
(2) Chassis air exhaust direction
Space
For easy installation and maintenance, follow these space requirements:
•
Reserve a minimum clearance of 1.2 m (3.94 ft) between the rack and walls or other devices.
•
Make sure the rack has enough space to accommodate the switch. See Table1-5 for rack
requirements.
For more information about chassis dimensions, see "Weights and dimensions."
Table1-5 Switch dimensions and rack requirements
Model Chassis dimensions Rack requirements
S12500X-2L
•Height—133 mm (5.24 in)/3 RU
•Width—440 mm (17.32 in)
•Chassis depth—895 mm (35.24 in)
•Total depth—1013 m (39.88 in)
104 mm (4.09 in) from the rack-facing
surface of the mounting brackets to the
front ends of the cable management
brackets
909 mm (35.79 in) from the rack-facing
surface of the mounting brackets to the
power supply handles at the chassis rear
•Aminimum of 1.1 m (3.61 ft)
in depth (recommended)
•Aminimum of 130 mm (5.12
in) between the front rack
post and the front door.
•A minimum of 950 mm
(37.40 in) between the front
rack post and the rear door.
NOTE:
As a best practice, use a rack that has a single door at the front.
Installation accessories
Before installation, make sure you have all the required installation accessories.
1
1
1
2
2
2

1-6
Table1-6 Installation accessories
Product code Description Quantity
2150A0D6
S12500X-2L mounting brackets
1 pair
2113A1P2
S12500X-2L supervisor engine unit (SEU, also
called MPU) filler panel
2
2113A0YV
S12500X-2L interface module filler panel
1
2124A01H
S12500X-2L interface module protective blank
panel
1
2114A0A4
S12500X-2L power supply filler panel
4
2150A0AB
S12500X-2L cable management bracket
4
•26020141
•26020075
M6 screw and cage nut
4 kits
0404A0EE
Grounding cable
1
28050001 ESD wrist strap 1

1-7
Product code Description Quantity
04042967
Console cable
1