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                        User Guide 
TL-SM221A / TL-SM221B 
100Base-BX WDM Bi-Directional SFP Module 
 
Rev:1.0.1 
7106503184                                                                                                                                                                                                                                                                                                                                                                                                                
                    
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                          COPYRIGHT & TRADEMARKS  Specifications are subject to change without notice.  is a registered trademark of TP-LINK  TECHNOLOGIES CO., LTD. Other brands and product names are  trademarks or registered trademarks of their respective holders.  No part of the specifications may be reproduced in any form or by any  means or used to make any derivative such as translation, transformation,  or adaptation without permission from TP-LINK TECHNOLOGIES CO.,  LTD. Copyright © 2008 TP-LINK TECHNOLOGIES CO.
                    
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                          FCC 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  guara
                    
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                          2) This device must accept any interference received,  including interference that may cause undesired operation.  Any changes or modifications not expressly approved by the party  responsible for compliance could void the user’s authority to operate  the equipment.  CE Mark Warning    This is a class B product. In a domestic environment, this product  may cause radio interference, in which case the user may be  required to take adequate measures.  SAFETY NOTICES   Do not use this product near
                    
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                          CONTENTS  Package Contents...........................................................................1  Chapter 1. Introduction .............................................................1  Chapter 2. Features of the product..........................................2  Chapter 3. Installation Guide....................................................3  Specifications .................................................................................4                                              
                    
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                          Package Contents  The following items should be found in your package:   Ten 100Base-BX WDM Bi-Directional SFP Modules   Ten Static Shielding Bags   This User Guide  Note:     Make sure that the package contains the above items. If any of the  listed items are damaged or missing, please contact with your  distributor.  Chapter 1. Introduction  TL-SM221 Series 100Base-BX WDM Bi-Directional SFP Module is a  hot pluggable 3.3V SFP (Small-Form-Factor) Bi-Directional  transceiver module, which adop
                    
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                            SFP Module Cooperated TP-LINK products  TL-SG2216WEB Web Smart Gigabit Switch  TL-SM221A   TL-SM221B   TL-SG2224WEB Web Smart Gigabit Switch     Note: If any abnormal status occurs when the light modules of the device  are hot-switched between 1000Mbps and 100Mbps, please try to  power on the device again.  Chapter 2. Features of the product   Single-mode WDM Bi-Directional SFP Module operate at  1550nm/1310nm   Bi-Directional transmit with one fiber which can save cost   Single LC receptacl
                    
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                            Chapter 3. Installation Guide  The following will take the installation procedure in the switch for  example.   Push the SFP Module into Switch along the track smoothly   Plug fiber into the module, without any configuration manually,  the SFP Module can work.  15km TP-LINK Switch TP-LINK Switch TL-SM221B  TL-SM221A  Fiber    Warning:  1. In order to avoid ESD (ElectroStatic Discharge), do not touch  the output pins on the module with your hand.  2. Avoid directly looking towards the output 
                    
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                          Specifications    Normal TL-SM221A TL-SM221B  Tx:1550nm Tx:1310nm  Wave Length  Rx:1310nm Rx:1550nm  IEEE 802.3ah 100Base-BX,  Standards and Protocols  CSMA/CD, TCP/IP  Cable Single-mode Fiber  Fiber Type 9/125 um Single-mode  Max. Cable Length 15km  Data Rate 155Mbps  Port Type LC  Power Support 3.3V  Safety & Emission FCC, CE    Environmental and Physical  Operating Temp. 0 ℃~70 ℃ (32 ℉~158 ℉)  Storage Temp. -40 ℃~80 ℃ (-40 ℉~176 ℉)  Operating Humidity 10%~90% RH, Non-condensing  Storage Hum