H3C S1850 Series User manual

Preparing for installation

H3C S1850 switch series includes the following models:

•S1850-10P

•S1850-28P

•S1850-28P-PWR

•S1850-52P

Safety recommendations

CAUTION:

The switch is a class-A device and might cause

electromagnetic interference (EMI). Take actions to prevent

EMI as required.

To avoid any equipment damage or bodily injury, read the following

safety recommendations before installation.

•Do not place the switch near water or in a damp environment.

Prevent water or moisture from entering the chassis.

•Place the switch in a clean environment. Dust buildup on the

chassis might result in electrostatic adsorption, which reduces

lifespan of the device and can cause communication failure.

•Keep the air inlet and outlet vents of the switch free of

obstruction, and do not stack switches.

•Make sure the operating voltage is stable and in the required

range.

•Before using the switch, ground it reliably by using the

grounding point on the rear panel.

•Before cleaning the switch, remove the power cord from the

switch. Do not clean the switch with a wet cloth or liquid.

•Do not open the chassis while the switch is operating. To avoid

damage, do not open the chassis even when the switch is

powered off.

Installing the switch

Mounting the switch in a 19-inch rack

1. Make sure the rack is reliably grounded and is stable.

2. Use screws to attach the mounting brackets to both sides of the

chassis.

Figure 1 Attaching mounting brackets (S1850-10P)

Figure 2 Attaching mounting brackets

(S1850-28P/S1850-28P-PWR/S1850-52P)

3. Place the switch on a rack shelf in the rack. Slide the switch into

the rack until the mounting brackets are flush against the front

rack posts and the oval holes in the brackets align with the

mounting holes in the front rack posts.

4. Use screws to secure the mounting brackets to the front rack

posts.

Figure 3 Mounting the switch in the rack (S1850-10P)

Figure 4 Mounting the switch in the rack

(S1850-28P/S1850-28P-PWR/S1850-52P)

NOTE:

Mounting brackets are not used for bearing the weight of the

switch. A rack shelf is required on the rack to bear the switch

weight.

Mounting the switch on a workbench

1. Make sure the workbench is clean, sturdy, and reliably

grounded.

2. Place the switch bottom up, and clean the four recessed areas

in the chassis bottom with a soft and dry cloth.

3. Remove the four rubber feet from the adhesive strip provided

with the switch and attach them to the recessed areas.

4. Place the switch upside up on the workbench.

Mounting the switch on a wall

Only an H3C S1850-10P switch can be installed on a wall. The type

of screws used to wall-mount the switch depends on the wall type.

This section uses a concrete wall as an example.

To wall-mount the switch, you need to prepare screw anchors and

screws. The screws must be a minimum of 3 mm (0.12 in) in diameter,

and the screw head must be a minimum of 6 mm (0.24 in) in

diameter.

Figure 5 Screw anchor and screw

To install the switch on a concrete wall:

1. Drill two holes at the same height on the wall. Make sure the

spacing in between is 160 mm (6.30 in), as shown in Figure 6.

The hole depth and diameter depend on the screw anchors and

screws you use. Make sure you can push the anchors to their

full depth in the holes.

Figure 6 Hole spacing

2. Insert one screw anchor into each hole until the anchors are

flush with the wall surface.

3. Drive one screw into each screw anchor, and tighten the screw

to secure it in the wall anchor.

Leave a minimum clearance of 1.5 mm (0.06 in) between the

base of the screw head and the screw anchor so the switch can

hang on the screws securely.

Figure 7 Driving a screw into a screw anchor

4. Align the two mounting holes in the switch chassis bottom with

the two screws on the wall and hang the switch.

5. Make sure the Ethernet ports are facing downwards and the

chassis side panels are perpendicular to the ground.

Figure 8 Wall-mounting the switch

(1) Mounting hole in the switch chassis bottom

Connecting cables

Connecting the console cable

To connect the switch to a configuration terminal, for example, a PC,

by using the console cable:

1. Connect the DB-9 connector of the console cable to the serial

port on the PC.

2. Connect the RJ-45 connector of the console cable to the

console port on the switch.

Figure 9 Connecting the console cable

Connecting the grounding cable

CAUTION:

Correctly connecting the grounding cable is crucial to lightning

protection and EMI protection.

To connect the grounding cable:

1. Use a Phillips screwdriver to remove the grounding screw from

grounding hole in the rear panel of the chassis. Use the

grounding screw to attach the ring terminal of the grounding

cable to the grounding hole. Fasten the grounding screw into the

grounding hole.

2. Use needle-nose pliers to make a loop at the other end of the

cable.

3. Remove the hex nut from a grounding post on the grounding

strip. Attach the loop to the grounding post and fasten the hex

nut.

Figure 10 Connecting the grounding cable

Connecting the power cord

1. Make sure the switch is reliably grounded.

2. Connect one end of the AC power cord to the AC power

receptacle on the switch.

3. Connect the other end of the AC power cord to an AC power

source.

Figure 11 Connecting the power cord

Installing SFP transceiver modules and

optical fibers

CAUTION:

•When you install or remove an SFP transceiver module, do

not touch the golden plating on it.

•Remove the dust plugs from an SFP transceiver module

only when you are to connect optical fibers to the module.

•Before installing an SFP module, remove the optical fibers, i

any, from it.

To install an SFP transceiver module and optical fibers:

1. Wear an ESD wrist strap and make sure it makes good skin

contact and is reliably grounded.

2. Pivot the bail latch of the module up. Holding the module by its

two sides, gently push the module into the slot until it has firm

contact with the slot.

Figure 12 Installing an SFP transceiver module

3. Remove the dust caps from the LC connectors of the optical

fibers, and the dust plugs from the SFP transceiver module.

4. Connect the LC connectors of the optical fibers to the

transceiver module.

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