Samsung SMTR2000 Users Manual

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Ed. 00

SMT-R2000

User s Manual

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This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright. No information contained here in may be copied, translated, transcribed or duplicated for any commercial purposes or disclosed to the third party in any form without the prior written consent of SAMSUNG Electronics Co., Ltd.

TRADEMARKS

Product names mentioned in this manual may be trademarks and/or registered trademarks of their respective companies.

This manual should be read and used as a guideline for properly installing and operating the product.

This manual may be changed for the system improvement, standardization and other technical reasons without prior notice.

If you need updated manuals or have any question s concerning the contents of the manuals , contact our Document

Center at the following address or Web site:

Address: Document Center 18th Floor IT Center. Dong-Suwon P.O. Box 105, 416, Ma etan-3dong Yeongtong-gu,

Homepage: http://www.samsungdoc s.com

Suwon-si, Gyeonggi -do, Korea 442 -600

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INTRODUCTION

Purpose

This manual introduces Access Point(AP)/Repeater SMT-R2000, and describes how to assemble/disassemble SMT-R2000 and troubleshoot when any failue occurs. In addition, this document describes its hardware configuration and circuits and provides the parts list for SMT-2000.

SMT-R2000 Service Manual

Document Content and Organization

This manual consists of five Chapters and two Appendices.

CHAPTER 1. introduction of SMT-R2000

Introduces SMT-R2000 and describes the configuration and specifications of SMT-R2000.

CHAPTER 2. Assembly and Disassembly describes;

How to assemble/disassemble SMT-R2000.

CHAPTER 3. Troubleshooting describes;

How to troubleshoot when any failure occurs while operating SMT-R2000.

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INTRODUCTION

Conventions

The following types of paragraphs contain special information that must be carefully read and thorough ly understood. Such information may or may not be enclosed in a rectangular box, separating it from the main text , but is always preceded by an icon and/or a bold title.

WARNING Provides information or instructions that the reader should follow in order to avoid

CAUTION Provides information or instructions that the reader should follow in order to avoid

personal injury or fatality.

a service failure or damage to the system.

CHECKPOINT Provides the operator with checkpoints for stable system operation.

NOTE

Indicates additional information as a reference.

Revision History

EDITION DATE OF ISSUE REMARKS

00 12. 2005. Original Draft

II © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

FCC CONCERNS

FCC Compliance Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver

is connected.

- Consult the dealer or an experienced radio/TV technician for help.

RF Exposure Statement:

The antenna(s) used for this device must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

RF Exposure Statement:

This device is restricted to indoor use only within the 5.15-5.25 GHz band to reduce any potential for harmful interference to co-channel MSS operations.

Do not

Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void user’s authority to operate the equipment.

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SAFETY CONCERNS

For product safety and correct operation, the following information must be given to the operator/user and shall be read before the installation and operation.

Symbols

Caution

Indication of a general caution

SMT-R2000 Service Manual

Restriction Indication for prohibiting an action for a product

Instruction Indication for commanding a specifically required action

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SMT-R2000 Service Manual

CAUTION

Caution

When Removes Shield Can When removes Shiel ded Can, be careful of the damage of RF terminal parts

caused by heat.

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SMT-R2000 Service Manual

TABLE OF CONTENTS

INTRODUCTION I

Purpose.........................................................................................................................................................I

Document Content and Organization.........................................................................................................I

Conventions.................................................................................................................................................II

Revision History ...........................................................................................................................................II

FCC/SAFETY CONCER NS IV

Symbols ......................................................................................................................................................IV

Caution.........................................................................................................................................................V

CHAPTER 1. Introduction of SMT-R2000 1-1

1.1 SMT-R2000 Overview..........................................................................................................................1-1

1.2 SMT-R2000 Configuration .................................................................................................................1-2

1.2.1 Front Panel of SMT-R2000.......................................................................................................1-2

1.2.2 Rear Panel of SMT-R2000.......................................................................................................1-3

1.3 Hardware Specification......................................................................................................................1-4

CHAPTER 2. Assembly and Disassembly 2-1

2.1 Configuration of SMT -2100C Main Board......................................................................................2-1

2.2 Disassembling......................................................................................................................................2-2

2.3 Assembling ...........................................................................................................................................2-5

CHAPTER 3. Troubleshooting 3-1

3.1 LED Failure ............................................................................................................................................3-2

3.2 Power Failure........................................................................................................................................3-3

3.3 Wireless Failure -5 GHz......................................................................................................................3-4

3.4 Wireless Failure -2.4 GHz ..................................................................................................................3-5

3.5 Network Connection Failure.............................................................................................................3-6

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SMT-R2000 Service Manual

LIST OF FIGURES

Figure 1.1 Front Panel of SMT-R2000 .............................................................................................. 1-2

Figure 1.2 Rear Panel of SMT-R2000...............................................................................................1-3

Figure 2.1 Configuration of SMT-R2000 Main Board.....................................................................2-1

Figure 2.2 Separating the Stand........................................................................................................2-2

Figure 2.3 Removing Case Screws...................................................................................................2-2

Figure 2.4 Separating the Case .........................................................................................................2-3

Figure 2.5 Removing Screws .............................................................................................................2-3

Figure 2.6 Separating the Main Board and Bottom Case..............................................................2-3

Figure 2.7 Separating the Shield Can...............................................................................................2-4

Figure 2.8 Separating the Antenna....................................................................................................2-4

Figure 2.9 SMT-R2000 Disassembly Diagram ................................................................................2-5

LIST OF TABLES

Table 1.1 LEDs of SMT-R2000...........................................................................................................1-2

Table 1.2 Ports of SMT-R2000 ........................................................................................................... 1-3

Table 1.3 SMT-R2000 Hardware Specification................................................................................1-4

Table 2.1 Main Board Parts .................................................................................................................2-1

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TABLE OF CONTENTS

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VIII © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

CHAPTER 1. Introduction of SMT-

R2000

This chapter introduces SMT-R2000 and describes the configuration and specifications of SMT -R2000.

1.1 SMT-R2000 Overview

SMT -R2000 is a wireless LAN Access Point(AP) that is available in the construction of a wireless network and can be used as a wireless LAN repeater. As a wireless LAN repeater, SMT-R2000 is installed within the cell area of AP or the repeater, and re-transmits the data of wireless terminals, such as wireless notebook and wireless PDA, in the outside of the cell area of neighboring AP to AP.

Ÿ AP: The AP for wireless LAN is an access device for wireless network connection and

performs the relay function among wireless terminals and wired LAN. In general, the AP has a specified use area and a specific frequency.

Ÿ Repeater: If AP signal for wireless LAN is transferred over a specified distance, the

output signal will be attenuated. Therefore, a device that creates new wave or raises output voltage is required to enlarge the transfer distance. To do so, the wireless LAN repeater is used as a device to restore and relay the transfer signals.

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CHAPTER 1. Introduction of SMT-R2000

1.2 SMT-R2000 Configuration

This section describes the configuration of SMT-R2000.

1.2.1 Front Panel of SMT-R2000

The front panel of SMT-R2000 is as shown in the figure below:

Figure 1.1 Front Panel of SMT-R2000

The following table describes each LED of the front panel:

Table 1.1 LEDs of SMT-R2000

LED Function Blue LED turns on Blue LED turns off Blue LED blinks

WAN WAN operation

status

LAN LAN operation

status

2.4 GHz 2.4 GHz operation status

5 GHz 5 GHz operation

status

PWR Power supply

status

WAN is in normal operation

LAN is in normal operation

2.4 GHz Wireless LAN is in operation

5 GHz Wireless LAN is in operation

Power supply is normal

WAN fails to operate

LAN fails to operate Data is being

2.4 GHz Wireless LAN fail to operate

5 GHz Wireless LAN fail to operate

Power supply fails -

Data is being transmitted/received through WAN

transmitted/received through LAN

Data is being transmitted/received through 2.4 GHz Wireless LAN

Data is being transmitted/received through 5 GHz Wireless LAN

1-2 © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

1.2.2 Rear Panel of SMT-R2000

The rear panel of SMT-R2000 is as shown in the figure below:

LAN SIO DC5V RESET WAN

Figure 1.2 Rear Panel of SMT-R2000

The following table describes each port of the rear panel:

Table 1.2 Ports of SMT-R2000

Port Function

DC IN 5 V Port for connecting to local power supply adaptor(5 V, 2 A) RESET External RESET input port of the system WAN LAN port for connecting to WAN(RJ-45) LAN LAN port for connecting to LAN(RJ-45) SIO Used for connecting to PC to check the operational status of SMT -R2000

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CHAPTER 1. Introduction of SMT-R2000

1.3 Hardware Specification

The SMT-R2000 hardware specification is as follows:

Table 1.3 SMT-R2000 Hardware Specification

Category Sub-Category

WLAN

IEEE 802.11a

Item Specification

Wireless Access CSMA/CA Frequency 5.15~5.825 Ghz Transmission

Method Transmission

Output

Bandwidth 20 Mhz or less Spectrum Mask

Adjacent Channel Rejection

OFDM

14 dBm(25 mW) or more in 54 Mbps mode 15 dBm(30 mW) or more in 48 Mbps mode 16 dBm(50 mW) or more in 36 Mbps mode 17 dBm or more in other modes

-20 dBr or less at Fc+/- 11 Mhz

-28 dBr or less at Fc+/- 20 Mhz

-40 dBr or less at Fc+/- 30 Mhz

-65 dBm or less in 54 Mbps mode Receive Sensitivity

-82 dBm or less in 6 Mbps mode

-1 dB or more in 54 Mbps mode 16 dB or more in 6 Mbps mode

IEEE 802.11g

Wireless Access CSMA/CA Frequency 2.4~2.4835 Ghz Transmission

Method Transmission

Output

Bandwidth 20 Mhz or less Spectrum Mask

Adjacent Channel Rejection

OFDM

14 dBm(25 mW) or more in 54 Mbps mode 15 dBm(30 mW) or more in 48 Mbps mode 16 dBm(50 mW) or more in 36 Mbps mode 17 dBm or more in other modes

-20 dBr or less at Fc+/- 11 Mhz

-28 dBr or less at Fc+/- 20 Mhz

-40 dBr or less at Fc+/- 30 Mhz

-65 dBm or less in 54 Mbps mode Receive Sensitivity

-82 dBm or less in 6 Mbps mode

-1 dB or more in 54 Mbps mode 16 dB or more in 6 Mbps mode

1-4 © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

Table 1.3 SMT-R2000 Hardware Specification (Continued)

Category Sub-Category

WLAN IEEE 802.11b

ETHERNET - Link Speed Ethernet 10/100 base -T Power Supply -

Wireless Access CSMA/CA Frequency 2.4~2.4835 Ghz Transmission Method DSSS Transmission Method 17 dBm or more Bandwidth 26 Mhz or less Spectrum Mask Primary Sidelobe: -30 bBr or less Receive Sensitivity -76 dBm or less(11 Mbps) Built-in ANT 2 dBi Dipole ANT ANTENNA Diversity Support- default

Adaptor Input: 100~240 VAC, 50~60 Hz

POE Support- IEEE802.3af compliant Dimension 115h x 60w x 35d(mm) Bottom Case Weight 148 g or less Operational

Temperature

Item Specification

Output: 5 V, 2 A

0~45℃ Environment Temperature

Authentication

Storage Temperature -20~70℃

Korea Authentication for

specification

Europe Authentication for

specification

U.S.A. Authentication for

specification

Wi-Fi WLAN Compatibility test 802.11a/b/g Radio interoperability

MIC

FCC

& WPA1.0

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CHAPTER 1. Introduction of SMT-R2000

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1-6 © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

CHAPTER 2. Assembly and

Disassembly

This chapter describes how to disassemble and assemble SMT-R2000.

2.1 Configuration of SMT-2100C Main Board

The configuration of the SMT-R2000 main board is as shown in the figure below:

WAN

Ethernet PHY

Figure 2.1 Configuration of SMT -R2000 Main Board

LAN

SDRAM

SIO

FLASH

CPU

RF Part(2.4 Ghz)

RF part(5 Ghz)

Table 2.1 Main Board Parts

Item Description

WAN/LAN/SIO Ports for connecting to WAN/LAN/SIO FLASH BOOT/Application image storage memory Ethernet PHY PHY CHIP for connecting to Ethernet 10/100 based SDRAM Application-operation memory CPU Main processor of SMT-R2000

Antenna Connector

RF Part(2.4/5 GHz) RF part for supporting 802.11a/b/g Antenna Connector Connector for connecting to built -in antenna

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CHAPTER 12. Assembly and Disassembly

2.2 Disassembling

This section describes how to disassemble SMT-R2000.

The main body of SMT-R2000 is disassembled according to the following order:

1) Separating the Stand from the Main Body

Separate the stand from the SMT-R2000 main body. Push off the SMT-R2000 main body and the stand in opposite directions each other, and then the stand is separated from the main body as shown in the figure below:

Figure 2.2 Separating the Stand

2) Separating the Case

Remove four screws from the bottom of the main body:

Figure 2.3 Removing Case Screws

2-2 © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

Hold on the ends of the case in the direction of the longer sides and pull out the case in the opposite directions each other, to separate the case. The figure below shows an example that the case is separated:

Figure 2.4 Separating the Case

3) Separating the Main Board and Bottom Case

Remove three screws fixing the main board and bottom case:

Figure 2.5 Removing Screws

Separate the antenna connector from the main board:

Figure 2.6 Separating the Main Board and Bottom Case

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CHAPTER 12. Assembly and Disassembly

4) Separating the Shield Can

Separate the shield can covering the RF block:

Figure 2.7 Separating the Shield Can

Caution in Removing the Shield Can

Take care not to damage RF parts from heat when removing the shield can.

5) Separating the Antenna

Separate the antenna from the bottom case as shown in the figure below:

Figure 2.8 Separating the Antenna

2-4 © SAMSUNG Electronics Co., Ltd.

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SMT-R2000 Service Manual

6) Completing the Disassembly

The figure below shows the status that the SMT-R2000 disassembly is completed:

2.3 Assembling

SMT -R2000 is assembled in the reverse order of ‘2.1 Disassembling’.

Figure 2.9 SMT-R2000 Disassembly Diagram

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CHAPTER 12. Assembly and Disassembly

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2-6 © SAMSUNG Electronics Co., Ltd.

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CHAPTER 3. Troubleshooting

This chapter describes the troubleshooting to the failures that can occur while using SMT -R2000.

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3.1 LED Failure

Failure Description

Nothing is displayed on LED even though SMT-R2000 has turned on.

Troubleshooting

LED has turned off

Is PWR LED normal?

Yes

Is 5 GHz LED normal?

Yes

Is 2.4 GHz LED normal?

Yes

Is WAN/LAN LED normal?

Yes

Is LED normal?

Refer to ‘3.2 Power Failure’.

Refer to ‘3.3 Wireless Failure -5 GHz’.

Refer to ‘3.4 Wireless Failure -2.4 GHz’.

Refer to ‘3.5 Network Connection Failure’.

Replace LED .

Yes

Termination

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SMT-R2000 Service Manual

3.2 Power Failure

Failure Description

SMT -R2000’s body does not turn on because the power is not supplied to it.

Troubleshooting

SMT-R2000 does not turn on.

Is Power properly supplied?

Yes

Has Power Cable been

properly connected ?

Yes

Is Power Cable normal?

Yes

Is Power Jack normal?

Yes

Is Adapter normal?

Supply the Power.

Connect the Power Cable.

Replace the Power Cable.

Replace the Power Jack.

Replace the Adapter.

Yes

Is Regulator normal?

Yes

Termination

Check the soldering status of U32.

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connector

3.3 Wireless Failure -5 GHz

Failure Description

5 GHz(IEEE802.11a) Wireless LAN service cannot be used.

Troubleshooting

Wireless LAN cannot be connected.

- Make the distance between Wireless

Is the distance from

Wireless LAN to SMT-

R2000 short ?

Yes

LAN and SMT-R2000 short..

- Remove the foreign materials

between Wireless LAN and SMT-R2000.

Can SMT-R2000 be

viewed through the scan

of Wireless LAN ?

Yes

Is the connector of

the built-in Antenna

properly connected?

Yes

Is the RF output of the

built -in Antenna

normal?

Yes

Is the reception signal normal?

Check the stuatus of the Wireless LAN PC /Wireless LAN card.

Check the connection status of the built-in Antenna connector.

Check the output status of U8.

Check the power/assembly satus.

Termination

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SMT-R2000 Service Manual

3.4 Wireless Failure -2.4 GHz

Failure Description

2.4 GHz(IEEE802.11b/g) Wireless LAN service cannot be used.

Troubleshooting

2.4 GHz Wireless LAN cannot be connected ..

- Make the distance between

Is the distance from Wireless LAN PC to

SMT-R2000 short?

Yes

Wireless LAN PC and SMT-R2000 short.

- Remove the foreign materials between Wireless LAN PC and SMT-R2000.

Can SMT-R2000 be

viewed through the scan

of the Wireless LAN PC?

Yes

Is the connection of

the built-in Antenna’s

connector normal?

Yes

Is the RF output of the

built -inAntenna connector (P2)

Yes

Is the reception signal

normal?

Check the status of the Wireless LAN PC/Wireless LAN card.

Check the connection status of the built-inSOC1(Mini PCI 珪??) ??

Check the output status of U6.

Check the Power/Assembly status of Q3.

Termination

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Replace Ethernet PHY.

3.5 Network Connection Failure

Failure Description

The access to Internet cannot be made bec ause the connection between SMT-R2000 and Ethernet Network is not made.

Troubleshooting

The access to Internet cannot be made.

Is Ethernet normal? Check the Ethernet network status.

Yes

Has the modular jack

been properly connected?

Yes

Is Ethernet PHY normal?

Yes

Is T1, T5 normal?

Yes

Termination

Check the statuses of J2, J3connection and the cable.

- Check the soldering status of U34, U35.

- Check the soldering status of T1, T5.

- Replace T1, T5.