Connection
Port Type
Fiber Type
Data Rate
Wave Length Tx: 1550 nm
Rx: 1310 nm Rx: 1550 nm
IEEE 802.3z, CSMA/CD, TCP/IP
Single-mode Fiber
9/125 um Single-mode
10 km
1.25 Gbps
LC
3.3 V
FCC, CE
Tx: 1310 nm
Standards and Protocols
Cable
Normal TL-SM321BTL-SM321A
General Specications
Max. Cable Length
Power Support
Safety & Emission
TP-Link Compatible Products
Note:
The SFP modules may be incompatible with other vendors’ devices. We
recommend that you use only TP-Link SFP modules on your TP-Link devices.
Specications
Operation Temperature 0˚C to 70˚C (32˚F to 158˚F)
Storage Temperature -40˚C to 80˚C (-40˚F to 176˚F)
Storage Humidity 5% to 90% RH, Non-condensing
Operation Humidity 10% to 90% RH, Non-condensing
Environmental and Physical Specications
Switch Switch
TL-SM321A
Fiber
TL-SM321B
Please use only the TL-SM321A and TL-SM321B together for fast and reliable connectivity between switches.
TP-Link Switches with gigabit SFP Slots
MC220L
For technical support and other information, please visit
https://www.tp-link.com/support, or simply scan the QR code.
If you have any suggestions or needs on the product guides,
welcome to email techwriter@tp-link.com.cn.
To ask questions, find answers, and communicate with TP-Link
users or engineers, please visit https://community.tp-link.com
to join TP-Link Community.
TP-Link hereby declares that the device is in compliance with the essential requirements and other relevant
provisions of directives 2014/30/EU, 2014/35/EU, 2009/125/EC, 2011/65/EU and (EU)2015/863.
The original EU declaration of conformity may be found at https://www.tp-link.com/en/ce
Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам нормативних
документів та вимогам, що передбачені чинними законодавчими актами України.
CAN ICES-3 (A)/NMB-3(A)
Industry Canada Statement
この装置は、クラスA情報技術装置です。この装置を家庭環境で使用すると電波妨害を引き起こすことがありま
す。この場合には使用者が適切な対策を講ずるよう要求されることがあります。 VCCI-A
Safety Information
Keep the device away from water, re, humidity or hot environments.
Do not attempt to disassemble, repair, or modify the device.
Do not use damaged charger or USB cable to charge the device.
Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.
Do not point or stare directly into the beam or into the optical port of the transceiver when it is operating, as this
can injure your eyesight.
FCC compliance information statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference
that may cause undesired operation.
Any changes or modications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
Product Name: 1000Base-BX WDM Bi-Directional SFP Module
Model Number: TL-SM321A/TL-SM321B
Responsible party:
TP-Link USA Corporation, d/b/a TP-Link North America, Inc.
Address: 145 South State College Blvd. Suite 400, Brea, CA 92821
Website: https://www.tp-link.com/us/
Tel: +1 626 333 0234
Fax: +1 909 527 6803
We, TP-Link USA Corporation, has determined that the equipment shown as above has been shown to comply with
the applicable technical standards, FCC part 15. There is no unauthorized change is made in the equipment and
the equipment is properly maintained and operated.
Issue Date: 2019/12/24
This is a class A product. In a domestic environment, this product may cause radio interference, in which case the
user may be required to take adequate measures.
CE Mark Warning
BSMI Notice
安全諮詢及注意事項
請使用原裝電源供應器或只能按照本產品注明的電源類型使用本產品。
清潔本產品之前請先拔掉電源線。請勿使用液體、噴霧清潔劑或濕布進行清潔。
注意防潮，請勿將水或其他液體潑灑到本產品上。
插槽與開口供通風使用，以確保本產品的操作可靠並防止過熱，請勿堵塞或覆蓋開口。
請勿將本產品置放於靠近熱源的地方。除非有正常的通風，否則不可放在密閉位置中。
請不要私自打開機殼，不要嘗試自行維修本產品，請由授權的專業人士進行此項工作。
此為甲類資訊技術設備，于居住環境中使用時，可能會造成射頻擾動，在此種情況下，使用者會被要求採取某些適
當的對策。
Explanation of the symbols on the product label
RECYCLING
This product bears the selective sorting symbol for Waste
electrical and electronic equipment (WEEE). This means that this
product must be handled pursuant to European directive
2012/19/EU in order to be recycled or dismantled to minimize its
impact on the environment.
User has the choice to give his product to a competent recycling
organization or to the retailer when he buys a new electrical or
electronic equipment.
Note: The product label can be found at the bottom of the product.
限用物質含有情況標示聲明書
產品元件名稱
PCB
外殼
產品元件名稱
PCB
外殼
限用物質及其化學符號
備考： "○"系指該項限用物質之百分比含量未超出百分比含量基準值。
鉛
Pb
○
○
鎘
Cd
○
○
汞
Hg
○
○
六價鉻
CrVI
○
○
多溴聯苯
PBB
○
○
多
溴二苯醚
PBDE
○
○
