TP Link Network Router TL SM321A User Manual
User Guide  
TL-SM321A / TL-SM321B  
1000Base-BX WDM Bi-Directional SFP Module  
Rev:1.0.3  
7106503185  
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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  
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:  
¾
¾
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and  
receiver.  
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¾
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.  
This device complies with part 15 of the FCC Rules. Operation  
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is subject to the following two conditions:  
1)  
2)  
This device may not cause harmful interference.  
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  
¾
Do not use this product near water, for example, in a wet  
basement or near a swimming pool.  
¾
Avoid using this product during an electrical storm.  
There may be a remote risk of electric shock from  
lightning.  
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CONTENTS  
Package Contents.................................................................... 1  
Chapter 1.  
Chapter 2.  
Chapter 3.  
Introduction...................................................... 1  
Features of the product................................... 3  
Installation Guide............................................. 3  
Specifications .......................................................................... 4  
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Package Contents  
The following items should be found in your package:  
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¾
¾
1000Base-BX WDM Bi-Directional SFP Module  
Static Shielding Bag  
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-SM321 Series 1000Base-BX WDM Bi-Directional SFP  
Module is a hot pluggable 3.3V SFP (Small-Form-Factor)  
Bi-Directional transceiver module, which adopts WDM  
(Wavelength Division Multiplexing) technology that increases  
the information carrying capacity of fiber via multiplex transmit  
and receive signals at different wavelengths on single strand  
cable. It’s designed expressly for high-speed communication  
applications that requires rates of up to 1.25Gbit/sec. It can  
effectively extend the diameter and bandwidth of the  
workgroup. TL-SM321 Series SFP Module can be installed  
inside the Switch which supplies power directly, it can  
cooperate with TP-LINK products as the table below:  
1
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SFP Module  
Cooperated TP-LINK products  
Managed Gigabit Switch  
TL-SG3109  
TL-SL3428  
TL-SL3452  
Web Smart Gigabit Switch  
TL-SG2109WEB  
TL-SG2216WEB  
TL-SG2224WEB  
TL-SL2210WEB  
TL-SM321A  
TL-SM321B  
TL-SL2218WEB  
TL-SL2428WEB  
TL-SL2452WEB  
Unmanaged Gigabit-Uplink Switch  
TL-SL1351  
SMB Broadband Router  
TL-R4199G  
TL-R4299G  
Gigabit Media Converter  
MC220L  
) 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.  
2
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Chapter 2. Features of the product  
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Single-mode WDM Bi-Directional SFP Module operate at  
1550nm/1310nm  
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¾
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Bi-Directional transmit with one fiber which can save cost  
Single LC receptacle optical interface compliant  
The maximal transmission distance of Single-mode WDM  
Bi-Directional SFP Module is 10km  
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¾
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Hot-pluggable  
RoHS Compliant  
International Class 1 laser safety certified  
Chapter 3. Installation Guide  
The following will take the installation procedure in the switch for  
example.  
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¾
Push the SFP Module into Switch along the track smoothly  
Plug fiber into the module, without any configuration  
manually, the SFP Module can work.  
10km  
Fiber  
TP-LINK Switch  
TL-SM321A  
TP-LINK Switch  
TL-SM321B  
Warning:  
1.  
2.  
In order to avoid ESD (ElectroStatic Discharge), do not  
touch the output pins on the module with your hand.  
Avoid directly looking towards the output port of the light  
modules and never locate the working fiber pointing to the  
eyes, otherwise may cause injury to your eyes.  
3
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Specifications  
Normal  
TL-SM321A  
Tx:1550nm  
Rx:1310nm  
TL-SM321B  
Tx:1310nm  
Rx:1550nm  
Wave Length  
IEEE 802.3ah 1000Base-BX,  
CSMA/CD, TCP/IP  
Standards and Protocols  
Cable  
Single-mode Fiber  
Fiber Type  
9/125 um Single-mode  
Max. Cable Length  
Data Rate  
10km  
1.25Gbps  
LC  
Port Type  
Power Support  
Safety & Emission  
3.3V  
FCC, CE  
Environmental and Physical  
Operating Temp.  
Storage Temp.  
0℃~70℃ (32℉~158℉)  
-40℃~80℃ (-40℉~176℉)  
Operating Humidity  
Storage Humidity  
10%~90% RH, Non-condensing  
5%~90% RH, Non-condensing  
4
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