Samsung Electronics Co SMTR2000 802.11a/b/g Wireless Access Point User Manual

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Document Title	SMT-R2000 Service Manual 제출용 편집.PDF
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Ed.
00
SMT-R2000
Users Manual
COPYRIGHT
This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright.
No information contained herein 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 questions 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, Maetan-3dong Yeongtong-gu,
Suwon-si, Gyeonggi-do, Korea 442-600
Homepage: http://www.samsungdocs.com
©2005 SAMSUNG Electronics Co., Ltd. All rights reserved.
SMT-R2000 Service Manual
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.
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.
© SA MSUNG Electronics Co., Ltd.
INTRODUCTION
Conventions
The following types of paragraphs contain special information that must be carefully read
and thoroughly 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
personal injury or fatality.
CAUTION
Provides information or instructions that the reader should follow in order to avoid
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
II
EDITION
DATE OF ISSUE
REMARKS
00
12. 2005.
Original Draft
© SAMSUNG Electronics Co., Ltd.
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.
© SAMSUNG Electronics Co., Ltd.
III
SMT-R2000 Service Manual
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
Restriction
Indication for prohibiting an action for a product
Instruction
Indication for commanding a specifically required action
© SAMSUNG Electronics Co., Ltd.
IV
SMT-R2000 Service Manual
Caution
CAUTION
When Removes Shield Can
When removes Shielded Can, be careful of the damage of RF terminal parts
caused by heat.
© SAMSUNG Electronics Co., Ltd.
SMT-R2000 Service Manual
TABLE OF CONTENTS
INTRODUCTION
Purpose......................................................................................................................................................... I
Document Content and Organization......................................................................................................... I
Conventions................................................................................................................................................. II
Revision History........................................................................................................................................... II
FCC/SAFETY CONCERNS
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
1.3
1.2.1
Front Panel of SMT-R2000....................................................................................................... 1-2
1.2.2
Rear Panel of SMT-R2000....................................................................................................... 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
© SAMSUNG Electronics Co., Ltd.
VI
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
© SAMSUNG Electronics Co., Ltd.
VII
TABLE OF CONTENTS
This page is intentionally left blank.
VIII
© SAMSUNG Electronics Co., Ltd.
SMT-R2000 Service Manual
CHAPTER 1. Introduction of SMTR2000
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.
© SAMSUNG Electronics Co., Ltd.
1-1
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
WAN is in normal
operation
WAN fails to
operate
Data is being
transmitted/received
through WAN
LAN
2.4 GHz
LAN operation
LAN is in normal
LAN fails to operate
Data is being
status
operation
2.4 GHz operation
2.4 GHz Wireless
2.4 GHz Wireless
Data is being
status
LAN is in operation
LAN fail to operate
transmitted/received
transmitted/received
through LAN
through 2.4 GHz
Wireless LAN
5 GHz
5 GHz operation
5 GHz Wireless
5 GHz Wireless
Data is being
status
LAN is in operation
LAN fail to operate
transmitted/received
through 5 GHz
Wireless LAN
PWR
1-2
Power supply
status
Power supply is
normal
Power supply fails
© SAMSUNG Electronics Co., Ltd.
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:
DC5V RESET WAN
LAN
SIO
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
© SAMSUNG Electronics Co., Ltd.
1-3
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
WLAN
Sub-Category
IEEE 802.11a
Item
Specification
Wireless Access
CSMA/CA
Frequency
5.15~5.825 Ghz
Transmission
Method
OFDM
Transmission
14 dBm (25 mW) or more in 54 Mbps mode
Output
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
Bandwidth
20 Mhz or less
Spectrum Mask
-20 dBr or less at Fc+/- 11 Mhz
-28 dBr or less at Fc+/- 20 Mhz
-40 dBr or less at Fc+/- 30 Mhz
Receive Sensitivity
-65 dBm or less in 54 Mbps mode
-82 dBm or less in 6 Mbps mode
IEEE 802.11g
Adjacent Channel
-1 dB or more in 54 Mbps mode
Rejection
16 dB or more in 6 Mbps mode
Wireless Access
CSMA/CA
Frequency
2.4~2.4835 Ghz
Transmission
OFDM
Method
Transmission
14 dBm (25 mW) or more in 54 Mbps mode
Output
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
Bandwidth
20 Mhz or less
Spectrum Mask
-20 dBr or less at Fc+/- 11 Mhz
-28 dBr or less at Fc+/- 20 Mhz
-40 dBr or less at Fc+/- 30 Mhz
Receive Sensitivity
-65 dBm or less in 54 Mbps mode
-82 dBm or less in 6 Mbps mode
Adjacent Channel
Rejection
1-4
-1 dB or more in 54 Mbps mode
16 dB or more in 6 Mbps mode
© SAMSUNG Electronics Co., Ltd.
SMT-R2000 Service Manual
Table 1.3 SMT-R2000 Hardware Specification (Continued)
Category
WLAN
ANTENNA
Sub-Category
IEEE 802.11b
Item
Specification
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
Diversity
Support- default
ETHERNET
Link Speed
Ethernet 10/100 base -T
Power Supply
Adaptor
Input: 100~240 VAC, 50~60 Hz
Output: 5 V, 2 A
Bottom Case
Environment
Authentication
POE
Support- IEEE802.3af compliant
Dimension
115h x 60w x 35d(mm)
Weight
148 g or less
Operational
Temperature
0~45℃
Storage Temperature
-20~70℃
Korea
Authentication for
specification
MIC
Europe
Authentication for
CE
Temperature
specification
U.S.A.
Authentication for
FCC
specification
Wi-Fi
WLAN Compatibility test
802.11a/b/g Radio interoperability
& WPA1.0
© SAMSUNG Electronics Co., Ltd.
1-5
CHAPTER 1. Introduction of SMT-R2000
This page is intentionally left blank.
1-6
© SAMSUNG Electronics Co., Ltd.
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
LAN
SIO
FLASH
RF Part(2.4 Ghz)
Antenna
Connector
Ethernet PHY
SDRAM CPU
RF part(5 Ghz)
Figure 2.1 Configuration of SMT-R2000 Main Board
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
RF Part(2.4/5 GHz)
RF part for supporting 802.11a/b/g
Antenna Connector
Connector for connecting to built-in antenna
© SAMSUNG Electronics Co., Ltd.
2-1
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.
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
© SAMSUNG Electronics Co., Ltd.
2-3
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.
SMT-R2000 Service Manual
6) Completing the Disassembly
The figure below shows the status that the SMT-R2000 disassembly is completed:
Figure 2.9 SMT-R2000 Disassembly Diagram
2.3
Assembling
SMT-R2000 is assembled in the reverse order of ‘2.1 Disassembling’.
© SAMSUNG Electronics Co., Ltd.
2-5
CHAPTER 12. Assembly and Disassembly
This page is intentionally left blank.
2-6
© SAMSUNG Electronics Co., Ltd.
CHAPTER 3. Troubleshooting
This chapter describes the troubleshooting to the failures that can occur while using
SMT-R2000.
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?
No
No ? ? 城 Refer to ‘3.2 Power Failure’.
Yes
Is 5 GHz LED normal?
No
Refer to ‘3.3 Wireless Failure -5 GHz’.
No ? ? 城
Yes
Is 2.4 GHz LED normal?
No
Refer to ‘3.4 Wireless Failure -2.4 GHz’.
No ? ? 城
LED
Yes
Is WAN/LAN LED normal?
No
No ? ? 城 Refer to ‘3.5 Network Connection Failure’.
LED
Yes
Is LED normal?
No
No ? ? 城 Replace LED.
Yes
Termination
3-2
© SAMSUNG Electronics Co., Ltd.
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.
No
Supply the Power.
Is Power properly supplied?
Yes
Has Power Cable been
properly connected ?
No
Connect the Power Cable.
Yes
No
Is Power Cable normal?
Replace the Power Cable.
Yes
Is Power Jack normal?
No
Replace the Power Jack.
Yes
No
Is Adapter normal?
Replace the Adapter.
Yes
No
Is Regulator normal?
Check the soldering status of U32.
Yes
Termination
© SAMSUNG Electronics Co., Ltd.
3-3
3.3 Wireless Failure -5 GHz
Failure Description
5 GHz(IEEE802.11a) Wireless LAN service cannot be used.
Troubleshooting
Wireless LANcannot be connected.
Is the distance from
Wireless LAN to SMTR2000 short ?
No
- Make the distance between Wireless
LAN and SMT-R2000 short..
- Remove the foreign materials
between Wireless LAN and
SMT-R2000.
Yes
Can SMT-R2000 be
viewed through the scan
of Wireless LAN ?
No
Check the stuatus of the Wireless
LAN PC/Wireless LAN card.
? 汾
懺??
???
獺??
No
Check the connection status of
the built-in Antenna connector.
Yes
Is the connector of
the built-in Antenna
properly connected?
Yes
Is the RF output of the
built-in Antenna connector
normal?
No
Check the output status of U8.
Yes
Is the reception signal normal?
No
Check the power/assembly satus.
Termination
3-4
© SAMSUNG Electronics Co., Ltd.
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..
Is the distance from
Wireless LAN PC to
SMT-R2000 short?
No
Yes
Can SMT-R2000 be
viewed through the scan
of the Wireless LAN PC?
No
- Make the distance between
Wireless LAN PC and SMT-R2000
short.
- Remove the foreign materials
between Wireless LAN PC and
SMT-R2000.
Check the status of the Wireless LAN
PC/Wireless LAN card.
? 汾
懺??
???
獺??
Yes
Is the connection of
the built-in Antenna’s
connector normal?
No
Check the connection status of the
built-inSOC1(Mini PCI 珪? ? ) ? ?
? 円決塚? 廣 ? 痢 ? 汾 Antenna
Yes
Is the RF output of the
built-inAntenna
connec tor (P2)
normal?決塚? (Etherne
No
Check the output status of U6.
Yes
Is the reception signal
normal?
No
Check the Power/Assembly status of
Q3.
Termination
© SAMSUNG Electronics Co., Ltd.
3-5
3.5 Network Connection Failure
Failure Description
The access to Internet cannot be made because the connection between SMT-R2000 and
Ethernet Network is not made.
Troubleshooting
The access to Internet cannot be made.
No
Is Ethernet normal?
Check the Ethernet network status.
Yes
Has the modular jack
been properly connected?
No
Check the statuses of J2, J3connection
and the cable.
No
- Check the soldering status of U34,
U35.
- Replace Ethernet PHY.
No
- Check the soldering status of T1, T5.
- Replace T1, T5.
Yes
Is Ethernet PHY normal?
Yes
Is T1, T5 normal?
Yes
Termination
3-6
© SAMSUNG Electronics Co., Ltd.

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Creator                         : SMT-R2000 Service Manual 제출용 편집 - Microsoft Word
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Title                           : SMT-R2000 Service Manual 제출용 편집.PDF
Author                          : james_kwon
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