H3C S7502 Bedienungsanleitung

Installation Manual

H3C S7502 Ethernet Switch Table of Contents

Table of Contents

Chapter 4 Hardware Installation ..................................................................................................4-1

4.1 Confirming the Installation Preparations............................................................................4-1

4.2 Installation Flowchart.........................................................................................................4-1

4.3 Mounting the Switch to the Designated Position...............................................................4-2

4.3.1 Mounting the Switch onto a 19” Standard Rack......................................................4-2

4.3.2 Mounting the Switch on the Tabletop......................................................................4-3

4.4 Installing Modules of the Switch ........................................................................................4-3

4.5 Connecting the Grounding Cable and Power Cables........................................................4-3

4.5.1 Connecting the Grounding Cable............................................................................4-3

4.5.2 Connecting the AC Power Cable ............................................................................4-5

4.5.3 Connecting the DC Power Cable............................................................................4-6

4.5.4 Connecting the PoE Power Cable...........................................................................4-8

4.6 Connecting Interface Cables .............................................................................................4-9

4.6.1 Connecting the Console Cable ...............................................................................4-9

4.6.2 Connecting the COM Port Cables.........................................................................4-10

4.6.3 Connecting Category-5 Cables.............................................................................4-11

4.6.4 Connecting Fibers.................................................................................................4-12

4.7 Cabling.............................................................................................................................4-14

4.7.1 Table-Mounted Switch ..........................................................................................4-14

4.7.2 Rack-Mounted Switch...........................................................................................4-14

4.8 Cable Binding...................................................................................................................4-14

4.8.1 Use of Labels ........................................................................................................4-14

4.8.2 Precautions for Cable Binding...............................................................................4-14

4.9 Checking the Installation..................................................................................................4-18

Installation Manual

H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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Chapter 4 Hardware Installation

The S7502 is designed for indoor application and must be fixed when applied.

4.1 Confirming the Installation Preparations

zMake sure that you have read Chapter 3 carefully.

zAll requirements introduced in Chapter 3 have been met.

4.2 Installation Flowchart

Figure 4-1 Installation flowchart of the switch

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H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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Note:

The switch should be equipped with at least two sets of power supply.

4.3 Mounting the Switch to the Designated Position

4.3.1 Mounting the Switch onto a 19” Standard Rack

The S7502 has an integrated chassis and should operate indoors.

Figure 4-2 Mount an S7502 Ethernet switch onto a 19” standard rack

Take the following installation steps.

Step 1: Confirm the following before installation:

zThe rack has been well fixed. The installation position for the switch has been well

arranged and there is no obstacle around.

zThe switch is ready for installation and has been carried to a place near the rack

and convenient for moving.

Step 2: Install the wiring channel and mounting angle sets shipped with the switch.

Step 3: With two people lifting the switch at both sides slowly, move the switch to a

place in front of the rack.

Step 4: Carry the switch a little higher than the rack tray or guides. Put the switch on the

tray or the guides and push it into the rack.

Step 5: Fasten the angle sets on the 19-inch columns to seat the switch in the chassis.

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H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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4.3.2 Mounting the Switch on the Tabletop

Step 1: Confirm the following before installation:

zThe table is firm enough to hold the switch and cables.

zNo obstacles around the table that may interfere with the installation.

zThe switch is ready for installation and has been carried to a place near the

cabinet and convenient for moving.

Step 2: With two people lifting the switch at both sides slowly, position the switch to a

place in front of the table.

Step 3: Carry the switch a little higher than the table and put the switch on it.

4.4 Installing Modules of the Switch

Common modules of the switch include the cards, power module, and fan frame. For

detailed installation procedures, see Chapter 6 “Hardware Maintenance”.

4.5 Connecting the Grounding Cable and Power Cables

4.5.1 Connecting the Grounding Cable

Caution:

For the safety of personnel and equipments, the switch must be well grounded. The

resistance between switch chassis and the ground should be less than 1 ohm.

Note:

The grounding screw is located on the bottom right corner of the chassis.

I. Common grounding environment

Step 1: Remove the screw from the grounding hole in the switch chassis.

Step 2: Set the grounding cable connector shipped with the switch around the

grounding screw.

Step 3: Fasten the grounding screw in the grounding hole on the chassis.

Step 4: Connect the other end of the grounding cable to the grounding strip of the

switch.

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H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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Note:

Each cabinet has a grounding strip, to which you can connect the grounding cable of a

switch.

II. Other grounding environment

Hereafter introduced some methods for grounding the switch in different environment.

zIf there is a grounding strip in the Ethernet switch installation environment, attach

one end of the yellow-green protection grounding cable to the grounding screw of

the grounding strip and fasten the captive nuts. The grounding cable of a switch

shall be connected to the project ground of the equipment room.

Caution:

Note that the fire main and lightning rod of a building are not suitable for grounding the

switch.

Figure 4-3 Connect the grounding cable to the grounding strip

zIf there is no grounding strip but earth nearby and the grounding body is allowed to

be buried, you can simply hammer an angle iron or steel pipe no shorter than 0.5m

into the earth. In this case, the yellow-green protection grounding cable should be

welded with the angle iron (steel pipe) and the joint should be processed against

eroding.

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H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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Figure 4-4 Connect the grounding cable to the grounding body nearby

zIf there is no grounding strip and no grounding body can be buried, and the

Ethernet switch is AC powered, you can grounded through the PE wire of the AC

power supply. In this case, make sure that the PE wire of the AC power supply has

been well grounded at the power distribution room or AC power supply

transformer side.

Figure 4-5 Connect the grounding cable through AC PE wire

4.5.2 Connecting the AC Power Cable

Caution:

For lightning protection, the AC power should be led through the external lightning

device into the S7502.

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(1)

(2) (3)

(4)(5)

(1) AC input socket (2) Power LED

(3) Handle of power module (4) Power switch

(5) Bail latch

Figure 4-6 S7502 power module

The power module has AC input socket with bail latch and a power LED on its front

panel (The LED is described in 6.1.2).

Step 1: Pull up the bail latch to the right. The bail latch is on the left side of the panel.

Step 2: Insert the AC power cable which is shipped with the switch into the AC input

socket of the power supply module.

Step 3: Push back the bail latch to keep the power cable from being removed.

Step 4: Insert the other end of the power cable into the site power socket.

4.5.3 Connecting the DC Power Cable

Caution:

Power off all the related parts of the switch before connecting DC power cable.

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PGNDRTN -48V

-48V 60V;15A

(1) (2) (3)

(4)

(1) Power switch (2) Power LED

(3) Handle of power module (4) DC power socket

RTN: -48 V working ground -48V: -48 V DC power

PGND: protection ground (You do not need to connect it because it is connected to the

chassis from inside the power module).

Figure 4-7 S7502 DC power module

Follow these steps to connect the DC power cable:

Step 1: Install the DC power plug components.

Dustproof cover

Cable tie

Connector Screw 4 Cable 2

Screw 1 Screw 2

Screw 3 Cable 1 Dustproof cover

Cable tie

Connector Screw 4 Cable 2

Screw 1 Screw 2

Screw 3 Cable 1

Figure 4-8 DC power plug

As shown in Figure 4-8, first insert two cables into the appropriate holes through

dust-proof shield, and then fix the cables separately by using screws 1 and 2. Make

sure that the positive and negative ends of the cable are inserted appropriately in

accordance with the silkscreen print on the holes.

Fix the dust-proof shield by screws 3 and 4 by using a small flathead screwdriver, see

Figure 4-8.

Enlace the two cables to the polarizing key at the back of the dust-proof shield using the

cable tie, as shown in Figure 4-8.

Step 2: After installing connector component, directly insert the component into DC

socket on the cabinet (Note that the component cannot be inserted in the wrong

Installation Manual

H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

4-8

direction), and then fix the screws 1 and 2 carried by the connector itself to the

appropriate holes on the cabinet socket using a small flathead screwdriver.

Step 3: Check whether the power LED is ON. If the LED is ON, it indicates the power

cable is properly connected.

4.5.4 Connecting the PoE Power Cable

(a) AC power input socket (b) DC power output

Figure 4-9 Appearance of the PSE

Note:

For the method of installing the PSE2500-A3, see the related manual shipped with the

switch.

(1)(2)(3)

(1) Grounding screw (2) RTN(+) terminal of of PoE power supply

input

(3) NEG(-) terminal of PoE power supply input

Figure 4-10 Rear view of an S7502 PoE chassis

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H3C S7502 Ethernet Switch Chapter 4 Hardware Installation

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Follow these steps to connect the PoE power cable:

Step 1: Loosen the mounting screw of the PoE terminal block on the rear panel of the

switch.

Step 2: Insert the -48V OT terminal of the DC power cable to the NEG (-) terminal of the

switch and fasten the mounting screw; insert the other end to the NEG (-) terminal of

the external PoE power supply.

Figure 4-11 Rear panel of external PoE power supply (PSE2500-A3)

Step 3: Insert the GND OT terminal of the DC power cable to the RTN(+) terminal of the

switch and fasten the mounting screw; insert the other end to the RTN(+) terminal on

the rear panel of the external PoE power supply.

Step 4: Insert the PGND OT terminal of the DC power cable to the grounding screw of

the switch and fasten the mounting screw; insert the other end to the grounding bar for

the switch.

4.6 Connecting Interface Cables

4.6.1 Connecting the Console Cable

I. Introduction

Console cable is an 8-core shielded cable. One end of the cable is a crimped RJ-45

connector, which is to be plugged into the Console port of the switch. The other end is

furnished with a DB-9 (male) connector and can be inserted to the 9-core (female)

socket. The following figure illustrates the Console cable.

Figure 4-12 A Console cable

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